Ordinance No. 1248ORDINANCE NO. 1248
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
VERNON AMENDING CHAPTER 25 OF THE VERNON
MUNICIPAL CODE AND ADOPTING BY REFERENCE THE
DEPARTMENT OF WATER RESOURCES STATE MODEL
LANDSCAPING ORDINANCE; AND REPEALING ALL
ORDINANCES OR PARTS OF ORDINANCES IN CONFLICT
THEREWITH
WHEREAS, the City of Vernon (the "City") is a municipal
corporation and a chartered city of the State of California organized
and existing under its Charter and the Constitution of the State of
California; and
WHEREAS, on October 26, 2009, the City Council of the City
of Vernon adopted Ordinance No. 1161 amending the code of the City of
Vernon by amending Sections 25.100, 25.101, 25.102, 25.103, 25.104,
25.105, 25.106(b), 25.107(a); adding a new Section 25.112; and
adopting by reference the Department of Water Resources State Model
Landscaping Ordinance (the "Model Landscaping Ordinance"); and
WHEREAS, Governor Brown's drought executive order of
April 1, 2015, directed the Department of Water Resources ("DWR") to
update the State's Model Water Efficient Landscape Ordinance through
expedited regulation, establishing even stricter water conservation
measures; and
WHEREAS, the California Water Commission approved the
revised Model Landscaping Ordinance on July 15, 2015, and gave local
agencies until December 1, 2015, to adopt the Model Landscaping
Ordinance or a Local Ordinance which must be at least as effective in
conserving water as the Model Landscaping Ordinance.
WHEREAS, if a City took no action with respect to adopting
an ordinance by the established deadline, the DWR's Model Landscaping
Ordinance would be adopted by statute on January 1, 2016; and
WHEREAS, significant revisions have been made which require
the City to update its existing Water Efficient Landscape Application
and amend Chapter 25 of the Vernon Municipal Code; and
WHEREAS, with the revised Model Landscaping Ordinance, the
size of landscapes subject to the proposed ordinance has been reduced
from 2,500 square feet to 500 square feet in new developments and the
size threshold applies to residential, commercial, industrial and
institutional projects that require a permit, plan check or design
review; and
WHEREAS, the size threshold for existing landscapes that
are being rehabilitated has not changed, remaining at 2,500 square
feet; only existing landscapes that are included in a building or
landscape permit, plan check or design review are subject to the
proposed ordinance; and
WHEREAS, by memorandum dated November 7, 2017, the Director
of Public Works has recommended that the City adopt by reference the
Model Water Efficient Landscape Ordinance of the Department of Water
Resources reducing the threshold of landscapes in new developments
subject to the Model Landscaping Ordinance from 2,500 square feet to
500 square feet; and
WHEREAS, a duly -noticed public hearing has been held to
consider the proposed ordinance changes, and public testimony has
been received and considered; and
WHEREAS, the City Council finds and determines that it is
in the interests of the public health, safety and welfare of the City
of Vernon, its residents, businesses and employees to implement the
recommendations of the Director of Public Works, as set forth in this
- 2 -
Ordinance.
THE CITY COUNCIL OF THE CITY OF VERNON HEREBY ORDAINS:
SECTION 1: The City Council of the City of Vernon hereby
finds and determines that all of the foregoing recitals are true and
correct.
SECTION 2: The City Council of the City of Vernon hereby
amends Chapter 25 of the Vernon Municipal Code and adopts by
reference the Model Water Efficient Landscape Ordinance of the
Department of Water Resources (the "Model Ordinance") as set forth in
Exhibit A which is attached hereto and incorporated by reference.
Three (3) copies of the Model Ordinance so adopted shall be filed and
kept on file for use and examination by the public in the office of
the City Clerk.
SECTION 3: Pursuant to the California Environmental
Quality Act (Public Resources Code Section 21000 et seq.) ("CEQA")
and the State CEQA Guidelines (California Code of Regulations, Title
14, Section 15000 et seq.), the City Council of the City of Vernon
hereby finds that adoption of this Ordinance is categorically exempt
from CEQA review under State CEQA Guidelines Section 15308, because
it has the effect of limiting rather than authorizing the use of
water supplies and resources, and constitutes an action by the City
to assure the maintenance, enhancement, and protection of the
environment through the conservation of water resources. Therefore,
the adoption of this Ordinance is exempt from CEQA.
SECTION 4: Any ordinance, part of an ordinance, or code
section in conflict with this Ordinance is hereby repealed.
SECTION 5: Severability. If any chapter, article,
section, subsection, subdivision, paragraph, sentence, clause,
- 3 -
phrase, or word in this Ordinance or any part thereof is for any
reason held to be unconstitutional or invalid or ineffective by any
court of competent jurisdiction, such decision shall not affect the
validity or effectiveness of the remaining portions of this Ordinance
or any part thereof. The City Council hereby declares that it would
have adopted this Ordinance and each chapter, article, section,
subsection, subdivision, paragraph, sentence, clause or phrase
thereof, irrespective of the fact that any one or more chapters,
articles, sections, subsections, subdivisions, paragraphs, sentences,
clauses, phrases or words be declared unconstitutional, or invalid,
or ineffective.
SECTION 6: Book of Ordinances. The City Clerk, or Deputy
City Clerk, shall attest and certify to the adoption of this
Ordinance and shall cause this Ordinance and the City Clerk's, or
Deputy City Clerk's, certification to be entered in the Book of
Ordinances of the Council of this City. The City Clerk, or Deputy
City Clerk, shall cause this ordinance to be published or posted as
required by law.
- 4 -
SECTION 7: Effective Date. This Ordinance shall go into
effect and be in full force and effect at 12:01 a.m. on the thirty-
first (31st) day after its passage.
APPROVED AND ADOPTED this 5th day of December, 2017.
Nam Melissa Ybarra
ATTEST:
aria E Ayala
City Jerk /r'-�l f�
APPROVED AS TO FORM:
Brian Byun,
Senior Deputy ity Attorney
- 5 -
Title: Mayor
Z,rx:�dy A sesixem
Ff.cvA 3 slism
STATE OF CALIFORNIA )
) ss
COUNTY OF LOS ANGELES )
I, Maria E. Ayala , City Clerk / n_pia: ly Gity Glen.. of the
City of Vernon, do hereby certify that the foregoing Ordinance, being
Ordinance No. 1248 was duly and regularly introduced at a regular
meeting of the City Council of the City of Vernon, held in the City of
Vernon on Tuesday, November 7, 2017, and thereafter adopted at a
meeting of said City Council held on Tuesday, December 5, 2017, by the
following vote:
AYES: Councilmembers: Mayor Ybarra, Mayor Pro-Tem
Woodruff -Perez, Davis, Lopez,
Martinez
NOES: Councilmembers: None
ABSENT: Councilmembers: None
And thereafter was duly signed by the Mayor or Mayor Pro-Tem of
the City of Vernon.
Executed this (9- day of
(SEAL)
December , 2017, at Vernon, California.
- 6 -
Mari E. Ayala
City Clerk /
EXHIBIT A
California Code of Regulations
Title 23. Waters
Division 2. Department of Water Resources
Chapter 2.7. Model Water Efficient Landscape Ordinance
§ 490. Purpose.
(a) The State Legislature has found:
(1) that the waters of the state are of limited supply and are subject to ever increasing demands;
(2) that the continuation of California's economic prosperity is dependent on the availability of
adequate supplies of water for future uses;
(3) that it is the policy of the State to promote the conservation and efficient use of water and to
prevent the waste of this valuable resource;
(4) that landscapes are essential to the quality of life in California by providing areas for active and
passive recreation and as an enhancement to the environment by cleaning air and water, preventing
erosion, offering fire protection, and replacing ecosystems lost to development;
(5) that landscape design, installation, maintenance and management can and should be water
efficient; and
(6) that Section 2 of Article X of the California Constitution specifies that the right to use water is
limited to the amount reasonably required for the beneficial use to be served and the right does not
and shall not extend to waste or unreasonable method of use.
(b) Consistent with the legislative findings, the purpose of this model ordinance is to:
(1) promote the values and benefits of landscaping practices that integrate and go beyond the
conservation and efficient use of water;
(2) establish a structure for planning, designing, installing, maintaining and managing water efficient
landscapes in new construction and rehabilitated projects by encouraging the use of a watershed
approach that requires cross -sector collaboration of industry, government and property owners to
achieve the many benefits possible;
(3) establish provisions for water management practices and water waste prevention for existing
landscapes;
(4) use water efficiently without waste by setting a Maximum Applied Water Allowance as an upper
limit for water use and reduce water use to the lowest practical amount;
(5) promote the benefits of consistent landscape ordinances with neighboring local and regional
agencies;
(6) encourage local agencies and water purveyors to use economic incentives that promote the
efficient use of water, such as implementing a tiered -rate structure; and
(7) encourage local agencies to designate the necessary authority that implements and enforces the
provisions of the Model Water Efficient Landscape Ordinance or its local landscape ordinance.
(c) Landscapes that are planned, designed, installed, managed and maintained with the watershed based
approach can improve California's environmental conditions and provide benefits and realize
sustainability goals. Such landscapes will make the urban environment resilient in the face of climatic
extremes. Consistent with the legislative findings and purpose of the Ordinance, conditions in the urban
setting will be improved by:
(1) Creating the conditions to support life in the soil by reducing compaction, incorporating organic
matter that increases water retention, and promoting productive plant growth that leads to more
carbon storage, oxygen production, shade, habitat and esthetic benefits.
(2) Minimizing energy use by reducing irrigation water requirements, reducing reliance on
petroleum based fertilizers and pesticides, and planting climate appropriate shade trees in urban
areas.
1
(3) Conserving water by capturing and reusing rainwater and graywater wherever possible and
selecting climate appropriate plants that need minimal supplemental water after establishment.
(4) Protecting air and water quality by reducing power equipment use and landfill disposal trips,
selecting recycled and locally sourced materials, and using compost, mulch and efficient irrigation
equipment to prevent erosion.
(5) Protecting existing habitat and creating new habitat by choosing local native plants, climate
adapted non -natives and avoiding invasive plants. Utilizing integrated pest management with least
toxic methods as the first course of action.
Note: Authority cited: Section 65593, Government Code. Reference: Sections 65591, 65593 and 65596,
Government Code.
§ 490.1. Applicability.
(a) After December 1, 2015, and consistent with Executive Order No. B-29-15, this ordinance shall
apply to all of the following landscape projects:
(1) new construction projects with an aggregate landscape area equal to or greater than 500 square
feet requiring a building or landscape permit, plan check or design review;
(2) rehabilitated landscape projects with an aggregate landscape area equal to or greater than 2,500
square feet requiring a building or landscape permit, plan check, or design review;
(3) existing landscapes limited to Sections 493, 493.1 and 493.2; and
(4) cemeteries. Recognizing the special landscape management needs of cemeteries, new and
rehabilitated cemeteries are limited to Sections 492.4, 492.11, and 492.12; and existing cemeteries
are limited to Sections 493, 493. 1, and 493.2.
(b) For local land use agencies working together to develop a regional water efficient landscape
ordinance, the reporting requirements of this ordinance shall become effective December 1, 2015 and
the remainder of this ordinance shall be effective no later than February 1, 2016.
(c) Any project with an aggregate landscape area of 2,500 square feet or less may comply with the
performance requirements of this ordinance or conform to the prescriptive measures contained in Appendix
D.
(d) For projects using treated or untreated graywater or rainwater captured on site, any lot or parcel within
the project that has less than 2500 sq. ft. of landscape and meets the lot or parcel's landscape water
requirement (Estimated Total Water Use) entirely with treated or untreated graywater or through stored
rainwater captured on site is subject only to Appendix D section (5).
(e) This ordinance does not apply to:
(1) registered local, state or federal historical sites;
(2) ecological restoration projects that do not require a permanent irrigation system;
(3) mined -land reclamation projects that do not require a permanent irrigation system; or
(4) existing plant collections, as part of botanical gardens and arboretums open to the public.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 491. Definitions.
The terms used in this ordinance have the meaning set forth below:
(a) "applied water" means the portion of water supplied by the irrigation system to the landscape.
(b) "automatic irrigation controller" means a timing device used to remotely control valves that operate
an irrigation system. Automatic irrigation controllers are able to self -adjust and schedule irrigation
events using either evapotranspiration (weather -based) or soil moisture data.
(c) "backflow prevention device" means a safety device used to prevent pollution or contamination of
the water supply due to the reverse flow of water from the irrigation system.
(d) "Certificate of Completion" means the document required under Section 492.9.
2
(e) "certified irrigation designer" means a person certified to design irrigation systems by an accredited
academic institution, a professional trade organization or other program such as the US Environmental
Protection Agency's WaterSense irrigation designer certification program and Irrigation Association's
Certified Irrigation Designer program.
(f) "certified landscape irrigation auditor" means a person certified to perform landscape. irrigation
audits by an accredited academic institution, a professional trade organization or other program such as
the US Environmental Protection Agency's WaterSense irrigation auditor certification program and
Irrigation Association's Certified Landscape Irrigation Auditor program.
(g) "check valve" or "anti -drain valve" means a valve located under a sprinkler head, or other location in
the irrigation system, to hold water in the system to prevent drainage from sprinkler heads when the
sprinkler is off.
(h) "common interest developments" means community apartment projects, condominium projects,
planned developments, and stock cooperatives per Civil Code Section 1351.
(i) "compost" means the safe and stable product of controlled biologic decomposition of organic
materials that is beneficial to plant growth.
0) "conversion factor (0.62)" means the number that converts acre -inches per acre per year to gallons
per square foot per year.
(k) "distribution uniformity" means the measure of the uniformity of irrigation water over a defined
area.
(1) "drip irrigation" means any non -spray low volume irrigation system utilizing emission devices with a
flow rate measured in gallons per hour. Low volume irrigation systems are specifically designed to
apply small volumes of water slowly at or near the root zone of plants.
(m) "ecological restoration project" means a project where the site is intentionally altered to establish a
defined, indigenous, historic ecosystem.
(n) "effective precipitation" or "usable rainfall" (Eppt) means the portion of total precipitation which
becomes available for plant growth.
(o) "emitter" means a drip irrigation emission device that delivers water slowly from the system to the
soil.
(p) "established landscape" means the point at which plants in the landscape have developed significant
root growth into the soil. Typically, most plants are established after one or two years of growth.
(q) "establishment period of the plants" means the first year after installing the plant in the landscape or
the first two years if irrigation will be terminated after establishment. Typically, most plants are
established after one or two years of growth. Native habitat mitigation areas and trees may need three to
five years for establishment.
(r) "Estimated Total Water Use" (ETWU) means the total water used for the landscape as described in
Section 492.4.
(s) "ET adjustment factor" (ETAF) means a factor of 0.55 for residential areas and 0.45 for non-
residential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and
irrigation efficiency, two major influences upon the amount of water that needs to be applied to the
landscape. The ETAF for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed
1.0. The ETAF for existing non -rehabilitated landscapes is 0.8.
(t) "evapotranspiration rate" means the quantity of water evaporated from adjacent soil and other
surfaces and transpired by plants during a specified time.
(u) "flow rate" means the rate at which water flows through pipes, valves and emission devices,
measured in gallons per minute, gallons per hour, or cubic feet per second.
(v) "flow sensor" means an inline device installed at the supply point of the irrigation system that
produces a repeatable signal proportional to flow rate. Flow sensors must be connected to an automatic
irrigation controller, or flow monitor capable of receiving flow signals and operating master valves. This
combination flow sensor/controller may also function as a landscape water meter or submeter.
3
(w) "friable" means a soil condition that is easily crumbled or loosely compacted down to a minimum
depth per planting material requirements, whereby the root structure of newly planted material will be
allowed to spread unimpeded.
(x) "Fuel Modification Plan Guideline" means guidelines from a local fire authority to assist residents
and businesses that are developing land or building structures in a fire hazard severity zone.
(y) "graywater" means untreated wastewater that has not been contaminated by any toilet discharge, has
not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat
from contamination by unhealthful processing, manufacturing, or operating wastes. "Graywater"
includes, but is not limited to, wastewater from bathtubs, showers, bathroom washbasins, clothes
washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or
dishwashers. Health and Safety Code Section 17922.12.
(z) "hardscapes" means any durable material (pervious and non -pervious).
(aa) "hydrozone" means a portion of the landscaped area having plants with similar water needs and
rooting depth. A hydrozone may be irrigated or non -irrigated.
(bb) "infiltration rate" means the rate of water entry into the soil expressed as a depth of water per unit
of time (e.g., inches per hour).
(cc) "invasive plant species" means species of plants not historically found in California that spread
outside cultivated areas and can damage environmental or economic resources. Invasive species may be
regulated by county agricultural agencies as noxious species. Lists of invasive plants are maintained at
the California Invasive Plant Inventory and USDA invasive and noxious weeds database.
(dd) "irrigation audit" means an in-depth evaluation of the performance of an irrigation system conducted
by a Certified Landscape Irrigation Auditor. An irrigation audit includes, but is not limited to: inspection,
system tune-up, system test with distribution uniformity or emission uniformity, reporting overspray or
runoff that causes overland flow, and preparation of an irrigation schedule. The audit must be conducted
in a manner consistent with the Irrigation Association's Landscape Irrigation Auditor Certification
program or other U.S. Environmental Protection Agency "Watersense" labeled auditing program.
(ee) "irrigation efficiency" (IE) means the measurement of the amount of water beneficially used divided
by the amount of water applied. Irrigation efficiency is derived from measurements and estimates of
irrigation system characteristics and management practices. The irrigation efficiency for purposes of this
ordinance are 0.75 for overhead spray devices and 0.81 for drip systems.
(ff) "irrigation survey" means an evaluation of an irrigation system that is less detailed than an irrigation
audit. An irrigation survey includes, but is not limited to: inspection, system test, and written
recommendations to improve performance of the irrigation system.
(gg) "irrigation water use analysis" means an analysis of water use data based on meter readings and
billing data.
(hh) "landscape architect" means a person who holds a license to practice landscape architecture in the
state of California Business and Professions Code, Section 5615.
(ii) "landscape area" means all the planting areas, turf areas, and water features in a landscape design
plan subject to the Maximum Applied Water Allowance calculation. The landscape area does not
include footprints of buildings or structures, sidewalks, driveways, parking lots, decks, patios, gravel or
stone walks, other pervious or non -pervious hardscapes, and other non -irrigated areas designated for
non -development (e.g., open spaces and existing native vegetation).
Oj) "landscape contractor" means a person licensed by the state of California to construct, maintain,
repair, install, or subcontract the development of landscape systems.
(kk) "Landscape Documentation Package" means the documents required under Section 492.3.
(11) "landscape project" means total area of landscape in a project as defined in "landscape area" for the
purposes of this ordinance, meeting requirements under Section 490.1.
(mm) "landscape water meter" means an inline device installed at the irrigation supply point that
measures the flow of water into the irrigation system and is connected to a totalizer to record water use.
4
(nn) "lateral line" means the water delivery pipeline that supplies water to the emitters or sprinklers from
the valve.
(oo) "local agency" means a city or county, including a charter city or charter county, that is responsible
for adopting and implementing the ordinance. The local agency is also responsible for the enforcement
of this ordinance, including but not limited to, approval of a permit and plan check or design review of a
project.
(pp) "local water purveyor" means any entity, including a public agency, city, county, or private water
company that provides retail water service.
(qq) "low volume irrigation" means the application of irrigation water at low pressure through a system
of tubing or lateral lines and low -volume emitters such as drip, drip lines, and bubblers. Low volume
irrigation systems are specifically designed to apply small volumes of water slowly at or near the root
zone of plants.
(rr) "main line" means the pressurized pipeline that delivers water from the water source to the valve or
outlet.
(ss) "master shut-off valve" is an automatic valve installed at the irrigation supply point which controls
water flow into the irrigation system. When this valve is closed water will not be supplied to the
irrigation system. A master valve will greatly reduce any water loss due to a leaky station valve.
(tt) "Maximum Applied Water Allowance" (MAWA) means the upper limit of annual applied water for
the established landscaped area as specified in Section 492.4. It is based upon the area's reference
evapotranspiration, the ET Adjustment Factor, and the size of the landscape area. The Estimated Total
Water Use shall not exceed the Maximum Applied Water Allowance. Special Landscape Areas,
including recreation areas, areas permanently and solely dedicated to edible plants such as orchards and
vegetable gardens, and areas irrigated with recycled water are subject to the MAWA with an ETAF not
to exceed 1.0. MAWA = (ETo) (0.62) [(ETAF x LA) + ((I-ETAF)x SLA)]
(uu) "median" is an area between opposing lanes of traffic that may be unplanted or planted with trees,
shrubs, perennials, and ornamental grasses.
(vv)"microclimate" means the climate of a small, specific area that may contrast with the climate of the
overall landscape area due to factors such as wind, sun exposure, plant density, or proximity to reflective
surfaces.
(ww) "mined -land reclamation projects" means any surface mining operation with a reclamation plan
approved in accordance with the Surface Mining and Reclamation Act of 1975.
(xx) "mulch" means any organic material such as leaves, bark, straw, compost, or inorganic mineral
materials such as rocks, gravel, or decomposed granite left loose and applied to the soil surface for the
beneficial purposes of reducing evaporation, suppressing weeds, moderating soil temperature, and
preventing soil erosion.
(yy) "new construction" means, for the purposes of this ordinance, a new building with a landscape or
other new landscape, such as a park, playground, or greenbelt without an associated building.
(zz) "non-residential landscape" means landscapes in commercial, institutional, industrial and public
settings that may have areas designated for recreation or public assembly. It also includes portions of
common areas of common interest developments with designated recreational areas.
(aaa) "operating pressure" means the pressure at which the parts of an irrigation system are designed by
the manufacturer to operate.
(bbb) "overhead sprinkler irrigation systems" or "overhead spray irrigation systems" means systems that
deliver water through the air (e.g., spray heads and rotors).
(ccc) "overspray" means the irrigation water which is delivered beyond the target area.
(ddd)"parkway" means the area between a sidewalk and the curb or traffic lane. It may be planted or
unplanted, and with or without pedestrian egress.
(eee) "permit" means an authorizing document issued by local agencies for new construction or
rehabilitated landscapes.
y
(fff) "pervious" means any surface or material that allows the passage of water through the material and
into the underlying soil.
(ggg) "plant factor" or "plant water use factor" is a factor, when multiplied by ETo, estimates the
amount of water needed by plants. For purposes of this ordinance, the plant factor range for very low
water use plants is 0 to 0.1, the plant factor range for low water use plants is 0.1 to 0.3, the plant factor
range for moderate water use plants is 0.4 to 0.6, and the plant factor range for high water use plants is
0.7 to 1.0. Plant factors cited in this ordinance are derived from the publication "Water Use
Classification of Landscape Species". Plant factors may also be obtained from horticultural researchers
from academic institutions or professional associations as approved by the California Department of
Water Resources (DWR).
(hhh) "project applicant" means the individual or entity submitting a Landscape Documentation
Package required under Section 492.3, to request a permit, plan check, or design review from the local
agency. A project applicant may be the property owner or his or her designee.
(iii) "rain sensor" or "rain sensing shutoff device" means a component which automatically suspends an
irrigation event when it rains.
6J) "record drawing" or "as-builts" means a set of reproducible drawings which show significant
changes in the work made during construction and which are usually based on drawings marked up in
the field and other data furnished by the contractor.
(kkk) "recreational area" means areas, excluding private single family residential areas, designated for
active play, recreation or public assembly in parks, sports fields, picnic grounds, amphitheaters or golf
course tees, fairways, roughs, surrounds and greens.
(111) "recycled water," "reclaimed water," or "treated sewage effluent water" means treated or recycled
waste water of a quality suitable for nonpotable uses such as landscape irrigation and water features.
This water is not intended for human consumption.
(mmm) "reference evapotranspiration" or "ETo" means a standard measurement of environmental
parameters which affect the water use of plants. ETo is expressed in inches per day, month, or year as
represented in Appendix A, and is an estimate of the evapotranspiration of a large field of four- to
seven-inch tall, cool -season grass that is well watered. Reference evapotranspiration is used as the basis
of determining the Maximum Applied Water Allowances so that regional differences in climate can be
accommodated.
(nnn) "Regional Water Efficient Landscape Ordinance" means a local Ordinance adopted by two or
more local agencies, water suppliers and other stakeholders for implementing a consistent set of
landscape provisions throughout a geographical region. Regional ordinances are strongly encouraged to
provide a consistent framework for the landscape industry and applicants to adhere to.
(000) "rehabilitated landscape" means any relandscaping project that requires a permit, plan check, or
design review, meets the requirements of Section 490.1, and the modified landscape area is equal to or
greater than 2,500 square feet.
(ppp) "residential landscape" means landscapes surrounding single or multifamily homes.
(qqq) "run off' means water which is not absorbed by the soil or landscape to which it is applied and
flows from the landscape area. For example, run off may result from water that is applied at too great a
rate (application rate exceeds infiltration rate) or when there is a slope.
(rrr) "soil moisture sensing device" or "soil moisture sensor" means a device that measures the amount
of water in the soil. The device may also suspend or initiate an irrigation event.
(sss) "soil texture" means the classification of soil based on its percentage of sand, silt, and clay.
(ttt) "Special Landscape Area" (SLA) means an area of the landscape dedicated solely to edible plants,
recreational areas, areas irrigated with recycled water, or water features using recycled water.
(uuu) "sprinkler head" or "spray head" means a device which delivers water through a nozzle.
(vvv) "static water pressure" means the pipeline or municipal water supply pressure when water is not
flowing.
(www) "station" means an area served by one valve or by a set of valves that operate simultaneously.
0
(xxx) "swing joint" means an irrigation component that provides a flexible, leak -free connection
between the emission device and lateral pipeline to allow movement in any direction and to prevent
equipment damage.
(yyy) "submeter" means a metering device to measure water applied to the landscape that is installed
after the primary utility water meter.
(zzz) "turf' means a ground cover surface of mowed grass. Annual bluegrass, Kentucky bluegrass,
Perennial ryegrass, Red fescue, and Tall fescue are cool -season grasses. Bermudagrass, Kikuyugrass,
Seashore Paspalum, St. Augustinegrass, Zoysiagrass, and Buffalo grass are warm -season grasses.
(aaaa) "valve" means a device used to control the flow of water in the irrigation system.
(bbbb) "water conserving plant species" means a plant species identified as having a very low or low
plant factor.
(cccc) "water feature" means a design element where open water performs an aesthetic or recreational
function. Water features include ponds, lakes, waterfalls, fountains, artificial streams, spas, and
swimming pools (where water is artificially supplied). The surface area of water features is included in
the high water use hydrozone of the landscape area. Constructed wetlands used for on -site wastewater
treatment or stormwater best management practices that are not irrigated and used solely for water
treatment or stormwater retention are not water features and, therefore, are not subject to the water
budget calculation.
(dddd) "watering window" means the time of day irrigation is allowed.
(eeee) "WUCOLS" means the Water Use Classification of Landscape Species published by the
University of California Cooperative Extension and the Department of Water Resources.
Note: Authority cited: Section 65595, Government Code. Reference: Sections 65592 and 65596,
Government Code.
§ 492. Provisions for New Construction or Rehabilitated Landscapes.
(a) A local agency may designate by mutual agreement, another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.4. Water Efficient Landscape Worksheet.
(a) A project applicant shall complete the Water Efficient Landscape Worksheet in Appendix B which
contains information on the plant factor, irrigation method, irrigation efficiency, and area associated
with each hydrozone. Calculations are then made to show that the evapotranspiration adjustment factor
(ETAF) for the landscape project does not exceed a factor of 0.55 for residential areas and 0.45 for non-
residential areas, exclusive of Special Landscape Areas. The ETAF for a landscape project is based on
the plant factors and irrigation methods selected. The Maximum Applied Water Allowance is calculated
based on the maximum ETAF allowed (0.55 for residential areas and 0.45 for non-residential areas) and
expressed as annual gallons required. The Estimated Total Water Use (ETWU) is calculated based on
the plants used and irrigation method selected for the landscape design. ETWU must be below the
MAWA.
(1) In calculating the Maximum Applied Water Allowance and Estimated Total Water Use, a project
applicant shall use the ETo values from the Reference Evapotranspiration Table in Appendix A. For
geographic areas not covered in Appendix A, use data from other cities located nearby in the same
reference evapotranspiration zone, as found in the CIMIS Reference Evapotranspiration Zones Map,
Department of Water Resources, 1999.
(b) Water budget calculations shall adhere to the following requirements:
7
(1) The plant factor used shall be from WUCOLS or from horticultural researchers with academic
institutions or professional associations as approved by the California Department of Water
Resources (DWR). The plant factor ranges from 0 to 0.1 for very low water using plants, 0.1 to 0.3
for low water use plants, from 0.4 to 0.6 for moderate water use plants, and from 0.7 to 1.0 for high
water use plants.
(2) All water features shall be included in the high water use hydrozone and temporarily irrigated
areas shall be included in the low water use hydrozone.
(3) All Special Landscape Areas shall be identified and their water use calculated as shown in
Appendix B.
(4) ETAF for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.5. Soil Management Report.
(a) In order to reduce runoff and encourage healthy plant growth, a soil management report shall be
completed by the project applicant, or his/her designee, as follows:
(1) Submit soil samples to a laboratory for analysis and recommendations.
(A) Soil sampling shall be conducted in accordance with laboratory protocol, including protocols
regarding adequate sampling depth for the intended plants.
(B) The soil analysis shall include:
1. soil texture;
2. infiltration rate determined by laboratory test or soil texture infiltration rate table;
3. pH;
4. total soluble salts;
5. sodium;
6. percent organic matter; and
7. recommendations.
(C) In projects with multiple landscape installations (i.e. production home developments) a soil
sampling rate of 1 in 7 lots or approximately 15% will satisfy this requirement. Large landscape projects
shall sample at a rate equivalent to 1 in 7 lots.
(2) The project applicant, or his/her designee, shall comply with one of the following:
(A) If significant mass grading is not planned, the soil analysis report shall be submitted to the local
agency as part of the Landscape Documentation Package; or
(B) If significant mass grading is planned, the soil analysis report shall be submitted to the local agency as
part of the Certificate of Completion.
(3) The soil analysis report shall be made available, in a timely manner, to the professionals
preparing the landscape design plans and irrigation design plans to make any necessary adjustments
to the design plans.
(4) The project applicant, or his/her designee, shall submit documentation verifying implementation
of soil analysis report recommendations to the local agency with Certificate of Completion.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.6. Landscape Design Plan.
(a) For the efficient use of water, a landscape shall be carefully designed and planned for the intended
function of the project. A landscape design plan meeting the following design criteria shall be submitted
as part of the Landscape Documentation Package.
(1) Plant Material
(A) Any plant may be selected for the landscape, providing the Estimated Total Water Use in the
landscape area does not exceed the Maximum Applied Water Allowance. Methods to achieve water
efficiency shall include one or more of the following:
N
1. protection and preservation of native species and natural vegetation;
2. selection of water -conserving plant, tree and turf species, especially local native plants;
3. selection of plants based on local climate suitability, disease and pest resistance;
4. selection of trees based on applicable local tree ordinances or tree shading guidelines, and
size at maturity as appropriate for the planting area; and
5. selection of plants from local and regional landscape program plant lists.
6. selection of plants from local Fuel Modification Plan Guidelines.
(B) Each hydrozone shall have plant materials with similar water use, with the exception of hydrozones
with plants of mixed water use, as specified in Section 492.7(a)(2)(D).
(C) Plants shall be selected and planted appropriately based upon their adaptability to the climatic,
geologic, and topographical conditions of the project site. Methods to achieve water efficiency shall
include one or more of the following:
1. use the Sunset Western Climate Zone System which takes into account temperature,
humidity, elevation, terrain, latitude, and varying degrees of continental and marine influence
on local climate;
2. recognize the horticultural attributes of plants (i.e., mature plant size, invasive surface
roots) to minimize damage to property or infrastructure [e.g., buildings, sidewalks, power
lines]; allow for adequate soil volume for healthy root growth; and
3. consider the solar orientation for plant placement to maximize summer shade and winter
solar gain.
(D) Turf is not allowed on slopes greater than 25% where the toe of the slope is adjacent to an
impermeable hardscape and where 25% means 1 foot of vertical elevation change for every 4 feet of
horizontal length (rise divided by run x 100 = slope percent).
(E) High water use plants, characterized by a plant factor of 0.7 to 1.0, are prohibited in street medians.
(F) A landscape design plan for projects in fire -prone areas shall address fire safety and prevention. A
defensible space or zone around a building or structure is required per Public Resources Code Section
4291(a) and (b). Avoid fire -prone plant materials and highly flammable mulches. Refer to the local Fuel
Modification Plan guidelines.
(G) The use of invasive plant species, such as those listed by the California Invasive Plant Council, is
strongly discouraged.
(H) The architectural guidelines of a common interest development, which include community apartment
projects, condominiums, planned developments, and stock cooperatives, shall not prohibit or include
conditions that have the effect of prohibiting the use of low-water use plants as a group.
(2) Water Features
(A) Recirculating water systems shall be used for water features.
(B) Where available, recycled water shall be used as a source for decorative water features.
(C) Surface area of a water feature shall be included in the high water use hydrozone area of the water
budget calculation.
(D) Pool and spa covers are highly recommended.
(3) Soil Preparation, Mulch and Amendments
(A) Prior to the planting of any materials, compacted soils shall be transformed to a friable condition. On
engineered slopes, only amended planting holes need meet this requirement.
(B) Soil amendments shall be incorporated according to recommendations of the soil report and what is
appropriate for the plants selected (see Section 492.5).
(C) For landscape installations, compost at a rate of a minimum of four cubic yards per 1,000 square feet
of permeable area shall be incorporated to a depth of six inches into the soil. Soils with greater than 6%
organic matter in the top 6 inches of soil are exempt from adding compost and tilling.
(D) A minimum three inch (3 ") layer of mulch shall be applied on all exposed soil surfaces of planting
areas except in turf areas, creeping or rooting groundcovers, or direct seeding applications where mulch is
contraindicated. To provide habitat for beneficial insects and other wildlife, up to 5 % of the landscape
area may be left without mulch. Designated insect habitat must be included in the landscape design plan
as such.
(E) Stabilizing mulching products shall be used on slopes that meet current engineering standards.
0
(F) The mulching portion of the seed/mulch slurry in hydro -seeded applications shall meet the mulching
requirement.
(G) Organic mulch materials made from recycled or post -consumer shall take precedence over inorganic
materials or virgin forest products unless the recycled post -consumer organic products are not locally
available. Organic mulches are not required where prohibited by local Fuel Modification Plan Guidelines
or other applicable local ordinances.
(b) The landscape design plan, at a minimum, shall:
(1) delineate and label each hydrozone by number, letter, or other method;
(2) identify each hydrozone as low, moderate, high water, or mixed water use. Temporarily irrigated
areas of the landscape shall be included in the low water use hydrozone for the water budget
calculation;
(3) identify recreational areas;
(4) identify areas permanently and solely dedicated to edible plants;
(5) identify areas irrigated with recycled water;
(6) identify type of mulch and application depth;
(7) identify soil amendments, type, and quantity;
(8) identify type and surface area of water features;
(9) identify hardscapes (pervious and non -pervious);
(10) identify location, installation details, and 24-hour retention or infiltration capacity of any
applicable stormwater best management practices that encourage on -site retention and infiltration of
stormwater. Project applicants shall refer to the local agency or regional Water Quality Control
Board for information on any applicable stormwater technical requirements. Stormwater best
management practices are encouraged in the landscape design plan and examples are provided in
Section 492.16.
(11) identify any applicable rain harvesting or catchment technologies discussed in Section 492.16
and their 24-hour retention or infiltration capacity;
(12) identify any applicable graywater discharge piping, system components and area(s) of
distribution;
(13) contain the following statement: "I have complied with the criteria of the ordinance and applied
them for the efficient use of water in the landscape design plan"; and
(14) bear the signature of a licensed landscape architect, licensed landscape contractor, or any other
person authorized to design a landscape. (See Sections 5500.1, 5615, 5641, 5641.1, 5641.2, 5641.3,
5641.4, 5641.5, 5641.6, 6701, 7027.5 of the Business and Professions Code, Section 832.27 of Title
16 of the California Code of Regulations, and Section 6721 of the Food and Agriculture Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code;
and Section 1351, Civil Code.
§ 492.7. Irrigation Design Plan.
(a) This section applies to landscaped areas requiring permanent irrigation, not areas that require
temporary irrigation solely for the plant establishment period. For the efficient use of water, an irrigation
system shall meet all the requirements listed in this section and the manufacturers' recommendations.
The irrigation system and its related components shall be planned and designed to allow for proper
installation, management, and maintenance. An irrigation design plan meeting the following design
criteria shall be submitted as part of the Landscape Documentation Package.
(1) System
(A) Landscape water meters, defined as either a dedicated water service meter or private submeter, shall
be installed for all non-residential irrigated landscapes of 1,000 sq. ft. but not more than 5,000 sq.ft. (the
level at which Water Code 535 applies) and residential irrigated landscapes of 5,000 sq. ft. or greater. A
landscape water meter may be either:
10
1. a customer service meter dedicated to landscape use provided by the local water
purveyor; or
2. a privately owned meter or submeter.
(B) Automatic irrigation controllers utilizing either evapotranspiration or soil moisture sensor data
utilizing non-volatile memory shall be required for irrigation scheduling in all irrigation systems.
(C) If the water pressure is below or exceeds the recommended pressure of the specified irrigation
devices, the installation of a pressure regulating device is required to ensure that the dynamic pressure at
each emission device is within the manufacturer's recommended pressure range for optimal performance.
1. If the static pressure is above or below the required dynamic pressure of the irrigation
system, pressure -regulating devices such as inline pressure regulators, booster pumps, or
other devices shall be installed to meet the required dynamic pressure of the irrigation
system.
2. Static water pressure, dynamic or operating pressure, and flow reading of the water supply
shall be measured at the point of connection. These pressure and flow measurements shall be
conducted at the design stage. If the measurements are not available at the design stage, the
measurements shall be conducted at installation.
(D) Sensors (rain, freeze, wind, etc.), either integral or auxiliary, that suspend or alter irrigation operation
during unfavorable weather conditions shall be required on all irrigation systems, as appropriate for local
climatic conditions. Irrigation should be avoided during windy or freezing weather or during rain.
(E) Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) shall be required, as close
as possible to the point of connection of the water supply, to minimize water loss in case of an emergency
(such as a main line break) or routine repair.
(F) Backflow prevention devices shall be required to protect the water supply from contamination by the
irrigation system. A project applicant shall refer to the applicable local agency code (i.e., public health)
for additional backflow prevention requirements.
(G) Flow sensors that detect high flow conditions created by system damage or malfunction are required
for all on non-residential landscapes and residential landscapes of 5000 sq. ft. or larger.
(H) Master shut-off valves are required on all projects except landscapes that make use of technologies
that allow for the individual control of sprinklers that are individually pressurized in a system equipped
with low pressure shut down features.
(I) The irrigation system shall be designed to prevent runoff, low head drainage, overspray, or other
similar conditions where irrigation water flows onto non -targeted areas, such as adjacent property, non -
irrigated areas, hardscapes, roadways, or structures.
(J) Relevant information from the soil management plan, such as soil type and infiltration rate, shall be
utilized when designing irrigation systems.
(K) The design of the irrigation system shall conform to the hydrozones of the landscape design plan.
(L) The irrigation system must be designed and installed to meet, at a minimum, the irrigation efficiency
criteria as described in Section 492.4 regarding the Maximum Applied Water Allowance.
(M) All irrigation emission devices must meet the requirements set in the American National Standards
Institute (ANSI) standard, American Society of Agricultural and Biological Engineers'/International Code
Council's (ASABE/ICC) 802-2014 "Landscape Irrigation Sprinkler and Emitter Standard, All sprinkler
heads installed in the landscape must document a distribution uniformity low quarter of 0.65 or higher
using the protocol defined in ASABE/ICC 802-2014.
(N) It is highly recommended that the project applicant or local agency inquire with the local water
purveyor about peak water operating demands (on the water supply system) or water restrictions that may
impact the effectiveness of the irrigation system.
(0) In mulched planting areas, the use of low volume irrigation is required to maximize water infiltration
into the root zone.
(P) Sprinkler heads and other emission devices shall have matched precipitation rates, unless otherwise
directed by the manufacturer's recommendations.
(Q) Head to head coverage is recommended. However, sprinkler spacing shall be designed to achieve the
highest possible distribution uniformity using the manufacturer's recommendations.
11
(R) Swing joints or other riser -protection components are required on all risers subject to damage that are
adjacent to hardscapes or in high traffic areas of turfgrass.
(S) Check valves or anti -drain valves are required on all sprinkler heads where low point drainage could
occur.
(T) Areas less than ten (10) feet in width in any direction shall be irrigated with subsurface irrigation or
other means that produces no runoff or overspray.
(U) Overhead irrigation shall not be permitted within 24 inches of any non -permeable surface. Allowable
irrigation within the setback from non -permeable surfaces may include drip, drip line, or other low flow
non -spray technology. The setback area may be planted or unplanted. The surfacing of the setback may be
mulch, gravel, or other porous material. These restrictions may be modified if:
1. the landscape area is adjacent to permeable surfacing and no runoff occurs; or
2. the adjacent non -permeable surfaces are designed and constructed to drain entirely to
landscaping; or
3. the irrigation designer specifies an alternative design or technology, as part of the
Landscape Documentation Package and clearly demonstrates strict adherence to irrigation
system design criteria in Section 492.7 (a)(1)(I). Prevention of overspray and runoff must be
confirmed during the irrigation audit.
(V) Slopes greater than 25% shall not be irrigated with an irrigation system with an application rate
exceeding 0.75 inches per hour. This restriction may be modified if the landscape designer specifies an
alternative design or technology, as part of the Landscape Documentation Package, and clearly
demonstrates no runoff or erosion will occur. Prevention of runoff and erosion must be confirmed during
the irrigation audit.
(2) Hydrozone
(A) Each valve shall irrigate a hydrozone with similar site, slope, sun exposure, soil conditions, and plant
materials with similar water use.
(B) Sprinkler heads and other emission devices shall be selected based on what is appropriate for the plant
type within that hydrozone.
(C) Where feasible, trees shall be placed on separate valves from shrubs, groundcovers, and turf to
facilitate the appropriate irrigation of trees. The mature size and extent of the root zone shall be
considered when designing irrigation for the tree.
(D) Individual hydrozones that mix plants of moderate and low water use, or moderate and high water
use, may be allowed if:
1. plant factor calculation is based on the proportions of the respective plant water uses and
their plant factor; or
2. the plant factor of the higher water using plant is used for calculations.
(E) Individual hydrozones that mix high and low water use plants shall not be permitted.
(F) On the landscape design plan and irrigation design plan, hydrozone areas shall be designated by
number, letter, or other designation. On the irrigation design plan, designate the areas irrigated by each
valve, and assign a number to each valve. Use this valve number in the Hydrozone Information Table (see
Appendix B Section A). This table can also assist with the irrigation audit and programming the
controller.
(b) The irrigation design plan, at a minimum, shall contain:
(1) location and size of separate water meters for landscape;
(2) location, type and size of all components of the irrigation system, including controllers, main and
lateral lines, valves, sprinkler heads, moisture sensing devices, rain switches, quick couplers,
pressure regulators, and backflow prevention devices;
(3) static water pressure at the point of connection to the public water supply;
(4) flow rate (gallons per minute), application rate (inches per hour), and design operating pressure
(pressure per square inch) for each station;
(5) recycled water irrigation systems as specified in Section 492.14;
(6) the following statement: "I have complied with the criteria of the ordinance and applied them
accordingly for the efficient use of water in the irrigation design plan"; and
12
(7) the signature of a licensed landscape architect, certified irrigation designer, licensed landscape
contractor, or any other person authorized to design an irrigation system. (See Sections 5500.1,
5615, 5641, 5641.1, 5641.2, 5641.3, 5641.4, 5641.5, 5641.6, 6701, 7027.5 of the Business and
Professions Code, Section 832.27 of Title 16 of the California Code of Regulations, and Section
6721 of the Food and Agricultural Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.9. Certificate of Completion.
(a) The Certificate of Completion (see Appendix C for a sample certificate) shall include the following
six (6) elements:
(1) project information sheet that contains:
(A) date;
(B) project name;
(C) project applicant name, telephone, and mailing address;
(D) project address and location; and
(E) property owner name, telephone, and mailing address;
(2) certification by either the signer of the landscape design plan, the signer of the irrigation design
plan, or the licensed landscape contractor that the landscape project has been installed per the
approved Landscape Documentation Package;
(A) where there have been significant changes made in the field during construction, these "as -built" or
record drawings shall be included with the certification;
(B) A diagram of the irrigation plan showing hydrozones shall be kept with the irrigation controller for
subsequent management purposes.
(3) irrigation scheduling parameters used to set the controller (see Section 492.10);
(4) landscape and irrigation maintenance schedule (see Section 492.11);
(5) irrigation audit report (see Section 492.12); and
(6) soil analysis report, if not submitted with Landscape Documentation Package, and documentation
verifying implementation of soil report recommendations (see Section 492.5).
(b) The project applicant shall:
(1) submit the signed Certificate of Completion to the local agency for review;
(2) ensure that copies of the approved Certificate of Completion are submitted to the local water
purveyor and property owner or his or her designee.
(c) The local agency shall:
(1) receive the signed Certificate of Completion from the project applicant;
(2) approve or deny the Certificate of Completion. If the Certificate of Completion is denied, the
local agency shall provide information to the project applicant regarding reapplication, appeal, or
other assistance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.11. Landscape and Irrigation Maintenance Schedule.
(a) Landscapes shall be maintained to ensure water use efficiency. A regular maintenance schedule shall
be submitted with the Certificate of Completion.
(b) A regular maintenance schedule shall include, but not be limited to, routine inspection; auditing,
adjustment and repair of the irrigation system and its components; aerating and dethatching turf areas;
topdressing with compost, replenishing mulch; fertilizing; pruning; weeding in all landscape areas, and
removing obstructions to emission devices. Operation of the irrigation system outside the normal
watering window is allowed for auditing and system maintenance.
13
(c) Repair of all irrigation equipment shall be done with the originally installed components or their
equivalents or with components with greater efficiency.
(d) A project applicant is encouraged to implement established landscape industry sustainable Best
Practices for all landscape maintenance activities.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.12. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
(a) All landscape irrigation audits shall be conducted by a local agency landscape irrigation auditor or a
third party certified landscape irrigation auditor. Landscape audits shall not be conducted by the person
who designed the landscape or installed the landscape.
(b) In large projects or projects with multiple landscape installations (i.e. production home
developments) an auditing rate of 1 in 7 lots or approximately 15% will satisfy this requirement.
(c) For new construction and rehabilitated landscape projects installed after December 1, 2015, as
described in Section 490.1:
(1) the project applicant shall submit an irrigation audit report with the Certificate of Completion to
the local agency that may include, but is not limited to: inspection, system tune-up, system test with
distribution uniformity, reporting overspray or run off that causes overland flow, and preparation of
an irrigation schedule, including configuring irrigation controllers with application rate, soil types,
plant factors, slope, exposure and any other factors necessary for accurate programming;
(2) the local agency shall administer programs that may include, but not be limited to, irrigation
water use analysis, irrigation audits, and irrigation surveys for compliance with the Maximum
Applied Water Allowance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.13. Irrigation Efficiency.
(a) For the purpose of determining Estimated Total Water Use, average irrigation efficiency is assumed
to be 0.75 for overhead spray devices and 0.81 for drip system devices.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.14. Recycled Water.
(a) The installation of recycled water irrigation systems shall allow for the current and future use of
recycled water.
(b) All recycled water irrigation systems shall be designed and operated in accordance with all
applicable local and State laws.
(c) Landscapes using recycled water are considered Special Landscape Areas. The ET Adjustment
Factor for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.15. Graywater Systems.
(a) Graywater systems promote the efficient use of water and are encouraged to assist in on -site
landscape irrigation. All graywater systems shall conform to the California Plumbing Code (Title 24,
Part 5, Chapter 16) and any applicable local ordinance standards. Refer to § 490.1 (d) for the
applicability of this ordinance to landscape areas less than 2,500 square feet with the Estimated Total
Water Use met entirely by graywater.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
14
§ 492.16. Stormwater Management and Rainwater Retention.
(a) Stormwater management practices minimize runoff and increase infiltration which recharges
groundwater and improves water quality. Implementing stormwater best management practices into the
landscape and grading design plans to minimize runoff and to increase on -site rainwater retention and
infiltration are encouraged.
(b) Project applicants shall refer to the local agency or Regional Water Quality Control Board for
information on any applicable stormwater technical requirements
(c) All planted landscape areas are required to have friable soil to maximize water retention and
infiltration. Refer to § 492.6(a)(3).
(d) It is strongly recommended that landscape areas be designed for capture and infiltration capacity that
is sufficient to prevent runoff from impervious surfaces (i.e. roof and paved areas) from either: the one
inch, 24-hour rain event or (2) the 85th percentile, 24-hour rain event, and/or additional capacity as
required by any applicable local, regional, state or federal regulation.
(e) It is recommended that storm water projects incorporate any of the following elements to improve
on -site storm water and dry weather runoff capture and use:
(1) Grade impervious surfaces, such as driveways, during construction to drain to vegetated areas.
(2) Minimize the area of impervious surfaces such as paved areas, roof and concrete driveways.
Incorporate pervious or porous surfaces (e.g., gravel, permeable pavers or blocks, pervious or porous
concrete) that minimize runoff.
(3) Direct runoff from paved surfaces and roof areas into planting beds or landscaped areas to
maximize site water capture and reuse.
(4) Incorporate rain gardens, cisterns, and other rain harvesting or catchment systems.
Incorporate infiltration beds, swales, basins and drywells to capture storm water and dry weather
runoff and increase percolation into the soil.
(5) Consider constructed wetlands and ponds that retain water, equalize excess flow, and filter
pollutants.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.17. Public Education.
(a) Publications. Education is a critical component to promote the efficient use of water in landscapes.
The use of appropriate principles of design, installation, management and maintenance that save water is
encouraged in the community.
(1) A local agency or water supplier/purveyor shall provide information to owners of permitted
renovations and new, single-family residential homes regarding the design, installation,
management, and maintenance of water efficient landscapes based on a water budget.
(b) Model Homes. All model homes that are landscaped shall use signs and written information to
demonstrate the principles of water efficient landscapes described in this ordinance.
(1) Signs shall be used to identify the model as an example of a water efficient landscape featuring
elements such as hydrozones, irrigation equipment, and others that contribute to the overall water
efficient theme. Signage shall include information about the site water use as designed per the local
ordinance; specify who designed and installed the water efficient landscape; and demonstrate low
water use approaches to landscaping such as using native plants, graywater systems, and rainwater
catchment systems.
(2) Information shall be provided about designing, installing, managing, and maintaining water
efficient landscapes.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
15
§ 492.18. Environmental Review.
(a) The local agency must comply with the California Environmental Quality Act (CEQA), as
appropriate.
Note: Authority cited: Section 21082, Public Resources Code. Reference: Sections 21080 and 21082,
Public Resources Code.
§ 493. Provisions for Existing Landscapes.
(a) A local agency may by mutual agreement, designate another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 493.1. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
(a) This section, 493.1, shall apply to all existing landscapes that were installed before December 1, 2015
and are over one acre in size.
(1) For all landscapes in 493.1(a) that have a water meter, the local agency shall administer programs
that may include, but not be limited to, irrigation water use analyses, irrigation surveys, and
irrigation audits to evaluate water use and provide recommendations as necessary to reduce
landscape water use to a level that does not exceed the Maximum Applied Water Allowance for
existing landscapes. The Maximum Applied Water Allowance for existing landscapes shall be
calculated as: MAWA = (0.8) (ETo)(LA)(0.62).
(2) For all landscapes in 493.1(a), that do not have a meter, the local agency shall administer
programs that may include, but not be limited to, irrigation surveys and irrigation audits to evaluate
water use and provide recommendations as necessary in order to prevent water waste.
(b) All landscape irrigation audits shall be conducted by a certified landscape irrigation auditor.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 494. Effective Precipitation.
(a) A local agency may consider Effective Precipitation (25% of annual precipitation) in tracking water
use and may use the following equation to calculate Maximum Applied Water Allowance:
MAWA= (ETo - Eppt) (0.62) [(0.55 x LA) + (0.45 x SLA)] for residential areas.
MAWA= (ETo-EPPT) (0.62) [(0.45 x LA) + (0.55 x SLA)] for non-residential areas.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 495. Reporting.
(a) Local agencies shall report on implementation and enforcement by December 31, 2015. Local
agencies responsible for administering individual ordinances shall report on their updated ordinance,
while those agencies developing a regional ordinance shall report on their existing ordinance. Those
agencies crafting a regional ordinances shall also report on their new ordinance by March 1, 2016.
Subsequently, reporting for all agencies will be due by January 31 St of each year. Reports shall be
submitted to the Department of Water Resources.
(b) Local agencies are to address the following:
(1) State whether you are adopting a single agency ordinance or a regional agency alliance
ordinance, and the date of adoption or anticipated date of adoption.
16
(2) Define the reporting period. The reporting period shall commence on December 1, 2015 and the
end on December 28, 2015. For local agencies crafting regional ordinances with other agencies,
there shall be an additional reporting period commencing on February 1, 2016 and ending on
February 28, 2016. In subsequent years, all local agency reporting will be for the calendar year.
(3) State if using a locally modified Water Efficient Landscape Ordinance (WELO) or the MWELO.
If using a locally modified WELO, how is it different than MWELO, is it at least as efficient as
MWELO, and are there any exemptions specified?
(4) State the entity responsible for implementing the ordinance.
(5) State number and types of projects subject to the ordinance during the specified reporting period.
(6) State the total area (in square feet or acres) subject to the ordinance over the reporting period, if
available.
(7) Provide the number of new housing starts, new commercial projects, and landscape retrofits
during the reporting period.
(8) Describe the procedure for review of projects subject to the ordinance.
(9) Describe actions taken to verify compliance. Is a plan check performed; if so, by what entity? Is
a site inspection performed; if so, by what entity? Is a post -installation audit required; if so, by
whom?
(10) Describe enforcement measures.
(11) Explain challenges to implementing and enforcing the ordinance.
(12) Describe educational and other needs to properly apply the ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
17
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
ALAMEDA
Fremont
1.5
1.9
3.4
4.7
5.4
6.3
6.7
6.0
4.5
3.4
1.8
1.5
47.0
Livermore
1.2
1.5
2.9
4.4
5.9
6.6
7.4
6.4
5.3
3.2
1.5
0.9
47.2
Oakland
1.5
1.5
2.8
3.9
5.1
5.3
6.0
5.5
4.8
3.1
1.4
0.9
41.8
Oakland Foothills
1.1
1.4
2.7
3.7
5.1
6.4
5.8
4.9
3.6
2.6
1.4
1.0
39.6
Pleasanton
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
Union City
1.4
1.8
3.1
4.2
5.4
5.9
6.4
5.7
4.4
3.1
1.5
1.2
44.2
ALPINE
Markleeville
0.7
0.9
2.0
3.5
5.0
6.1
7.3
6.4
4.4
2.6
1.2
0.5
40.6
AMADOR
Jackson
1.2
1.5
2.8
4.4
6.0
7.2
7.9
7.2
5.3
3.2
1.4
0.9
48.9
Shanandoah Valley
1.0
1.7
2.9
4.4
5.6
6.8
7.9
7.1
5.2
3.6
1.7
1.0
48.8
BUTTE
Chico
1.2
1.8
2.9
4.7
6.1
7.4
8.5
7.3
5.4
3.7
1.7
1.0
51.7
Durham
1.1
1.8
3.2
5.0
6.5
7.4
7.8
6.9
5.3
3.6
1.7
1.0
51.1
Gridley
1.2
1.8
3.0
4.7
6.1
7.7
8.5
7.1
5.4
3.7
1.7
1.0
51.9
Oroville
1.2
1.7
2.8
4.7
6.1
7.6
8.5
7.3
5.3
3.7
1.7
1.0
51.5
CALAVERAS
San Andreas
1.2
1.5
2.8
4.4
6.0
7.3
7.9
7.0
5.3
3.2
1.4
0.7
48.8
COLUSA
Colusa
1.0
1.7
3.4
5.0
6.4
7.6
8.3
7.2
5.4
3.8
1.8
1.1
52.8
Williams
1.2
1.7
2.9
4.5
6.1
7.2
8.5
7.3
5.3
3.4
1.6
1.0
50.8
CONTRA COSTA
Brentwood
1.0
1.5
2.9
4.5
6.1
7.1
7.9
6.7
5.2
3.2
1.4
0.7
48.3
Concord
1.1
1.4
2.4
4.0
5.5
5.9
7.0
6.0
4.8
3.2
1.3
0.7
43.4
Courtland
0.9
1.5
2.9
4.4
6.1
6.9
7.9
6.7
5.3
3.2
1.4
0.7
48.0
Martinez
1.2
1.4
2.4
3.9
5.3
5.6
6.7
5.6
4.7
3.1
1.2
0.7
41.8
Moraga
1.2
1.5
3.4
4.2
5.5
6.1
6.7
5.9
4.6
3.2
1.6
1.0
44.9
Pittsburg
1.0
1.5
2.8
4.1
5.6
6.4
7.4
6.4
5.0
3.2
1.3
0.7
45.4
Walnut Creek
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
DEL NORTE
Crescent City
0.5
0.9
2.0
3.0
3.7
3.5
4.3
3.7
3.0
2.0
0.9
0.5
27.7
EL DORADO
Camino
0.9
1.7
2.5
3.9
5.9
7.2
7.8
6.8
5.1
3.1
1.5
0.9
47.3
FRESNO
Clovis
1.0
1.5
3.2
4.8
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Coalinga
1.2
1.7
3.1
4.6
6.2
7.2
8.5
7.3
5.3
3.4
1.6
0.7
50.9
Firebaugh
1.0
1.8
3.7
5.7
7.3
8.1
8.2
7.2
5.5
3.9
2.0
1.1
55.4
FivePoints
1.3
2.0
4.0
6.1
7.7
8.5
8.7
8.0
6.2
4.5
2.4
1.2
60.4
Fresno
0.9
1.7
3.3
4.8
6.7
7.8
8.4
7.1
5.2
3.2
1.4
0.6
51.1
Fresno State
0.9
1.6
3.2
5.2
7.0
8.0
8.7
7.6
5.4
3.6
1.7
0.9
53.7
Friant
1.2
1.5
3.1
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.3
Kerman
0.9
1.5
3.2
4.8
6.6
7.7
8.4
7.2
5.3
1 3.4
1.4
0.7
51.2
Kingsburg
1.0
1.5
3.4
4.8
6.6
7.7
8.4
7.2
5.3
3.4
1.4
0.7
51.6
Mendota
1.5
2.5
4.6
6.2
7.9
8.6
8.8
7.5
5.9
4.5
2.4
1.5
61.7
Orange Cove
1.2
1.9
3.5
4.7
7.4
8.5
8.9
7.9
5.9
3.7
1.8
1.2
56.7
Panoche
1.1
2.0
4.0
5.6
7.8
8.5
8.3
7.3
5.6
3.9
1.8
1.2
57.2
P arlier 1 1.0 1 1.9 1 3.6 1 5.2 6.8 1 7.6 1 8.1 7.0 1 5.1 1 3.4 1.7 0.9 1 52.0
Appendix A - Reference Evapotranspiration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
FRESNO
Reedley
1.1
1.5
3.2
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.3
Westlands
0.9
1.7
3.8
6.3
8.0
8.6
8.6
7.8
5.9
4.3
2.1
1.1
58.8
GLENN
Orland
1.1
1.8
3.4
5.0
6.4
7.5
7.9
6.7
5.3
3.9
1.8
1.4
52.1
Willows
1.2
1.7
2.9
4.7
6.1
7.2
8.5
7.3
5.3
3.6
1.7
1.0
51.3
HUMBOLDT
Eureka
0.5
1.1
2.0
3.0
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Ferndale
0.5
1.1
2.0
3.0
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Garberville
0.6
1.2
2.2
3.1
4.5
5.0
5.5
4.9
3.8
2.4
1.0
0.7
34.9
Hoopa
0.5
1.1
2.1
3.0
4.4
5.4
6.1
5.1
3.8
2.4
0.9
0.7
35.6
IMPERIAL
Brawley
2.8
3.8
5.9
8.0
10.4
11.5
11.7
10.0
8.4
6.2
3.5
2.1
84.2
Calipatria/Mulberry
2.4
3.2
5.1
6.8
8.6
9.2
9.2
8.6
7.0
5.2
3.1
2.3
70.7
El Centro
2.7
3.5
5.6
7.9
10.1
11.1
11.6
9.5
8.3
6.1
3.3
2.0
81.7
Holtville
2.8
3.8
5.9
7.9
10.4
11.6
12.0
10.0
8.6
6.2
3.5
2.1
84.7
Meloland
2.5
3.2
5.5
7.5
8.9
9.2
9.0
8.5
6.8
5.3
3.1
2.2
71.6
Palo Verde II
2.5
3.3
5.7
6.9
8.5
8.9
8.6
7.9
6.2
4.5
2.9
2.3
68.2
Seeley
2.7
3.5
5.9
7.7
9.7
10.1
9.3
8.3
6.9
5.5
3.4
2.2
75.4
Westmoreland
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Yuma
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
INYO
Bishop
1.7
2.7
4.8
6.7
8.2
10.9
7.4
9.6
7.4
4.8
2.5
1.6
68.3
Death Valley Jct
2.2
3.3
5.4
7.7
9.8
11.1
11.4
10.1
8.3
5.4
2.9
1.7
79.1
Independence
1.7
2.7
3.4
6.6
8.5
9.5
9.8
8.5
7.1
3.9
2.0
1.5
65.2
Lower Haiwee Res.
1.8
2.7
4.4
7.1
8.5
9.5
9.8
8.5
7.1
4.2
2.6
1.5
67.6
Oasis
2.7
2.8
5.9
8.0
10.4
11.7
11.6
10.0
8.4
6.2
3.4
2.1
83.1
KERN
Arvin
1.2
1.8
3.5
4.7
6.6
7.4
8.1
7.3
5.3
3.4
1.7
1.0
51.9
Bakersfield
1.0
1.8
3.5
4.7
6.6
7.7
8.5
7.3
5.3
3.5
1.6
0.9
52.4
Bakersfield/Bonanza
1.2
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Bakersfield/Greenlee
1.2
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Belridge
1.4
2.2
4.1
5.5
7.7
8.5
8.6
7.8
6.0
3.8
2.0
1.5
59.2
Blackwells Corner
1.4
2.1
3.8
5.4
7.0
7.8
8.5
7.7
5.8
3.9
1.9
1.2
56.6
Buttonwillow
1.0
1.8
3.2
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.5
0.9
52.0
China Lake
2.1
3.2
5.3
7.7
9.2
10.0
11.0
9.8
7.3
4.9
2.7
1.7
1 74.8
Delano
0.9
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.4
0.7
52.0
Famoso
1.3
1.9
3.5
4.8
6.7
7.6
8.0
7.3
5.5
3.5
1.7
1.3
53.1
Grapevine
1.3
1.8
3.1
4.4
5.6
6.8
7.6
6.8
5.9
3.4
1.9
1.0
49.5
Inyokern
2.0
3.1
4.9
7.3
8.5
9.7
11.0
9.4
7.1
5.1
2.6
1.7
72.4
Isabella Dam
1.2
1.4
2.8
4.4
5.8
7.3
7.9
7.0
5.0
3.2
1.7
0.9
48.4
Lamont
1.3
2.4
4.4
4.6
6.5
7.0
8.8
7.6
5.7
3.7
1.6
0.8
54.4
Lost Hills
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
McFarland/Kem
1.2
2.1
3.7
5.6
7.3
8.0
8.3
7.4
5.6
4.1
2.0
1.2
56.5
S hafter
1.0
1.7
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.5
0.9
52.1
Taft
1.3
1.8
3.1
4.3
6.2
7.3
8.5
7.3
5.4
3.4
1.7
1.0
51.2
Tehachapi
1.4
1.8
3.2
5.0
6.1
7.7
7.9
7.3
5.9
3.4
2.1
1.2
52.9
KINGS
19
Caruthers 1 1.6 1 2.5 1 4.0 5.7 7.8 1 8.7 1 9.3 8.4 1 6.3 1 4.4 2.4 L6 1 62.7
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
KINGS
Corcoran
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Hanford
0.9
1.5
3.4
5.0
6.6
7.7
8.3
7.2
5.4
3.4
1.4
0.7
51.5
Kettleman
1.1
2.0
4.0
6.0
7.5
8.5
9.1
8.2
6.1
4.5
2.2
1.1
60.2
Lemoore
0.9
1.5
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.4
0.7
51.7
Stratford
0.9
1.9
3.9
6.1
7.8
8.6
8.8
7.7
5.9
4.1
2.1
1.0
58.7
LAKE
Lakeport
1.1
1.3
2.6
3.5
5.1
6.0
7.3
6.1
4.7
2.9
1.2
0.9
42.8
Lower Lake
1.2
1.4
2.7
4.5
5.3
6.3
7.4
6.4
5.0
3.1
1.3
0.9
45.4
LASSEN
Buntingville
1.0
1.7
3.5
4.9
6.2
7.3
8.4
7.5
5.4
3.4
1.5
0.9
51.8
Ravendale
0.6
1.1
2.3
4.1
5.6
6.7
7.9
7.3
4.7
2.8
1.2
0.5
44.9
Susanville
0.7
1.0
2.2
4.1
5.6
6.5
7.8
7.0
4.6
2.8
1.2
0.5
44.0
LOS ANGELES
Burbank
2.1
2.8
3.7
4.7
5.1
6.0
6.6
6.7
5.4
4.0
2.6
2.0
51.7
Claremont
2.0
2.3
3.4
4.6
5.0
6.0
7.0
7.0
5.3
4.0
2.7
2.1
51.3
El Dorado
1.7
2.2
3.6
4.8
5.1
5.7
5.9
5.9
4.4
3.2
2.2
1.7
46.3
Glendale
2.0
2.2
3.3
3.8
4.7
4.8
5.7
5.6
4.3
3.3
2.2
1.8
43.7
Glendora
2.0
2.5
3.6
4.9
5.4
6.1
7.3
6.8
5.7
4.2
2.6
2.0
53.1
Gorman
1.6
2.2
3.4
4.6
5.5
7.4
7.7
7.1
5.9
3.6
2.4
1.1
52.4
Hollywood Hills
2.1
2.2
3.8
5.4
6.0
6.5
6.7
6.4
5.2
3.7
2.8
2.1
52.8
Lancaster
2.1
3.0
4.6
5.9
8.5
9.7
11.0
9.8
7.3
4.6
2.8
1.7
71.1
Long Beach
1.8
2.1
3.3
3.9
4.5
4.3
5.3
4.7
3.7
2.8
1.8
1.5
39.7
Los Angeles
2.2
2.7
3.7
4.7
5.5
5.8
6.2
5.9
5.0
3.9
2.6
1.9
50.1
Monrovia
2.2
2.3
3.8
4.3
5.5
5.9
6.9
6.4
5.1
3.2
2.5
2.0
50.2
Palmdale
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
Pasadena
2.1
2.7
3.7
4.7
5.1
6.0
7.1
6.7
5.6
4.2
2.6
2.0
52.3
Pearblossom
1.7
2.4
3.7
4.7
7.3
7.7
9.9
7.9
6.4
4.0
2.6
1.6
59.9
Pomona
1.7
2.0
3.4
4.5
5.0
5.8
6.5
6.4
4.7
3.5
2.3
1.7
47.5
Redondo Beach
2.2
2.4
3.3
3.8
4.5
4.7
5.4
4.8
4.4
2.8
2.4
2.0
42.6
San Fernando
2.0
2.7
3.5
4.6
5.5
5.9
7.3
6.7
5.3
3.9
2.6
2.0
52.0
Santa Clarita
2.8
2.8
4.1
5.6
6.0
6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Santa Monica
1.8
2.1
3.3
4.5
4.7
5.0
5.4
5.4
3.9
3.4
2.4
2.2
44.2
MADERA
Chowchilla
1.0
1.4
3.2
4.7
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Madera
0.9
1.4
3.2
4.8
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.5
Raymond
1.2
1.5
3.0
4.6
6.1
7.6
8.4
7.3
5.2
3.4
1.4
0.7
50.5
MARIN
Black Point
1.1
1.7
3.0
1 4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
1 0.9
43.0
Novato
1.3
1.5
2.4
3.5
4.4
6.0
5.9
5.4
4.4
2.8
1.4
0.7
39.8
Point San Pedro
1.1
1.7
3.0
4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
0.9
43.0
San Rafael
1.2
1.3
2.4
3.3
4.0
4.8
4.8
4.9
4.3
2.7
1.3
0.7
35.8
MARIPOSA
Coulterville
1.1
1.5
2.8
4.4
5.9
1 7.3
8.1
7.0
5.3
3.4
1.4
0.7
48.8
Mariposa
1.1
1.5
2.8
4.4
5.9
7.4
8.2
7.1
5.0
3.4
1.4
0.7
49.0
Yosemite Village
0.7
1.0
2.3
3.7
5.1
6.5
7.1
6.1
4.4
2.9
1.1
0.6
41.4
MENDOCINO
Fort Bragg
0.9
1.3
2.2
3.0
3.7
3.5
3.7
3.7
3.0
2.3
1.2
0.7
1 29.0
20
Hopland 1 1.1 1 1.3 1 2.6 3.4 5.0 1 5.9 1 6.5 5.7 1 4.5 1 2.8 1.3 0.7 1 40.9
Appendix A - Reference Eva otrans iration (ETo) Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
MENDOCINO
Point Arena
1.0
1.3
2.3
3.0
3.7
3.9
3.7
3.7
3.0
2.3
1.2
0.7
29.6
Sanel Valley
1.0
1.6
3.0
4.6
6.0
7.0
8.0
7.0
5.2
3.4
1.4
0.9
49.1
Ukiah
1.0
1.3
2.6
3.3
5.0
5.8
6.7
5.9
4.5
2.8
1.3
0.7
40.9
MERCED
Kesterson
0.9
1.7
3.4
5.5
7.3
8.2
8.6
7.4
5.5
3.8
1.8
0.9
55.1
Los Banos
1.0
1.5
3.2
4.7
6.1
7.4
8.2
7.0
5.3
3.4
1.4
0.7
50.0
Merced
1.0
1.5
3.2
4.7
6.6
7.9
8.5
7.2
5.3
3.4
1.4
0.7
51.5
MODOC
Modoc/Alturas
0.9
1.4
2.8
3.7
5.1
6.2
7.5
6.6
4.6
2.8
1.2
0.7
43.2
MONO
Bridgeport
0.7
0.9
2.2
3.8
5.5
6.6
7.4
6.7
4.7
2.7
1.2
0.5
43.0
MONTEREY
Arroyo Seco
1.5
2.0
3.7
5.4
6.3
7.3
7.2
6.7
5.0
3.9
2.0
1.6
52.6
Castroville
1.4
1.7
3.0
4.2
4.6
4.8
4.0
3.8
3.0
2.6
1.6
1.4
36.2
Gonzales
1.3
1.7
3.4
4.7
5.4
6.3
6.3
5.9
4.4
3.4
1.9
1.3
45.7
Greenfield
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
King City
1.7
2.0
3.4
4.4
4.4
5.6
6.1
6.7
6.5
5.2
2.2
1.3
49.6
King City -Oasis Rd.
1.4
1.9
3.6
5.3
6.5
7.3
7.4
6.8
5.1
4.0
2.0
1.5
52.7
Long Valley
1.5
1.9
3.2
4.1
5.8
6.5
7.3
6.7
5.3
3.6
2.0
1.2
49.1
Monterey
1.7
1.8
2.7
3.5
4.0
4.1
4.3
4.2
3.5
2.8
1.9
1.5
36.0
Pajaro
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
3.4
2.4
1.8
46.1
Salinas
1.6
1.9
2.7
3.8
4.8
4.7
5.0
4.5
4.0
2.9
1.9
1.3
39.1
Salinas North
1.2
1.5
2.9
4.1
4.6
5.2
4.5
4.3
3.2
2.8
1.5
1.2
36.9
San Ardo
1.0
1.7
3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
San Juan
1.8
2.1
3.4
4.6
5.3
5.7
5.5
4.9
3.8
3.2
2.2
1.9
44.2
S oledad
1.7
2.0
3.4
4.4
5.5
5.4
6.5
6.2
5.2
3.7
2.2
1.5
47.7
NAPA
Angwin
1.8
1.9
3.2
4.7
5.8
7.3
8.1
7.1
5.5
4.5
2.9
2.1
54.9
Cameros
0.8
1.5
3.1
4.6
5.5
6.6
6.9
6.2
4.7
3.5
1.4
1.0
45.8
Oakville
1.0
1.5
2.9
4.7
5.8
6.9
7.2
6.4
4.9
3.5
1.6
1.2
47.7
St Helena
1.2
1.5
2.8
3.9
5.1
6.1
7.0
6.2
4.8
3.1
1.4
0.9
44.1
Yountville
1.3
1.7
2.8
3.9
5.1
6.0
7.1
6.1
4.8
3.1
1.5
0.9
44.3
NEVADA
Grass Valley
1.1
1.5
2.6
4.0
5.7
7.1
7.9
7.1
5.3
3.2
1.5
0.9
48.0
Nevada City
1.1
1.5
2.6
3.9
5.8
6.9
7.9
7.0
5.3
3.2
1.4
0.9
47.4
ORANGE
Irvine
2.2
2.5
3.7
4.7
5.2
5.9
6.3
6.2
4.6
3.7
2.6
2.3
49.6
Laguna Beach
2.2
2.7
3.4
3.8
4.6
4.6
4.9
4.9
4.4
3.4
2.4
2.0
43.2
Santa Ana
2.2
2.7
3.7
4.5
4.6
5.4
6.2
6.1
4.7
3.7
2.5
2.0
48.2
PLACER
Auburn
1.2
1.7
2.8
4.4
6.1
7.4
8.3
7.3
5.4
3.4
1.6
1.0
50.6
Blue Canyon
0.7
1.1
2.1
3.4
4.8
6.0
7.2
6.1
4.6
2.9
0.9
0.6
40.5
Colfax
1.1
1.5
2.6
4.0
5.8
7.1
7.9
7.0
5.3
3.2
1.4
0.9
47.9
Roseville
1.1
1.7
3.1
4.7
6.2
7.7
8.5
7.3
5.6
3.7
1.7
1.0
52.2
Soda Springs
0.7
0.7
1.8
3.0
4.3
5.3
6.2
5.5
4.1
2.5
0.7
0.7
35.4
Tahoe City
0.7
0.7
1.7
3.0
4.3
5.4
6.1
5.6
4.1
2.4
0.8
0.6
35.5
Truckee
0.7
0.7
1.7
3.2
4.4
5.4
6.4
5.7
4.1
2.4
0.8
0.6
36.2
21
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
PLUMAS
Portola
0.7
0.9
1.9
3.5
4.9
5.9
7.3
5.9
4.3
2.7
0.9
0.5
39.4
Quincy
0.7
0.9
2.2
3.5
4.9
5.9
7.3
5.9
4.4
2.8
1.2
0.5
40.2
RIVERSIDE
Beaumont
2.0
2.3
3.4
4.4
6.1
7.1
7.6
7.9
6.0
3.9
2.6
1.7
55.0
Blythe
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Cathedral City
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Coachella
2.9
4.4
6.2
8.4
10.5
11.9
12.3
10.1
8.9
6.2
3.8
2.4
88.1
Desert Center
2.9
4.1
6.4
8.5
11.0
12.1
12.2
11.1
9.0
6.4
3.9
2.6
90.0
Elsinore
2.1
2.8
3.9
4.4
5.9
7.1
7.6
7.0
5.8
3.9
2.6
1.9
55.0
Indio
3.1
3.6
6.5
8.3
10.5
11.0
10.8
9.7
8.3
5.9
3.7
2.7
83.9
La Quinta
2.4
2.8
5.2
6.5
8.3
8.7
8.5
7.9
6.5
4.5
2.7
2.2
66.2
Mecca
2.6
3.3
5.7
7.2
8.6
9.0
8.8
8.2
6.8
5.0
3.2
2.4
70.8
Oasis
2.9
3.3
5.3
6.1
8.5
8.9
8.7
7.9
6.9
4.8
2.9
2.3
68.4
Palm Desert
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
Palm Springs
2.0
2.9
4.9
7.2
8.3
8.5
11.6
8.3
7.2
5.9
2.7
1.7
71.1
Rancho California
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
Rancho Mirage
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Ripley
2.7
3.3
5.6
7.2
8.7
8.7
8.4
7.6
6.2
4.6
2.8
2.2
67.8
Salton Sea North
2.5
3.3
5.5
7.2
8.8
9.3
9.2
8.5
6.8
5.2
3.1
2.3
71.7
Temecula East II
2.3
2.4
4.1
4.9
6.4
7.0
7.8
7.4
5.7
4.1
2.6
2.2
56.7
Thermal
2.4
3.3
5.5
7.6
9.1
9.6
9.3
8.6
7.1
5.2
3.1
2.1
72.8
Riverside UC
2.5
2.9
4.2
5.3
5.9
6.6
7.2
6.9
5.4
4.1
2.9
2.6
56.4
Winchester
2.3
2.4
4.1
4.9
6.4
6.9
7.7
7.5
6.0
3.9
2.6
2.1
56.8
SACRAMENTO
Fair Oaks
1.0
1.6
3.4
4.1
6.5
7.5
8.1
7.1
5.2
3.4
1.5
1.0
50.5
Sacramento
1.0
1.8
3.2
4.7
6.4
7.7
8.4
7.2
5.4
3.7
1.7
0.9
51.9
Twitchell Island
1.2
1.8
3.9
5.3
7.4
8.8
9.1
7.8
5.9
3.8
1.7
1.2
57.9
SAN BENITO
Hollister
1.5
1.8
3.1
4.3
5.5
5.7
6.4
5.9
5.0
3.5
1.7
1.1
45.1
San Benito
1.2
1.6
3.1
4.6
5.6
6.4
6.9
6.5
4.8
3.7
1.7
1.2
47.2
San Juan Valley
1.4
1.8
3.4
4.5
6.0
6.7
7.1
6.4
5.0
3.5
1.8
1.4
49.1
SAN BERNARDINO
Baker
2.7
3.9
6.1
8.3
10.4
11.8
12.2
11.0
8.9
6.1
3.3
2.1
86.6
Barstow NE
2.2
2.9
5.3
6.9
9.0
10.1
9.9
8.9
6.8
4.8
2.7
2.1
71.7
Big Bear Lake
1.8
2.6
4.6
6.0
7.0
7.6
8.1
7.4
5.4
4.1
2.4
1.8
58.6
Chino
2.1
2.9
3.9
4.5
5.7
6.5
7.3
7.1
5.9
4.2
2.6
2.0
54.6
Crestline
1.5
1.9
3.3
4.4
5.5
6.6
7.8
7.1
5.4
3.5
2.2
1.6
50.8
Lake Arrowhead
1.8
2.6
4.6
6.0
7.0
7.6
8.1
7.4
5.4
4.1
2.4
1.8
58.6
Lucerne Valley
2.2
2.9
5.1
6.5
9.1
11.0
11.4
9.9
7.4
5.0
3.0
1.8
75.3
Needles
3.2
4.2
6.6
8.9
11.0
12.4
12.8
11.0
8.9
6.6
4.0
2.7
92.1
Newberry Springs
2.1
2.9
5.3
8.4
9.8
10.9
11.1
9.9
7.6
5.2
3.1
2.0
78.2
San Bernardino
2.0
2.7
3.8
4.6
5.7
6.9
7.9
7.4
5.9
4.2
2.6
2.0
55.6
Twentynine Palms
2.6
3.6
5.9
7.9
10.1
11.2
11.2
10.3
8.6
5.9
3.4
2.2
82.9
Victorville
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
SAN DIEGO
Chula Vista
2.2
2.7
3.4
3.8
4.9
4.7
5.5
4.9
4.5
3.4
2.4
2.0
44.2
Escondido SPV
2.4
2.6
3.9
4.7
5.9
6.5
7.1
6.7
5.3
3.9
2.8
2.3
54.2
22
Miramar 1 2.3 1 2.5 1 3.7 4.1 5.1 1 5.4 1 6.1 5.8 1 4.5 1 3.3 2.4 1 2.1 1 47.1
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SAN DIEGO
Oceanside
2.2
2.7
3.4
3.7
4.9
4.6
4.6
5.1
4.1
3.3
2.4
2.0
42.9
Otay Lake
2.3
2.7
3.9
4.6
5.6
5.9
6.2
6.1
4.8
3.7
2.6
2.2
50.4
Pine Valley
1.5
2.4
3.8
5.1
6.0
7.0
7.8
7.3
6.0
4.0
2.2
1.7
54.8
Ramona
2.1
2.1
3.4
4.6
5.2
6.3
6.7
6.8
5.3
4.1
2.8
2.1
51.6
San Diego
2.1
2.4
3.4
4.6
5.1
5.3
5.7
5.6
4.3
3.6
2.4
2.0
46.5
Santee
2.1
2.7
3.7
4.5
5.5
6.1
6.6
6.2
5.4
3.8
2.6
2.0
51.1
Torrey Pines
2.2
2.3
3.4
3.9
4.0
4.1
4.6
4.7
3.8
2.8
2.0
2.0
39.8
Warner Springs
1.6
2.7
3.7
4.7
5.7
7.6
8.3
7.7
6.3
4.0
2.5
1.3
56.0
SAN FRANCISCO
San Francisco
1.5
1.3
2.4
3.0
3.7
4.6
4.9
4.8
4.1
2.8
1.3
0.7
35.1
SAN JOAQUIN
Farmington
1.5
1.5
2.9
4.7
6.2
7.6
8.1
6.8
5.3
3.3
1.4
0.7
50.0
Lodi West
1.0
1.6
3.3
4.3
6.3
6.9
7.3
6.4
4.5
3.0
1.4
0.8
46.7
Manteca
0.9
1.7
3.4
5.0
6.5
7.5
8.0
7.1
5.2
3.3
1.6
0.9
51.2
Stockton
0.8
1.5
2.9
4.7
6.2
7.4
8.1
6.8
5.3
3.2
1.4
0.6
49.1
Tracy
1.0
1.5
2.9
4.5
6.1
7.3
7.9
6.7
5.3
3.2
1.3
0.7
48.5
SAN LUIS OBISPO
Arroyo Grande
2.0
2.2
3.2
3.8
4.3
4.7
4.3
4.6
3.8
3.2
2.4
1.7
40.0
Atascadero
1.2
1.5
2.8
3.9
4.5
6.0
6.7
6.2
5.0
3.2
1.7
1.0
43.7
Morro Bay
2.0
2.2
3.1
3.5
4.3
4.5
4.6
4.6
3.8
3.5
2.1
1.7
39.9
Nipomo
2.2
2.5
3.8
5.1
5.7
6.2
6.4
6.1
4.9
4.1
2.9
2.3
52.1
Paso Robles
1.6
2.0
3.2
4.3
5.5
6.3
7.3
6.7
5.1
3.7
2.1
1.4
49.0
San Luis Obispo
2.0
2.2
3.2
4.1
4.9
5.3
4.6
5.5
4.4
3.5
2.4
1.7
43.8
San Miguel
1.6
2.0
3.2
4.3
5.0
6.4
7.4
6.8
5.1
3.7
2.1
1.4
49.0
San Simeon
2.0
2.0
2.9
3.5
4.2
4.4
4.6
4.3
3.5
3.1
2.0
1.7
38.1
SAN MATEO
Hal Moon Bay
1.5
1.7
2.4
3.0
3.9
4.3
4.3
4.2
3.5
2.8
1.3
1.0
33.7
Redwood City
1.5
1.8
2.9
3.8
5.2
5.3
6.2
5.6
4.8
3.1
1.7
1.0
42.8
Woodside
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
SANTA BARBARA
Betteravia
2.1
2.6
4.0
5.2
6.0
5.9
5.8
5.4
4.1
3.3
2.7
2.1
49.1
Carpenteria
2.0
2.4
3.2
3.9
4.8
5.2
5.5
5.7
4.5
3.4
2.4
2.0
44.9
Cuyama
2.1
2.4
3.8
5.4
6.9
7.9
8.5
7.7
5.9
4.5
2.6
2.0
59.7
Goleta
2.1
2.5
3.9
5.1
5.7
5.7
5.4
5.4
4.2
3.2
2.8
2.2
48.1
Goleta Foothills
2.3
2.6
3.7
5.4
5.3
5.6
5.5
5.7
4.5
3.9
2.8
2.3
49.6
Guadalupe
2.0
2.2
3.2
3.7
4.9
4.6
4.5
4.6
4.1
3.3
2.4
1.7
41.1
Lompoc
2.0
2.2
3.2
3.7
4.8
4.6
4.9
4.8
3.9
3.2
2.4
1.7
41.1
Los Alamos
1.8
2.0
3.2
4.1
4.9
5.3
5.7
5.5
4.4
3.7
2.4
1.6
44.6
Santa Barbara
2.0
2.5
3.2
3.8
4.6
5.1
5.5
4.5
3.4
2.4
1.8
1.8
40.6
Santa Maria
1.8
2.3
3.7
5.1
5.7
5.8
5.6
5.3
4.2
3.5
2.4
1.9
47.4
Santa Ynez
1.7
2.2
3.5
5.0
5.8
6.2
6.4
6.0
4.5
3.6
2.2
1.7
48.7
Sisquoc
2.1
2.5
3.8
4.1
6.1
6.3
6.4
5.8
4.7
3.4
2.3
1.8
49.2
S olvang
2.0
2.0
3.3
4.3
5.0
5.6
6.1
5.6
4.4
3.7
2.2
1.6
45.6
SANTA CLARA
Gilroy
1.3
1.8
3.1
4.1
5.3
5.6
6.1
5.5
4.7
3.4
1.7
1.1
43.6
Los Gatos
1.5
1.8
2.8
3.9
5.0
5.6
6.2
5.5
4.7
3.2
1.7
1.1
42.9
Morgan Hill
1.5
1.8
3.4
4.2
6.3
7.0
7.1
6.0
5.1
3.7
1.9
1.4
49.5
23
Palo Alto 1 1.5 1.8 1 2.8 1 3.8 5.2 1 5.3 1 6.2 5.6 1 5.0 1 3.2 1.7 1.0 43.0
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SANTA CLARA
San Jose
1.5
1.8
3.1
4.1
5.5
5.8
6.5
5.9
5.2
3.3
1.8
1.0
45.3
SANTA CRUZ
De Laveaga
1.4
1.9
3.3
4.7
4.9
5.3
5.0
4.8
3.6
3.0
1.6
1.3
40.8
Green Valley Rd
1.2
1.8
3.2
4.5
4.6
5.4
5.2
5.0
3.7
3.1
1.6
1.3
40.6
Santa Cruz
1.5
1.8
2.6
3.5
4.3
4.4
4.8
4.4
3.8
2.8
1.7
1.2
36.6
Watsonville
1.5
1.8
2.7
3.7
4.6
4.5
4.9
4.2
4.0
2.9
1.8
1.2
37.7
Webb
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
3.4
2.4
1.8
46.2
SHASTA
Burney
0.7
1.0
2.1
3.5
4.9
5.9
7.4
6.4
4.4
2.9
0.9
0.6
40.9
Fall River Mills
0.6
1.0
2.1
3.7
5.0
6.1
7.8
6.7
4.6
2.8
0.9
0.5
41.8
Glenburn
0.6
1.0
2.1
3.7
5.0
6.3
7.8
6.7
4.7
2.8
0.9
0.6
42.1
McArthur
0.7
1.4
2.9
4.2
5.6
6.9
8.2
7.2
5.0
3.0
1.1
0.6
46.8
Redding
1.2
1.4
2.6
4.1
5.6
7.1
8.5
7.3
5.3
3.2
1.4
0.9
48.8
SIERRA
Downieville
0.7
1.0
2.3
3.5
5.0
6.0
7.4
6.2
4.7
2.8
0.9
0.6
41.3
Sierraville
0.7
1.1
2.2
3.2
4.5
5.9
7.3
6.4
4.3
2.6
0.9
0.5
39.6
SISKIYOU
Happy Camp
0.5
0.9
2.0
3.0
4.3
5.2
6.1
5.3
4.1
2.4
0.9
0.5
35.1
MacDoel
1.0
1.7
3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
Mt Shasta
0.5
0.9
2.0
3.0
4.5
5.3
6.7
5.7
4.0
2.2
0.7
0.5
36.0
Tule lake F S
0.7
1.3
2.7
4.0
5.4
6.3
7.1
6.4
4.7
2.8
1.0
0.6
42.9
Weed
0.5
0.9
2.0
2.5
4.5
5.3
6.7
5.5
3.7
2.0
0.9
0.5
34.9
Yreka
0.6
0.9
2.1
3.0
4.9
5.8
7.3
6.5
4.3
2.5
0.9
0.5
39.2
SOLANO
Benicia
1.3
1.4
2.7
3.8
4.9
5.0
6.4
5.5
4.4
2.9
1.2
0.7
40.3
Dixon
0.7
1.4
3.2
5.2
6.3
7.6
8.2
7.2
5.5
4.3
1.6
1.1
52.1
Fairfield
1.1
1.7
2.8
4.0
5.5
6.1
7.8
6.0
4.8
3.1
1.4
0.9
45.2
Hastings Tract
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Putah Creek
1.0
1.6
3.2
4.9
6.1
7.3
7.9
7.0
5.3
3.8
1.8
1.2
51.0
Rio Vista
0.9
1.7
2.8
4.4
5.9
6.7
7.9
6.5
5.1
3.2
1.3
0.7
47.0
Suisun Valley
0.6
1.3
3.0
4.7
5.8
7.0
7.7
6.8
5.3
3.8
1.4
0.9
48.3
Winters
0.9
1.7
3.3
5.0
6.4
7.5
7.9
7.0
5.2
3.5
1.6
1.0
51.0
SONOMA
Bennett Valley
1.1
1.7
3.2
4.1
5.5
6.5
6.6
5.7
4.5
3.1
1.5
0.9
44.4
Cloverdale
1.1
1.4
2.6
3.4
5.0
5.9
6.2
5.6
4.5
2.8
1.4
0.7
40.7
Fort Ross
1.2
1.4
2.2
3.0
3.7
4.5
4.2
4.3
3.4
2.4
1.2
0.5
31.9
Healdsburg
1.2
1.5
2.4
3.5
5.0
5.9
6.1
5.6
4.5
2.8
1.4
0.7
40.8
Lincoln
1.2
1.7
2.8
4.7
6.1
7.4
8.4
7.3
5.4
3.7
1.9
1.2
51.9
Petaluma
1.2
1.5
2.8
3.7
4.6
5.6
4.6
5.7
4.5
2.9
1.4
0.9
39.6
Santa Rosa
1.2
1.7
2.8
3.7
5.0
6.0
6.1
5.9
4.5
2.9
1.5
0.7
42.0
Valley of the Moon
1.0
1.6
3.0
4.5
5.6
6.6
7.1
6.3
4.7
3.3
1.5
1.0
46.1
Windsor
0.9
1.6
3.0
4.5
5.5
6.5
6.5
5.9
4.4
3.2
1.4
1.0
44.2
STANISLAUS
Denair
1.0
1.9
3.6
4.7
7.0
7.9
8.0
6.1
5.3
3.4
1.5
1.0
51.4
La Grange
1.2
1.5
3.1
4.7
6.2
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.2
Modesto
0.9
1.4
3.2
4.7
6.4
7.7
8.1
6.8
5.0
3.4
1.4
0.7
49.7
Newman
1.0
1.5
3.2
4.6
6.2
7.4
8.1
6.7
5.0
3.4
1.4
0.7
49.3
24
Oakdale 1 1.2 1 1.5 3.2 4.7 6.2 1 7.7 1 8.1 7.1 1 5.1 1 3.4 1.4 1 0.7 50.3
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
STANISLAUS
Patterson
1.3
2.1
4.2
5.4
7.9
8.6
8.2
6.6
5.8
4.0
1.9
1.3
57.3
Turlock
0.9
1.5
3.2
4.7
6.5
7.7
8.2
7.0
5.1
3.4
1.4
0.7
50.2
SUTTER
Nicolaus
0.9
1.6
3.2
4.9
6.3
7.5
8.0
6.9
5.2
3.4
1.5
0.9
50.2
Yuba City
1.3
2.1
2.8
4.4
5.7
7.2
7.1
6.1
4.7
3.2
1.2
0.9
46.7
TEHAMA
Corning
1.2
1.8
2.9
4.5
6.1
7.3
8.1
7.2
5.3
3.7
1.7
1.1
50.7
Gerber
1.0
1.8
3.5
5.0
6.6
7.9
8.7
7.4
5.8
4.1
1.8
1.1
54.7
Gerber Dryland
0.9
1.6
3.2
4.7
6.7
8.4
9.0
7.9
6.0
4.2
2.0
1.0
55.5
Red Bluff
1.2
1.8
2.9
4.4
5.9
7.4
8.5
7.3
5.4
3.5
1.7
1.0
51.1
TRINITY
Hay Fork
0.5
1.1
2.3
3.5
4.9
5.9
7.0
6.0
4.5
2.8
0.9
0.7
40.1
Weaverville
0.6
1.1
2.2
3.3
4.9
5.9
7.3
6.0
4.4
2.7
0.9
0.7
40.0
TULARE
Alpaugh
0.9
1.7
3.4
4.8
6.6
7.7
8.2
7.3
5.4
3.4
1.4
0.7
51.6
Badger
1.0
1.3
2.7
4.1
6.0
7.3
7.7
7.0
4.8
3.3
1.4
0.7
47.3
Delano
1.1
1.9
4.0
4.9
7.2
7.9
8.1
7.3
5.4
3.2
1.5
1.2
53.6
Dinuba
1.1
1.5
3.2
4.7
6.2
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.2
Lindcove
0.9
1.6
3.0
4.8
6.5
7.6
8.1
7.2
5.2
3.4
1.6
0.9
50.6
Porterville
1.2
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.3
3.4
1.4
0.7
52.1
Visalia
0.9
1.7
3.3
5.1
6.8
7.7
7.9
6.9
4.9
3.2
1.5
0.8
50.7
TUOLUMNE
Groveland
1.1
1.5
2.8
4.1
5.7
7.2
7.9
6.6
5.1
3.3
1.4
0.7
47.5
Sonora
1.1
1.5
2.8
4.1
5.8
7.2
7.9
6.7
5.1
3.2
1.4
0.7
47.6
VENTURA
Camarillo
2.2
2.5
3.7
4.3
5.0
5.2
5.9
5.4
4.2
3.0
2.5
2.1
46.1
Oxnard
2.2
2.5
3.2
3.7
4.4
4.6
5.4
4.8
4.0
3.3
2.4
2.0
42.3
Piru
2.8
2.8
4.1
5.6
6.0
6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Port Hueneme
2.0
2.3
3.3
4.6
4.9
4.9
4.9
5.0
3.7
3.2
2.5
2.2
43.5
Thousand Oaks
2.2
2.6
3.4
4.5
5.4
5.9
6.7
6.4
5.4
3.9
2.6
2.0
51.0
Ventura
2.2
2.6
3.2
3.8
4.6
4.7
5.5
4.9
4.1
3.4
2.5
2.0
43.5
YOLO
Bryte
0.9
1.7
3.3
5.0
6.4
7.5
7.9
7.0
5.2
3.5
1.6
1.0
51.0
Davis
1.0
1.9
3.3
5.0
6.4
7.6
8.2
7.1
5.4
4.0
1.8
1.0
52.5
Esparto
1.0
1.7
3.4
5.5
6.9
8.1
8.5
7.5
5.8
4.2
2.0
1.2
55.8
Winters
1.7
1.7
2.9
4.4
5.8
7.1
7.9
6.7
5.3
3.3
1.6
1.0
49.4
Woodland
1.0
1.8
3.2
4.7
6.1
7.7
8.2
7.2
5.4
3.7
1.7
1.0
51.6
Zamora
1.1
1.9
3.5
5.2
6.4
7.4
7.8
7.0
5.5
4.0
1.9
1.2
52.8
YUBA
Browns Valley
1.0
1.7
3.1
4.7
6.1
7.5
8.5
7.6
5.7
4.1
2.0
1.1
52.9
Brownsville
1.1
1 1.4
2.6
4.0
5.7
6.8
7.9
6.8
5.3
3.4
1.5
0.9
47.4
* The values in this table were derived from:
1) California Irrigation Management Information System (CIMIS);
2) Reference EvapoTranspiration Zones Map, UC Dept. of Land, Air & Water Resources and California Dept. of Water
Resources 1999; and
3) Reference Evapotranspiration for California, University of California, Department of Agriculture and Natural Resources
(1987) Bulletin 1922;
25
4) Determining Daily Reference Evapotranspiration, Cooperative Extension UC Division of Agriculture and Natural Resources
(1987), Publication Leaflet 21426
0Z
Appendix B — Sample Water Efficient Landscape Worksheet.
WATER EFFICIENT LANDSCAPE WORKSHEET
This worksheet is filled out by the project applicant and it is a required element of the Landscape Documentation Package.
Reference Evapotranspiration (ETo)
Hydrozone #
(Planting
Description'
Plant
Factor (PF)
Irrigation
Method
Irrigation
Efficiency
(IE)`
ETAF
(PFIIE)
Landscape
Area (sq, ft,)
ETAF x Area
Estimated Total
Water Use
(ETWU)e
Regular Landscape Areas
Totals
(A)
(B)
Special Landscape Areas
1
1
1
Totals
(C)
(D)
ETWU Total
Maximum Allowed Water Allowance (MAWA)e
allydrozone #/Planting Description
E.g
1.) front lawn
2.) low water use plantings
3.) medium water use planting
blrrigation Method `Irrigation Efficiency
overhead spray 0.75 for spray head
or drip 0.81 for drip
eMA WA (Annual Gallons Allowed) _ (Eto) (0.62) ( (ETAF x LA)
+ ((I-ETAF) x SLA)J
where 0.62 is a conversion factor that converts acre -
inches per acre per year to gallons per square foot per
year, LA is the total landscape area in square feet, SLA
is the total special landscape area in square feet,
and ETAF is .55 for residential areas and 0.45 for non-
residential areas.
ETAF Calculations
Regular Landscape Areas
Total ETAF x Area
(B)
Total Area
(A)
Average ETAF
B _ A
All Landscape Areas
Total ETAF x Area (B+D)
Total Area (A+C)
dETWU(Annual Gallons Required) _
Eto x 0.62 x ETAF x Area
where 0.62 is a conversion
factor that converts acre -
inches per acre per year to
gallons per square foot per
year.
Average ETAF for Regular Landscape Areas must
be 0.55 or below for residential areas, and 0.45 or
below for non-residential areas.
27
Sitewide ETAF
Appendix C — Sample Certificate of Completion.
CERTIFICATE OF COMPLETION
This certificate is filled out by the project applicant upon completion of the landscape project.
PART 1. PROJECT INFORMATION SHEET
Date
Project Name
Name of Project Applicant
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Project Address and Location:
Street Address Parcel, tract or lot number, if available.
City Latitude/Longitude (optional)
State Zip Code
Pronertv Owner or his/her desiqnee:
Name
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Property Owner
"I/we certify that I/we have received copies of all the documents within the Landscape Documentation Package
and the Certificate of Completion and that it is our responsibility to see that the project is maintained in
accordance with the Landscape and Irrigation Maintenance Schedule."
Property Owner Signature
Date
Please answer the questions below:
1. Date the Landscape Documentation Package was submitted to the local agency
2. Date the Landscape Documentation Package was approved by the local agency
3. Date that a copy of the Water Efficient Landscape Worksheet (including the Water Budget Calculation) was
submitted to the local water purveyor
29
PART 2. CERTIFICATION OF INSTALLATION ACCORDING TO THE LANDSCAPE
DOCUMENTATION PACKAGE
"I/we certify that based upon periodic site observations, the work has been completed in accordance with the
ordinance and that the landscape planting and irrigation installation conform with the criteria and specifications of
the approved Landscape Documentation Package."
Signature*
Date
Name (print)
Telephone No.
Fax No.
Title
Email Address
License No. or Certification No.
Company
Street Address
City
State
Zip Code
*Signer of the landscape design plan, signer of the irrigation plan, or a licensed landscape contractor.
PART 3. IRRIGATION SCHEDULING
Attach parameters for setting the irrigation schedule on controller per ordinance Section 492.10.
PART 4. SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE
Attach schedule of Landscape and Irrigation Maintenance per ordinance Section 492.11.
PART 5. LANDSCAPE IRRIGATION AUDIT REPORT
Attach Landscape Irrigation Audit Report per ordinance Section 492.12.
PART 6. SOIL MANAGEMENT REPORT
Attach soil analysis report, if not previously submitted with the Landscape Documentation Package per ordinance
Section 492.6.
Attach documentation verifying implementation of recommendations from soil analysis report per ordinance
Section 492.6.
011
Appendix D — Prescriptive Compliance Option
(a) This appendix contains prescriptive requirements which may be used as a compliance option to the Model
Water Efficient Landscape Ordinance.
(b) Compliance with the following items is mandatory and must be documented on a landscape plan in order to
use the prescriptive compliance option:
(1) Submit a Landscape Documentation Package which includes the following elements:
(A) date
(B) project applicant
(C) project address (if available, parcel and/or lot number(s))
(D) total landscape area (square feet), including a breakdown of turf and plant material
(E) project type (e.g., new, rehabilitated, public, private, cemetery, homeowner -installed)
(F) water supply type (e.g., potable, recycled, well) and identify the local retail water purveyor if the
applicant is not served by a private well
(G) contact information for the project applicant and property owner
(H) applicant signature and date with statement, "I agree to comply with the requirements of the
prescriptive compliance option to the MWELO".
(2) Incorporate compost at a rate of at least four cubic yards per 1,000 square feet to a depth of six
inches into landscape area (unless contra -indicated by a soil test);
(3) Plant material shall comply with all of the following;
(A) For residential areas, install climate adapted plants that require occasional, little or no summer water
(average WUCOLS plant factor 0.3) for 75% of the plant area excluding edibles and areas using recycled
water; For non-residential areas, install climate adapted plants that require occasional, little or no summer
water (average WUCOLS plant factor 0.3) for 100% of the plant area excluding edibles and areas using
recycled water;
(B) A minimum three inch (Y) layer of mulch shall be applied on all exposed soil surfaces of planting
areas except in turf areas, creeping or rooting groundcovers, or direct seeding applications where mulch is
contraindicated.
(4) Turf shall comply with all of the following:
(A) Turf shall not exceed 25% of the landscape area in residential areas, and there shall be no turf in non-
residential areas;
(B) Turf shall not be planted on sloped areas which exceed a slope of 1 foot vertical elevation change for
every 4 feet of horizontal length;
(C) Turf is prohibited in parkways less than 10 feet wide, unless the parkway is adjacent to a parking strip
and used to enter and exit vehicles. Any turf in parkways must be irrigated by sub -surface irrigation or by
other technology that creates no overspray or runoff.
(5) Irrigation systems shall comply with the following:
(A) Automatic irrigation controllers are required and must use evapotranspiration or soil moisture sensor
data and utilize a rain sensor.
(B) Irrigation controllers shall be of a type which does not lose programming data in the event the primary
power source is interrupted.
(C) Pressure regulators shall be installed on the irrigation system to ensure the dynamic pressure of the
system is within the manufacturers recommended pressure range.
(D) Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) shall be installed as close
as possible to the point of connection of the water supply.
(E) All irrigation emission devices must meet the requirements set in the ANSI standard, ASABE/ICC
802-2014. "Landscape Irrigation Sprinkler and Emitter Standard," All sprinkler heads installed in the
landscape must document a distribution uniformity low quarter of 0.65 or higher using the protocol
defined in ASABE/ICC 802-2014.
(F) Areas less than ten (10) feet in width in any direction shall be irrigated with subsurface irrigation or
other means that produces no runoff or overspray.
31
(6) For non-residential projects with landscape areas of 1,000 sq. ft. or more, a private submeter(s) to
measure landscape water use shall be installed.
(c) At the time of final inspection, the permit applicant must provide the owner of the property with a certificate
of completion, certificate of installation, irrigation schedule and a schedule of landscape and irrigation
maintenance.
32
STAFF REPORT
RECEIVED
NOV 0 2 2017
CITY CLERK'S OFFICE
STAFF REPORT
PUBLIC WORKS DEPARTMENT
DATE: November 7, 2017
TO: Honorable Mayor and City Council
FROM: Daniel Wall, Director of Public WorkLt_Pd
Originator: Anthony Zarate, Administrative Analyst
OCT 2 3 2017
CITY ADM Ii4IS RATI10N
Or �L12I11
RE: An Ordinance of the City Council Proposing Minor Amendments to Chapter
25 of the Vernon Municipal Code
Recommendation
A. Find that approval of the proposed Ordinance is categorically exempt under California
Environmental Quality Act (CEQA) Guidelines Section 15308, which exempts those
actions taken by regulatory agencies, as authorized by state or local ordinance, to assure
the maintenance, restoration, enhancement, or protection of the environment where the
regulatory process involves procedures for protection of the environment. Here, the
ordinance involves the adoption of amendments to revise the City's Model Water Efficient
Landscape Ordinance as authorized and mandated by the Governor's Office and the
Department of Water Resources; and
B. Open a Public Hearing and receive any comments from the public regarding the proposed
amendments, and thereafter close the Public Hearing; and
C. Approve the first reading, and adopt at a subsequent meeting, an Ordinance amending
Chapter 25 of the Vernon Municipal Code (VMC), regarding the City's Model Water
Efficient Landscape Ordinance.
Background
On October 26, 2009, the City Council of the City of Vernon approved Ordinance No. 1161,
establishing water conservation measures. Among these measures, the Department of Water
Resources (DWR) required cities to adopt a Model Water Efficient Landscape Ordinance
(MWELO), or its equivalent, by January 1, 2010. Cities were given an option to adopt an ordinance
developed by another city that has received official compliance certification from the DWR or
adopt the MWELO by reference. The City of Vernon adopted the MWELO by reference on
October 26, 2009.
Page 1 of 2
Discussion
Governor Brown's Drought Executive Order of April 1, 2015, directed DWR to update the State's
Model Water Efficient Landscape Ordinance through expedited regulation, establishing even
stricter water conservation measures. Subsequently, the California Water Commission approved
the revised MWELO on July 15, 2015. Local agencies were given until December 1, 2015 to adopt
the MWELO or a Local Ordinance which must be at least as effective in conserving water as the
MWELO. If a city took no action with respect to adopting an ordinance by the established deadline,
DWR's MWELO would be adopted by statute on January 1, 2016.
The City's existing Ordinance (Ordinance No. 1161), makes reference to the MWELO adopted in
2009. However, significant revisions have been made which require the City to update its existing
Water Efficient Landscape Application and amend Chapter 25 of the VMC. If the proposed
Ordinance is adopted, staff will update the Water Efficient Landscape application accordingly.
With the revised MWELO, the size of landscapes subject to the proposed ordinance has been
reduced from 2,500 square feet to 500 square feet in new developments. The size threshold applies
to residential, commercial, industrial and institutional projects that requiring a permit, plan check
or design review.
The size threshold for existing landscapes that are being rehabilitated has not changed, remaining
at 2,500 square feet. Only existing landscapes that are included in a building or landscape permit,
plan check or design review are subject the proposed ordinance.
It is recommended that the City Council adopt the MWELO by reference, reducing the threshold
of landscapes in new developments subject to MWELO from 2,500 square feet to 500 square feet.
The proposed amendments are attached herewith and have been approved as to form by the City
Attorney's office.
Fiscal Impact
There is no fiscal impact to the City by adopting the proposed Ordinance.
Attachment
1. Public Hearing Notice
2. Proposed Ordinance
Page 2 of 2
City of Vernon
4305 Santa Fe Avenue
Vernon, CA 90058
(323) 583-8811
NOTICE OF PUBLIC HEARING REGARDING THE PROPOSED ORDINANCE TO AMIVIEND
CHAPTER 25, SECTION 25.112 OF THE VERNON MUNICIPAL CODE
The City of Vernon will conduct a Public Hearing, which you may attend.
PLACE: Vernon City Hall
City Council Chamber
4305 Santa Fe Avenue
Vernon, CA 90058
DATE & TEVIE: Tuesday, November 7, 2017 at 9:00 a.m. (or as soon thereafter as the matter can be
heard)
PURPOSE/SUBJECT: Consider the adoption of an Ordinance to amend the Vernon Municipal Code Chapter
25, Water, regarding the State Model Landscaping Ordinance and repealing all prior
ordinances and part of ordinances in conflict therewith.
DOCUMENTS Notice is hereby given that a hard copy of the proposed ordinance will be available for
public review during normal business hours in the City Clerk Department, located at
4305 Santa Fe Avenue, Vernon, California, between the hours of 7:00 a.m. and
FOR REVIEW: 5:30 p.m. Monday through Thursday.
Please send your comments or questions to:
Daniel Wall, Director of Public Works
City of Vernon
4305 Santa Fe Avenue, Vernon, CA 90058
(323) 583-8811 Ext. 305 Email: dwallgci.vemon.ca.us
PROPOSED CEQA FINDING: Staff will recommend that the City Council find that this action is not subject to the
California Environmental Quality Act (CEQA) as this ordinance is not considered a
"project" under CEQA which is defined as a whole of an action directly undertaken
by a public agency which has the potential for resulting in either a direct physical
change in the environment or a reasonable foreseeable indirect physical change in the
environment, Cal. Pub. Res. Code Section 21065. Under the proposed ordinance, no
such activity is being undertaken. Even if the ordinance were to be considered a
"project" under CEQA, which is not the case, the ordinance would be covered by the
general rule set forth in CEQA Guidelines Section 15061(b)(3) which provides that
CEQA applies only to projects which have the potential for causing a significant
effect on the environment. Where it can be seen with certainty that there is no
possibility that the activity in question may have a significant effect on the
environment, the activity is not subject to CEQA. Here, the ordinance involves the
adoption of an amendment to revise the state -mandated Model Water Efficient
Landscape Ordinance through expedited regulation and will not have any effect on
the environment.
If you challenge the adoption of an Ordinance to amend Chapter 25, State Model Landscaping Ordinance of the Vernon
Municipal Code and repealing all prior ordinances and part of ordinances in conflict therewith or any provision thereof
in court, you may be limited to raising only those issues you or someone else raised at the hearing described in this
notice or in written correspondence delivered to the City of Vernon at, or prior to, the meeting.
Americans with Disabilities Act (ADA): In compliance with ADA, if you need special assistance to participate in the
meeting, please contact the Office of the City Clerk at (323) 583-8811 ext. 546.
The hearing may be continued or adjourned or cancelled and rescheduled to a stated time and place without
further notice of a public hearing.
Dated:
Maria E. Ayala, City Clerk
ORDINANCE NO. 1248
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
VERNON AMENDING CHAPTER 25 OF THE VERNON
MUNICIPAL CODE AND ADOPTING BY REFERENCE THE
DEPARTMENT OF WATER RESOURCES STATE MODEL
LANDSCAPING ORDINANCE; AND REPEALING ALL
ORDINANCES OR PARTS OF ORDINANCES IN CONFLICT
THEREWITH
WHEREAS, the City of Vernon (the "City") is a municipal
corporation and a chartered city of the State of California organized
and existing under its Charter and the Constitution of the State of
California; and
WHEREAS, on October 26, 2009, the City Council of the City
of Vernon adopted Ordinance No. 1161 amending the code of the City of
Vernon by amending Sections 25.100, 25.101, 25.102, 25.103, 25.104,
25.105, 25.106(b), 25.107(a); adding a new Section 25.112; and
adopting by reference the Department of Water Resources State Model
Landscaping Ordinance (the "Model Landscaping Ordinance"); and
WHEREAS, Governor Brown's drought executive order of
April 1, 2015, directed the Department of Water Resources ("DWR") to
update the State's Model Water Efficient Landscape Ordinance through
expedited regulation, establishing even stricter water conservation
measures; and
WHEREAS, the California Water Commission approved the
revised Model Landscaping Ordinance on July 15, 2015, and gave local
agencies until December 1, 2015, to adopt the Model Landscaping
Ordinance or a Local Ordinance which must be at least as effective in
conserving water as the Model Landscaping Ordinance.
WHEREAS, if a City took no action with respect to adopting
an ordinance by the established deadline, the DWR's Model Landscaping
Ordinance would be adopted by statute on January 1, 2016; and
WHEREAS, significant revisions have been made which require
the City to update its existing Water Efficient Landscape Application
and amend Chapter 25 of the Vernon Municipal Code; and
WHEREAS, with the revised Model Landscaping Ordinance, the
size of landscapes subject to the proposed ordinance has been reduced
from 2,500 square feet to 500 square feet in new developments and the
size threshold applies to residential, commercial, industrial and
institutional projects that require a permit, plan check or design
review; and
WHEREAS, the size threshold for existing landscapes that
are being rehabilitated has not changed, remaining at 2,500 square
feet; only existing landscapes that are included in a building or
landscape permit, plan check or design review are subject to the
proposed ordinance; and
WHEREAS, by memorandum dated November 7, 2017, the Director
of Public Works has recommended that the City adopt by reference the
Model Water Efficient Landscape Ordinance of the Department of Water
Resources reducing the threshold of landscapes in new developments
subject to the Model Landscaping Ordinance from 2,500 square feet to
500 square feet; and
WHEREAS, a duly -noticed public hearing has been held to
consider the proposed ordinance changes, and public testimony has
been received and considered; and
WHEREAS, the City Council finds and determines that it is
in the interests of the public health, safety and welfare of the City
of Vernon, its residents, businesses and employees to implement the
recommendations of the Director of Public Works, as set forth in this
- 2 -
Ordinance.
THE CITY COUNCIL OF THE CITY OF VERNON HEREBY ORDAINS:
SECTION 1: The City Council of the City of Vernon hereby
finds and determines that all of the foregoing recitals are true and
correct.
SECTION 2: The City Council of the City of Vernon hereby
amends Chapter 25 of the Vernon Municipal Code and adopts by
reference the Model Water Efficient Landscape Ordinance of the
Department of Water Resources (the "Model Ordinance") as set forth in
Exhibit A which is attached hereto and incorporated by reference.
Three (3) copies of the Model Ordinance so adopted shall be filed and
kept on file for use and examination by the public in the office of
the City Clerk.
SECTION 3: Pursuant to the California Environmental
Quality Act (Public Resources Code Section 21000 et seq.) ("CEQA")
and the State CEQA Guidelines (California Code of Regulations, Title
14, Section 15000 et seq.), the City Council of the City of Vernon
hereby finds that adoption of this Ordinance is categorically exempt
from CEQA review under State CEQA Guidelines Section 15308, because
it has the effect of limiting rather than authorizing the use of
water supplies and resources, and constitutes an action by the City
to assure the maintenance, enhancement, and protection of the
environment through the conservation of water resources. Therefore,
the adoption of this Ordinance is exempt from CEQA.
SECTION 4: Any ordinance, part of an ordinance, or code
section in conflict with this Ordinance is hereby repealed.
SECTION 5: Severability. If any chapter, article,
section, subsection, subdivision, paragraph, sentence, clause,
- 3 -
phrase, or word in this Ordinance or any part thereof is for any
reason held to be unconstitutional or invalid or ineffective by any
court of competent jurisdiction, such decision shall not affect the
validity or effectiveness of the remaining portions of this Ordinance
or any part thereof. The City Council hereby declares that it would
have adopted this Ordinance and each chapter, article, section,
subsection, subdivision, paragraph, sentence, clause or phrase
thereof, irrespective of the fact that any one or more chapters,
articles, sections, subsections, subdivisions, paragraphs, sentences,
clauses, phrases or words be declared unconstitutional, or invalid,
or ineffective.
SECTION 6: Book of Ordinances. The City Clerk, or Deputy
City Clerk, shall attest and certify to the adoption of this
Ordinance and shall cause this Ordinance and the City Clerk's, or
Deputy City Clerk's, certification to be entered in the Book of
Ordinances of the Council of this City. The City Clerk, or Deputy
City Clerk, shall cause this ordinance to be published or posted as
required by law.
- 4 -
SECTION 7: Effective Date
This Ordinance shall go into
effect and be in full force and effect at 12:01 a.m. on the thirty-
first (31st) day after its passage.
APPROVED AND ADOPTED this 5th day of December, 2017.
ATTEST:
City Clerk / Deputy City Clerk
APPROVED AS TO FORM:
Brian Byun,
Senior Deputy ity Attorney
- 5 -
Name:
Title: Mayor / Mayor Pro-Tem
STATE OF CALIFORNIA )
) ss
COUNTY OF LOS ANGELES )
I, , City Clerk / Deputy City Clerk of the City
of Vernon, do hereby certify that the foregoing Ordinance, being
Ordinance No. 1248 was duly and regularly introduced at a regular
meeting of the City Council of the City of Vernon, held in the City
of Vernon on Tuesday, November 7, 2017, and thereafter adopted at a
meeting of said City Council held on Tuesday, December 5, 2017, by
the following vote:
AYES: Councilmembers:
NOES: Councilmembers:
ABSENT: Councilmembers:
And thereafter was duly signed by the Mayor or Mayor Pro-Tem of
the City of Vernon.
Executed this day of December, 2017, at Vernon, California.
(SEAL)
City Clerk / Deputy City Clerk
- 6 -
EXHIBIT A
California Code of Regulations
Title 23. Waters
Division 2. Department of Water Resources
Chapter 2.7. Model Water Efficient Landscape Ordinance
§ 490. Purpose.
(a) The State Legislature has found:
(1) that the waters of the state are of limited supply and are subject to ever increasing demands;
(2) that the continuation of California's economic prosperity is dependent on the availability of
adequate supplies of water for future uses;
(3) that it is the policy of the State to promote the conservation and efficient use of water and to
prevent the waste of this valuable resource;
(4) that landscapes are essential to the quality of life in California by providing areas for active and
passive recreation and as an enhancement to the environment by cleaning air and water, preventing
erosion, offering fire protection, and replacing ecosystems lost to development;
(5) that landscape design, installation, maintenance and management can and should be water
efficient; and
(6) that Section 2 of Article X of the California Constitution specifies that the right to use water is
limited to the amount reasonably required for the beneficial use to be served and the right does not
and shall not extend to waste or unreasonable method of use.
(b) Consistent with the legislative findings, the purpose of this model ordinance is to:
(1) promote the values and benefits of landscaping practices that integrate and go beyond the
conservation and efficient use of water;
(2) establish a structure for planning, designing, installing, maintaining and managing water efficient
landscapes in new construction and rehabilitated projects by encouraging the use of a watershed
approach that requires cross -sector collaboration of industry, government and property owners to
achieve the many benefits possible;
(3) establish provisions for water management practices and water waste prevention for existing
landscapes;
(4) use water efficiently without waste by setting a Maximum Applied Water Allowance as an upper
limit for water use and reduce water use to the lowest practical amount;
(5) promote the benefits of consistent landscape ordinances with neighboring local and regional
agencies;
(6) encourage local agencies and water purveyors to use economic incentives that promote the
efficient use of water, such as implementing a tiered -rate structure; and
(7) encourage local agencies to designate the necessary authority that implements and enforces the
provisions of the Model Water Efficient Landscape Ordinance or its local landscape ordinance.
(c) Landscapes that are planned, designed, installed, managed and maintained with the watershed based
approach can improve California's environmental conditions and provide benefits and realize
sustainability goals. Such landscapes will make the urban environment resilient in the face of climatic
extremes. Consistent with the legislative findings and purpose of the Ordinance, conditions in the urban
setting will be improved by:
(1) Creating the conditions to support life in the soil by reducing compaction, incorporating organic
matter that increases water retention, and promoting productive plant growth that leads to more
carbon storage, oxygen production, shade, habitat and esthetic benefits.
(2) Minimizing energy use by reducing irrigation water requirements, reducing reliance on
petroleum based fertilizers and pesticides, and planting climate appropriate shade trees in urban
areas.
1
(3) Conserving water by capturing and reusing rainwater and graywater wherever possible and
selecting climate appropriate plants that need minimal supplemental water after establishment.
(4) Protecting air and water quality by reducing power equipment use and landfill disposal trips,
selecting recycled and locally sourced materials, and using compost, mulch and efficient irrigation
equipment to prevent erosion.
(5) Protecting existing habitat and creating new habitat by choosing local native plants, climate
adapted non -natives and avoiding invasive plants. Utilizing integrated pest management with least
toxic methods as the first course of action.
Note: Authority cited: Section 65593, Government Code. Reference: Sections 65591, 65593 and 65596,
Government Code.
§ 490.1. Applicability.
(a) After December 1, 2015, and consistent with Executive Order No. B-29-15, this ordinance shall
apply to all of the following landscape projects:
(1) new construction projects with an aggregate landscape area equal to or greater than 500 square
feet requiring a building or landscape permit, plan check or design review;
(2) rehabilitated landscape projects with an aggregate landscape area equal to or greater than 2,500
square feet requiring a building or landscape permit, plan check, or design review;
(3) existing landscapes limited to Sections 493, 493.1 and 493.2; and
(4) cemeteries. Recognizing the special landscape management needs of cemeteries, new and
rehabilitated cemeteries are limited to Sections 492.4, 492.11, and 492.12; and existing cemeteries
are limited to Sections 493, 493. 1, and 493.2.
(b) For local land use agencies working together to develop a regional water efficient landscape
ordinance, the reporting requirements of this ordinance shall become effective December 1, 2015 and
the remainder of this ordinance shall be effective no later than February 1, 2016.
(c) Any project with an aggregate landscape area of 2,500 square feet or less may comply with the
performance requirements of this ordinance or conform to the prescriptive measures contained in Appendix
D.
(d) For projects using treated or untreated graywater or rainwater captured on site, any lot or parcel within
the project that has less than 2500 sq. ft. of landscape and meets the lot or parcel's landscape water
requirement (Estimated Total Water Use) entirely with treated or untreated graywater or through stored
rainwater captured on site is subject only to Appendix D section (5).
(e) This ordinance does not apply to:
(1) registered local, state or federal historical sites;
(2) ecological restoration projects that do not require a permanent irrigation system;
(3) mined -land reclamation projects that do not require a permanent irrigation system; or
(4) existing plant collections, as part of botanical gardens and arboretums open to the public.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 491. Definitions.
The terms used in this ordinance have the meaning set forth below:
(a) "applied water" means the portion of water supplied by the irrigation system to the landscape.
(b) "automatic irrigation controller" means a timing device used to remotely control valves that operate
an irrigation system. Automatic irrigation controllers are able to self -adjust and schedule irrigation
events using either evapotranspiration (weather -based) or soil moisture data.
(c) "backflow prevention device" means a safety device used to prevent pollution or contamination of
the water supply due to the reverse flow of water from the irrigation system.
(d) "Certificate of Completion" means the document required under Section 492.9.
2
(e) "certified irrigation designer" means a person certified to design irrigation systems by an accredited
academic institution, a professional trade organization or other program such as the US Environmental
Protection Agency's WaterSense irrigation designer certification program and Irrigation Association's
Certified Irrigation Designer program.
(0 "certified landscape irrigation auditor" means a person certified to perform landscape irrigation
audits by an accredited academic institution, a professional trade organization or other program such as
the US Environmental Protection Agency's WaterSense irrigation auditor certification program and
Irrigation Association's Certified Landscape Irrigation Auditor program.
(g) "check valve" or "anti -drain valve" means a valve located under a sprinkler head, or other location in
the irrigation system, to hold water in the system to prevent drainage from sprinkler heads when the
sprinkler is off.
(h) "common interest developments" means community apartment projects, condominium projects,
planned developments, and stock cooperatives per Civil Code Section 1351.
(i) "compost" means the safe and stable product of controlled biologic decomposition of organic
materials that is beneficial to plant growth.
0) "conversion factor (0.62)" means the number that converts acre -inches per acre per year to gallons
per square foot per year.
(k) "distribution uniformity" means the measure of the uniformity of irrigation water over a defined
area.
(1) "drip irrigation" means any non -spray low volume irrigation system utilizing emission devices with a
flow rate measured in gallons per hour. Low volume irrigation systems are specifically designed to
apply small volumes of water slowly at or near the root zone of plants.
(m) "ecological restoration project" means a project where the site is intentionally altered to establish a
defined, indigenous, historic ecosystem.
(n) "effective precipitation" or "usable rainfall" (Eppt) means the portion of total precipitation which
becomes available for plant growth.
(o) "emitter" means a drip irrigation emission device that delivers water slowly from the system to the
soil.
(p) "established landscape" means the point at which plants in the landscape have developed significant
root growth into the soil. Typically, most plants are established after one or two years of growth.
(q) "establishment period of the plants" means the first year after installing the plant in the landscape or
the first two years if irrigation will be terminated after establishment. Typically, most plants are
established after one or two years of growth. Native habitat mitigation areas and trees may need three to
five years for establishment.
(r) "Estimated Total Water Use" (ETWU) means the total water used for the landscape as described in
Section 492.4.
(s) "ET adjustment factor" (ETAF) means a factor of 0.55 for residential areas and 0.45 for non-
residential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and
irrigation efficiency, two major influences upon the amount of water that needs to be applied to the
landscape. The ETAF for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed
1.0. The ETAF for existing non -rehabilitated landscapes is 0.8.
(t) "evapotranspiration rate" means the quantity of water evaporated from adjacent soil and other
surfaces and transpired by plants during a specified time.
(u) "flow rate" means the rate at which water flows through pipes, valves and emission devices,
measured in gallons per minute, gallons per hour, or cubic feet per second.
(v) "flow sensor" means an inline device installed at the supply point of the irrigation system that
produces a repeatable signal proportional to flow rate. Flow sensors must be connected to an automatic
irrigation controller, or flow monitor capable of receiving flow signals and operating master valves. This
combination flow sensor/controller may also function as a landscape water meter or submeter.
3
(w) "friable" means a soil condition that is easily crumbled or loosely compacted down to a minimum
depth per planting material requirements, whereby the root structure of newly planted material will be
allowed to spread unimpeded.
(x) "Fuel Modification Plan Guideline" means guidelines from a local fire authority to assist residents
and businesses that are developing land or building structures in a fire hazard severity zone.
(y) "graywater" means untreated wastewater that has not been contaminated by any toilet discharge, has
not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat
from contamination by unhealthful processing, manufacturing, or operating wastes. "Graywater"
includes, but is not limited to, wastewater from bathtubs, showers, bathroom washbasins, clothes
washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or
dishwashers. Health and Safety Code Section 17922.12.
(z) "hardscapes" means any durable material (pervious and non -pervious).
(aa) "hydrozone" means a portion of the landscaped area having plants with similar water needs and
rooting depth. A hydrozone may be irrigated or non -irrigated.
(bb) "infiltration rate" means the rate of water entry into the soil expressed as a depth of water per unit
of time (e.g., inches per hour).
(cc) "invasive plant species" means species of plants not historically found in California that spread
outside cultivated areas and can damage environmental or economic resources. Invasive species may be
regulated by county agricultural agencies as noxious species. Lists of invasive plants are maintained at
the California Invasive Plant Inventory and USDA invasive and noxious weeds database.
(dd) "irrigation audit" means an in-depth evaluation of the performance of an irrigation system conducted
by a Certified Landscape Irrigation Auditor. An irrigation audit includes, but is not limited to: inspection,
system tune-up, system test with distribution uniformity or emission uniformity, reporting overspray or
runoff that causes overland flow, and preparation of an irrigation schedule. The audit must be conducted
in a manner consistent with the Irrigation Association's Landscape Irrigation Auditor Certification
program or other U.S. Environmental Protection Agency "Watersense" labeled auditing program.
(ee) "irrigation efficiency" (IE) means the measurement of the amount of water beneficially used divided
by the amount of water applied. Irrigation efficiency is derived from measurements and estimates of
irrigation system characteristics and management practices. The irrigation efficiency for purposes of this
ordinance are 0.75 for overhead spray devices and 0.81 for drip systems.
(ff) "irrigation survey" means an evaluation of an irrigation system that is less detailed than an irrigation
audit. An irrigation survey includes, but is not limited to: inspection, system test, and written
recommendations to improve performance of the irrigation system.
(gg) "irrigation water use analysis" means an analysis of water use data based on meter readings and
billing data.
(hh) "landscape architect" means a person who holds a license to practice landscape architecture in the
state of California Business and Professions Code, Section 5615.
(ii) "landscape area" means all the planting areas, turf areas, and water features in a landscape design
plan subject to the Maximum Applied Water Allowance calculation. The landscape area does not
include footprints of buildings or structures, sidewalks, driveways, parking lots, decks, patios, gravel or
stone walks, other pervious or non -pervious hardscapes, and other non -irrigated areas designated for
non -development (e.g., open spaces and existing native vegetation).
Oj) "landscape contractor" means a person licensed by the state of California to construct, maintain,
repair, install, or subcontract the development of landscape systems.
(kk) "Landscape Documentation Package" means the documents required under Section 492.3.
(11) "landscape project" means total area of landscape in a project as defined in "landscape area" for the
purposes of this ordinance, meeting requirements under Section 490.1.
(mm) "landscape water meter" means an inline device installed at the irrigation supply point that
measures the flow of water into the irrigation system and is connected to a totalizer to record water use.
M
(nn) "lateral line" means the water delivery pipeline that supplies water to the emitters or sprinklers from
the valve.
(oo) "local agency" means a city or county, including a charter city or charter county, that is responsible
for adopting and implementing the ordinance. The local agency is also responsible for the enforcement
of this ordinance, including but not limited to, approval of a permit and plan check or design review of a
project.
(pp) "local water purveyor" means any entity, including a public agency, city, county, or private water
company that provides retail water service.
(qq) "low volume irrigation" means the application of irrigation water at low pressure through a system
of tubing or lateral lines and low -volume emitters such as drip, drip lines, and bubblers. Low volume
irrigation systems are specifically designed to apply small volumes of water slowly at or near the root
zone of plants.
(rr) "main line" means the pressurized pipeline that delivers water from the water source to the valve or
outlet.
(ss) "master shut-off valve" is an automatic valve installed at the irrigation supply point which controls
water flow into the irrigation system. When this valve is closed water will not be supplied to the
irrigation system. A master valve will greatly reduce any water loss due to a leaky station valve.
(tt) "Maximum Applied Water Allowance" (MAWA) means the upper limit of annual applied water for
the established landscaped area as specified in Section 492.4. It is based upon the area's reference
evapotranspiration, the ET Adjustment Factor, and the size of the landscape area. The Estimated Total
Water Use shall not exceed the Maximum Applied Water Allowance. Special Landscape Areas,
including recreation areas, areas permanently and solely dedicated to edible plants such as orchards and
vegetable gardens, and areas irrigated with recycled water are subject to the MAWA with an ETAF not
to exceed 1.0. MAWA = (ETo) (0.62) [(ETAF x LA) + ((I-ETAF)x SLA)]
(uu) "median" is an area between opposing lanes of traffic that may be unplanted or planted with trees,
shrubs, perennials, and ornamental grasses.
(vv)"microclimate" means the climate of a small, specific area that may contrast with the climate of the
overall landscape area due to factors such as wind, sun exposure, plant density, or proximity to reflective
surfaces.
(ww) "mined -land reclamation projects" means any surface mining operation with a reclamation plan
approved in accordance with the Surface Mining and Reclamation Act of 1975.
(xx) "mulch" means any organic material such as leaves, bark, straw, compost, or inorganic mineral
materials such as rocks, gravel, or decomposed granite left loose and applied to the soil surface for the
beneficial purposes of reducing evaporation, suppressing weeds, moderating soil temperature, and
preventing soil erosion.
(yy) "new construction" means, for the purposes of this ordinance, a new building with a landscape or
other new landscape, such as a park, playground, or greenbelt without an associated building.
(zz) "non-residential landscape" means landscapes in commercial, institutional, industrial and public
settings that may have areas designated for recreation or public assembly. It also includes portions of
common areas of common interest developments with designated recreational areas.
(aaa) "operating pressure" means the pressure at which the parts of an irrigation system are designed by
the manufacturer to operate.
(bbb) "overhead sprinkler irrigation systems" or "overhead spray irrigation systems" means systems that
deliver water through the air (e.g., spray heads and rotors).
(ccc) "overspray" means the irrigation water which is delivered beyond the target area.
(ddd)"parkway" means the area between a sidewalk and the curb or traffic lane. It may be planted or
unplanted, and with or without pedestrian egress.
(eee) "permit" means an authorizing document issued by local agencies for new construction or
rehabilitated landscapes.
5
(fff) "pervious" means any surface or material that allows the passage of water through the material and
into the underlying soil.
(ggg) "plant factor" or "plant water use factor" is a factor, when multiplied by ETo, estimates the
amount of water needed by plants. For purposes of this ordinance, the plant factor range for very low
water use plants is 0 to 0.1, the plant factor range for low water use plants is 0.1 to 0.3, the plant factor
range for moderate water use plants is 0.4 to 0.6, and the plant factor range for high water use plants is
0.7 to 1.0. Plant factors cited in this ordinance are derived from the publication "Water Use
Classification of Landscape Species". Plant factors may also be obtained from horticultural researchers
from academic institutions or professional associations as approved by the California Department of
Water Resources (DWR).
(hhh) "project applicant" means the individual or entity submitting a Landscape Documentation
Package required under Section 492.3, to request a permit, plan check, or design review from the local
agency. A project applicant may be the property owner or his or her designee.
(iii) "rain sensor" or "rain sensing shutoff device" means a component which automatically suspends an
irrigation event when it rains.
(jjj) "record drawing" or "as-builts" means a set of reproducible drawings which show significant
changes in the work made during construction and which are usually based on drawings marked up in
the field and other data furnished by the contractor.
(kkk) "recreational area" means areas, excluding private single family residential areas, designated for
active play, recreation or public assembly in parks, sports fields, picnic grounds, amphitheaters or golf
course tees, fairways, roughs, surrounds and greens.
(111) "recycled water," "reclaimed water," or "treated sewage effluent water" means treated or recycled
waste water of a quality suitable for nonpotable uses such as landscape irrigation and water features.
This water is not intended for human consumption.
(mmm) "reference evapotranspiration" or "ETo" means a standard measurement of environmental
parameters which affect the water use of plants. ETo is expressed in inches per day, month, or year as
represented in Appendix A, and is an estimate of the evapotranspiration of a large field of four- to
seven-inch tall, cool -season grass that is well watered. Reference evapotranspiration is used as the basis
of determining the Maximum Applied Water Allowances so that regional differences in climate can be
accommodated.
(nnn) "Regional Water Efficient Landscape Ordinance" means a local Ordinance adopted by two or
more local agencies, water suppliers and other stakeholders for implementing a consistent set of
landscape provisions throughout a geographical region. Regional ordinances are strongly encouraged to
provide a consistent framework for the landscape industry and applicants to adhere to.
(000) "rehabilitated landscape" means any relandscaping project that requires a permit, plan check, or
design review, meets the requirements of Section 490.1, and the modified landscape area is equal to or
greater than 2,500 square feet.
(ppp) "residential landscape" means landscapes surrounding single or multifamily homes.
(qqq) "run off' means water which is not absorbed by the soil or landscape to which it is applied and
flows from the landscape area. For example, run off may result from water that is applied at too great a
rate (application rate exceeds infiltration rate) or when there is a slope.
(rrr) "soil moisture sensing device" or "soil moisture sensor" means a device that measures the amount
of water in the soil. The device may also suspend or initiate an irrigation event.
(sss) "soil texture" means the classification of soil based on its percentage of sand, silt, and clay.
(ttt) "Special Landscape Area" (SLA) means an area of the landscape dedicated solely to edible plants,
recreational areas, areas irrigated with recycled water, or water features using recycled water.
(uuu) "sprinkler head" or "spray head" means a device which delivers water through a nozzle.
(vvv) "static water pressure" means the pipeline or municipal water supply pressure when water is not
flowing.
(www) "station" means an area served by one valve or by a set of valves that operate simultaneously.
(xxx) "swing joint" means an irrigation component that provides a flexible, leak -free connection
between the emission device and lateral pipeline to allow movement in any direction and to prevent
equipment damage.
(yyy) "submeter" means a metering device to measure water applied to the landscape that is installed
after the primary utility water meter.
(zzz) "turf' means a ground cover surface of mowed grass. Annual bluegrass, Kentucky bluegrass,
Perennial ryegrass, Red fescue, and Tall fescue are cool -season grasses. Bermudagrass, Kikuyugrass,
Seashore Paspalum, St. Augustinegrass, Zoysiagrass, and Buffalo grass are warm -season grasses.
(aaaa) "valve" means a device used to control the flow of water in the irrigation system.
(bbbb) "water conserving plant species" means a plant species identified as having a very low or low
plant factor.
(cccc) "water feature" means a design element where open water performs an aesthetic or recreational
function. Water features include ponds, lakes, waterfalls, fountains, artificial streams, spas, and
swimming pools (where water is artificially supplied). The surface area of water features is included in
the high water use hydrozone of the landscape area. Constructed wetlands used for on -site wastewater
treatment or stormwater best management practices that are not irrigated and used solely for water
treatment or stormwater retention are not water features and, therefore, are not subject to the water
budget calculation.
(dddd) "watering window" means the time of day irrigation is allowed.
(eeee) "WUCOLS" means the Water Use Classification of Landscape Species published by the
University of California Cooperative Extension and the Department of Water Resources.
Note: Authority cited: Section 65595, Government Code. Reference: Sections 65592 and 65596,
Government Code.
§ 492. Provisions for New Construction or Rehabilitated Landscapes.
(a) A local agency may designate by mutual agreement, another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.4. Water Efficient Landscape Worksheet.
(a) A project applicant shall complete the Water Efficient Landscape Worksheet in Appendix B which
contains information on the plant factor, irrigation method, irrigation efficiency, and area associated
with each hydrozone. Calculations are then made to show that the evapotranspiration adjustment factor
(ETAF) for the landscape project does not exceed a factor of 0.55 for residential areas and 0.45 for non-
residential areas, exclusive of Special Landscape Areas. The ETAF for a landscape project is based on
the plant factors and irrigation methods selected. The Maximum Applied Water Allowance is calculated
based on the maximum ETAF allowed (0.55 for residential areas and 0.45 for non-residential areas) and
expressed as annual gallons required. The Estimated Total Water Use (ETWU) is calculated based on
the plants used and irrigation method selected for the landscape design. ETWU must be below the
MAWA.
(1) In calculating the Maximum Applied Water Allowance and Estimated Total Water Use, a project
applicant shall use the ETo values from the Reference Evapotranspiration Table in Appendix A. For
geographic areas not covered in Appendix A, use data from other cities located nearby in the same
reference evapotranspiration zone, as found in the CIMIS Reference Evapotranspiration Zones Map,
Department of Water Resources, 1999.
(b) Water budget calculations shall adhere to the following requirements:
7
(1) The plant factor used shall be from WUCOLS or from horticultural researchers with academic
institutions or professional associations as approved by the California Department of Water
Resources (DWR). The plant factor ranges from 0 to 0.1 for very low water using plants, 0.1 to 0.3
for low water use plants, from 0.4 to 0.6 for moderate water use plants, and from 0.7 to 1.0 for high
water use plants.
(2) All water features shall be included in the high water use hydrozone and temporarily irrigated
areas shall be included in the low water use hydrozone.
(3) All Special Landscape Areas shall be identified and their water use calculated as shown in
Appendix B.
(4) ETAF for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.5. Soil Management Report.
(a) In order to reduce runoff and encourage healthy plant growth, a soil management report shall be
completed by the project applicant, or his/her designee, as follows:
(1) Submit soil samples to a laboratory for analysis and recommendations.
(A) Soil sampling shall be conducted in accordance with laboratory protocol, including protocols
regarding adequate sampling depth for the intended plants.
(B) The soil analysis shall include:
1. soil texture;
2. infiltration rate determined by laboratory test or soil texture infiltration rate table;
3. pH;
4. total soluble salts;
5. sodium;
6. percent organic matter; and
7. recommendations.
(C) In projects with multiple landscape installations (i.e. production home developments) a soil
sampling rate of 1 in 7 lots or approximately 15% will satisfy this requirement. Large landscape projects
shall sample at a rate equivalent to 1 in 7 lots.
(2) The project applicant, or his/her designee, shall comply with one of the following:
(A) If significant mass grading is not planned, the soil analysis report shall be submitted to the local
agency as part of the Landscape Documentation Package; or
(B) If significant mass grading is planned, the soil analysis report shall be submitted to the local agency as
part of the Certificate of Completion.
(3) The soil analysis report shall be made available, in a timely manner, to the professionals
preparing the landscape design plans and irrigation design plans to make any necessary adjustments
to the design plans.
(4) The project applicant, or his/her designee, shall submit documentation verifying implementation
of soil analysis report recommendations to the local agency with Certificate of Completion.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.6. Landscape Design Plan.
(a) For the efficient use of water, a landscape shall be carefully designed and planned for the intended
function of the project. A landscape design plan meeting the following design criteria shall be submitted
as part of the Landscape Documentation Package.
(1) Plant Material
(A) Any plant may be selected for the landscape, providing the Estimated Total Water Use in the
landscape area does not exceed the Maximum Applied Water Allowance. Methods to achieve water
efficiency shall include one or more of the following:
E
1. protection and preservation of native species and natural vegetation;
2. selection of water -conserving plant, tree and turf species, especially local native plants;
3. selection of plants based on local climate suitability, disease and pest resistance;
4. selection of trees based on applicable local tree ordinances or tree shading guidelines, and
size at maturity as appropriate for the planting area; and
5. selection of plants from local and regional landscape program plant lists.
6. selection of plants from local Fuel Modification Plan Guidelines.
(B) Each hydrozone shall have plant materials with similar water use, with the exception of hydrozones
with plants of mixed water use, as specified in Section 492.7(a)(2)(D).
(C) Plants shall be selected and planted appropriately based upon their adaptability to the climatic,
geologic, and topographical conditions of the project site. Methods to achieve water efficiency shall
include one or more of the following:
1. use the Sunset Western Climate Zone System which takes into account temperature,
humidity, elevation, terrain, latitude, and varying degrees of continental and marine influence
on local climate;
2. recognize the horticultural attributes of plants (i.e., mature plant size, invasive surface
roots) to minimize damage to property or infrastructure [e.g., buildings, sidewalks, power
lines]; allow for adequate soil volume for healthy root growth; and
3. consider the solar orientation for plant placement to maximize summer shade and winter
solar gain.
(D) Turf is not allowed on slopes greater than 25% where the toe of the slope is adjacent to an
impermeable hardscape and where 25% means 1 foot of vertical elevation change for every 4 feet of
horizontal length (rise divided by run x 100 = slope percent).
(E) High water use plants, characterized by a plant factor of 0.7 to 1.0, are prohibited in street medians.
(F) A landscape design plan for projects in fire -prone areas shall address fire safety and prevention. A
defensible space or zone around a building or structure is required per Public Resources Code Section
4291(a) and (b). Avoid fire -prone plant materials and highly flammable mulches. Refer to the local Fuel
Modification Plan guidelines.
(G) The use of invasive plant species, such as those listed by the California Invasive Plant Council, is
strongly discouraged.
(H) The architectural guidelines of a common interest development, which include community apartment
projects, condominiums, planned developments, and stock cooperatives, shall not prohibit or include
conditions that have the effect of prohibiting the use of low-water use plants as a group.
(2) Water Features
(A) Recirculating water systems shall be used for water features.
(B) Where available, recycled water shall be used as a source for decorative water features.
(C) Surface area of a water feature shall be included in the high water use hydrozone area of the water
budget calculation.
(D) Pool and spa covers are highly recommended.
(3) Soil Preparation, Mulch and Amendments
(A) Prior to the planting of any materials, compacted soils shall be transformed to a friable condition. On
engineered slopes, only amended planting holes need meet this requirement.
(B) Soil amendments shall be incorporated according to recommendations of the soil report and what is
appropriate for the plants selected (see Section 492.5).
(C) For landscape installations, compost at a rate of a minimum of four cubic yards per 1,000 square feet
of permeable area shall be incorporated to a depth of six inches into the soil. Soils with greater than 6%
organic matter in the top 6 inches of soil are exempt from adding compost and tilling.
(D) A minimum three inch (3 ") layer of mulch shall be applied on all exposed soil surfaces of planting
areas except in turf areas, creeping or rooting groundcovers, or direct seeding applications where mulch is
contraindicated. To provide habitat for beneficial insects and other wildlife, up to 5 % of the landscape
area may be left without mulch. Designated insect habitat must be included in the landscape design plan
as such.
(E) Stabilizing mulching products shall be used on slopes that meet current engineering standards.
9
(F) The mulching portion of the seed/mulch slurry in hydro -seeded applications shall meet the mulching
requirement.
(G) Organic mulch materials made from recycled or post -consumer shall take precedence over inorganic
materials or virgin forest products unless the recycled post -consumer organic products are not locally
available. Organic mulches are not required where prohibited by local Fuel Modification Plan Guidelines
or other applicable local ordinances.
(b) The landscape design plan, at a minimum, shall:
(1) delineate and label each hydrozone by number, letter, or other method;
(2) identify each hydrozone as low, moderate, high water, or mixed water use. Temporarily irrigated
areas of the landscape shall be included in the low water use hydrozone for the water budget
calculation;
(3) identify recreational areas;
(4) identify areas permanently and solely dedicated to edible plants;
(5) identify areas irrigated with recycled water;
(6) identify type of mulch and application depth;
(7) identify soil amendments, type, and quantity;
(8) identify type and surface area of water features;
(9) identify hardscapes (pervious and non -pervious);
(10) identify location, installation details, and 24-hour retention or infiltration capacity of any
applicable stormwater best management practices that encourage on -site retention and infiltration of
stormwater. Project applicants shall refer to the local agency or regional Water Quality Control
Board for information on any applicable stormwater technical requirements. Stormwater best
management practices are encouraged in the landscape design plan and examples are provided in
Section 492.16.
(11) identify any applicable rain harvesting or catchment technologies discussed in Section 492.16
and their 24-hour retention or infiltration capacity;
(12) identify any applicable graywater discharge piping, system components and area(s) of
distribution;
(13) contain the following statement: "I have complied with the criteria of the ordinance and applied
them for the efficient use of water in the landscape design plan"; and
(14) bear the signature of a licensed landscape architect, licensed landscape contractor, or any other
person authorized to design a landscape. (See Sections 5500.1, 5615, 5641, 5641.1, 5641.2, 5641.3,
5641.4, 5641.5, 5641.6, 6701, 7027.5 of the Business and Professions Code, Section 832.27 of Title
16 of the California Code of Regulations, and Section 6721 of the Food and Agriculture Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code;
and Section 1351, Civil Code.
§ 492.7. Irrigation Design Plan.
(a) This section applies to landscaped areas requiring permanent irrigation, not areas that require
temporary irrigation solely for the plant establishment period. For the efficient use of water, an irrigation
system shall meet all the requirements listed in this section and the manufacturers' recommendations.
The irrigation system and its related components shall be planned and designed to allow for proper
installation, management, and maintenance. An irrigation design plan meeting the following design
criteria shall be submitted as part of the Landscape Documentation Package.
(1) System
(A) Landscape water meters, defined as either a dedicated water service meter or private submeter, shall
be installed for all non-residential irrigated landscapes of 1,000 sq. ft. but not more than 5,000 sq.ft. (the
level at which Water Code 535 applies) and residential irrigated landscapes of 5,000 sq. ft. or greater. A
landscape water meter may be either:
ift
1. a customer service meter dedicated to landscape use provided by the local water
purveyor; or
2. a privately owned meter or submeter.
(B) Automatic irrigation controllers utilizing either evapotranspiration or soil moisture sensor data
utilizing non-volatile memory shall be required for irrigation scheduling in all irrigation systems.
(C) If the water pressure is below or exceeds the recommended pressure of the specified irrigation
devices, the installation of a pressure regulating device is required to ensure that the dynamic pressure at
each emission device is within the manufacturer's recommended pressure range for optimal performance.
1. If the static pressure is above or below the required dynamic pressure of the irrigation
system, pressure -regulating devices such as inline pressure regulators, booster pumps, or
other devices shall be installed to meet the required dynamic pressure of the irrigation
system.
2. Static water pressure, dynamic or operating pressure, and flow reading of the water supply
shall be measured at the point of connection. These pressure and flow measurements shall be
conducted at the design stage. If the measurements are not available at the design stage, the
measurements shall be conducted at installation.
(D) Sensors (rain, freeze, wind, etc.), either integral or auxiliary, that suspend or alter irrigation operation
during unfavorable weather conditions shall be required on all irrigation systems, as appropriate for local
climatic conditions. Irrigation should be avoided during windy or freezing weather or during rain.
(E) Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) shall be required, as close
as possible to the point of connection of the water supply, to minimize water loss in case of an emergency
(such as a main line break) or routine repair.
(F) Backflow prevention devices shall be required to protect the water supply from contamination by the
irrigation system. A project applicant shall refer to the applicable local agency code (i.e., public health)
for additional backflow prevention requirements.
(G) Flow sensors that detect high flow conditions created by system damage or malfunction are required
for all on non-residential landscapes and residential landscapes of 5000 sq. ft. or larger.
(H) Master shut-off valves are required on all projects except landscapes that make use of technologies
that allow for the individual control of sprinklers that are individually pressurized in a system equipped
with low pressure shut down features.
(I) The irrigation system shall be designed to prevent runoff, low head drainage, overspray, or other
similar conditions where irrigation water flows onto non -targeted areas, such as adjacent property, non -
irrigated areas, hardscapes, roadways, or structures.
(J) Relevant information from the soil management plan, such as soil type and infiltration rate, shall be
utilized when designing irrigation systems.
(K) The design of the irrigation system shall conform to the hydrozones of the landscape design plan.
(L) The irrigation system must be designed and installed to meet, at a minimum, the irrigation efficiency
criteria as described in Section 492.4 regarding the Maximum Applied Water Allowance.
(M) All irrigation emission devices must meet the requirements set in the American National Standards
Institute (ANSI) standard, American Society of Agricultural and Biological Engineers'/International Code
Council's (ASABE/ICC) 802-2014 "Landscape Irrigation Sprinkler and Emitter Standard, All sprinkler
heads installed in the landscape must document a distribution uniformity low quarter of 0.65 or higher
using the protocol defined in ASABE/ICC 802-2014.
(N) It is highly recommended that the project applicant or local agency inquire with the local water
purveyor about peak water operating demands (on the water supply system) or water restrictions that may
impact the effectiveness of the irrigation system.
(0) In mulched planting areas, the use of low volume irrigation is required to maximize water infiltration
into the root zone.
(P) Sprinkler heads and other emission devices shall have matched precipitation rates, unless otherwise
directed by the manufacturer's recommendations.
(Q) Head to head coverage is recommended. However, sprinkler spacing shall be designed to achieve the
highest possible distribution uniformity using the manufacturer's recommendations.
11
(R) Swing joints or other riser -protection components are required on all risers subject to damage that are
adjacent to hardscapes or in high traffic areas of turfgrass.
(S) Check valves or anti -drain valves are required on all sprinkler heads where low point drainage could
occur.
(T) Areas less than ten (10) feet in width in any direction shall be irrigated with subsurface irrigation or
other means that produces no runoff or overspray.
(U) Overhead irrigation shall not be permitted within 24 inches of any non -permeable surface. Allowable
irrigation within the setback from non -permeable surfaces may include drip, drip line, or other low flow
non -spray technology. The setback area may be planted or implanted. The surfacing of the setback may be
mulch, gravel, or other porous material. These restrictions may be modified if:
1. the landscape area is adjacent to permeable surfacing and no runoff occurs; or
2. the adjacent non -permeable surfaces are designed and constructed to drain entirely to
landscaping; or
3. the irrigation designer specifies an alternative design or technology, as part of the
Landscape Documentation Package and clearly demonstrates strict adherence to irrigation
system design criteria in Section 492.7 (a)(1)(I). Prevention of overspray and runoff must be
confirmed during the irrigation audit.
(V) Slopes greater than 25% shall not be irrigated with an irrigation system with an application rate
exceeding 0.75 inches per hour. This restriction may be modified if the landscape designer specifies an
alternative design or technology, as part of the Landscape Documentation Package, and clearly
demonstrates no runoff or erosion will occur. Prevention of runoff and erosion must be confirmed during
the irrigation audit.
(2) Hydrozone
(A) Each valve shall irrigate a hydrozone with similar site, slope, sun exposure, soil conditions, and plant
materials with similar water use.
(B) Sprinkler heads and other emission devices shall be selected based on what is appropriate for the plant
type within that hydrozone.
(C) Where feasible, trees shall be placed on separate valves from shrubs, groundcovers, and turf to
facilitate the appropriate irrigation of trees. The mature size and extent of the root zone shall be
considered when designing irrigation for the tree.
(D) Individual hydrozones that mix plants of moderate and low water use, or moderate and high water
use, may be allowed if:
1. plant factor calculation is based on the proportions of the respective plant water uses and
their plant factor; or
2. the plant factor of the higher water using plant is used for calculations.
(E) Individual hydrozones that mix high and low water use plants shall not be permitted.
(F) On the landscape design plan and irrigation design plan, hydrozone areas shall be designated by
number, letter, or other designation. On the irrigation design plan, designate the areas irrigated by each
valve, and assign a number to each valve. Use this valve number in the Hydrozone Information Table (see
Appendix B Section A). This table can also assist with the irrigation audit and programming the
controller.
(b) The irrigation design plan, at a minimum, shall contain:
(1) location and size of separate water meters for landscape;
(2) location, type and size of all components of the irrigation system, including controllers, main and
lateral lines, valves, sprinkler heads, moisture sensing devices, rain switches, quick couplers,
pressure regulators, and backflow prevention devices;
(3) static water pressure at the point of connection to the public water supply;
(4) flow rate (gallons per minute), application rate (inches per hour), and design operating pressure
(pressure per square inch) for each station;
(5) recycled water irrigation systems as specified in Section 492.14;
(6) the following statement: "I have complied with the criteria of the ordinance and applied them
accordingly for the efficient use of water in the irrigation design plan"; and
12
(7) the signature of a licensed landscape architect, certified irrigation designer, licensed landscape
contractor, or any other person authorized to design an irrigation system. (See Sections 5500.1,
5615, 5641, 5641.1, 5641.2, 5641.3, 5641.4, 5641.5, 5641.6, 6701, 7027.5 of the Business and
Professions Code, Section 832.27 of Title 16 of the California Code of Regulations, and Section
6721 of the Food and Agricultural Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.9. Certificate of Completion.
(a) The Certificate of Completion (see Appendix C for a sample certificate) shall include the following
six (6) elements:
(1) project information sheet that contains:
(A) date;
(B) project name;
(C) project applicant name, telephone, and mailing address;
(D) project address and location; and
(E) property owner name, telephone, and mailing address;
(2) certification by either the signer of the landscape design plan, the signer of the irrigation design
plan, or the licensed landscape contractor that the landscape project has been installed per the
approved Landscape Documentation Package;
(A) where there have been significant changes made in the field during construction, these "as -built" or
record drawings shall be included with the certification;
(B) A diagram of the irrigation plan showing hydrozones shall be kept with the irrigation controller for
subsequent management purposes.
(3) irrigation scheduling parameters used to set the controller (see Section 492.10);
(4) landscape and irrigation maintenance schedule (see Section 492.11);
(5) irrigation audit report (see Section 492.12); and
(6) soil analysis report, if not submitted with Landscape Documentation Package, and documentation
verifying implementation of soil report recommendations (see Section 492.5).
(b) The project applicant shall:
(1) submit the signed Certificate of Completion to the local agency for review;
(2) ensure that copies of the approved Certificate of Completion are submitted to the local water
purveyor and property owner or his or her designee.
(c) The local agency shall:
(1) receive the signed Certificate of Completion from the project applicant;
(2) approve or deny the Certificate of Completion. If the Certificate of Completion is denied, the
local agency shall provide information to the project applicant regarding reapplication, appeal, or
other assistance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.11. Landscape and Irrigation Maintenance Schedule.
(a) Landscapes shall be maintained to ensure water use efficiency. A regular maintenance schedule shall
be submitted with the Certificate of Completion.
(b) A regular maintenance schedule shall include, but not be limited to, routine inspection; auditing,
adjustment and repair of the irrigation system and its components; aerating and dethatching turf areas;
topdressing with compost, replenishing mulch; fertilizing; pruning; weeding in all landscape areas, and
removing obstructions to emission devices. Operation of the irrigation system outside the normal
watering window is allowed for auditing and system maintenance.
13
(c) Repair of all irrigation equipment shall be done with the originally installed components or their
equivalents or with components with greater efficiency.
(d) A project applicant is encouraged to implement established landscape industry sustainable Best
Practices for all landscape maintenance activities.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.12. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
(a) All landscape irrigation audits shall be conducted by a local agency landscape irrigation auditor or a
third party certified landscape irrigation auditor. Landscape audits shall not be conducted by the person
who designed the landscape or installed the landscape.
(b) In large projects or projects with multiple landscape installations (i.e. production home
developments) an auditing rate of 1 in 7 lots or approximately 15% will satisfy this requirement.
(c) For new construction and rehabilitated landscape projects installed after December 1, 2015, as
described in Section 490.1:
(1) the project applicant shall submit an irrigation audit report with the Certificate of Completion to
the local agency that may include, but is not limited to: inspection, system tune-up, system test with
distribution uniformity, reporting overspray or run off that causes overland flow, and preparation of
an irrigation schedule, including configuring irrigation controllers with application rate, soil types,
plant factors, slope, exposure and any other factors necessary for accurate programming;
(2) the local agency shall administer programs that may include, but not be limited to, irrigation
water use analysis, irrigation audits, and irrigation surveys for compliance with the Maximum
Applied Water Allowance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.13. Irrigation Efficiency.
(a) For the purpose of determining Estimated Total Water Use, average irrigation efficiency is assumed
to be 0.75 for overhead spray devices and 0.81 for drip system devices.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.14. Recycled Water.
(a) The installation of recycled water irrigation systems shall allow for the current and future use of
recycled water.
(b) All recycled water irrigation systems shall be designed and operated in accordance with all
applicable local and State laws.
(c) Landscapes using recycled water are considered Special Landscape Areas. The ET Adjustment
Factor for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.15. Graywater Systems.
(a) Graywater systems promote the efficient use of water and are encouraged to assist in on -site
landscape irrigation. All graywater systems shall conform to the California Plumbing Code (Title 24,
Part 5, Chapter 16) and any applicable local ordinance standards. Refer to § 490.1 (d) for the
applicability of this ordinance to landscape areas less than 2,500 square feet with the Estimated Total
Water Use met entirely by graywater.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
14
§ 492.16. Stormwater Management and Rainwater Retention.
(a) Stormwater management practices minimize runoff and increase infiltration which recharges
groundwater and improves water quality. Implementing stormwater best management practices into the
landscape and grading design plans to minimize runoff and to increase on -site rainwater retention and
infiltration are encouraged.
(b) Project applicants shall refer to the local agency or Regional Water Quality Control Board for
information on any applicable stormwater technical requirements
(c) All planted landscape areas are required to have friable soil to maximize water retention and
infiltration. Refer to § 492.6(a)(3).
(d) It is strongly recommended that landscape areas be designed for capture and infiltration capacity that
is sufficient to prevent runoff from impervious surfaces (i.e. roof and paved areas) from either: the one
inch, 24-hour rain event or (2) the 851h percentile, 24-hour rain event, and/or additional capacity as
required by any applicable local, regional, state or federal regulation.
(e) It is recommended that storm water projects incorporate any of the following elements to improve
on -site storm water and dry weather runoff capture and use:
(1) Grade impervious surfaces, such as driveways, during construction to drain to vegetated areas.
(2) Minimize the area of impervious surfaces such as paved areas, roof and concrete driveways.
Incorporate pervious or porous surfaces (e.g., gravel, permeable pavers or blocks, pervious or porous
concrete) that minimize runoff.
(3) Direct runoff from paved surfaces and roof areas into planting beds or landscaped areas to
maximize site water capture and reuse.
(4) Incorporate rain gardens, cisterns, and other rain harvesting or catchment systems.
Incorporate infiltration beds, swales, basins and drywells to capture storm water and dry weather
runoff and increase percolation into the soil.
(5) Consider constructed wetlands and ponds that retain water, equalize excess flow, and filter
pollutants.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.17. Public Education.
(a) Publications. Education is a critical component to promote the efficient use of water in landscapes.
The use of appropriate principles of design, installation, management and maintenance that save water is
encouraged in the community.
(1) A local agency or water supplier/purveyor shall provide information to owners of permitted
renovations and new, single-family residential homes regarding the design, installation,
management, and maintenance of water efficient landscapes based on a water budget.
(b) Model Homes. All model homes that are landscaped shall use signs and written information to
demonstrate the principles of water efficient landscapes described in this ordinance.
(1) Signs shall be used to identify the model as an example of a water efficient landscape featuring
elements such as hydrozones, irrigation equipment, and others that contribute to the overall water
efficient theme. Signage shall include information about the site water use as designed per the local
ordinance; specify who designed and installed the water efficient landscape; and demonstrate low
water use approaches to landscaping such as using native plants, graywater systems, and rainwater
catchment systems.
(2) Information shall be provided about designing, installing, managing, and maintaining water
efficient landscapes.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
15
§ 492.18. Environmental Review.
(a) The local agency must comply with the California Environmental Quality Act (CEQA), as
appropriate.
Note: Authority cited: Section 21082, Public Resources Code. Reference: Sections 21080 and 21082,
Public Resources Code.
§ 493. Provisions for Existing Landscapes.
(a) A local agency may by mutual agreement, designate another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 493.1. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
(a) This section, 493.1, shall apply to all existing landscapes that were installed before December 1, 2015
and are over one acre in size.
(1) For all landscapes in 493.1(a) that have a water meter, the local agency shall administer programs
that may include, but not be limited to, irrigation water use analyses, irrigation surveys, and
irrigation audits to evaluate water use and provide recommendations as necessary to reduce
landscape water use to a level that does not exceed the Maximum Applied Water Allowance for
existing landscapes. The Maximum Applied Water Allowance for existing landscapes shall be
calculated as: MAWA = (0.8) (ETo)(LA)(0.62).
(2) For all landscapes in 493.1(a), that do not have a meter, the local agency shall administer
programs that may include, but not be limited to, irrigation surveys and irrigation audits to evaluate
water use and provide recommendations as necessary in order to prevent water waste.
(b) All landscape irrigation audits shall be conducted by a certified landscape irrigation auditor.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 494. Effective Precipitation.
(a) A local agency may consider Effective Precipitation (25% of annual precipitation) in tracking water
use and may use the following equation to calculate Maximum Applied Water Allowance:
MAWA= (ETo - Eppt) (0.62) [(0.55 x LA) + (0.45 x SLA)] for residential areas.
MAWA= (ETo-EPPT) (0.62) [(0.45 x LA) + (0.55 x SLA)] for non-residential areas.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 495. Reporting.
(a) Local agencies shall report on implementation and enforcement by December 31, 2015. Local
agencies responsible for administering individual ordinances shall report on their updated ordinance,
while those agencies developing a regional ordinance shall report on their existing ordinance. Those
agencies crafting a regional ordinances shall also report on their new ordinance by March 1, 2016.
Subsequently, reporting for all agencies will be due by January 31' of each year. Reports shall be
submitted to the Department of Water Resources.
(b) Local agencies are to address the following:
(1) State whether you are adopting a single agency ordinance or a regional agency alliance
ordinance, and the date of adoption or anticipated date of adoption.
16
(2) Define the reporting period. The reporting period shall commence on December 1, 2015 and the
end on December 28, 2015. For local agencies crafting regional ordinances with other agencies,
there shall be an additional reporting period commencing on February 1, 2016 and ending on
February 28, 2016. In subsequent years, all local agency reporting will be for the calendar year.
(3) State if using a locally modified Water Efficient Landscape Ordinance (WELD) or the MWELO.
If using a locally modified WELD, how is it different than MWELO, is it at least as efficient as
MWELO, and are there any exemptions specified?
(4) State the entity responsible for implementing the ordinance.
(5) State number and types of projects subject to the ordinance during the specified reporting period.
(6) State the total area (in square feet or acres) subject to the ordinance over the reporting period, if
available.
(7) Provide the number of new housing starts, new commercial projects, and landscape retrofits
during the reporting period.
(8) Describe the procedure for review of projects subject to the ordinance.
(9) Describe actions taken to verify compliance. Is a plan check performed; if so, by what entity? Is
a site inspection performed; if so, by what entity? Is a post -installation audit required; if so, by
whom?
(10) Describe enforcement measures.
(11) Explain challenges to implementing and enforcing the ordinance.
(12) Describe educational and other needs to properly apply the ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
17
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
ALAMEDA
Fremont
1.5
1.9
3.4
4.7
5.4
6.3
6.7
6.0
4.5
3.4
1.8
1.5
47.0
Livermore
1.2
1.5
2.9
4.4
5.9
6.6
7.4
6.4
5.3
3.2
1.5
0.9
47.2
Oakland
1.5
1.5
2.8
3.9
5.1
1 5.3
6.0
5.5
4.8
1 3.1
1.4
1 0.9
41.8
Oakland Foothills
1.1
1.4
2.7
3.7
5.1
6.4
5.8
4.9
3.6
2.6
1.4
1.0
39.6
Pleasanton
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
Union City
1.4
1.8
3.1
4.2
5.4
5.9
6.4
1 5.7
4.4
3.1
1.5
1.2
44.2
ALPINE
Markleeville
0.7
0.9
2.0
3.5
5.0
6.1
7.3
6.4
4.4
2.6
1.2
0.5
40.6
AMADOR
Jackson
1.2
1.5
2.8
4.4
6.0
7.2
7.9
7.2
5.3
3.2
1.4
0.9
48.9
Shanandoah Valley
1.0
1.7
2.9
4.4
5.6
6.8
7.9
7.1
5.2
3.6
1.7
1.0
48.8
BUTTE
Chico
1.2
1.8
2.9
4.7
6.1
7.4
8.5
7.3
5.4
3.7
1.7
1.0
51.7
Durham
1.1
1.8
3.2
5.0
6.5
7.4
7.8
6.9
5.3
3.6
1.7
1.0
51.1
Gridley
1.2
1.8
3.0
4.7
6.1
7.7
8.5
7.1
5.4
3.7
1.7
1.0
51.9
Oroville
1.2
1.7
2.8
4.7
6.1
7.6
8.5
7.3
5.3
3.7
1.7
1.0
51.5
CALAVERAS
San Andreas
1.2
1.5
2.8
4.4
6.0
7.3
7.9
7.0
5.3
3.2
1.4
0.7
48.8
COLUSA
Colusa
1.0
1.7
3.4
5.0
6.4
7.6
8.3
7.2
5.4
3.8
1.8
1.1
52.8
Williams
1.2
1.7
2.9
4.5
6.1
7.2
8.5
7.3
5.3
3.4
1.6
1.0
50.8
CONTRA COSTA
Brentwood
1.0
1.5
2.9
4.5
6.1
7.1
7.9
6.7
5.2
3.2
1.4
0.7
48.3
Concord
1.1
1.4
2.4
4.0
5.5
5.9
7.0
6.0
4.8
3.2
1.3
0.7
43.4
Courtland
0.9
1.5
2.9
4.4
6.1
6.9
7.9
6.7
5.3
3.2
1.4
0.7
48.0
Martinez
1.2
1.4
2.4
3.9
5.3
5.6
6.7
5.6
4.7
3.1
1.2
0.7
41.8
Moraga
1.2
1.5
3.4
4.2
5.5
6.1
6.7
5.9
4.6
3.2
1.6
1.0
44.9
Pittsburg
1.0
1.5
2.8
4.1
5.6
6.4
7.4
6.4
5.0
3.2
1.3
0.7
45.4
Walnut Creek
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
DEL NORTE
Crescent City
0.5
0.9
2.0
3.0
3.7
3.5
4.3
3.7
3.0
2.0
0.9
0.5
27.7
EL DORADO
Camino
0.9
1.7
2.5
3.9
5.9
7.2
7.8 1
6.8
5.1
3.1
1.5
0.9
47.3
FRESNO
Clovis
1.0
1.5
3.2
4.8
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Coalinga
1.2
1.7
3.1
4.6
6.2
7.2
8.5
7.3
5.3
3.4
1.6
0.7
50.9
Firebaugh
1.0
1.8
3.7
5.7
7.3
8.1
8.2
7.2
5.5
3.9
2.0
1.1
55.4
FivePoints
1.3
2.0
4.0
6.1
7.7
8.5
8.7
8.0
6.2
4.5
2.4
1.2
60.4
Fresno
0.9
1.7
3.3
4.8
6.7
7.8
8.4
7.1
5.2
3.2
1.4
0.6
51.1
Fresno State
0.9
1.6
3.2
5.2
7.0
8.0
8.7
7.6
5.4
3.6
1.7
0.9
53.7
Friant
1.2
1.5
3.1
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.3
Kerman
0.9
1.5
3.2
4.8
6.6
7.7
8.4
7.2
5.3
3.4
1.4
0.7
51.2
Kingsburg
1.0
1.5
3.4
4.8
6.6
7.7
8.4
7.2
5.3
3.4
1.4
0.7
51.6
Mendota
1.5
2.5
4.6
6.2
7.9
8.6
8.8
7.5
5.9
4.5
2.4
1.5
61.7
Orange Cove
1.2
1.9
3.5
4.7
7.4
8.5
8.9
7.9
5.9
3.7
1.8
1.2
56.7
Panoche
1.1
2.0
4.0
5.6
7.8
8.5
8.3
7.3
5.6
3.9
1.8
1.2
57.2
18
Parlier 1 1.0 1 1.9 1 3.6 1 5.2 6.8 1 7.6 1 8.1 7.0 5.1 3.4 1.7 0.9 1 52.0
Appendix A - Reference Evapotranspiration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
FRESNO
Reedley
1.1
1.5
3.2
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.3
Westlands
0.9
1.7
3.8
6.3
8.0
8.6
8.6
7.8
5.9
4.3
2.1
1.1
58.8
GLENN
Orland
1.1
1.8
3.4
5.0
6.4
7.5
7.9
6.7
5.3
3.9
1.8
1.4
52.1
Willows
1.2
1.7
2.9
4.7
6.1
7.2
8.5
7.3
5.3
3.6
1.7
1.0
51.3
HUMBOLDT
Eureka
0.5
1.1
2.0
3.0
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Ferndale
0.5
1.1
2.0
3.0
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Garberville
0.6
1.2
2.2
3.1
4.5
5.0
5.5
4.9
3.8
2.4
1.0
0.7
34.9
Hoopa
0.5
1.1
2.1
3.0
4.4
5.4
6.1
5.1
3.8
2.4
0.9
0.7
35.6
IMPERIAL
Brawley
2.8
3.8
5.9
8.0
10.4
11.5
11.7
10.0
8.4
6.2
3.5
2.1
84.2
Calipatria/Mulberry
2.4
3.2
5.1
6.8
8.6
9.2
9.2
8.6
7.0
5.2
3.1
2.3
70.7
El Centro
2.7
3.5
5.6
7.9
10.1
11.1
11.6
9.5
8.3
6.1
3.3
2.0
81.7
Holtville
2.8
3.8
5.9
7.9
10.4
11.6
12.0
10.0
8.6
6.2
3.5
2.1
84.7
Meloland
2.5
3.2
5.5
7.5
8.9
9.2
9.0
8.5
6.8
5.3
3.1
2.2
71.6
Palo Verde II
2.5
3.3
5.7
6.9
8.5
8.9
8.6
7.9
6.2
4.5
2.9
2.3
68.2
Seeley
2.7
3.5
5.9
7.7
9.7
10.1
9.3
8.3
6.9
5.5
3.4
2.2
75.4
Westmoreland
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Yuma
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
INYO
Bishop
1.7
2.7
4.8
6.7
8.2
10.9
7.4
9.6
7.4
4.8
2.5
1.6
68.3
Death Valley Jct
2.2
3.3
5.4
7.7
9.8
11.1
11.4
10.1
8.3
5.4
2.9
1.7
79.1
Independence
1.7
2.7
3.4
6.6
8.5
9.5
9.8
8.5
7.1
3.9
2.0
1.5
65.2
Lower Haiwee Res.
1.8
2.7
4.4
7.1
8.5
9.5
9.8
8.5
7.1
4.2
2.6
1.5
67.6
Oasis
2.7
2.8
5.9
8.0
10.4
11.7
11.6
10.0
8.4
6.2
3.4
2.1
83.1
KERN
Arvin
1.2
1.8
3.5
4.7
6.6
7.4
8.1
7.3
5.3
3.4
1.7
1.0
51.9
Bakersfield
1.0
1.8
3.5
4.7
6.6
7.7
8.5
7.3
5.3
3.5
1.6
0.9
52.4
Bakersfield/Bonanza
1.2
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Bakersfield/Greenlee
1.2
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Belridge
1.4
2.2
4.1
5.5
7.7
8.5
8.6
1 7.8
6.0
3.8
2.0
1.5
59.2
Blackwells Corner
1.4
2.1
3.8
5.4
7.0
7.8
8.5
7.7
5.8
3.9
1.9
1.2
56.6
Buttonwillow
1.0
1.8
3.2
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.5
0.9
52.0
China Lake
2.1
3.2
5.3
7.7
9.2
10.0
11.0
9.8
7.3
4.9
2.7
1.7
74.8
Delano
0.9
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.4
0.7
52.0
Famoso
1.3
1.9
3.5
4.8
6.7
7.6
8.0
7.3
5.5
3.5
1.7
1.3
53.1
Grapevine
1.3
1.8
3.1
4.4
5.6
6.8
7.6
6.8
5.9
3.4
1.9
1.0
49.5
Inyokern
2.0
3.1
4.9
7.3
8.5
9.7
11.0
9.4
7.1
5.1
2.6
1.7
72.4
Isabella Dam
1.2
1.4
2.8
4.4
5.8
7.3
7.9
7.0
5.0
3.2
1.7
0.9
48.4
Lamont
1.3
2.4
4.4
4.6
6.5
7.0
8.8
7.6
5.7
3.7
1.6
0.8
54.4
Lost Hills
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
McFarland/Kem
1.2
2.1
3.7
5.6
7.3
8.0
8.3
7.4
5.6
4.1
2.0
1.2
56.5
S hafter
1.0
1.7
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.5
0.9
52.1
Taft
1.3
1.8
3.1
4.3
6.2
7.3
8.5
7.3
5.4
3.4
1.7
1.0
51.2
Tehachapi
1.4
1.8
3.2
5.0
6.1
7.7
7.9
7.3
5.9
3.4
2.1
1.2
52.9
KINGS
19
Caruthers 1.6 1 2.5 1 4.0 5.7 7.8 1 8.7 1 9.3 8.4 6.3 1 4.4 2.4 1.6 1 62.7
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
KINGS
Corcoran
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Hanford
0.9
1.5
3.4
5.0
6.6
7.7
8.3
7.2
5.4
3.4
1.4
0.7
51.5
Kettleman
1.1
2.0
4.0
6.0
7.5
8.5
9.1
8.2
6.1
4.5
2.2
1.1
60.2
Lemoore
0.9
1.5
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.4
0.7
51.7
Stratford
0.9
1.9
3.9
6.1
7.8
8.6
8.8
7.7
5.9
4.1
2.1
1.0
58.7
LAKE
Lakeport
1.1
1.3
2.6
3.5
5.1
6.0
7.3
6.1
4.7
2.9
1.2
0.9
42.8
Lower Lake
1.2
1.4
2.7
4.5
5.3
6.3
7.4
6.4
5.0
3.1
1.3
0.9
45.4
LASSEN
Buntingville
1.0
1.7
3.5
4.9
6.2
7.3
8.4
7.5
5.4
3.4
1.5
0.9
51.8
Ravendale
0.6
1.1
2.3
4.1
5.6
6.7
7.9
7.3
4.7
2.8
1.2
0.5
44.9
Susanville
0.7
1.0
2.2
4.1
5.6
6.5
7.8
7.0
4.6 1
2.8
1.2
0.5
44.0
LOS ANGELES
Burbank
2.1
2.8
3.7
4.7
5.1
6.0
6.6
6.7
5.4
4.0
2.6
2.0
51.7
Claremont
2.0
2.3
3.4
4.6
5.0
6.0
7.0
7.0
5.3
4.0
2.7
2.1
51.3
E1 Dorado
1.7
2.2
3.6
4.8
5.1
5.7
5.9
5.9
4.4
3.2
2.2
1.7
46.3
Glendale
2.0
2.2
3.3
3.8
4.7
4.8
5.7
5.6
4.3
3.3
2.2
1.8
43.7
Glendora
2.0
2.5
3.6
4.9
5.4 1
6.1
7.3
6.8
5.7
4.2
2.6
2.0
53.1
Gorman
1.6
2.2
3.4
4.6
5.5
7.4
7.7
7.1
5.9
3.6
2.4
1.1
52.4
Hollywood Hills
2.1
2.2
3.8
5.4
6.0
6.5
6.7
6.4
5.2
3.7
2.8
2.1
52.8
Lancaster
2.1
3.0
4.6
5.9
8.5
9.7
11.0
9.8
7.3
4.6
2.8
1.7
71.1
Long Beach
1.8
2.1
3.3
3.9
4.5
4.3
5.3
4.7
3.7
2.8
1.8
1.5
39.7
Los Angeles
2.2
2.7
3.7
4.7
5.5
5.8
6.2
5.9
5.0
3.9
2.6
1.9
50.1
Monrovia
2.2
2.3
3.8
4.3
5.5
5.9
6.9
6.4
5.1
3.2
2.5
2.0
50.2
Palmdale
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
Pasadena
2.1
2.7
3.7
4.7
5.1
6.0
7.1
6.7
5.6
4.2
2.6
2.0
52.3
Pearblossom
1.7
2.4
3.7
4.7
7.3
7.7
9.9
7.9
6.4
4.0
2.6
1.6
59.9
Pomona
1.7
2.0
3.4
4.5
5.0
5.8
6.5
6.4
4.7
3.5
2.3
1.7
47.5
Redondo Beach
2.2
2.4
3.3
3.8
4.5
4.7
5.4
4.8
4.4
2.8
2.4
2.0
42.6
San Fernando
2.0
2.7
3.5
4.6
5.5
5.9
7.3
6.7
5.3
3.9
2.6
2.0
52.0
Santa Clarita
2.8
2.8
4.1
5.6
6.0
1 6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Santa Monica
1.8
2.1
3.3
1 4.5
4.7
5.0
5.4
5.4
3.9
3.4
2.4
2.2
44.2
MADERA
Chowchilla
1.0
1.4
3.2
4.7
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Madera
0.9
1.4
3.2
4.8
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.5
Raymond
1.2
1.5
3.0
4.6
6.1
1 7.6
8.4
7.3
5.2
3.4
1.4
0.7
50.5
MARIN
Black Point
1.1
1.7
3.0
4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
0.9
43.0
Novato
1.3
1.5
2.4
3.5
4.4
6.0
5.9
5.4
4.4
2.8
1.4
0.7
39.8
Point San Pedro
1.1
1.7
3.0
4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
0.9
43.0
San Rafael
1.2
1.3
2.4
1 3.3
4.0
4.8
4.8
4.9
4.3
2.7
1.3
0.7
35.8
MARIPOSA
Coulterville
1.1
1.5
2.8
4.4
5.9
7.3
8.1
7.0
5.3
3.4
1.4
0.7
48.8
Mariposa
1.1
1.5
2.8
4.4
5.9
7.4
8.2
7.1
5.0
3.4
1.4
0.7
49.0
Yosemite Village
0.7
1.0
2.3
3.7
5.1
6.5
7.1
6.1
4.4
2.9
1.1
0.6
41.4
MENDOCINO
Fort Bragg
0.9
1.3
2.2
3.0
3.7
3.5
3.7
3.7
3.0
2.3
1.2
0.7
29.0
Hopland 1.1 1.3 1 2.6 1 3.4 5.0 1 5.9 1 6.5 5.7 1 4.5 1 2.8 1.3 0.7 1 40.9
Appendix A - Reference Eva otrans iration (ETo) Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
MENDOCINO
Point Arena
1.0
1.3
2.3
3.0
3.7
3.9
3.7
3.7
3.0
2.3
1.2
0.7
29.6
Sanel Valley
1.0
1.6
3.0
4.6
6.0
7.0
8.0
7.0
5.2
3.4
1.4
0.9
49.1
Ukiah
1.0
1.3
2.6
3.3
5.0
5.8
6.7
5.9
4.5
1 2.8
1.3
0.7
40.9
MERCED
Kesterson
0.9
1.7
3.4
5.5
7.3
8.2
8.6
7.4
5.5
3.8
1.8
0.9
55.1
Los Banos
1.0
1.5
3.2
4.7
6.1
7.4
8.2
7.0
5.3
3.4
1.4
0.7
50.0
Merced
1.0
1.5
3.2
4.7
6.6
7.9
8.5
7.2
5.3
3.4
1.4
0.7
51.5
MODOC
Modoc/Alturas
0.9
1.4
2.8
3.7
5.1
6.2
7.5
6.6
4.6
2.8
1.2
0.7
43.2
MONO
Bridgeport
0.7
0.9
2.2
3.8
5.5
6.6
7.4
6.7
4.7
2.7
1.2
0.5
43.0
MONTEREY
Arroyo Seco
1.5
2.0
3.7
5.4
6.3
7.3
7.2
6.7
5.0
3.9
2.0
1.6
52.6
Castroville
1.4
1.7
3.0
4.2
4.6
4.8
4.0
3.8
3.0
2.6
1.6
1.4
36.2
Gonzales
1.3
1.7
1 3.4
4.7
1 5.4
1 6.3
6.3
5.9
4.4
1 3.4
1.9
1 1.3
1 45.7
Greenfield
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
King City
1.7
2.0
3.4
4.4
4.4
5.6
6.1
6.7
6.5
5.2
2.2
1.3
49.6
King City -Oasis Rd.
1.4
1.9
3.6
5.3
6.5
7.3
7.4
6.8
5.1
4.0
2.0
1.5
52.7
Long Valley
1.5
1.9
3.2
4.1
5.8
6.5
7.3
6.7
5.3
3.6
2.0
1.2
49.1
Monterey
1.7
1.8
2.7
3.5
4.0
4.1
4.3
4.2
3.5
2.8
1.9
1.5
36.0
Pajaro
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
3.4
2.4
1.8
46.1
Salinas
1.6
1.9
2.7
3.8
4.8
4.7
5.0
4.5
4.0
2.9
1.9
1.3
39.1
Salinas North
1.2
1.5
2.9
4.1
4.6
5.2
4.5
4.3
3.2
2.8
1.5
1.2
36.9
San Ardo
1.0
1.7
3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
San Juan
1.8
2.1
3.4
4.6
5.3
5.7
5.5
4.9
3.8
3.2
2.2
1.9
44.2
S oledad
1.7
2.0
3.4
4.4
5.5
5.4
6.5
6.2
5.2
3.7
2.2
1.5
47.7
NAPA
Angwin
1.8
1.9
3.2
4.7
5.8
7.3
8.1
7.1
5.5
4.5
2.9
2.1
54.9
Cameros
0.8
1.5
3.1
4.6
5.5
6.6
6.9
6.2
4.7
3.5
1.4
1.0
45.8
Oakville
1.0
1.5
2.9
4.7
5.8
6.9
7.2
6.4
4.9
3.5
1.6
1.2
47.7
St Helena
1.2
1.5
2.8
3.9
5.1
6.1
7.0
6.2
4.8
3.1
1.4
0.9
44.1
Yountville
1.3
1.7
2.8
3.9
5.1
6.0
7.1
6.1
4.8
3.1
1.5
0.9
44.3
NEVADA
Grass Valley
1.1
1.5
2.6
4.0
5.7
7.1
7.9
7.1
5.3
3.2
1.5
0.9
48.0
Nevada City
1.1
1.5
2.6
3.9
5.8
6.9
7.9
7.0
5.3
3.2
1.4
0.9
47.4
ORANGE
Irvine
2.2
2.5
3.7
4.7
5.2
5.9
6.3
6.2
4.6
3.7
2.6
2.3
49.6
Laguna Beach
2.2
2.7
3.4
3.8
4.6
4.6
4.9
4.9
4.4
3.4
2.4
2.0
43.2
Santa Ana
2.2
2.7
3.7
4.5
4.6
5.4
6.2
6.1
4.7
3.7
2.5
2.0
48.2
PLACER
Auburn
1.2
1.7
2.8
4.4
6.1
7.4
8.3
7.3
5.4
3.4
1.6
1.0
50.6
Blue Canyon
0.7
1.1
2.1
3.4
4.8
6.0
7.2
6.1
4.6
2.9
0.9
0.6
40.5
Colfax
1.1
1.5
2.6
4.0
5.8
7.1
7.9
7.0
5.3
3.2
1.4
0.9
47.9
Roseville
1.1
1.7
3.1
4.7
6.2
7.7
8.5
7.3
5.6
3.7
1.7
1.0
52.2
Soda Springs
0.7
0.7
1.8
3.0
4.3
5.3
6.2
5.5
4.1
2.5
0.7
0.7
35.4
Tahoe City
0.7
0.7
1.7
3.0
4.3
5.4
6.1
5.6
4.1
2.4
0.8
0.6
35.5
Truckee
0.7
0.7
1.7
3.2
4.4
5.4
6.4
5.7
4.1
2.4
0.8
0.6
36.2
21
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
PLUMAS
Portola
0.7
0.9
1.9
3.5
4.9
5.9
7.3
5.9
4.3
2.7
0.9
0.5
39.4
Quincy
0.7
0.9
2.2
3.5
4.9
5.9
7.3
5.9
4.4
2.8
1.2
0.5
40.2
RIVERSIDE
Beaumont
2.0
2.3
3.4
4.4
6.1
7.1
7.6
7.9
6.0
3.9
2.6
1.7
55.0
Blythe
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Cathedral City
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Coachella
2.9
4.4
6.2
1 8.4
10.5
11.9
12.3
10.1
8.9
6.2
3.8
2.4
88.1
Desert Center
2.9
4.1
6.4
8.5
11.0
12.1
12.2
11.1
9.0
6.4
3.9
2.6
90.0
Elsinore
2.1
2.8
3.9
4.4
5.9
7.1
7.6
7.0
5.8
3.9
2.6
1.9
55.0
Indio
3.1
3.6
6.5
8.3
10.5
11.0
10.8
9.7
8.3
5.9
3.7
2.7
83.9
La Quinta
2.4
2.8
5.2
6.5
8.3
8.7
8.5
7.9
6.5
4.5
2.7
2.2
66.2
Mecca
2.6
3.3
5.7
7.2
8.6
9.0
8.8
8.2
6.8
5.0
3.2
2.4
70.8
Oasis
2.9
3.3
5.3
6.1
8.5
8.9
8.7
7.9
6.9
4.8
2.9
2.3
68.4
Palm Desert
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
Palm Springs
2.0
2.9
4.9
7.2
8.3
8.5
11.6
8.3
7.2
5.9
2.7
1.7
71.1
Rancho California
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
Rancho Mirage
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Ripley
2.7
3.3
5.6
7.2
8.7
8.7
8.4
7.6
6.2
4.6
2.8
2.2
67.8
Salton Sea North
2.5
3.3
5.5
7.2
8.8
9.3
9.2
8.5
6.8
5.2
3.1
2.3
71.7
Temecula East II
2.3
2.4
4.1
1 4.9
6.4
7.0
7.8
7.4
5.7
4.1
2.6
2.2
56.7
Thermal
2.4
3.3
5.5
7.6
9.1
9.6
9.3
8.6
7.1
5.2
3.1
2.1
72.8
Riverside UC
2.5
2.9
4.2
5.3
5.9
6.6
7.2
6.9
5.4
4.1
2.9
2.6
56.4
Winchester
2.3
2.4
4.1
4.9
6.4
6.9
7.7
7.5
6.0
3.9
2.6
2.1
56.8
SACRAMENTO
Fair Oaks
1.0
1.6
3.4
4.1
6.5
7.5
8.1
7.1
5.2
3.4
1.5
1.0
50.5
Sacramento
1.0
1.8
3.2
4.7
6.4
7.7
8.4
7.2
5.4
3.7
1.7
0.9
51.9
Twitchell Island
1.2
1.8
3.9
5.3
7.4
8.8
9.1
7.8
5.9
3.8
1.7
1.2
57.9
SAN BENITO
Hollister
1.5
1.8
3.1
4.3
5.5
5.7
6.4
5.9
5.0
3.5
1.7
1.1
45.1
San Benito
1.2
1.6
3.1
4.6
5.6
6.4
6.9
6.5
4.8
3.7
1.7
1.2
47.2
San Juan Valley
1.4
1.8
3.4
4.5
6.0
6.7
7.1
6.4
5.0
3.5
1.8
1.4
49.1
SAN BERNARDINO
Baker
2.7
3.9
6.1
8.3
10.4
11.8
12.2
11.0
8.9
6.1
3.3
2.1
86.6
Barstow NE
2.2
2.9
5.3
6.9
9.0
10.1
9.9
8.9
6.8
4.8
2.7
2.1
71.7
Big Bear Lake
1.8
2.6
4.6
6.0
7.0
7.6
8.1
7.4
5.4
4.1
2.4
1.8
58.6
Chino
2.1
2.9
3.9
4.5
5.7
6.5
7.3
7.1
5.9
4.2
2.6
2.0
54.6
Crestline
1.5
1.9
3.3
4.4
5.5
6.6
7.8
7.1
5.4
3.5
2.2
1.6
50.8
Lake Arrowhead
1.8
2.6
4.6
6.0
7.0
7.6
8.1
7.4
5.4
4.1
2.4
1.8
58.6
Lucerne Valley
2.2
2.9
5.1
6.5
9.1
11.0
11.4
9.9
7.4
5.0
3.0
1.8
75.3
Needles
3.2
4.2
6.6
8.9
11.0
12.4
12.8
11.0
8.9
6.6
4.0
2.7
92.1
Newberry Springs
2.1
2.9
5.3
8.4
9.8
10.9
11.1
9.9
7.6
5.2
3.1
2.0
78.2
San Bernardino
2.0
2.7
3.8
4.6
5.7
6.9
7.9
7.4
5.9
4.2
2.6
2.0
55.6
Twentynine Palms
2.6
3.6
5.9
7.9
10.1
11.2
11.2
10.3
8.6
5.9
3.4
2.2
82.9
Victorville
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
SAN DIEGO
Chula Vista
2.2
2.7
3.4
3.8
4.9
4.7
5.5
4.9
4.5
3.4
2.4
2.0
44.2
Escondido SPV
2.4
2.6
3.9
4.7
5.9
6.5
7.1
6.7
5.3
3.9
2.8
2.3
54.2
22
Miramar 2.3 1 2.5 1 3.7 1 4.1 5.1 1 5.4 1 6.1 5.8 1 4.5 1 3.3 2.4 2.1 47.1
Appendix A - Reference Evapotranspiration (ETo) Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SAN DIEGO
Oceanside
2.2
2.7
3.4
3.7
4.9
4.6
4.6
5.1
4.1
3.3
2.4
2.0
42.9
Otay Lake
2.3
2.7
3.9
4.6
5.6
5.9
6.2
6.1
4.8
3.7
2.6
2.2
50.4
Pine Valley
1.5
2.4
3.8
5.1
6.0
7.0
7.8
7.3
6.0
4.0
2.2
1.7
54.8
Ramona
2.1
2.1
3.4
4.6
5.2
6.3
6.7
6.8
5.3
4.1
2.8
2.1
51.6
San Diego
2.1
2.4
3.4
4.6
5.1
5.3
5.7
5.6
4.3
3.6
2.4
2.0
46.5
Santee
2.1
2.7
3.7
4.5
5.5
6.1
6.6
6.2
5.4
3.8
2.6
2.0
51.1
Torrey Pines
2.2
2.3
3.4
3.9
4.0
4.1
4.6
4.7
3.8
2.8
2.0
2.0
39.8
Warner Springs
1.6
2.7
3.7
4.7
5.7
7.6
8.3
7.7
6.3
4.0
2.5
1.3
56.0
SAN FRANCISCO
San Francisco
1.5
1.3
2.4
3.0
3.7
4.6
4.9
4.8
4.1
2.8
1.3
0.7
35.1
SAN JOAQUIN
Farmington
1.5
1.5
2.9
4.7
6.2
7.6
8.1
6.8
5.3
3.3
1.4
0.7
50.0
Lodi West
1.0
1.6
3.3
4.3
6.3
6.9
7.3
6.4
4.5
3.0
1.4
0.8
46.7
Manteca
0.9
1.7
3.4
5.0
6.5
7.5
8.0
7.1
5.2
3.3
1.6
0.9
51.2
Stockton
0.8
1.5
2.9
4.7
6.2
7.4
8.1
6.8
5.3
3.2
1.4
0.6
49.1
Tracy
1.0
1.5
2.9
4.5
6.1
7.3
7.9
6.7
5.3
3.2
1.3
0.7
48.5
SAN LUIS OBISPO
Arroyo Grande
2.0
2.2
3.2
3.8
4.3
4.7
4.3
4.6
3.8
3.2
2.4
1.7
40.0
Atascadero
1.2
1.5
2.8
3.9
4.5
6.0
6.7
6.2
5.0
3.2
1.7
1.0
43.7
Morro Bay
2.0
2.2
3.1
3.5
4.3
4.5
4.6
4.6
3.8
3.5
2.1
1.7
39.9
Nipomo
2.2
2.5
3.8
5.1
5.7
6.2
6.4
6.1
4.9
4.1
2.9
2.3
52.1
Paso Robles
1.6
2.0
3.2
4.3
5.5
6.3
7.3
6.7
5.1
3.7
2.1
1.4
49.0
San Luis Obispo
2.0
2.2
3.2
4.1
4.9
5.3
4.6
5.5
4.4
3.5
2.4
1.7
43.8
San Miguel
1.6
2.0
3.2
4.3
5.0
6.4
7.4
6.8
5.1
3.7
2.1
1.4
49.0
San Simeon
2.0
2.0
2.9
3.5
4.2
4.4
4.6
4.3
3.5
3.1
2.0
1.7
38.1
SAN MATEO
Hal Moon Bay
1.5
1.7
2.4
3.0
3.9
4.3
4.3
4.2
3.5
2.8
1.3
1.0
33.7
Redwood City
1.5
1.8
2.9
3.8
5.2
5.3
6.2
5.6
4.8
1 3.1
1.7
1.0
42.8
Woodside
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
SANTA BARBARA
Betteravia
2.1
2.6
4.0
5.2
6.0
5.9
5.8
5.4
4.1
3.3
2.7
2.1
49.1
Carpenteria
2.0
2.4
3.2
3.9
4.8
1 5.2
5.5
5.7
4.5
3.4
2.4
2.0
44.9
Cuyama
2.1
2.4
3.8
5.4
6.9
7.9
8.5
7.7
5.9
4.5
2.6
2.0
59.7
Goleta
2.1
2.5
3.9
5.1
5.7
5.7
5.4
5.4
4.2
3.2
2.8
2.2
48.1
Goleta Foothills
2.3
2.6
3.7
5.4
5.3
5.6
5.5
5.7
4.5
3.9
2.8
2.3
49.6
Guadalupe
2.0
2.2
3.2
3.7
4.9
4.6
4.5
4.6
4.1
3.3
2.4
1.7
41.1
Lompoc
2.0
2.2
3.2
3.7
4.8
4.6
4.9
4.8
3.9
3.2
2.4
1.7
41.1
Los Alamos
1.8
2.0
3.2
4.1
4.9
5.3
5.7
5.5
4.4
3.7
2.4
1.6
44.6
Santa Barbara
2.0
2.5
3.2
3.8
4.6
5.1
5.5
4.5
3.4
2.4
1.8
1.8
40.6
Santa Maria
1.8
2.3
3.7
5.1
5.7
5.8
5.6
5.3
4.2
3.5
2.4
1.9
47.4
Santa Ynez
1.7
2.2
3.5
5.0
5.8
6.2
6.4
6.0
4.5
3.6
2.2
1.7
48.7
Sisquoc
2.1
2.5
3.8
4.1
6.1
6.3
6.4
5.8
4.7
1 3.4
2.3
1.8
49.2
S olvang
2.0
2.0
3.3
4.3
5.0
5.6
6.1
5.6
4.4
3.7
2.2
1.6
45.6
SANTA CLARA
Gilroy
1.3
1.8
3.1
4.1
5.3
5.6
6.1
5.5
4.7
3.4
1.7
1.1
43.6
Los Gatos
1.5
1.8
2.8
3.9
5.0
5.6
6.2
5.5
4.7
3.2
1.7
1.1
42.9
Morgan Hill
1.5
1.8
3.4
4.2
6.3
7.0
7.1
6.0
5.1
3.7
1.9
1.4
49.5
23
Palo Alto 1.5 1 1.8 1 2.8 1 3.8 5.2 1 5.3 1 6.2 5.6 1 5.0 1 3.2 1.7 1.0 1 43.0
Appendix A - Reference Evapotranspiration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SANTA CLARA
San Jose
1.5
1.8
3.1
4.1
5.5
5.8
6.5
5.9
5.2
3.3
1.8
1.0
45.3
SANTA CRUZ
De Laveaga
1.4
1.9
3.3
4.7
4.9
5.3
5.0
4.8
3.6
3.0
1.6
1.3
1 40.8
Green Valley Rd
1.2
1.8
3.2
4.5
4.6
5.4
5.2
5.0
3.7
3.1
1.6
1.3
40.6
Santa Cruz
1.5
1.8
2.6
3.5
4.3
4.4
4.8
4.4
3.8
2.8
1.7
1.2
36.6
Watsonville
1.5
1.8
2.7
3.7
4.6
4.5
4.9
4.2
4.0
2.9
1.8
1.2
37.7
Webb
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
3.4
2.4
1.8
46.2
SHASTA
Burney
0.7
1.0
2.1
3.5
4.9
5.9
7.4
6.4
4.4
2.9
0.9
0.6
40.9
Fall River Mills
0.6
1.0
2.1
3.7
5.0
6.1
7.8
6.7
4.6
2.8
0.9
0.5
41.8
Glenburn
0.6
1.0
2.1
3.7
5.0
6.3
7.8
6.7
4.7
2.8
0.9
0.6
42.1
McArthur
0.7
1.4
2.9
4.2
5.6
6.9
8.2
7.2
5.0
3.0
1.1
0.6
46.8
Redding
1.2
1.4
2.6
4.1
5.6
7.1
8.5
7.3
5.3
3.2
1.4
0.9
48.8
SIERRA
Downieville
0.7
1.0
2.3
3.5
5.0
6.0
7.4
6.2
4.7
2.8
0.9
0.6
41.3
Sierraville
0.7
1.1
2.2
3.2
4.5
5.9
7.3
6.4
4.3
2.6
0.9
0.5
39.6
SISKIYOU
Happy Camp
0.5
0.9
2.0
3.0
4.3
5.2
6.1
5.3
4.1
2.4
0.9
0.5
35.1
MacDoel
1.0
1.7
3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
Mt Shasta
0.5
0.9
2.0
3.0
4.5
5.3
6.7
5.7
4.0
2.2
0.7
0.5
36.0
Tule lake FS
0.7
1.3
2.7
4.0
5.4
6.3
7.1
6.4
4.7
2.8
1.0
0.6
42.9
Weed
0.5
0.9
2.0
2.5
4.5
5.3
6.7
5.5
3.7
2.0
0.9
0.5
34.9
Yreka
0.6
0.9
2.1
3.0
4.9
5.8
7.3
6.5
4.3
2.5
0.9
0.5
39.2
SOLANO
Benicia
1.3
1.4
2.7
3.8
4.9
5.0
6.4
5.5
4.4
2.9
1.2
0.7
40.3
Dixon
0.7
1.4
3.2
5.2
6.3
7.6
8.2
7.2
5.5
4.3
1.6
1.1
52.1
Fairfield
1.1
1.7
2.8
4.0
5.5
6.1
7.8
6.0
4.8
3.1
1.4
0.9
45.2
Hastings Tract
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Putah Creek
1.0
1.6
3.2
4.9
6.1
7.3
7.9
7.0
5.3
3.8
1.8
1.2
51.0
Rio Vista
0.9
1.7
2.8
4.4
5.9
6.7
7.9
6.5
5.1
3.2
1.3
0.7
47.0
Suisun Valley
0.6
1.3
3.0
4.7
5.8
7.0
7.7
6.8
5.3
3.8
1.4
0.9
48.3
Winters
0.9 1
1.7
3.3
1 5.0
6.4
7.5
7.9 1
7.0
5.2 1
3.5
1 1.6
1.0 1
51.0
SONOMA
Bennett Valley
1.1
1.7
3.2
4.1
5.5
6.5
6.6
5.7
4.5
3.1
1.5
0.9
44.4
Cloverdale
1.1
1.4
2.6
3.4
5.0
5.9
6.2
5.6
4.5
2.8
1.4
0.7
40.7
Fort Ross
1.2
1.4
2.2
3.0
3.7
4.5
4.2
4.3
3.4
2.4
1.2
0.5
31.9
Healdsburg
1.2
1.5
2.4
3.5
5.0
5.9
6.1
5.6
4.5
2.8
1.4
0.7
40.8
Lincoln
1.2
1.7
2.8
4.7
6.1
7.4
8.4
7.3
5.4
3.7
1.9 1
1.2
51.9
Petaluma
1.2
1.5
2.8
3.7
4.6
5.6
4.6
5.7
4.5
2.9
1.4
0.9
39.6
Santa Rosa
1.2
1.7
2.8
3.7
5.0
6.0
6.1
5.9
4.5
2.9
1.5
0.7
42.0
Valley of the Moon
1.0
1.6
3.0
4.5
5.6
6.6
7.1
6.3
4.7
3.3
1.5
1.0
46.1
Windsor
0.9
1.6
3.0
4.5
5.5
6.5
6.5
5.9
4.4
3.2
1.4
1.0
44.2
STANISLAUS
Denair
1.0
1.9
3.6
4.7
7.0
7.9
8.0
6.1
5.3
3.4
1.5
1.0
51.4
La Grange
1.2
1.5
3.1
4.7
6.2
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.2
Modesto
0.9
1.4
3.2
4.7
6.4
7.7
8.1
6.8
5.0
3.4
1.4
0.7
49.7
Newman
1.0
1.5
3.2
4.6
6.2 1
7.4
8.1
6.7
5.0
3.4
1.4
0.7
49.3
24
Oakdale 1 1.2 1 1.5 1 3.2 1 4.7 6.2 1 7.7 1 8.1 7.1 5.1 1 3.4 1.4 0.7 1 50.3
Appendix A - Reference Evapotranspiration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
STANISLAUS
Patterson
1.3
2.1
4.2
5.4
7.9
8.6
8.2
6.6
5.8
4.0
1.9
1.3
57.3
Turlock
0.9
1.5
3.2
4.7
6.5
7.7
8.2
7.0
5.1
3.4
1.4
0.7
50.2
SUTTER
Nicolaus
0.9
1.6
3.2
4.9
6.3
7.5
8.0
6.9
5.2
3.4
1.5
0.9
50.2
Yuba City
1.3
2.1
2.8
4.4
5.7
7.2
7.1
6.1
4.7
3.2
1.2
0.9
46.7
TEHAMA
Corning
1.2
1.8
2.9
4.5
6.1
7.3
8.1
7.2
5.3
3.7
1.7 1
1.1
50.7
Gerber
1.0
1.8
3.5
5.0
6.6
7.9
8.7
7.4
5.8
4.1
1.8
1.1
54.7
Gerber Dryland
0.9
1.6
3.2
4.7
6.7
8.4
9.0
7.9
6.0
4.2
2.0
1.0
55.5
Red Bluff
1.2
1.8
2.9
4.4
5.9
7.4
8.5
7.3
5.4
3.5
1.7
1.0
51.1
TRINITY
Hay Fork
0.5
1.1
2.3
3.5
4.9
5.9
7.0
6.0
4.5
2.8
0.9
0.7
40.1
Weaverville
0.6
1.1
2.2
3.3
4.9
5.9
7.3
6.0
4.4
2.7
0.9
0.7
40.0
TULARE
Alpaugh
0.9
1.7
3.4
4.8
6.6
7.7
8.2
7.3
5.4
3.4
1.4
0.7
51.6
Badger
1.0
1.3
2.7 1
4.1
6.0
7.3
7.7
1 7.0
4.8
3.3
1.4
0.7
47.3
Delano
1.1
1.9
4.0
4.9
7.2
7.9
8.1
7.3
5.4
3.2
1.5
1.2
53.6
Dinuba
1.1
1.5
3.2
4.7
6.2
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.2
Lindcove
0.9
1.6
3.0
4.8
6.5
7.6
8.1
7.2
5.2
3.4
1.6
0.9
50.6
Porterville
1.2
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.3
3.4
1.4
0.7
52.1
Visalia
0.9
1.7
3.3
5.1
6.8
7.7
7.9
6.9
4.9
3.2
1.5
0.8
50.7
TUOLUMNE
Groveland
1.1
1.5
2.8
4.1
5.7
7.2
7.9
6.6
5.1
3.3
1.4
0.7
47.5
Sonora
1.1
1.5
2.8
4.1
5.8
7.2
7.9
6.7
5.1
3.2
1.4
0.7
47.6
VENTURA
Camarillo
2.2
2.5
3.7
4.3
5.0
5.2
5.9
5.4
4.2
1 3.0
2.5
2.1
46.1
Oxnard
2.2
2.5
3.2
3.7
4.4
4.6
5.4
4.8
4.0
3.3
2.4
2.0
42.3
Piru
2.8
2.8
4.1
5.6
6.0
6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Port Hueneme
2.0
2.3
3.3
4.6
4.9
4.9
4.9
5.0
3.7
3.2
2.5
2.2
43.5
Thousand Oaks
2.2
2.6
3.4
4.5
5.4
5.9
6.7
6.4
5.4
3.9
2.6
2.0
51.0
Ventura
2.2
2.6
3.2
3.8
4.6
4.7
5.5
4.9
4.1
3.4
2.5
2.0
43.5
YOLO
B ryte
0.9
1.7
3.3
5.0
6.4
7.5
7.9
7.0
5.2
3.5
1.6
1.0
51.0
Davis
1.0
1.9
3.3
5.0
6.4
7.6
8.2
7.1
5.4
4.0
1.8
1.0
52.5
Esparto
1.0
1.7
3.4
5.5
6.9
8.1
8.5
7.5
5.8
4.2
2.0
1.2
55.8
Winters
1.7
1.7
2.9
4.4
5.8
7.1
7.9
6.7
5.3
3.3
1.6
1 1.0
49.4
Woodland
1.0
1.8
3.2
4.7
6.1
7.7
8.2
7.2
5.4
3.7
1.7
1.0
51.6
Zamora
1.1
1.9
3.5
5.2
6.4
7.4
7.8
7.0
5.5
4.0
1.9
1.2
52.8
YUBA
Browns Valley
1.0
1.7
3.1
4.7
6.1
7.5
8.5
7.6
5.7
4.1
2.0
1.1
52.9
Brownsville
1.1
1 1.4
2.6
4.0
5.7
1 6.8
7.9
6.8
1 5.3
3.4
1 1.5
1 0.9
47.4
* The values in this table were derived from:
1) California Irrigation Management Information System (CIMIS);
2) Reference EvapoTranspiration Zones Map, UC Dept. of Land, Air & Water Resources and California Dept. of Water
Resources 1999; and
3) Reference Evapotranspiration for California, University of California, Department of Agriculture and Natural Resources
(1987) Bulletin 1922,
PQ-1
4) Determining Daily Reference Evapotranspiration, Cooperative Extension UC Division of Agriculture and Natural Resources
(1987), Publication Leaflet 21426
26
Appendix B — Sample Water Efficient Landscape Worksheet.
WATER EFFICIENT LANDSCAPE WORKSHEET
This worksheet is filled out by the project applicant and it is a required element of the Landscape Documentation Package.
Reference Evapotranspiration (ETo)
Hydrozone #
/Planting
Description
Plant
Factor (PF)
Irrigation
Methodb
Irrigation
Efficiency
(IE)`
ETAF
(PF/IE)
Landscape
Area (sq, ft,)
ETAF x Area
Estimated Total
Water Use
(ETWU)e
Regular Landscape Areas
Totals (A) (B)
Special Landscape Areas
Totals
(C)
(D)
ETWU Total
Maximum Allowed Water Allowance (MAWA)e
'Hydrozone #/Planting Description
E.g
1.) front lawn
2.) low water use plantings
3.) medium water use planting
blrrigation Method 'Irrigation Efficiency
overhead spray 0.75 for spray head
or drip 0.81 for drip
eMAWA (Annual Gallons Allowed) _ (Eto) (0.62) ( (ETAF x LA)
+ ((1 -ETA F) x SLA)]
where 0.62 is a conversion factor that converts acre -
inches per acre per year to gallons per square foot per
year, LA is the total landscape area in square feet, SLA
is the total special landscape area in square feet,
and ETAF is .55 for residential areas and 0.45 for non-
residential areas.
ETAF Calculations
Regular Landscape Areas
Total ETAF x Area
(B)
Total Area
(A)
Average ETAF
B _ A
All Landscape Areas
Total ETAF x Area (B+D)
Total Area (A+C)
dETWU (Annual Gallons Required) _
Eto x 0.62 x ETAF x Area
where 0.62 is a conversion
factor that converts acre -
inches per acre per year to
gallons per square foot per
year.
Average ETAF for Regular Landscape Areas must
be 0.55 or below for residential areas, and 0.45 or
below for non-residential areas.
27
Sitewide ETAF I (B+D) _ (A+C)
28
Appendix C — Sample Certificate of Completion.
CERTIFICATE OF COMPLETION
This certificate is filled out by the project applicant upon completion of the landscape project.
PART 1. PROJECT INFORMATION SHEET
Date
Project Name
Name of Project Applicant
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Project Address and Location:
Street Address
Parcel, tract or lot number, if available.
City
Latitude/Longitude (optional)
State
Zip Code
Property Owner or his/her designee:
Name
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Property Owner
"I/we certify that I/we have received copies of all the documents within the Landscape Documentation Package
and the Certificate of Completion and that it is our responsibility to see that the project is maintained in
accordance with the Landscape and Irrigation Maintenance Schedule."
Property Owner Signature
Date
Please answer the questions below:
1. Date the Landscape Documentation Package was submitted to the local agency
2. Date the Landscape Documentation Package was approved by the local agency
3. Date that a copy of the Water Efficient Landscape Worksheet (including the Water Budget Calculation) was
submitted to the local water purveyor
29
PART 2. CERTIFICATION OF INSTALLATION ACCORDING TO THE LANDSCAPE
DOCUMENTATION PACKAGE
"I/we certify that based upon periodic site observations, the work has been completed in accordance with the
ordinance and that the landscape planting and irrigation installation conform with the criteria and specifications of
the approved Landscape Documentation Package."
Signature*
Date
Name (print)
Telephone No.
Fax No.
Title
Email Address
License No. or Certification No.
Company
Street Address
City
State
Zip Code
*Signer of the landscape design plan, signer of the irrigation plan, or a licensed landscape contractor.
PART 3. IRRIGATION SCHEDULING
Attach parameters for setting the irrigation schedule on controller per ordinance Section 492.10.
PART 4. SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE
Attach schedule of Landscape and Irrigation Maintenance per ordinance Section 492.11.
PART 5. LANDSCAPE IRRIGATION AUDIT REPORT
Attach Landscape Irrigation Audit Report per ordinance Section 492.12.
PART 6. SOIL MANAGEMENT REPORT
Attach soil analysis report, if not previously submitted with the Landscape Documentation Package per ordinance
Section 492.6.
Attach documentation verifying implementation of recommendations from soil analysis report per ordinance
Section 492.6.
We
Appendix D — Prescriptive Compliance Option
(a) This appendix contains prescriptive requirements which may be used as a compliance option to the Model
Water Efficient Landscape Ordinance.
(b) Compliance with the following items is mandatory and must be documented on a landscape plan in order to
use the prescriptive compliance option:
(1) Submit a Landscape Documentation Package which includes the following elements:
(A) date
(B) project applicant
(C) project address (if available, parcel and/or lot number(s))
(D) total landscape area (square feet), including a breakdown of turf and plant material
(E) project type (e.g., new, rehabilitated, public, private, cemetery, homeowner -installed)
(F) water supply type (e.g., potable, recycled, well) and identify the local retail water purveyor if the
applicant is not served by a private well
(G) contact information for the project applicant and property owner
(H) applicant signature and date with statement, "I agree to comply with the requirements of the
prescriptive compliance option to the MWELO".
(2) Incorporate compost at a rate of at least four cubic yards per 1,000 square feet to a depth of six
inches into landscape area (unless contra -indicated by a soil test);
(3) Plant material shall comply with all of the following;
(A) For residential areas, install climate adapted plants that require occasional, little or no summer water
(average WUCOLS plant factor 0.3) for 75% of the plant area excluding edibles and areas using recycled
water; For non-residential areas, install climate adapted plants that require occasional, little or no summer
water (average WUCOLS plant factor 0.3) for 100% of the plant area excluding edibles and areas using
recycled water;
(B) A minimum three inch (Y) layer of mulch shall be applied on all exposed soil surfaces of planting
areas except in turf areas, creeping or rooting groundcovers, or direct seeding applications where mulch is
contraindicated.
(4) Turf shall comply with all of the following:
(A) Turf shall not exceed 25% of the landscape area in residential areas, and there shall be no turf in non-
residential areas;
(B) Turf shall not be planted on sloped areas which exceed a slope of 1 foot vertical elevation change for
every 4 feet of horizontal length;
(C) Turf is prohibited in parkways less than 10 feet wide, unless the parkway is adjacent to a parking strip
and used to enter and exit vehicles. Any turf in parkways must be irrigated by sub -surface irrigation or by
other technology that creates no overspray or runoff.
(5) Irrigation systems shall comply with the following:
(A) Automatic irrigation controllers are required and must use evapotranspiration or soil moisture sensor
data and utilize a rain sensor.
(B) Irrigation controllers shall be of a type which does not lose programming data in the event the primary
power source is interrupted.
(C) Pressure regulators shall be installed on the irrigation system to ensure the dynamic pressure of the
system is within the manufacturers recommended pressure range.
(D) Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) shall be installed as close
as possible to the point of connection of the water supply.
(E) All irrigation emission devices must meet the requirements set in the ANSI standard, ASABE/ICC
802-2014. "Landscape Irrigation Sprinkler and Emitter Standard," All sprinkler heads installed in the
landscape must document a distribution uniformity low quarter of 0.65 or higher using the protocol
defined in ASABE/ICC 802-2014.
(F) Areas less than ten (10) feet in width in any direction shall be irrigated with subsurface irrigation or
other means that produces no runoff or overspray.
31
(6) For non-residential projects with landscape areas of 1,000 sq. ft. or more, a private submeter(s) to
measure landscape water use shall be installed.
(c) At the time of final inspection, the permit applicant must provide the owner of the property with a certificate
of completion, certificate of installation, irrigation schedule and a schedule of landscape and irrigation
maintenance.
W
ORDINANCE NO. 1248
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
VERNON AMENDING CHAPTER 25 OF THE VERNON
MUNICIPAL CODE AND ADOPTING BY REFERENCE THE
DEPARTMENT OF WATER RESOURCES STATE MODEL
LANDSCAPING ORDINANCE; AND REPEALING ALL
ORDINANCES OR PARTS OF ORDINANCES IN CONFLICT
THEREWITH
WHEREAS, the City of Vernon (the "City") is a municipal
corporation and a chartered city of the State of California organized
and existing under its Charter and the Constitution of the State of
California; and
WHEREAS, on October 26, 2009, the City Council of the City
of Vernon adopted Ordinance No. 1161 amending the code of the City of
Vernon by amending Sections 25.100, 25.101, 25.102, 25.103, 25.104,
25.105, 25.106(b), 25.107(a); adding a new Section 25.112; and
adopting by reference the Department of Water Resources State Model
Landscaping Ordinance (the "Model Landscaping Ordinance"); and
WHEREAS, Governor Brown's drought executive order of
April 1, 2015, directed the Department of Water Resources ("DWR") to
update the State's Model Water Efficient Landscape Ordinance through
expedited regulation, establishing even stricter water conservation
measures; and
WHEREAS, the California Water Commission approved the
revised Model Landscaping Ordinance on July 15, 2015, and gave local
agencies until December 1, 2015, to adopt the Model Landscaping
Ordinance or a Local Ordinance which must be at least as effective in
conserving water as the Model Landscaping Ordinance.
WHEREAS, if a City took no action with respect to adopting
an ordinance by the established deadline, the DWR's Model Landscaping
Ordinance would be adopted by statute on January 1, 2016; and
WHEREAS, significant revisions have been made which require
the City to update its existing Water Efficient Landscape Application
and amend Chapter 25 of the Vernon Municipal Code; and
WHEREAS, with the revised Model Landscaping Ordinance, the
size of landscapes subject to the proposed ordinance has been reduced
from 2,500 square feet to 500 square feet in new developments and the
size threshold applies to residential, commercial, industrial and
institutional projects that require a permit, plan check or design
review; and
WHEREAS, the size threshold for existing landscapes that
are being rehabilitated has not changed, remaining at 2,500 square
feet; only existing landscapes that are included in a building or
landscape permit, plan check or design review are subject to the
proposed ordinance; and
WHEREAS, by memorandum dated November 7, 2017, the Director
of Public Works has recommended that the City adopt by reference the
Model Water Efficient Landscape Ordinance of the Department of Water
Resources reducing the threshold of landscapes in new developments
subject to the Model Landscaping Ordinance from 2,500 square feet to
500 square feet; and
WHEREAS, a duly -noticed public hearing has been held to
consider the proposed ordinance changes, and public testimony has
been received and considered; and
WHEREAS, the City Council finds and determines that it is
in the interests of the public health, safety and welfare of the City
of Vernon, its residents, businesses and employees to implement the
recommendations of the Director of Public Works, as set forth in this
- 2 -
Ordinance.
THE CITY COUNCIL OF THE CITY OF VERNON HEREBY ORDAINS:
SECTION 1: The City Council of the City of Vernon hereby
finds and determines that all of the foregoing recitals are true and
correct.
SECTION 2: The City Council of the City of Vernon hereby
amends Chapter 25 of the Vernon Municipal Code and adopts by
reference the Model Water Efficient Landscape Ordinance of the
Department of Water Resources (the "Model Ordinance") as set forth in
Exhibit A which is attached hereto and incorporated by reference.
Three (3) copies of the Model Ordinance so adopted shall be filed and
kept on file for use and examination by the public in the office of
the City Clerk.
SECTION 3: Pursuant to the California Environmental
Quality Act (Public Resources Code Section 21000 et seq.) ("CEQA")
and the State CEQA Guidelines (California Code of Regulations, Title
14, Section 15000 et seq.), the City Council of the City of Vernon
hereby finds that adoption of this Ordinance is categorically exempt
from CEQA review under State CEQA Guidelines Section 15308, because
it has the effect of limiting rather than authorizing the use of
water supplies and resources, and constitutes an action by the City
to assure the maintenance, enhancement, and protection of the
environment through the conservation of water resources. Therefore,
the adoption of this Ordinance is exempt from CEQA.
SECTION 4: Any ordinance, part of an ordinance, or code
section in conflict with this Ordinance is hereby repealed.
SECTION 5: Severability. If any chapter, article,
section, subsection, subdivision, paragraph, sentence, clause,
- 3 -
phrase, or word in this Ordinance or any part thereof is for any
reason held to be unconstitutional or invalid or ineffective by any
court of competent jurisdiction, such decision shall not affect the
validity or effectiveness of the remaining portions of this Ordinance
or any part thereof. The City Council hereby declares that it would
have adopted this Ordinance and each chapter, article, section,
subsection, subdivision, paragraph, sentence, clause or phrase
thereof, irrespective of the fact that any one or more chapters,
articles, sections, subsections, subdivisions, paragraphs, sentences,
clauses, phrases or words be declared unconstitutional, or invalid,
or ineffective.
SECTION 6: Book of Ordinances.
The City Clerk, or Deputy
City Clerk, shall attest and certify to the adoption of this
Ordinance and shall cause this Ordinance and the City Clerk's, or
Deputy City Clerk's, certification to be entered in the Book of
Ordinances of the Council of this City. The City Clerk, or Deputy
City Clerk, shall cause this ordinance to be published or posted as
required by law.
- 4 -
SECTION 7: Effective Date. This Ordinance shall go into
effect and be in full force and effect at 12:01 a.m. on the thirty-
first (31st) day after its passage.
APPROVED AND ADOPTED this 7th day of November, 2017.
ATTEST:
City Clerk / Deputy City Clerk
APPROVED AS TO FORM:
Brian Byun,
Senior Deputy City Attorney
Name:
Title: Mayor / Mayor Pro-Tem
- 5 -
STATE OF CALIFORNIA )
) ss
COUNTY OF LOS ANGELES )
I, , City Clerk / Deputy City Clerk of the City
of Vernon, do hereby certify that the foregoing Ordinance, being
Ordinance No. 1248 was duly and regularly introduced at a regular
meeting of the City Council of the City of Vernon, held in the City
of Vernon on Tuesday, November 7, 2017, and thereafter adopted at a
meeting of said City Council held on Tuesday, 2017, by
the following vote:
AYES: Councilmembers:
NOES: Councilmembers:
ABSENT: Councilmembers:
And thereafter was duly signed by the Mayor or Mayor Pro-Tem of
the City of Vernon.
Executed this
California.
(SEAL)
day of
2017, at Vernon,
City Clerk / Deputy City Clerk
- 6 -
EXHIBIT A
TEXT OF PROPOSED REGULATIONS
NOTE:
• Text proposed to be added is displayed in underlined type.
• Text proposed to be deleted is displayed in strikeout type.
In Division 2, Title 23, California Code of Regulations, to amend Chapter 2.7 Model Water Efficient
Landscape Ordinance, Sections 490 through 495, to read as follows:
California Code of Regulations
Title 23. Waters
Division 2. Department of Water Resources
Chapter 2.7. Model Water Efficient Landscape Ordinance
§ 490. Purpose.
(a) The State Legislature has found:
(1) that the waters of the state are of limited supply and are subject to ever increasing demands;
(2) that the continuation of California's economic prosperity is dependent on the availability of
adequate supplies of water for future uses;
(3) that it is the policy of the State to promote the conservation and efficient use of water and to
prevent the waste of this valuable resource;
(4) that landscapes are essential to the quality of life in California by providing areas for active
and passive recreation and as an enhancement to the environment by cleaning air and water,
preventing erosion, offering fire protection, and replacing ecosystems lost to development; aa4
(5) that landscape design, installation, maintenance and management can and should be water
efficient; and
(6) that Section 2 of Article X of the California Constitution specifies that the right to use water
is limited to the amount reasonably required for the beneficial use to be served and the right does
not and shall not extend to waste or unreasonable method of use.
(b) Consistent with the legislative findings, the purpose of this model ordinance is to:
(1) promote the values and benefits of landscaping_ practices that integrate and go beyond the
conservation and efficient use of water;
and other- e e
s as effieiently as possible;
(2) establish a structure for planning, designing, installing, maintaining and managing water
efficient landscapes in new construction and rehabilitated projects by encouraging the use of a
watershed approach that requires cross -sector collaboration of industry, government and property
owners to achieve the many benefits possible;
(3) establish provisions for water management practices and water waste prevention for existing
landscapes;
(4) use water efficiently without waste by setting a Maximum Applied Water Allowance as an
upper limit for water use and reduce water use to the lowest practical amount;
(5) promote the benefits of consistent landscape ordinances with neighboring local and regional
agencies;
(6) encourage local agencies and water purveyors to use economic incentives that promote the
efficient use of water, such as implementing a tiered -rate structure; and
(7) encourage local agencies to designate the necessary authority that implements and enforces
the provisions of the Model Water Efficient Landscape Ordinance or its local landscape
ordinance.
(c) Landscqpes that are planned designed installed managed and maintained with the watershed based
approach can improve California's environmental conditions and provide benefits and realize
sustainability_goals Such landscqpes will make the urban environment resilient in the face of climatic
extremes Consistent with the legislative findings and purpose of the Ordinance, conditions in the urban
setting will be improved by:
(1) Creating the conditions to sport life in the soil by reducing compaction, incorporating
organic matter that increases water retention and promoting productive plant growth that leads
to more carbon storage oxygen production, shade, habitat and esthetic benefits.
2
(2) Minimizing energy use by reducing irrigation water requirements, reducing reliance on
petroleum based fertilizers and pesticides, and planting climate appropriate shade trees in urban
areas.
(3) Conserving water by capturing and reusing rainwater and graywater wherever possible and
selecting climate appropriate plants that need minimal supplemental water after establishment.
(4) Protecting air and water quality by reducing power equipment use and landfill disposal trips,
selecting recycled and locally sourced materials, and using compost, mulch and efficient
irrigationL equipment to prevent erosion.
(5) Protectingexisting habitat and creating new habitat by choosing local native plants, climate
adapted non -natives and avoiding invasive plants. Utilizing integrated ted pest management with
least toxic methods as the first course of action.
Note: Authority cited: Section 65593, Government Code. Reference: Sections 65591, 65593 and 65596,
Government Code.
§ 490.1. Applicability.
(a) After januafy 1, 2,December 1 2015 and consistent with Executive Order No. B-29-15, this
ordinance shall apply to all of the following landscape projects:
(1) new construction projects with an aggregate landscape area equal to or greater than 500
square feet requiring a building or landscape permit plan check or design review;
(2) rehabilitated landscape projects with an aggregate landscape area equal to or greater than
2,500 square feet requiring a building or landscape permit plan check, or design review;
(1) new eenstmetion and rehabilitated res for- rubli a e, rM l rr
iv
development pr-ejeetswith a landseape area equal to or- gFeater- than 2,500 squafe feet r-equir-ing a
,
(2) fiew eenstfuetion and Fehabiliwed landseapes whieh are developer- installed in single family
and multi family pr-E�eets with a landseape area equal to of gr-ea4er- than 7
a building or- landseape 5 plan 7 or design reviewl
l
single family and multi family r-esidential pf:ej Skets v-4th � tetal pr-ej eet landseape area equal to of
gr-ee4er- than f
000 square feet r-equir-ing a building or- landseape pefmit, plan eheek or- design
a(4) existing landscapes limited to Sections 493, 493.1 and 493.2; and
(-5) cemeteries. Recognizing the special landscape management needs of cemeteries, new and
rehabilitated cemeteries are limited to Sections 492.4, 492.11, and 492.12; and existing
cemeteries are limited to Sections 493, 493. 1, and 493.2.
(b) For local land use agencies working together to develop a regional water efficient landscape
ordinance the reporting requirements of this ordinance shall become effective December 1, 2015 and
the remainder of this ordinance shall be effective no later than February 1, 2016.
(c) Anyproject with an aggregate landscape area of 2,500 square feet or less may comply with the
performance requirements of this ordinance or conform to the prescriptive measures contained in Appendix
D.
(d) For projects using treated or untreated graywater or rainwater captured on site, any lot or parcel within
the project that has less than 2500 sq ft of landscape and meets the lot or parcel's landscape water
requirement (Estimated Total Water Use) entirely with treated or untreated gaanwater or through stored
rainwater captured on site is subject only to Appendix D section (5).
(be) This ordinance does not apply to:
(1) registered local, state or federal historical sites;
(2) ecological restoration projects that do not require a permanent irrigation system;
(3) mined -land reclamation projects that do not require a permanent irrigation system; or
(4) existina plant collections, as part of botanical gardens and arboretums open to the public.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 491. Definitions.
The terms used in this ordinance have the meaning set forth below:
(a) "applied water" means the portion of water supplied by the irrigation system to the landscape.
(b) "automatic irrigation controller" means an aetenatie timing device used to remotely control valves
that operate an irrigation system. Automatic irrigation controllers are able to self -adjust and schedule
irrigation events using either evapotranspiration (weather -based) or soil moisture data.
(c) "backflow prevention device" means a safety device used to prevent pollution or contamination of
the water supply due to the reverse flow of water from the irrigation system.
(d) "Certificate of Completion" means the document required under Section 492.9.
(e) "certified irrigation designer" means a person certified to design irrigation systems by an accredited
academic institution, a professional trade organization or other program such as the US Environmental
Protection Agency's WaterSense irrigation designer certification program and Irrigation Association's
Certified Irrigation Designer program.
(f) "certified landscape irrigation auditor" means a person certified to perform landscape irrigation
audits by an accredited academic institution, a professional trade organization or other program such as
the US Environmental Protection Agency's WaterSense irrigation auditor certification program and
Irrigation Association's Certified Landscape Irrigation Auditor program.
(g) "check valve" or "anti -drain valve" means a valve located under a sprinkler head, or other location in
the irrigation system, to hold water in the system to prevent drainage from sprinkler heads when the
sprinkler is off.
(h) "common interest developments" means community apartment projects, condominium projects,
planned developments, and stock cooperatives per Civil Code Section 1351.
(i) "compost" means the safe and stable product of controlled biologic decomposition of organic
materials that is beneficial to plant growth.
(+j) "conversion factor (0.62)" means the number that converts acre -inches per acre per year to gallons
per square foot per year.
(k) "distribution uniformity" means the measure of the uniformity of irrigation water over a defined
area.
q1) "drip irrigation" means any non -spray low volume irrigation system utilizing emission devices with
a flow rate measured in gallons per hour. Low volume irrigation systems are specifically designed to
apply small volumes of water slowly at or near the root zone of plants.
(kM) "ecological restoration project" means a project where the site is intentionally altered to establish a
defined, indigenous, historic ecosystem.
(Ln) "effective precipitation" or "usable rainfall" (Eppt) means the portion of total precipitation which
becomes available for plant growth.
(rno) "emitter" means a drip irrigation emission device that delivers water slowly from the system to the
soil.
(np) "established landscape" means the point at which plants in the landscape have developed significant
root growth into the soil. Typically, most plants are established after one or two years of growth.
(e_q) "establishment period of the plants" means the first year after installing the plant in the landscape or
the first two years if irrigation will be terminated after establishment. Typically, most plants are
established after one or two years of growth. Native habitat mitigation areas and trees may need three to
five years for establishment.
(pr) "Estimated Total Water Use" (ETWU) means the total water used for the landscape as described in
Section 492.4.
4
(qs) "ET adjustment factor" (ETAF) means a factor of 9.70.55 for residential areas and 0.45 for non-
residential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and
irrigation efficiency, two major influences upon the amount of water that needs to be applied to the
landscape. A eembined plant mix with a site wide aver -age of 0.5 is the basis of the plant faeter- pei4i
ET Adjustment Faeter- is The ETAF for it new and existing (non -rehabilitated) Special
Landscape Areas shall not exceed 1.0. The ETAF for existing non -rehabilitated landscapes is 0.8.
(q) "evapotranspiration rate" means the quantity of water evaporated from adjacent soil and other
surfaces and transpired by plants during a specified time.
(su) "flow rate" means the rate at which water flows through pipes, valves and emission devices,
measured in gallons per minute, gallons per hour, or cubic feet per second.
(v) "flow sensor" means an inline device installed at the supply point of the irrigation system that
produces a repeatable signal proportional to flow rate. Flow sensors must be connected to an automatic
irrigation controller, or flow monitor capable of receiving flow signals and operating master valves. This
combination flow sensor/controller may also function as a landscape water meter or submeter.
W "friable" means a soil condition that is easily crumbled or loosely compacted down to a minimum
depth per planting material requirements whereby the root structure of newly planted material will be
allowed to spread unimpeded.
(x) "Fuel Modification Plan Guideline" means guidelines from a local fire authority to assist residents
and businesses that are developing land or building structures in a fire hazard severity zone.
W "graywater" means untreated wastewater that has not been contaminated by any toilet discharge, has
not been affected by infectious contaminated or unhealthy bodily wastes, and does not present a threat
from contamination by unhealthful processing manufacturing,operating wastes. "Graywater"
includes but is not limited to wastewater from bathtubs showers, bathroom washbasins, clothes
washing machines and laundry tubs but does not include wastewater from kitchen sinks or
dishwashers. Health and Safety Code Section 17922.12.
(Oz "hardscapes" means any durable material (pervious and non -pervious).
"
fer- a single family r-esidenee or- installed by a lieensed eentmeter- hired by a hemeewner. A ,
dwellings.for- purposes of this or -din , . , ion who oraeupies the dwelling he or- she owns. This e*eludes
(� (�) "hydrozone" means a portion of the landscaped area having plants with similar water needs and
rooting depth. A hydrozone may be irrigated or non -irrigated.
fw) "infiltration rate" means the rate of water entry into the soil expressed as a depth of water per
unit of time (e.g., inches per hour).
cc (*) "invasive plant species" means species of plants not historically found in California that spread
outside cultivated areas and can damage environmental or economic resources. Invasive species may be
regulated by county agricultural agencies as noxious species. '!Na*i sari" means ^„" "'d as
a ib a in the a and A ukti,-al Code, Seetio„ 5004 Lists of invasive plants are maintained at the
California Invasive Plant Inventory and USDA invasive and noxious weeds database.
(y) "irrigation audit" means an in-depth evaluation of the performance of an irrigation system
conducted by a Certified Landscape Irrigation Auditor. An irrigation audit includes, but is not limited to:
inspection, system tune-up, system test with distribution uniformity or emission uniformity, reporting
overspray or runoff that causes overland flow, and preparation of an irrigation schedule. The audit must
be conducted in a manner consistent with the Irrigation Association's Landscape Irrigation Auditor
Certification program or other U.S. Environmental Protection Agency "Watersense" labeled auditing
program.
ee (z) "irrigation efficiency" (IE) means the measurement of the amount of water beneficially used
divided by the amount of water applied. Irrigation efficiency is derived from measurements and estimates
of irrigation system characteristics and management practices. The irrigation efficiency
5
for purposes of this ordinance are 0.75 for overhead spray devices and 0.81 for drip systems.is 0.71.
(aa) "irrigation survey" means an evaluation of an irrigation system that is less detailed than an
irrigation audit. An irrigation survey includes, but is not limited to: inspection, system test, and written
recommendations to improve performance of the irrigation system.
(gg) (Ib) "irrigation water use analysis" means an analysis of water use data based on meter readings
and billing data.
(es) "landscape architect" means a person who holds a license to practice landscape architecture in
the state of California Business and Professions Code, Section 5615.
ii (dd) "landscape area" means all the planting areas, turf areas, and water features in a landscape
design plan subject to the Maximum Applied Water Allowance calculation. The landscape area does not
include footprints of buildings or structures, sidewalks, driveways, parking lots, decks, patios, gravel or
stone walks, other pervious or non -pervious hardscapes, and other non -irrigated areas designated for
non -development (e.g., open spaces and existing native vegetation).
W) (ee) "landscape contractor" means a person licensed by the state of California to construct, maintain,
repair, install, or subcontract the development of landscape systems.
(€o "Landscape Documentation Package" means the documents required under Section 492.3.
(gg) "landscape project" means total area of landscape in a project as defined in "landscape area" for
the purposes of this ordinance, meeting requirements under Section 490.1.
(mm) "landscape water meter" means an inline device installed at the irrigation supply point that
measures the flow of water into the irrigation system and is connected to a totalizer to record water use.
nn (W "lateral line" means the water delivery pipeline that supplies water to the emitters or sprinklers
from the valve.
00 (i) "local agency" means a city or county, including a charter city or charter county, that is
responsible for adopting and implementing the ordinance. The local agency is also responsible for the
enforcement of this ordinance, including but not limited to, approval of a permit and plan check or
design review of a project.
t& �j4 "local water purveyor" means any entity, including a public agency, city, county, or private
water company that provides retail water service.
(gqJ (kk-) "low volume irrigation" means the application of irrigation water at low pressure through a
system of tubing or lateral lines and low -volume emitters such as drip, drip lines, and bubblers. Low
volume irrigation systems are specifically designed to apply small volumes of water slowly at or near
the root zone of plants.
(rr) (}1-} "main line" means the pressurized pipeline that delivers water from the water source to the valve
or outlet.
(ss) "master shut-off valve" is an automatic valve installed at the irrigation supply point which controls
water flow into the irrigation system When this valve is closed water will not be supplied to the
irrigation system A master valve will greatly reduce any water loss due to a leaky station valve.
tt ( "Maximum Applied Water Allowance" (MAWA) means the upper limit of annual applied
water for the established landscaped area as specified in Section 492.4. It is based upon the area's
reference evapotranspiration, the ET Adjustment Factor, and the size of the landscape area. The
Estimated Total Water Use shall not exceed the Maximum Applied Water Allowance. Special
Landscape Areas, including recreation areas, areas permanently and solely dedicated to edible plants
such as orchards and vegetable gardens, and areas irrigated with recycled water are subject to the
MAWA with an ETAF not to exceed 1.0. MAWA = (ETo) (0.62) 1(ETAF x LA) + ((1-ETAF) x SLA)1
(uu) "median" is an area between opposing lanes of traffic that may be unplanted or planted with trees,
shrubs perennials and ornamental grasses.
vv "microclimate" means the climate of a small, specific area that may contrast with the climate of
the overall landscape area due to factors such as wind, sun exposure, plant density, or proximity to
reflective surfaces.
9
(ww) 00 "mined -land reclamation projects" means any surface mining operation with a reclamation
plan approved in accordance with the Surface Mining and Reclamation Act of 1975.
xx (pp-) "mulch" means any organic material such as leaves, bark, straw, compost, or inorganic mineral
materials such as rocks, gravel, a*dor decomposed granite left loose and applied to the soil surface for
the beneficial purposes of reducing evaporation, suppressing weeds, moderating soil temperature, and
preventing soil erosion.
()3� (qq) "new construction" means, for the purposes of this ordinance, a new building with a landscape
or other new landscape, such as a park, playground, or greenbelt without an associated building.
(zz) "non-residential landscape" means landscapes in commercial, institutional, industrial and public
settings that may have areas designated for recreation or public assembly. It also includes portions of
common areas of common interest developments with designated recreational areas.
aaa (ff4 "operating pressure" means the pressure at which the parts of an irrigation system are
designed by the manufacturer to operate.
b�) (so "overhead sprinkler irrigation systems" or "overhead sprairrigation s sty means systems
that deliver water through the air (e.g., spray heads and rotors).
ccc (4) "overspray" means the irrigation water which is delivered beyond the target area.
(ddd)"parkway" means the area between a sidewalk and the curb or traffic lane. It mayplanted or
unplanted, and with or without pedestrian egress.
eee (ur) "permit" means an authorizing document issued by local agencies for new construction or
rehabilitated landscapes.
(fff) ( "pervious" means any surface or material that allows the passage of water through the material
and into the underlying soil.
(ggg) (YPN) "plant factor" or "plant water use factor" is a factor, when multiplied by ETo, estimates the
amount of water needed by plants. For purposes of this ordinance, the plant factor range for very low
water use plants is 0 to 0.1, the plant factor range for low water use plants is 00_1 to 0.3, the plant factor
range for moderate water use plants is 0.4 to 0.6, and the plant factor range for high water use plants is
0.7 to 1.0. Plant factors cited in this ordinance are derived from the
24W publication "Water Use Classification of Landscape Species". Plant factors may also be obtained
from horticultural researchers from academic institutions or professional associations as approved by the
California Department of Water Resources (DWR).
(n*) "pieeipitatiearate" fneans the rate of appheation of water- „ e red : inehes per- he,,.
ham) (yy} "project applicant" means the individual or entity submitting a Landscape Documentation
Package required under Section 492.3, to request a permit, plan check, or design review from the local
agency. A project applicant may be the property owner or his or her designee.
iii) " "rain sensor" or "rain sensing shutoff device" means a component which automatically
suspends an irrigation event when it rains.
(a* "record drawing" or "as-builts" means a set of reproducible drawings which show significant
changes in the work made during construction and which are usually based on drawings marked up in
the field and other data furnished by the contractor.
(kkk) (bW "recreational area" means areas excluding private single family residential areas, debated
designated tefor active play, recreation or public assembly su&-&sin parks, sports fields, picnic orb
amphitheaters armor golf courses where tur- f provides a playing suitfaeez tees, fairways, roughs,
surrounds and greens.
1(_11) (eeo "recycled water," "reclaimed water," or "treated sewage effluent water" means treated or
recycled waste water of a quality suitable for nonpotable uses such as landscape irrigation and water
features. This water is not intended for human consumption.
mmm "reference evapotranspiration" or "ETo" means a standard measurement of environmental
parameters which affect the water use of plants. ETo is expressed in inches per day, month, or year as
represented in Appendix A Section 495.' , and is an estimate of the evapotranspiration of a large field of
four- to seven-inch tall, cool -season grass that is well watered. Reference evapotranspiration is used as
7
the basis of determining the Maximum Applied Water Allowances so that regional differences in climate
can be accommodated.
(nnn) "Regional Water Efficient Landscape Ordinance" means a local Ordinance adopted by two or
more local agencies water suppliers and other stakeholders for implementing a consistent set of
landscape provisions throughout a geographical region.Regional ordinances are strongly encouraged to
provide a consistent framework for the landscape industry and applicants to adhere to.
0oo (eee) "rehabilitated landscape" means any relandscaping project that requires a permit, plan check,
or design review, meets the requirements of Section 490.1, and the modified landscape area is equal to
or greater than 2,500 square feet, is 5094 ef the total lama..,...e area, and the medifi — atiens are eempleted
wit -kin one yeaf.
(ppp) "residential landscape" means landscapes surrounding single or multifamily homes.
(aaa) (ffO "run off' means water which is not absorbed by the soil or landscape to which it is applied
and flows from the landscape area. For example, run off may result from water that is applied at too
great a rate (application rate exceeds infiltration rate) or when there is a slope.
(rrrh(ggg) "soil moisture sensing device" or "soil moisture sensor" means a device that measures the
amount of water in the soil. The device may also suspend or initiate an irrigation event.
sss (hhh) "soil texture" means the classification of soil based on its percentage of sand, silt, and clay.
(t j (44 "Special Landscape Area" (SLA) means an area of the landscape dedicated solely to edible
plants, recreational areas, areas irrigated with recycled water, or water features using recycled water -and
areas dedieated to aetive play sueh as par4s, spet4s fields, golf eouFses, and where turf PFOVideS a
wee.
uuu (jam "sprinkler head" or "spray head" means a device which delivers water through a nozzle.
vvv (Md k) "static water pressure" means the pipeline or municipal water supply pressure when water is
not flowing.
(www) (44 "station" means an area served by one valve or by a set of valves that operate
simultaneously.
xxx "swing joint" means an irrigation component that provides a flexible, leak -free connection
between the emission device and lateral pipeline to allow movement in any direction and to prevent
equipment damage.
(y,) "submeter" means a metering device to measure water applied to the landscape that is installed
after the primary utility water meter.
zzz ( "turf' means a ground cover surface of mowed grass. Annual bluegrass, Kentucky bluegrass,
Perennial ryegrass, Red fescue, and Tall fescue are cool -season grasses. Bermudagrass, Kikuyugrass,
Seashore Paspalum, St. Augustinegrass, Zoysiagrass, and Buffalo grass are warm -season grasses.
aaaa (eee) 'valve" means a device used to control the flow of water in the irrigation system.
Statement"
bb bbb) (PPP}"water conserving plant species" means a plant species identified as having a very low or
low plant factor.
cccc (tom} "water feature" means a design element where open water performs an aesthetic or
recreational function. Water features include ponds, lakes, waterfalls, fountains, artificial streams, spas,
and swimming pools (where water is artificially supplied). The surface area of water features is included
in the high water use hydrozone of the landscape area. Constructed wetlands used for on -site wastewater
treatment or stormwater best management practices that are not irrigated and used solely for water
treatment or stormwater retention are not water features and, therefore, are not subject to the water
budget calculation.
d( ddd) (F) "watering window" means the time of day irrigation is allowed.
eeee (sss) "WUCOLS" means the Water Use Classification of Landscape Species published by the
University of California Cooperative Extension; and the Department of Water Resources and the Bum
F Reel ,.,.,atien 2 *Q014.
Note: Authority cited: Section 65595, Government Code. Reference: Sections 65592 and 65596,
Government Code.
§ 492. Provisions for New Construction or Rehabilitated Landscapes.
(a) A local agency may designate by mutual agreement, another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.4. Water Efficient Landscape Worksheet.
(a) A project applicant shall complete the Water Efficient Landscape Worksheet in Appendix B which
contains information on the plant factor, irrigation method, irrigation efficiency, and area associated
with each hydrozone Calculations are then made to show that the evapotranspiration adjustment factor
(ETAF) for the landscape project does not exceed a factor of 0.55 for residential areas and 0.45 for non-
residential areas exclusive of Special Landscape Areas The ETAF for a landscape project is based on
the plant factors and irrigation methods selected. The Maximum Applied Water Allowance is calculated
based on the maximum ETAF allowed (0.55 for residential areas and 0.45 for non-residential areas) and
expressed as annual gallons required. The Estimated Total Water Use (ETWU) is calculated based on
the plants used and irrigation method selected for the landscape design. ETWU must be below the
(2) awater- budget ealeulation (see Appendi* 13, Seetion B) tor- the landseape pr-qjeet. For- the
(1) In calculating the Maximum Applied Water Allowance and Estimated Total Water Use, a
project applicant shall use the ETo values from the Reference Evapotranspiration Table in
Appendix A. For geographic areas not covered in Appendix A, use data from other cities located
nearby in the same reference evapotranspiration zone, as found in the CIMIS Reference
Evapotranspiration Zones Map, Department of Water Resources, 1999.
(b) Water budget calculations shall adhere to the following requirements:
(1) The plant factor used shall be from WUCOLS or from horticultural researchers with academic
institutions or professional associations as approved by the California Department of Water
Resources (DWR). The plant factor ranges from 0 to 0.1 for very low water using plants, 0.1 to
0.3 for low water use plants, from 0.4 to 0.6 for moderate water use plants, and from 0.7 to 1.0 for
high water use plants.
(2) All water features shall be included in the high water use hydrozone and temporarily irrigated
areas shall be included in the low water use hydrozone.
(3) All Special Landscape Areas shall be identified and their water use calculated as shown in
Appendix B described below.
(4) ETAF for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
landseape
The ET-e values used in these ealeulations are
represent an existing and/er- planned
pr-qjeet.
N1
evapotranspiration data, sueh as ffem the Califemia kFigeition Management information System
(GIN41S), other- equivalent data, or. sail me-4-ituri-a. -Sefisof: deAa.
'I N-AA
..
�•
,.- ,.
RWI
•
STAA
_
MWALMOV-1
�•
FTWII PFxHA 1 cr e I
IE
Where:
rrno
10
. r�r.�Ersss�a
�ff&WAYSTIM
•..
24,700
0.71
••
. -
LW
�•
.
.Itfp rim
�(51 'T / C 2J,500 nnn I
0.71
— (91 68) (93,099 * 00)
— 1111936 a11
,, ..eas o • Al
•A ATATAXIIIIIIIII•
11
•M VALINHAW2 = wiffa-Ifix-ART.91
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.5. Soil Management Report.
(a) In order to reduce runoff and encourage healthy plant growth, a soil management report shall be
completed by the project applicant, or his/her designee, as follows:
(1) Submit soil samples to a laboratory for analysis and recommendations.
(A) Soil sampling shall be conducted in accordance with laboratory protocol, including
protocols regarding adequate sampling depth for the intended plants.
(B) The soil analysis mayshall include:
1. soil texture;
2. infiltration rate determined by laboratory test or soil texture infiltration rate
table;
3. pH;
4. total soluble salts;
5. sodium;
6. percent organic matter; and
7. recommendations.
(C) In projects with multiple landscape installations (i.e. production home
developments) a soil sampling rate of 1 in 7 lots or approximately 15% will satisfy this
requirement Large landscape projects shall sample at a rate equivalent to 1 in 7 lots.
(2) The project applicant, or his/her designee, shall comply with one of the following:
(A) If significant mass grading is not planned, the soil analysis report shall be submitted
to the local agency as part of the Landscape Documentation Package; or
(B) If significant mass grading is planned, the soil analysis report shall be submitted to
the local agency as part of the Certificate of Completion.
(3) The soil analysis report shall be made available, in a timely manner, to the professionals
preparing the landscape design plans and irrigation design plans to make any necessary
adjustments to the design plans.
(4) The project applicant, or his/her designee, shall submit documentation verifying
implementation of soil analysis report recommendations to the local agency with Certificate of
Completion.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.6. Landscape Design Plan.
(a) For the efficient use of water, a landscape shall be carefully designed and planned for the intended
function of the project. A landscape design plan meeting the following design criteria shall be submitted
as part of the Landscape Documentation Package.
(1) Plant Material
(A) Any plant may be selected for the landscape, providing the Estimated Total Water
Use in the landscape area does not exceed the Maximum Applied Water Allowance. Te
eneour-age the effiriont e f. ate the f llowing is highly o eaded Methods to
achieve water efficiency shall include one or more of the following:
12
1. protection and preservation of native species and natural vegetation;
2. selection of water -conserving plant, tree and turf species, especially local native
plants;
3. selection of plants based on local climate suitability, disease and pest
resistance;
4. selection of trees based on applicable local tree ordinances or tree shading
guidelines and size at maturity as appropriate for the planting area; and
5. selection of plants from local and regional landscape program plant lists.
6. selection of plants from local Fuel Modification Plan Guidelines.
(B) Each hydrozone shall have plant materials with similar water use, with the exception
of hydrozones with plants of mixed water use, as specified in Section 492.7(a)(2)(D).
(C) Plants shall be selected and planted appropriately based upon their adaptability to the
climatic, geologic, and topographical conditions of the project site. To eneeur-ago f�
effleienuse f-..e«the fellewing is high!), eeemmended Methods to achieve water
efficiency shall include one or more of the following:
1. use the Sunset Western Climate Zone System which takes into account
temperature, humidity, elevation, terrain, latitude, and varying degrees of
continental and marine influence on local climate;
2. recognize the horticultural attributes of plants (i.e., mature plant size, invasive
surface roots) to minimize damage to property or infrastructure [e.g., buildings,
sidewalks, power lines]; allow for adequate soil volume for healthy root growth;
and
3. consider the solar orientation for plant placement to maximize summer shade
and winter solar gain.
(D) Turf is not allowed on slopes greater than 25% where the toe of the slope is adjacent
to an impermeable hardscape and where 25% means 1 foot of vertical elevation change
for every 4 feet of horizontal length (rise divided by run x 100 = slope percent).
(E) High water use plants characterized by aplant factor of 0.7 to 1.0 are prohibited in
street medians.
(E) A landscape design plan for projects in fire -prone areas shall address fire safety
and prevention. A defensible space or zone around a building or structure is required per
Public Resources Code Section 4291(a) and (b). Avoid fire -prone plant materials and
highly flammable mulches. Refer to the local Fuel Modification Plan guidelines.
(F) The use of invasive aa&er- aexiei plant species such as those listed by the
California Invasive Plant Council, is strongly discouraged.
(�G) The architectural guidelines of a common interest development, which include
community apartment projects, condominiums, planned developments, and stock
cooperatives, shall not prohibit or include conditions that have the effect of prohibiting
the use of low-water use plants as a group.
(2) Water Features
(A) Recirculating water systems shall be used for water features.
(B) Where available, recycled water shall be used as a source for decorative water
features.
(C) Surface area of a water feature shall be included in the high water use hydrozone area
of the water budget calculation.
(D) Pool and spa covers are highly recommended.
(3) Soil Preparation, Mulch and Amendments
(A) Prior to the planting of any materials compacted soils shall be transformed to a
friable condition On engineered slopes only amended planting holes need meet this
requirement.
13
(B) Soil amendments shall be incorporated according to recommendations of the soil
report and what is appropriate for the plants selected (see Section 492.5).
(C) For landscape installations, compost at a rate of a minimum of four cubic yards
1,000 square feet of permeable area shall be incorporated to a depth of six inches into the
soil. Soils with greater than 6% organic matter in the top 6 inches of soil are exempt from
adding compost and tilling_
W A minimum twethree inch (LY) layer of mulch shall be applied on all exposed
soil surfaces of planting areas except in turf areas, creeping or rooting groundcovers, or
direct seeding applications where mulch is contraindicated. To provide habitat for
beneficial insects and other wildlife, up to 5 % of the landscape area may be left without
mulch. Designated insect habitat must be included in the landscape design plan as such.
((13) Stabilizing mulching products shall be used on slopes that meet current
engineering standards.
(q The mulching portion of the seed/mulch slurry in hydro -seeded applications shall
meet the mulching requirement.
(G) Organic mulch materials made from recycled or post -consumer shall take precedence
over inorganic materials or virgin forest products unless the recycled post -consumer
organic products are not locally available. Organic mulches are not required where
prohibited by local Fuel Modification Plan Guidelines or other applicable local
ordinances.
(P) Soil amendments shall be iaeeFper-eAed aeeer-ding te r-eeeffiffliend-Atiefflis efthe soil
(b) The landscape design plan, at a minimum, shall:
(1) delineate and label each hydrozone by number, letter, or other method;
(2) identify each hydrozone as low, moderate, high water, or mixed water use. Temporarily
irrigated areas of the landscape shall be included in the low water use hydrozone for the water
budget calculation;
(3) identify recreational areas;
(4) identify areas permanently and solely dedicated to edible plants;
(5) identify areas irrigated with recycled water;
(6) identify type of mulch and application depth;
(7) identify soil amendments, type, and quantity;
(8) identify type and surface area of water features;
(9) identify hardscapes (pervious and non -pervious);
(10) identify location, aR4-installation details, and 24-hour retention or infiltration capacity of
any applicable stormwater best management practices that encourage on -site retention and
infiltration of stormwater. Project applicants shall refer to the local agency or regional Water
Quality Control Board for information on any applicable stormwater technical requirements.
Stormwater best management practices are encouraged in the landscape design plan and
examples include, but are not li mite : are provided in Section 492.16.
(B) eenstmeted wetlands and r-etentien pends thm r-etain water-, handle emeess flew, and
alter pollutants; and
minimize
(11) identify any applicable rain harvesting or catchment technologies ., rain ga,
^leas discussed in Section 492.16 and their 24-hour retention or infiltration capacity;
(12) identifv anv applicable aravwater discharge_ piping, system components and area(s) of
distribution;
14
(424 contain the following statement: "I have complied with the criteria of the ordinance and
applied them for the efficient use of water in the landscape design plan"; and
"bear the signature of a licensed landscape architect, licensed landscape contractor, or
any other person authorized to design a landscape. (See Sections 5500.1, 5615, 5641, 5641.1,
5641.2, 5641.3, 5641.4, 5641.5, 5641.6, 6701, 7027.5 of the Business and Professions Code,
Section 832.27 of Title -16 of the California Code of Regulations, and Section 6721 of the Food
and Agriculture Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code;
and Section 1351, Civil Code.
§ 492.7. Irrigation Design Plan.
(a) This section applies to landscaped areas requiring_ permanent irrigation, not areas that require
temporary irrigation solely for the plant establishment period. For the efficient use of water, an irrigation
system shall meet all the requirements listed in this section and the manufacturers' recommendations.
The irrigation system and its related components shall be planned and designed to allow for proper
installation, management, and maintenance. An irrigation design plan meeting the following design
criteria shall be submitted as part of the Landscape Documentation Package.
(1) System
(A) Dedis�Landscape water meters defined as either a dedicated water service meter
or private submeter,
square feet to farailita4e water Rianagement. shall be installed for all non-residential
irrigated landscapes of 1,000 sq ft but not more than 5,000 sq.ft. (the level at which
Water Code 535 applies) and residential irrigated landscapes of 5,000 sq. ft. or greater. A
landscape water meter may be either:
1 a customer service meter dedicated to landscape use provided by the local water
purveyor; or
2. a privately owned meter or submeter.
(B) Automatic irrigation controllers utilizing either evapotranspiration or soil moisture
sensor data utilizing non-volatile memory shall be required for irrigation scheduling in all
irrigation systems.
(C) If the water pressure is below or exceeds the recommended pressure of the specified
irrigation devices the installation of a pressure regulating device is required The
irfigation system shall be designed to ensure that the dynamic pressure at each emission
device is within the manufacturer's recommended pressure range for optimal
performance.
1. If the static pressure is above or below the required dynamic pressure of the
irrigation system, pressure -regulating devices such as inline pressure regulators,
booster pumps, or other devices shall be installed to meet the required dynamic
pressure of the irrigation system.
2. Static water pressure, dynamic or operating pressure, and flow reading of the
water supply shall be measured at the point of connection. These pressure and
flow measurements shall be conducted at the design stage. If the measurements
are not available at the design stage, the measurements shall be conducted at
installation.
(D) Sensors (rain, freeze, wind, etc.), either integral or auxiliary, that suspend or alter
irrigation operation during unfavorable weather conditions shall be required on all
irrigation systems, as appropriate for local climatic conditions. Irrigation should be
avoided during windy or freezing weather or during rain.
15
(E) Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) shall be
required, as close as possible to the point of connection of the water supply, to minimize
water loss in case of an emergency (such as a main line break) or routine repair.
(F) Backflow prevention devices shall be required to protect the water supply from
contamination by the irrigation system. A project applicant shall refer to the applicable
local agency code (i.e., public health) for additional backflow prevention requirements.
(G) Nigh Fflow sensors that detect thigh flow conditions created by system
damage or malfunction are r-esemmeadedrequired for all on non-residential landscapes
and residential landscapes of 5000 sq. ft. or larger.
(H) Master shut-off valves are required on all projects except landscapes that make use of
technologies that allow for the individual control of sprinklers that are individually
pressurized in a system equipped with low pressure shut down features.
(11,)"The irrigation system shall be designed to prevent runoff, low head drainage,
overspray, or other similar conditions where irrigation water flows onto non -targeted
areas, such as adjacent property, non -irrigated areas, hardscapes, roadways, or structures.
fn (1) Relevant information from the soil management plan, such as soil type and
infiltration rate, shall be utilized when designing irrigation systems.
(KK,) () The design of the irrigation system shall conform to the hydrozones of the
landscape design plan.
(LL,) (K) The irrigation system must be designed and installed to meet, at a minimum, the
irrigation efficiency criteria as described in Section 492.4 regarding the Maximum
Applied Water Allowance.
(M) All irrigation emission devices must meet the requirements set in the American
National Standards Institute (ANSI) standard, American Society of Agricultural and
Biological Engineers'/International Code Council's (ASABE/ICC) 802-2014 "Landscape
Irrigation Sprinkler and Emitter Standard All sprinkler heads installed in the landscape
must document a distribution uniformit lowquarter of 0.65 or higher using the protocol
defined in ASABE/ICC 802-2014.
NS ) (L) It is highly recommended that the project applicant or local agency inquire with
the local water purveyor about peak water operating demands (on the water supply
system) or water restrictions that may impact the effectiveness of the irrigation system.
(0) (W In mulched planting areas, the use of low volume irrigation is required to
maximize water infiltration into the root zone.
0 (l) Sprinkler heads and other emission devices shall have matched precipitation
rates, unless otherwise directed by the manufacturer's recommendations.
(0)"Head to head coverage is recommended. However, sprinkler spacing shall be
designed to achieve the highest possible distribution uniformity using the manufacturer's
recommendations.
(lZ) (F� Swing joints or other riser -protection components are required on all risers
subject to damage that are adjacent to hardscapes or in high traffic areas of turfgrass.
(S) M Check valves or anti -drain valves are required n all
sprinkler heads where low point drainage could occur.
M (R) Naffewer- shaped areas, ifieludi g tuFf Areas less than teneigM ($10)
feet in width in any direction shall be irrigated with subsurface irrigation or low volume
iffigation system. ther means that produces no runoff or overspray.
(U) (fir) Overhead irrigation shall not be permitted within 24 inches of any non -permeable
surface. Allowable irrigation within the setback from non -permeable surfaces may
include drip, drip line, or other low flow non -spray technology. The setback area may be
planted or unplanted. The surfacing of the setback may be mulch, gravel, or other porous
material. These restrictions may be modified if:
16
1. the landscape area is adjacent to permeable surfacing and no runoff occurs; or
2. the adjacent non -permeable surfaces are designed and constructed to drain
entirely to landscaping; or
3. the irrigation designer specifies an alternative design or technology, as part of
the Landscape Documentation Package and clearly demonstrates strict adherence
to irrigation system design criteria in Section 492.7 (a)(1)(II4). Prevention of
overspray and runoff must be confirmed during the irrigation audit.
(T-) Slopes greater than 25% shall not be irrigated with an irrigation system with a
pr-eeipitationapplication rate exceeding 0.75 inches per hour. This restriction may be
modified if the landscape designer specifies an alternative design or technology, as part
of the Landscape Documentation Package, and clearly demonstrates no runoff or erosion
will occur. Prevention of runoff and erosion must be confirmed during the irrigation
audit.
(2) Hydrozone
(A) Each valve shall irrigate a hydrozone with similar site, slope, sun exposure, soil
conditions, and plant materials with similar water use.
(B) Sprinkler heads and other emission devices shall be selected based on what is
appropriate for the plant type within that hydrozone.
(C) Where feasible, trees shall be placed on separate valves from shrubs, groundcovers,
and turf to facilitate the appropriate irrigation of trees. The mature size and extent of the
root zone shall be considered when designing irrigation for the tree.
(D) Individual hydrozones that mix plants of moderate and low water use, or moderate
and high water use, may be allowed if-
1. plant factor calculation is based on the proportions of the respective plant water
uses and their plant factor; or
2. the plant factor of the higher water using plant is used for calculations.
(E) Individual hydrozones that mix high and low water use plants shall not be permitted.
(F) On the landscape design plan and irrigation design plan, hydrozone areas shall be
designated by number, letter, or other designation. On the irrigation design plan,
designate the areas irrigated by each valve, and assign a number to each valve. Use this
valve number in the Hydrozone Information Table (see Appendix B Section A). This
table can also assist with the irrigation audit and programming the controller.
(b) The irrigation design plan, at a minimum, shall contain:
(1) location and size of separate water meters for landscape;
(2) location, type and size of all components of the irrigation system, including controllers, main
and lateral lines, valves, sprinkler heads, moisture sensing devices, rain switches, quick couplers,
pressure regulators, and backflow prevention devices;
(3) static water pressure at the point of connection to the public water supply;
(4) flow rate (gallons per minute), application rate (inches per hour), and design operating
pressure (pressure per square inch) for each station;
(5) recycled water irrigation systems as specified in Section 492.14;
(6) the following statement: "I have complied with the criteria of the ordinance and applied them
accordingly for the efficient use of water in the irrigation design plan'; and
(7) the signature of a licensed landscape architect, certified irrigation designer, licensed
landscape contractor, or any other person authorized to design an irrigation system. (See Sections
5500.1, 5615, 5641, 5641.1, 5641.2, 5641.3, 5641.4, 5641.5, 5641.6, 6701, 7027.5 of the
Business and Professions Code, Section 832.27 of Title 16 of the California Code of
Regulations, and Section 6721 of the Food and Agricultural Code.)
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
17
§ 492.9. Certificate of Completion.
(a) The Certificate of Completion (see Appendix C for a sample certificate) shall include the following
six (6) elements:
(1) project information sheet that contains:
(A) date;
(B) project name;
(C) project applicant name, telephone, and mailing address;
(D) project address and location; and
(E) property owner name, telephone, and mailing address;
(2) certification by either the signer of the landscape design plan, the signer of the irrigation
design plan, or the licensed landscape contractor that the landscape project has been installed per
the approved Landscape Documentation Package;
(A) where there have been significant changes made in the field during construction,
these "as -built" or record drawings shall be included with the certification;
(B) A diagram of the irrigation plan showing hydrozones shall be kept with the irrigation
controller for subsequent management purposes.
(3) irrigation scheduling parameters used to set the controller (see Section 492.10);
(4) landscape and irrigation maintenance schedule (see Section 492.11);
(5) irrigation audit report (see Section 492.12); and
(6) soil analysis report, if not submitted with Landscape Documentation Package, and
documentation verifying implementation of soil report recommendations (see Section 492.5).
(b) The project applicant shall:
(1) submit the signed Certificate of Completion to the local agency for review;
(2) ensure that copies of the approved Certificate of Completion are submitted to the local water
purveyor and property owner or his or her designee.
(c) The local agency shall:
(1) receive the signed Certificate of Completion from the project applicant;
(2) approve or deny the Certificate of Completion. If the Certificate of Completion is denied, the
local agency shall provide information to the project applicant regarding reapplication, appeal, or
other assistance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.11. Landscape and Irrigation Maintenance Schedule.
(a) Landscapes shall be maintained to ensure water use efficiency. A regular maintenance schedule shall
be submitted with the Certificate of Completion.
(b) A regular maintenance schedule shall include, but not be limited to, routine inspection; auditing,
adjustment and repair of the irrigation system and its components; aerating and dethatching turf areas;
topdressing_with compost, replenishing mulch; fertilizing; pruning; weeding in all landscape areas, and
removing and obstructions to emission devices. Operation of the irrigation system outside the normal
watering window is allowed for auditing and system maintenance.
(c) Repair of all irrigation equipment shall be done with the originally installed components or their
equivalents or with components with greater efficiency.
(d) A project applicant is encouraged to implement established landscape industry sustainable Best
Practices �atally friendly
""^^t:cesfor ev mH-all landscape maintenance activities.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.12. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
18
(a) All landscape irrigation audits shall be conducted by a local agency landscape irrigation auditor or a
third party certified landscape irrigation auditor. Landscape audits shall not be conducted by the person
who designed the landscape or installed the landscape.
(b) In large projects or projects with multiple landscape installations (i.e. production home
developments) an auditing rate of 1 in 7 lots or approximately 15% will satisfy this requirement.
(b)Lc,ZFor new construction and rehabilitated landscape projects installed after 3anuar-y1,
204-ODecember 1, 2015, as described in Section 490.1:
(1) the project applicant shall submit an irrigation audit report with the Certificate of Completion
to the local agency that may include, but is not limited to: inspection, system tune-up, system test
with distribution uniformity, reporting overspray or run off that causes overland flow, and
preparation of an irrigation schedule, including configuring irrigation controllers with application
rate, soil types, plant factors, slope, exposure and any other factors necessary for accurate
programming;
(2) the local agency shall administer programs that may include, but not be limited to, irrigation
water use analysis, irrigation audits, and irrigation surveys for compliance with the Maximum
Applied Water Allowance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.13. Irrigation Efficiency.
(a) For the purpose of determining M _,; m Applied Water- "flew - eeEstimated Total Water Use,
average irrigation efficiency is assumed to be 0.758:7-1- for overhead spray devices and 0.81 for drip
system devices. kFigation systems shall be dun;—„o I „taiaed, and managed to meet e. exeeea
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.14. Recycled Water.
(a) The installation of recycled water irrigation systems shall allow for the current and future use of
i •,+ exemption h � ted as •boa in Section 492.14(b).
recycled water��.r-�-.rn«������--�s-,�e��«�a .,.....,........�..,....,..
and standar-ds is not avaiiable and will fiet be available for- the fer-eseeable fifti
(e) (b) All recycled water irrigation systems shall be designed and operated in accordance with all
applicable local and State laws.
(4) (c) Landscapes using recycled water are considered Special Landscape Areas. The ET Adjustment
Factor for new and existing (non -rehabilitated) Special Landscape Areas shall not exceed 1.0.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
& 492.15. Graywater Systems.
(a) Graywater systems promote the efficient use of water and are encouraged to assist in on -site
landscape irrigation All graywater systems shall conform to the California Plumbing Code (Title 24,
Part 5 Chapter 16) and any applicable local ordinance standards. Refer to & 490.1 (d) for the
applicability of this ordinance to landscape areas less than 2,500 square feet with the Estimated Total
Water Use met entirely bygraywater.
Note: Authority cited: Section 65595 Government Code. Reference: Section 65596, Government Code.
§ 492.165. Stormwater Management and Rainwater Retention.
19
(a) Stormwater management practices minimize runoff and increase infiltration which recharges
groundwater and improves water quality. Implementing stormwater best management practices into the
landscape and grading design plans to minimize runoff and to increase on -site rainwater retention and
infiltration are encouraged.
(b) Project applicants shall refer to the local agency or Regional Water Quality Control Board for
information on any applicable stormwater technical require mentser-din nees and stef m....,.o~
managemen"Aams.
(c) All planted landscape areas are required to have friable soil to maximize water retention and
infiltration. Refer to § 492.6(a)(3).
(d) It is strongly recommended that landscape areas be designed for capture and infiltration capacity that
is sufficient to nrevent runoff from imnervious surfaces (i.e. roof and raved areas) from either: the one
rain event, and/or additional i
required by any local, regional, state or federal regulation.
(e) It is recommended that storm water projects incorporate any of the following elements to improve
on -site storm water and dry weather runoff capture and use:
• Grade impervious surfaces, such as driveways, during construction to drain to vegetated areas.
• Minimize the area of impervious surfaces such as paved areas, roof and concrete driveways.
• Incorporate pervious or porous surfaces (e.g., gravel, pavers or blocks, pervious or
porous concrete) that minimize runoff.
• Direct runoff from paved surfaces and roof areas into planting beds or landscaped areas to
maximize site water capture and reuse.
• Incorporate rain gardens cisterns and other rain harvesting or catchments sty
• Incorporate infiltration beds swales basins and dDMells to capture storm water and dry weather
runoff and increase percolation into the soil.
• Consider constructed wetlands and ponds that retain water, equalize excess flow, and filter
pollutants.
and emate YY storage
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.176. Public Education.
(a) Publications. Education is a critical component to promote the efficient use of water in landscapes.
The use of appropriate principles of design, installation, management and maintenance that save water is
encouraged in the community.
(1) A local agency or water supplier/purveyor shall provide information to owners of permitted
renovations and new, single-family residential homes regarding the design, installation,
management, and maintenance of water efficient landscapes based on a water budget.
(b) Model Homes. All model homes that are landscaped shall use signs and written information to
demonstrate the principles of water efficient landscapes described in this ordinance.
(1) Signs shall be used to identify the model as an example of a water efficient landscape
featuring elements such as hydrozones, irrigation equipment, and others that contribute to the
overall water efficient theme. Signage shall include information about the site water use as
designed per the local ordinance; specify who designed and installed the water efficient
landscape; and demonstrate low water use approaches to landscaping such as using native plants,
graMater systems and rainwater catchment systems.
(2) Information shall be provided about designing, installing, managing, and maintaining water
efficient landscapes.
all
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 492.18-7. Environmental Review.
(a) The local agency must comply with the California Environmental Quality Act (CEQA), as
appropriate.
Note: Authority cited: Section 21082, Public Resources Code. Reference: Sections 21080 and 21082,
Public Resources Code.
§ 493. Provisions for Existing Landscapes.
(a) A local agency may by mutual agreement, designate another agency, such as a water purveyor, to
implement some or all of the requirements contained in this ordinance. Local agencies may collaborate
with water purveyors to define each entity's specific responsibilities relating to this ordinance.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 493.1. Irrigation Audit, Irrigation Survey, and Irrigation Water Use Analysis.
(a) This section, 493.1, shall apply to all existing landscapes that were installed before januafy 1,
December 1, 2015 and are over one acre in size.
(1) For all landscapes in 493.1(a) that have a water meter, the local agency shall administer
programs that may include, but not be limited to, irrigation water use analyses, irrigation surveys,
and irrigation audits to evaluate water use and provide recommendations as necessary to reduce
landscape water use to a level that does not exceed the Maximum Applied Water Allowance for
existing landscapes. The Maximum Applied Water Allowance for existing landscapes shall be
calculated as: MAWA = (0.8) (ETo)(LA)(0.62).
(2) For all landscapes in 493.1(a), that do not have a meter, the local agency shall administer
programs that may include, but not be limited to, irrigation surveys and irrigation audits to
evaluate water use and provide recommendations as necessary in order to prevent water waste.
(b) All landscape irrigation audits shall be conducted by a certified landscape irrigation auditor.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
§ 494. Effective Precipitation.
(a) A local agency may consider Effective Precipitation (25% of annual precipitation) in tracking water
use and may use the following equation to calculate Maximum Applied Water Allowance:
MAWA= (ETo - Eppt) (0.62) [(0-70.55 x LA) + (040.45 x SLA)] for residential areas.
MAWA= (ETo-EPPT) (0 62) R0 45 x LA) + (0.55 x SLA)] for non-residential areas.
Note: Authority cited: Section 65595, Government Code. Reference: Section 65596, Government Code.
� 495. Reporting.
(a) Local agencies shall report on implementation and enforcement by December 31, 2015. Local
agencies responsible for administering individual ordinances shall report on their undated ordinance,
while those agencies developer a regional ordinance shall report on their existing ordinance. Those
agencies crafting a regional ordinances shall also report on their new ordinance by March 1, 2016.
Subsequently, reporting for all agencies will be due by January 31" of each year. Reports shall be
submitted to the Department of Water Resources.
(b) Local agencies are to address the following:
(1) State whether you are adopting a single agency ordinance or a regional agency alliance
ordinance and the date of adoption or anticipated date of adoption.
21
(2) Define the reporting period. The reporting period shall commence on December 1, 2015 and
the end on December 28, 2015. For local agencies crafting regional ordinances with other
agencies, there shall be an additional reporting period commencing on February 1, 2016 and
ending on February 28, 2016. In subsequent years, all local agency reporting will be for the
calendar .year.
(3) State if using a locally modified Water Efficient Landscape Ordinance (WELO) or the
MWELO. If using a locally modified WELD, how is it different than MWELO, is it at least as
efficient as MWELO, and are there any exemptions specified?
(4) State the entity responsible for implementing the ordinance.
(5) State number and types of projects subject to the ordinance duringthe he specified reporting
period.
(6) State the total area (in square feet or acres) subject to the ordinance over the reporting
period, if available.
(7) Provide the number of new housing starts new commercial projects, and landscape retrofits
duringthe he reporting_ period.
(8) Describe the procedure for review of projects subject to the ordinance.
(9) Describe actions taken to verify compliance. Is a plan check performed; if so, by what
entity? Is a site infection performed,• if so by what entity? Is a post -installation audit required;
if so, by whom?
(10) Describe enforcement measures.
(11) Explain challenges to implementing and enforcing the ordinance.
(12) Describe educational and other needs to properly apply the ordinance.
Note: Authority cited: Section 65595 Government Code. Reference: Section 65596, Government Code.
22
Appendix A. Reference Evapotranspiration (ETo) Table.
endix A - Re_e_rence Evapotrans
rat on
(LETo
Table*
Oct
Co y and City
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Nov
DecAn/
Fremont _ _ _ -
Livermore
1,5
1.9
3.4
4.7
5,4
6.3
6.7
6.0
4.5
3,4
1.8
1,5
47.0
1.2
1.5
2.9
4.4
5.9
6,6
7.4
6.4
5.3
3.2
1.5
47.2
_
Oakland T -1,5
1.5
,8
3.9
5.1
5.3
6,0
5.5
4.8�
3.1
1A
9
41.8
Oaklan [tooth
1.1
1.4
2.7
3.7
5.2
6.4
S.8
4.9
3.6�
2.b
i,
1.0
39.6
Pleasanton
0.8
1,4-
1.5
1.8
Z.9
3.1
4.4
4.2
5.6
5.4
6.7
5.9
7.4
6.4
6.4
5.7
4.7 _
4.4
3.3
3,1� .5
1.0
1.2
46.2
44.2
Union City
ALPINE -
-
U.7
0.9
_
4.4
Markleev(Il'e __
2,0
3.5
5.0
6.1
7.3
6.4
1.2
0.5
40.6
AMADOR
-
Jackson ^ _
Valley
1.2
1.5
2.8
4.4
6.0
7,2
6.8
7,9
7.2
5.
3,2
_3.6
1.4
0.9
48.9
.0
1,7 1
2.9
4.4
5.6
7.9
7.1
1.7
1.0
- -
48.8
-
_Shanandoah
BUTTE _ - _-
Chico _
Durham
Gridleyy __- - -
Orovlile _ T�_
1.
1,1
1.2
---
51.7
51.1 -
51.5
1_.8
.B
I.
2.9
4.7
6.1
4
8.5 '
7,
5.4
3.7
1.7
1.0_
3.2
5,0
6.5 ]li4
7.8
5.3
3,6
1.7
1.0
3,0
2.8_
4.7
4,7
6.1
6.1
7.7
7.6
8_5
8:
.i
7.3
5.4 ,
5.3
3,7
3,7
1.7
1.7
1.0
1.0
CALAVERAS
San Andreas -
1,2
1.5
8
4.4
6.0
7.3
.9
7.0
S,3
3.2
1:4
0.7
48.8
COLUSA
7.2
_
Colusa
1.4
1,7
3.4
5.0
6.4
8.3
5.4
3,6
1.8
1.1
52.8
W,;-1 s -
1.2
1.7-.2.9
5
6.1
.2
8.5
7.3
5_3
3.4
1.6 .
1.0 _
50.8
�GUNTRA COSTA
-^
-
1.3
1.4
2.7-
3.8
4.5
4.
9
.0
6.4
5.5
4,4 1
2.9
1.2
0.7
40.3
Brentwood _- _ __�
Courtland -
1,0
i.S
2.9
2.4
2.9
2.4
1 7.1
7,9
6.7
5,2
3.2
1.4
0.7
48.3
5.9
6.1 6_.9
5,3 6
7,0
6.0
6.7
4.8
3.
1.3
0.7
43. '
0.9
1.5
7.9
5.3
3.2
1A
0.7
48.0
Martinez
i.2
i,4
6,7
5.6
4.7
3.1
1,2
0,7
41.8
'Moraga _!
1.2
1,5
-- - ---
1.5
3�
4.2
5.5
6.7
5.9
-----
4.6
3.2
1.6
1,0
44.9_
__
Pittsburg __ _�
Walnut Creek_ ----
L,0
4.1
S.6
6.4
6.7
- -
7.4
6.4
5.0
3.2
1.3
1.5
0.7
1.0
45.4
0.8
--
1.5
.9
4.4
5.6
4
- --
6.4
4.7
3.3
46.2
lI�L NORT76-_._...---
Crescent CEty
0.5
0. _ 1.7
0 1.5
2.0
3.0
3.7
3.5
4.
7.8 `
3.7
3.0
2.0
0.9_
0,5
2'1.7
EL DORADO
2.5
3,9
5.9
7.2
_
5.1
3.1
1,5
0,9
47,3
_Camino _
PRESNO
Clovls
3.2
4.8
6.4
7.7
8.5
_7.3
7.3
7.2
8.0
7,1
33.4
1.4
0,7
0.7
1.1
51.4
_T~_
Coalln�a _
Flrbaugh
FivePolnts ._._._ --
1.2-
1,0-
1,3
1.7
1,8
2.0
3.1
3.7
4.0
4.6
5.7
6,1
6.2
7,3
7.7-
7.2
8.1
8,5
8.5
8,2
.7
5,
6,2
3.4
3.9
5_
1.6
2.0
50,9_
55.4 -
2A
1,2
60.4
FRESNO
-
_
Fresno -
Fresno State
Frlari't--
0.9
1.7
1.6
1.5
3.3
4.8
6.7
7.6
8.4
5.2
3, 1.4
0.6
51.1
0.9
1.2
3.2
3.1
5.2
4,7
7.0
6.4
8,0
7,7`
8,7-
8.
7.6
7.3
5.4
5.3
3.6
3.4
,7 _
0.9
0,7
53.7
51,3
-
k- ---' -- --.
Kerman
.__--• ---._..---- _
Kin�sburg
0.9
1.5
3,2
4,8
6.6
7,7
8.4
7,2
7.2
5,3
5.3
3.4
1.
03
51.2
-
7
51.6
Mendo _
Orang- ove-�
Pan -^ -
1,5
1.2
25
1.9
2.0
_
4.6
3.5
4.0
6.2
4.7
5.6
7,9
7,4
7.8
_ 6.8
6,4
8.6
8.5
8.5
8.8
8.9
8.3
7,5
7.9
7.3
5.9
5.9
5.6
4.5
3.7
3.9
3.4
2.4
1.8
1.8-
_
1.
1.2
61.7
56,7
7.2
0
P r _
edley _
_i.l
1.0
1.1
1.9
1.5_
3.6
3.2
-5.2
4.7
_7.6
7.7
8.1
8.5
7,0
7,3-
5,1
5.3
1,7
0.9
3.4
1,4
0,7
51.
est- nde
0.9
1.7
3.8
6.3
8.0
8.6
_ 8.6
7,8
5,9
4.3
2.1
1 1.1
58.8
23
pen ix A -Reference Eva otrans iration
(ETo Tab a
Jul
--
Co ty and City
Jan
Feb
Mar
Apr
May
Jun
Aug
Sep
Oct
Nov
Dec
A al
Orland _
1.1
1.8 ;
3,4
5.0
6.4
7.5
7.9
6,7
5.3
3.9
1.8
1.
52,1
Willows J'
1.2--0.7
2.9
4.7
6,1
7.2
8.5
7.3
5.3
3.6
1.7
51.3
--..
H 'UMBOLD
---
-
3.7
3,7
3.7 -
3.7
3.7
3.0
3.0_
2.0
2.0
0.9
or
O.S
27.5
Eureka
0.5
1.1
2,0
3.0
3.7
Fe_rncaX
0.5
1.1
2.0
3.0�
3.7
3.7
0.5
27.5
Garbervllle _
Hoops -
0.6
1.2
1.1
2.2
2.1
3.1
4.5
5.0
5.5
6.1
4.9
3.8
2.4
.0
0.9
0.7
34.9
0.5
3.0
4.4
5.4
5,1
3.8
2.4
0.7
35.6
IMPERIAL
8.4
Brawley
2.8
3.8
5,9
8,0
10.4
11.5
11.7
10.0
_
.2
3.5
2.1
84.2
_
Calfpatria4_M_ ulberry
El Centro _
Hoitville -
Meloland�
pa o Verde II
2.4
3,2
3.5
5.1
6.8
8.
9.2
9.2
8.6
7,0
5.2
3.1
2.3
70.7
2.7
5.6-
7.9
7.9
7.5
6,9
10.1
10.4
8.9
$.5
11.1
11.6
9.5
8
6.1
3.3
2.0
81.7
8
2,
3.8
3.2
3,3
5,9
5.5
5.7
11.6
_9.2
12.0
9.0
10.0
.6
6.2
3.5
ZA
84.7
8.5
6.8
5.3
3.1
2.2
71.6
2,5
8.9
8.6
7
6.2
4.5
2.9
2.3-
-
68.2
-
Seeley
2.7
5 `-5.9
7.7
9.7
10.1
9.3
,3
6.9
5.5
3.4
2.2
75A
_
Westmoreland
2,4
2.5
3.
3.4
5.3 16.9
8,7
9.6
9.6
8,7
6.9
5.0
3.0
2.2
71.4
Yuma J __
5.3
6.9
8.7
9.6
9
8.7
6,9
5.0
3.0
2.2
71.6
Y
Bisho __-"�-----�
1,7
2.7
4. 6,7
8,2
10,
.4
9.6
7.4
4,8
2.5
1.6_
_68,3
Death Vaf e�y Jct
Independence _- _
Lower Haiwee Res.
Oasis- ---- ----------
KERN
2.2
3.3
5.4
7.7
9.8
1
11.4
10.1
8.3
5.4
2.9
1,7
79.1
1.7
2.7
3.4_
6
8.5
9.8
8.5 1
7,1
3.9
2.0
1.5
65.2
1.8
2 7
2.7
4.4
7.
8.S
9.5
9.8
8.5
7.1
8.4
4.2
2.6
1.5
67.6
2.8
5.9
8.0
1
11,7
11.6
10.0
6.2
3.4
2.1
83.1
_
_--
Arvin
1.2
1.8
3.5
4.7
6.
7.4
8.1
7,3
5.3
3A
1.7
1,0
51.9
52.4
Bakersfield -
Bakersfield/Bonanza
1.0
1.8
3.5
4
6.6
7.7 -
8.5
7.3
5.3
3.5-
4.0
1.6-
2.1
0.9
1.2
2.2
3.7
_7A__
7.4
8.
8.7
8.7
7.8 ;
7,8 �
5.7
1.2
57.9
_
Bakersfield/Greenlee
1.2
_
2.2
3.7
.7
5.7
4.0
2.1 _
1.2
..-
57.9 -
KERN------ _----
---
--
Beiridga - w --�__-
Blackwells Corn_er -
1.4-
2.2
5.5
5.4
7.7
7.0
8.5
6
7.8
_6.0
3.8
2.0
1.5
59.2 _-
1.4
2.1
.8
3.2-
7.8
B.
7.7
5.8
3.9
1.9
1.2
56.6
52.0
Buttonwillow
1.0
i.
4.7
6.6
7.7
'16.0
8.5
7.3
. 5.4
3. ,
1.5
0.9
China Lake
2.1
5.3
7.7
9.2
-6.6
11.0
8
7.3
4.9'
2.7
1.7
74.8
_
Delano ' --
Famoso
Gra4vine
Inyokern
Isabella Dam
0,9
,8
3.4
4.7
6.7
5.6
7.7
1.6
6.8
8.5
8.0
7.6
7.
7.3
5.4
3.4
1.4
OJ
52.0
1.
1,9
3.5
4.8
4.4-
5.5
3,5
1.7
1.3
53,1
1,8
3.1
6.8
9
3.4
1.9
1.0
1.7
49.5
72.4
.0
3.1
4.9
7.3
8.5
9.7
11.0_
7.9
9.4
7. 5.1
2.6
1.2
1.4
2.4
2.8
4.4
5.8
7.3
7.0
5.0
3.2
1.7
0.9
54.4
Lamont
1.3
4.4
4.6
6.5
7.0
, 8.8
7.6
5.7
7
1.6
0.8
Hills
1.6
2.2
3.7
5.1
5.6
6.8
7.8+�77.8
5.7
4.
2.1
i.6
1.2.
0.9
57.1
56.5
-52.1
_Lost
McFarland/Kern
Shafter
Taft _ -
-Tehachapi
1.2
2.1
3.7
7.3
8,07.4
5.6
5.4
4.1
3.4
2.0
5
1.0
1,3
1,4
iJ
3,4
S.0
6.6
7.7
8,3
%3.
1,8
1.8
3.1
4.3
6.2
7.3
8.5
7,3
5.4
3,4
1,
1.0
51.2
3,2
5.0
' 6.1
7J
7.9
7.3
5.9
3.4
2.1
1.2
52.9
_ _ _
KINGS
2.5
_
8.7
_
Caruthers
1.6
1 4.0
5.7
7.8�
6.8
9.3
8.4
6.3
4.4
2.4
1.V
62.7 -
_ _
Corcora
1.6
2.2
3.7
5,1
7.8
8.7
7.8
5.7
4.0
,i
1.6
Hanfor
0.9
1.5
3.4
5.0
6.6�
7.7
8.3
7.2
5.4
3.4
1.4
0.7 _Kettl
V�6
an
1.1
2.0
4A
6A
7,5
6.5
9.i
8,2
6.1
4.5
2.2
1.1
_
re
tford -- - --
0.9
1,5
3.4
5.0
6.6
7,7
8,6
8.3 1
7.3
5.4
3.4
1.4
. 2.l
0.7
1.0
51,
58.7
- 0.9
1.9
3.9
6.1
7.8
8.8
7J
5,9
4.1
24
pendix A - Reference Eva otrans
ration E7o) 'Table,$
ty and City
CoNA
Jan
Feb
Mar
Apr
-
May
Jun
Jul
_-
Aug
_
Sep
Oct
Nov
Dec
al
o
LAKE
_
__..
-
2.9
-L2
Lakeport -�--- - -
1.1
1.3
2,6_
5.1
6.0
7,3
6,1
4,7-
0.9
42,8
-Lower Lak -�
1.2
1.4
------
2.7
_3,5_
4,5
5.3
6,3
7,4
6.4
5.0
3,1
133
45A
LASSEN -
..
4.9
-
5.4
4.7
3.4
2.8
--
Buntingvllle
1.0
1,7
3.5
6.2
7,3
8A
7.5
1.,'
0,9
0.5-
_51.8
44.9
_ _
Ravenda"le ^_
0,6
V
1.1
2.3
4.1
5.6
6.7
7.9
7.3 '
_
5usanvi e
1,0_
2.2
4,1
5.6
6.5
7.8
7.0
4.6
2.8
,2
0.5
44,0 -
LOS ANGELES
-_
Burbank -- -
2.1
2.8
3,7
4.7
SA
5.0
5.1
6.0
6,6 1
6,7
514
2,6
2,7
2.0
51,7
-Claremont
2,0
2.3
3.4
4.6
6.0
7.0
7.0
5,3
,0
2.1 1
51,3
Ei Dorado -
1,7
2.2
3.6
4.8
5.7
5,9
5.9
4.
3.2
2.2
1.7 146.3
Glendale- - --
0
-2,2
3.3 -
3.8
4.7
4.8
5.7
5.6
3,3
2,2
1.8
43.7
Glendora
2.5
3.6
4,9
5.4
6.1
7.3
6.8
.7
4,2
2,6
2.0
53,1
Gorman -
1.
2.2
3.4
4.6
5.5
7.4
7,7
7.W
5.9
3,6
2,4
1,1
52.4
Hollywood Hills
2,1
.2
3,6
5,4
6.0
6.5
6,7
5.2
3.7
2.8
2.1
52,8
_
Lancaster
2.1--
1.8
_21
4,6
5.9
8,5
9.7
11.0
,8
7.3
4,6
2,8
1.7
71.1
_
Long Beach R
3.3
3.9
4.5
4.3
5.
4,7
3.7
2.8 ,
1,8
1.5
39.7
Los Angeles �—
2.2
.7
4.7
5,5
5.8
5.9
5,0
3.9
2,6
1.9
50.1
LOS ANGELES
_2,7
6,4
Monrovia
Palmdale-- - -----
Pa----- a -T-'-
2,2
2.3
3.
4,3
5.5
5.
619
9.8
5,1
3,2
2.5
2.0
50,2
2,0
2,6
4.6
2
7,3
9,0
6,5
4.7
2,7
2.1
66.2
52,3 -
2.1
2J
3,7
5,1
.0
7,1
6.7
5.6
4.2
2,6
2A
Pearb(ossom -_
1.7
2,4
3.7
4,
7,
7,7
9.9
7,9
6A
4.0
2.6
1.6
59.9
Pomona -
1,7
2,0
3.4
4,5
5.8
6,5
6.4
4,7
3.5
47,5
Redondo Beach T - ~^
2.2
3.3
3,8
4.7
5.4
4,8-
4.4
2.8
2.4
2,0
42,6
'San Fernando
_2,4
2,7
2.8
3.5
4.
5,5
5.9
7,3
6.7
5.3
3.9
2.6
2.0
52.0
Santa Clarita -
_2.0
2.8
4.t
6,0
8
7.6
7.8
5,8
5.2
3.1
3,2
61,5 _ -
_
Santa Monica
1.8
2.1
3,3
,5
4,7
S.
5A
5.4
3,9
3.4
2.4
2,2
44.2
MADERA
4.7
6.6
5.3
51.4
Chowchilia
1.0
1.4
7.8
7,3
3.4
1.4
-_
0.7
Madera-
0.9
1.4
.2
4,6
6.6
7.8
8,
7.3
5,3
3.4
1,4
0.7
51,5 -
-~ �-
Raymond
1.2
1,
3.0
4.6
6.1
7,6
8,4
7,3
5.2 ••
3,4
1.4
0.7
50,5
_ �
MARIN
_
3.0
66
---_
Black Point -
1,1
.7
_
4.2
5,2
4.4
6,2
5. 4,3
.—
2,8
1.3
0,9
43,0
-
Novato
Point San Pedro- -
--
1,
1,5
1.7
-
2,4
3.0
3.5
�4.2
_�.
5.9
5.4
4.4
2,8
1.4
0,7
0.9 -
39.8
_
5.2
_6.0
6.2
6.6 5 8
2.8
2.7
1.3
43.0
San Rafael _ -
_
.2
1,3
2.4
3.3
4.0
4.8
4.8
4.9
4.
1.3
0.7
35.8
MARIPOSA—
8,1
7,0
5.3
-1.4
1.4
Coulterville -
Marlposa
1,1
1,5
2,8
4A
5,9
7.3
0.7
48.8
1.1
1.5
2.8
-4.4-
5.9
7.4
8.2
7.1
5,0
3,
0,7
49.0
_
Yosemite Village
0.7
1,0
2.3
3.7
5.1
6.5
7.1
6.1
4.4
2,9
A
0.6
41.4
MENDOCIN_ O____
Fart Bragg
Hopland - - - -_
Point Arena
_
_
2.3
2.8
IIIIL
0.9
1,3
2.2
2.6
3.0
"
3,5
5.9
_
3.7
3.7
3.0
4,5
1.
0.7
29.0
1,1
1,3
3.4
5.0
6,5
5,7-
1.3
1,2
7
40,9
L0
1.3
Z.3
3.0
3.7
3.9
3.7
3J
3.0
2,3
29.6
Sahel Vall
1.0
1.6
3.0
+6
6.0
7.0
8.0
7.0
5,2
3.4
1,4
0.
49.1
Uklah �.
MER
Ke on
1.0
1.3
2.6
3,3
5,0
5.8
6.7
5,9
4.5
2.8
1.3
0,7
0,9
0.9
-
1.7
--
-
-
--
- -
-
- -
55.
3.4
5.S
7,3
8.2
8.6
7.4
5.5
3,8
1,8
019
nos
1.0
1.5
3.2
4,7
6,1
7,4
8.2
7.0
5.3
3.4
1,4
1.4 -
0.7
0.7
50,0
51.5
rced
1,0_
-1.5 -
3.2
4,7
6,6
7.0
8,5
7.2
5.3
3.4
25
IlLppendix A - Reference Evapotranspirat
on (ETo
Table*
Sep
Co ty and City
]an
Feb
Marl
Apr
May
Jun
Jul
Aug
Oct
Nov
Dec
nual
ETo
0.9
ras
1.4
2.8
3.7
5.1
6.2 -
7.5
6.6
4.6
2.8
1.2
-
43.2
_Modoc/A
MONO
-
-
-- --
7.4
-
Bridgeport_ -
0.7
0.9
2.2
3.8 15.5
6.6
6.7
4.7
2.7
1, ;
0.5
43.0
MON7EREY
Arroyo 5eco _
Castroville
1.5
2.0
17
5.4
6.3
7.3
7.2
6.7
5.0
3.9
.0
1.6
52.6
1.4
1.7
3.0
4.2
4,7-
4.6
_
4,8
4.0
6.3
3.8
3.0
2
1.6�
1.4
36.2 _
Gonzales
1.3
1.7
3,4
-----
-5.4
6,3
5,9
4.4
.4
-----
1..
1.3
45J
---
MONTEREY
-
4,8-
6.5
Greenfleld�-
1,8
2.2
3A
-- -
3.4
5.6
6.3
62
4
3.7
----
2.4
1.8
49.5
_
King .City _
King City -Oasts Rd,
-
1.7
2.0
-----
4.4
4.4
5.6
6,1
6,7
,5
5.2
2.2
1.3
49.6 _
4
1.9
3,6
5,3
6.5
7.3
7,4
6.8
5,1
5.3 _
4.0
2,0
1.5
1,2 -
52.7 '
49.1
Lang Valley --�-^�
i,
3.2--4.1
5.6
6.5
7,3
6
3.6
2.0
-Monterey
1.7
_1.9
1.8
2.7
3.5
4.0
4.1
4.3
.2
3.5
2.8
1.4
1.5
36.0
-Monterey� �
1.8�
3.7
4.8
5.3
5.7 15.6
5.3
4.3
3 A
2.4
1.8
46.1
_
Salinas --
Salinas North
1.6
1.2
1,
1.5
1,7
2,7
3.8
4.8
4.7
4.5
4.0
2.9
1.9
1.3
39.1
,9
4.1
4.6
5.2
.5
4.3
3.2
5.1
2.8
1.5
1.2
1.0
36.9
44,0
-San Ardo
1,0
4.5
5.9
7.
8,1
7.1
3.1 1.5
San Juan
1.8
2,1
3.
4,6
5.3
5.5
4.9
3.8
3.2
2.2
1.9
44.2
_
Soledad -
1.7
2.0
3.4
4
5.5
.4
6.5
6,2
5.2
3.7
2.2
1.5
47.7
NAPA
1.8
1.9
3.2
4,
7.3
8.1
7.1
5.5
4.5
2.9
2.1
54.9
Cameros _
D.6
1.0
1,5
3.1
4.6
,5
6.6
6.9
6.2
4.7
3.5
1.4
1,0
45.8
Oakvlile _
1.5
2.9
4.
9
6.9
5. 6.1
7.2
6.4
4.9
3.5
1.6
1.2
47.7
St Helena
1.2
1.5
2.6
7.0
6.2
4.8
3.1 ,
1.4
0.9
44.1
Yountuille - -
1.3
iJ
2,8
5.1
0 _
6,1
�
4.8
3,1
....--
1.S-
_
_ NEVADA
Grass
_
1.1
1.5
4.0
5,7
7.1
7.9
7.1
--
5.3
3.2
3,2
-
1.5
0.9
48.0
Nevada City
1.1
1.5
.6
3.9
5.8
6.9
9
7.0 -
5.3
1.4
0.9
47.4�
ORANGE -------------
Irving -- -
-
5,2
-
�2_.2
.5
-- -
3.7
4J
5.9
6.3
6.2
4.6
3.7
2.6
2.3
49.6
Laguna Beach
2.2
2,7
3.4
3.8
4.6
4.6
4.9
4.4
4.7
3..
3.7
2.4
2.5
2.6
2.0
43.2 T
_
Santa Ana
2
2.7-
3.7
4.5
4.6
5.4
6.2
6,
48.2
PLACER
Auburn -_-
1.2
1.7
1.1-
2.8
4.4
6.1_
7.4
8.3
7.3
_3.4
1.6
1.0
0.6_
50.6
40.5
-_
Blue Canyon --
0.7
2.1
3.4
4.8
6.0
7.2
6.
4.
2.9
0.9
1.5
2.6
4.0
5.8
7.1
7.9
7.0
5.3
.2
1.4
0.9
47.9
Roseville -
1.1
1.7
3.1
4J
6.2
7.7
8.5
7.3
5.6
1.7
1.0
52.2
Soda Springs
0.7
0.7
1.8
3.0
_4.3
5.3
6.2
5.5
4.1
2.
0.7
0.7
35.4 _
_
Tahoe City
0.7_
0.7
0.7
13
3.0
4.3
4.4
5,4
6.1
S.
4,1
2.4
.8
0.6
35,5
36.2
Truckee
0.7
1.7
3.2
5.4 -
6.4
---�
5.7
4.1
2.4
-
0.6
PLUMAS
-
_
Portola
0.7
0.9
1.9
3.5
4.9
5.9
7.3
5.9
4.3
2.7
0.9
5
39.4
V6*-- -- _T-
3,5
4,9
5.9
7.3
5.9
4.4__
2.8
1.2
40.2E
2,0
2.3
3.4
4.4
6,1
7,1
7,6
7.9
6A
3,9
5,0
2.6
3.0
iJX_7
2.2thedral
2.4
3.3
5.3
3.7
6.9
8.7
9.6
9.6
8.7
6.9
CI
�---------
1.6
2.2
4.4
5.1
6,8
7.8
8.7
7.8
5.7
4.0
2.1
1.6-
Coachella
2.9
6.2
8.4
10.5
11.9
12,3
10.1
8.9
6.2
3.8
2,4
26
%pendix A - Reference Evapotranspiration
(ETo)
Ta
e*
Co and City
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
ual
TO
6.4
`11.1
Desert er ......
2.9
4.1-
8.5
11,_
12.1
12,2
9,0
6-
3,9
90.0
.Elsinore -_�
2.1
2.8�
3.9
4.4
5,9
7.1
7.6
7.0
5.8
3.9
2.6
f.9
55.0
3.1
3.6
6.5
8.3
10.5
8.3
11.0
10.8
-9.7
8.3
5.9
4.5
3.7
2.7
83.9
La Qulnta
2.4
2.8
5.2 -
6.5-
-7.2
8.7
8,5
7.9
6.5
-
2.2
6.2-
Mecca '--- �-
2.6
3,3.
5.7
8.6
9.0
8,9
8.8
8.7
8.2
7.9
_6.8
6.9
5.0
4.8
,2
2.4
70.8
68.4
Oasis
z.9
3.3
5.3-
6.1
8.5
2.9
2.3
Palm 6eser ^' - -
2.5
3.4
5.3
6.9
8.7
9.6
9,6
8.7 -
6,9
5
_..
3.0
2.d7-77
1.1,1
1,6
Palm Springs
2.0
2.9_
7.2
8.3
8.5
11.6
8.3
7.2
4.8
.9
2.7
_
Rancho Californla
1.8
2.2
_4.9_-
3A
4.8
5.6
6.3
6,5
6.2
3.7
2.4
1.49.5Rancho
Mirage
2,4
3.3
5.3
6.9
8.7
9,6
9.6
8.7
6
5.0
3.0
2.71.4Ripley
7
3.3
5.6
7.2
7.2
8.7
6.8
8,7
9.3
8.4
7.6
8,5
.2
4,6
2.8
2.67.8
Salton Sea North
3.3
5.5
9.2
6,8
5.2
3.1
2.3
71.7
Temecula East 11
_2.
2,4
2_.4
4.1
419
6.4
7.0
9.6
7.8
7
5.7
4.1
2.6
2,2
56.7
Thermal
3
5.5
7.6
9.1
9,3
.6
7.1
5.2
3.1
2.1
_
72.8
Riverside UC
1.5
2,3
2.
4.2
5.3
5.9
6.6
7.2
6,9
5.4
4.1
2.9
_2.6
56,4
Winchester
2.4
4.1
4.9
6.
6.9
7
7,5
6.0
3.9
2,6
2.1
_
56.8
SACRAMENTO
8.1
7,1
-1.0
_-
_
Fair Oaks
1.0
i.6
\3-4.1.
6.5
7.5
5.2
3.4
1.5
$0.5
_ _y
Sacramento - - r
1,0
1.8
3.2
4.7
6.4
7
8.4
7.2
5.4
3.7
1.7
0.9
51.9
TwitchellIsland
1.2
1.8
3.9X
7.4
.8
9.1
7.8
5.9
3.8
1.7
1.2
57.9
SAN BENITO-
Hollister
San Benito --
1.5
3.1
4.9
5
5.7
6.4
5.9
5.0
3.5.
1.7
1.1
45.1
_
1.2
_1.8
1.6
3.1
3.4
4.6
6
6.4
6.7
6.9
7.1
6.5
4.8
3.7
1.7
1.2
47,2
San Juan Valley �_-
SAN BERNARDINO
Baker _ _-_-
1.4
1.8
4.5
6.
6.4
5.0
3.5
1,8
1.4
49.1
IL
8,9
2.7-
3.9
6.1
3
6.9
10.4
.8
12.2
9,9
11,0
8.9
6.1
3.3
2.1
86.6
. 71.7
'Barstow NE
Big Bear Lake
2,2
2,9
5.
9.0
1
6.8
4.8
2.7
2.1
1.8
2.1
2.6
6.0
7.0
7.6
.1
7.4
5.4
4.1
2,4
1.$
58.6
54.6
Chino -��--�
2.9
9
4.5
.5
5,7 -
6.5
7,1
5.9
4,2
2.6
2.2
2.0
-
Crestllne -
Lake Arrowhead, ' -�
_-
1.5
1.8 -
11.
3.3
4.4
5.5
6,6
7.
--
7.1
5.4
3.5
1,6 -
50.8
4.6
_6.0
7.0
7.6
8.1
.4
5: 4 a
441
2.4
1.8
58.6
_�
Lucerne Valley
Needles
2.2
.9
5.1
6.5
9A
11.0
11.4
7.4 ,
5.0
3.0
4,0
1.8
2.7
75.3
92.1
3.
4.2
6,6
8.9
; 11,0
12.4
12,8
1
8.9
6.9
iVewberry Springs-
2.9
5.3
8.4
9.8
10.9
11,1
9.9
67.6
5.2
3,1
2.0
78.2
San Bernardino
.0
2.7
3.8
4.6
5.7
6.9
7,9
7.4
4.2
2.6
2.0
55.6
Twentyn`lne Palms
VlcOMI le
_ 2.6
2.Q
3.6_
2.6
_
5.9
4.6
7.9
6.2
10A
7.3
11.2
8,9
11.2
10.3
8,
5.9
1.4-
2.2
82.9
4,8
9.0
6.5
7
2.7
2.1
66.2
_
-SAN DIEGO -
Chula VJsta
Escondido SP_V -
_...-
2.2 _
-2.4
2.7
2,6
3.4
3.9
-
3,8
4.7-
4.9
4,7
S,S
4 9
4.5
2.4
2.0
2.3
44.2
5.9
6.5
' 7.1
6.7
5.3
_3._
3.9
--
.8
54.2
SAN DIEGO
Miramar -^ -
2.3
2.5
3,7
4.1
5.1
5.4
6.1
5.8
4.5
y 3.3
2.
; 2.1,
47.1
Oceanside �
2.2
2.7
2.i
3.4
3.7
.4.9
4.6
4.b
5.1
4.1
3.3 -
2,4
,0
42.9
2.3
3,9
4.6
5.6
5.9
6.2
7.8
6.1
'
4.8
3.7
2,6
50.4
_ _
all -
1.5
2.4
3.8
5.1
6.0
7.0
7.3
6,0 __
4.0
2.7-
1.
54.8
2.1
2,1
3,4
34
4.6
4.6
4.1
2.8
2.1
1,6_
/Ramo
2.1
2.4
&-6-.7-5.3
4.3
3.6
2.4-
5
2.1
2J
3.7
4.5
d
5.4
3,8
2.6
2.051.
-2.039.8
2.2
2.3
3,4
. 3.9
3.8
2.8
2.0
s ^�
1.6
2.7
3.7
4,7
6.3
4.0
2.5
1,3
56.0
27
pendix A - Reference Evapotranspiration
Co and City
Jan Feb
Mar
(ETo) Table*
Apr May Jun
Nov
Dec
An I
0
Jul
Aug
Sep
Oct
SAN F C_ISCO
3.7
4.6
'4,9
__
y
2.8
San Franc o --_
1,5
1.3
2.4
3.0
4.8
4,1
1.3
0.7
35.1
_
SAN JOAQ N
Farmington
1.5
1.5
2.9
4.7
6.2
7.6
8,1
6,8
5.3
3.3
1,4
.7 .
50.0
__
Lodi West _
1.0
1.6
3.3
4.3
6.3
6.9
7,3
6.4
4.5
3.0
�V'0.8
46
0.9
1.7
3.4
5.0
6.5
7.5
8.0
7,1
5.2
3.3
32-
0.9
51.2
Stockton --
0.8
1.0
1.5
2.9
4.7
6,2
7.4
8.1
6.8
5.3
,4
0.6
49.1
Tracy _ -� -- - - -.
1.5
2.9
4.5
6.1
7.3
7,9
6.7
5.3
3, 1,3
0.7
48.5
SAN WIS OBISPO
Arroyo Grande _
Atascadero _
Morro Bay _ ^� -
�Nipomo _ - _
Paso Robles _
San Lufs Obispo
San Miguel
San Simeon ��_
2.0
2
2,
2.2
1.5
2.2
2.5
3.2
2.8
3.1 _.f
3.8
3.8
3.9
3.5
5.1
4.3
4.5
4.3
5.7
4.7
6,0
4.5
6,2
4.3
6.7
4.6
6.4
4.6
6.2
4.6
6.1
3.8
5 I3.2
.8
4.9
.2
3.5
4.1
2.4
1,7
2.1
2,9
1.7
10
iJ
40.0
43.7 -
39.9
2.3
52.1
1.6
.0
3.2
4.3
5.5
6.3
5.3�
6.4
7.3
4.6
7.
6
5.1
4.4
5.1
3.7~
2.1
1.4
49.0
2,0
1.6
2.
3,2
3.2
4.1
4.3
4.9
5.0
.5
6.8
4,3
3.5
3.7�
2.4
2,1
1.7
1.4
1.7
43.8_
49.0
2�0
2,0
9
3.5 -�
4,2
4.4
3,5
3.1
2.0
38.1
SAN MATED_
Hal Moon Bay - _ T
Redwood City __ . _
Woodside_
SANTABARBARA-----_-----_�-
3.0
8
4.
33.7 _
42,8 -
1,5
1.5
1.7
1.8
2.4
2.9
3.9
5,2
5,6
4.
6.3
4.3
6.2
4.2
5,6 _
6.2
3.5
4.8
2.8
3,1
1.3
1.7
1.0
LO
1.8
2.2
3,4
6.5
4.8
3.7
2.4
1.8
49.5
-
Betteravia J_-_-
2.1
2.6
4.0
5.2
5.9
5.8
5.4
4.1
3.3
3.4
2.7
2.1
49.1
Carpenteria
Cu�ma - --� -
Goleta
Z.0
2.4
3.2
3.9
4, S.Z
5.5
_5.7
7.7
5.4
4.5
_2,4
2.0
44.9
2.1
2.1
2.4
2.5
3.8
3.9
.1
6,9
5.7
,9
8,5
5.4
5.9
4.2 _
4,5
_4.5
3,2_
2,6
2.8 _
2.0
2,2
59.7
48.1
_ _
Goleta Foothills__ _
Guadalupe_^ _ _
Lo
Lompoc _
Los A amos
2.3
2.6 '
3,
5.4_
5.3_
5.
5.5
_5.7
3,9
2.8
2.3
49.6
2.a
2.0�
1.8
2.2_
2.2
2.
3.7
4.9
4,6
.5
4,6
4.1
3,3
2.4
1.7
41.1
.2__
3.2
3.7
4.1
4.8
Z7
4.6
5.3
5.1111
4.8
5.5
3.9
4.4
3.2
3.7�
TT
2.4
1.7
1,6
41.1
44.6
Santa Barbara
2.0
-
3.2
3.6
4.6
SANTA BARBARA
Santa Niarfa
Santa Ynez
Sisquac -- -- -- -
1
.7
2.1
2.3
3.7
5.1
5.7
5.8
6.1
5.8
6.2
5.6
6.4
5,3
4.2
3.5
2.4
1.9
47.4
2,2
2.5
2,0
1.8+
1.8
3.5
3,8
3.3
5,0
4.1
4.3
6.0
5
3,6
2.2
1.7
48.7
49.2 _
45.6
6.3
6.4
5.8
4.
3A
2.3
1.8
Solvang J
SANTA CLARA
2.0
5,0
5,6
6.1
5,6
4,4
3.7
2.2
1,6
Gliroy
Los Gatos �-
_
1.3
1.5
3,i
4.1
3.9.
5.3
5.0
5.6
5.6
6.1
6.2
5.5
5.5
6.0
4.7
4.7
5.1
3.
3.2
.7
1.7
,7
1.1
1.1
1.4
1.0
43.6
42.9
MorgannHll
1.5
1.8
V2.8
4,2
6.3
7.0
7.1
3.7
49.5
43.0
Palo Alto
1.5
1.8
3.8
5,2�
5,3
b.2
5.6
5.0
3.2
._
San Jose
1.5
^1.8
3.1
4.1
5.5
5.8
6.5
5.9
5.2
3.3
1.8
,0
45.3
SANTA C Z
_
be Lay.. a
1,4
1.9
3,3
4.7
4,9
5.3
5.0
4.8
3.6
3.7
3.8
4.0
3.0
1.6
1.
1.3Sa
1.2onville
k
alley Rd
Cruz
1.2
1.5
1.8
1.8
3.2
2.6
4.5
3.5
4.6
' 4.3
5.4
4.44.8
5.2
4.9
5.0
4.4
4.2
3.1
2.8
2.9
1.6
i,7
1,5
1.8
2.7
3.7
4.6
4.5
1.8
1.2ebb
1.8
2.2
3,7
4,8
5,3
5,7
5.6
5,3
4.3
3.4
2.4
1.8
28
%ppendix A - Reference Evapotra nspl
ration (ETo) Ta e
Mar Apr May Jun
Jul
j
Co ty and City
Tan
Feb
Aug
Sep
Oct
Nov
Dec
foal
-1.0
Burney
0.7
1,0
1.0
2,1
3.
4,9
5.9
7.4
6.4
4.4
2.9
0,9
0.9
0,9
0
.5
FO,6
40,9
41,8
42.1 -
Tall River s
Glenkiurn --__------
0,6
0.6
2,1
2d
3,7
5.0
6.1
7.8
6,7
6.7
4.6
4.7
2.8-
2.8
3.7
S.0
6,3
i.8
McArthur
0.7
1.4
2.9
4.2
5.6
6.9
8.2
7.2
5.0
3.0
1
0.6
46.8
Redding �-
1.2
1.4
_--
2.6
--
4.1
5.6
7,1
8.5
--
7.3
-
5,3
3,2
.4
0.9
48.3
--
3.5
14
--
_SIERRA
DownlevIlle
0.7
1,0
2.3-
5.0
4.5
6.0
7.4
6.2
4.7
4,3-
2
0.9
0.6
41.3 _
39.6
Slerraville
0.7
1.f
2,2
-
3.2
--
5,9
7.3
6.4
.6
0,9
0.5
SISKIYOU
Happy Camp _
MacDoel
4.3
0.5
019
To ! 3,0
5,2
6.1
5.3
4
2.4
0,9
0.5
1.0
0.5
35.1
.0
1.7
3.1
4.5
5.9
7.2
B.1
7.1
.1
3.1
_2.2
2.8
1.5
0.7
49.0
_ _
Mt Shasta -_
-
0.9
2.0_
2.7
IF
3.0
4.5
5.3
6.7
5.
4,0
47
3.7 -
36.0
42.9
34.9
_
0.
1.3
4.0
2.5
5.4
6.3
7.1
6
1.0
0.6
0.5
Weed --- --_ �_--
0,5
.9
415
5.3
6.7
.5
2.0_
0.9
Yreka-- -
0.6
2.1-
3.0
4,9
5.8
7,3
6.5
-
4.3
2.5
0.9
0.5
39.2
----
-SOLANp--- --- -
--
Dixon
0.7
1,4
2
S,2
6,3
7.6
.2
7.2
5.5
4.3
1.6
1.1
52.1
Fai eld
1.1
1.7
4.0
5.5
6,
7.8
6.0
4.8
31
1.4
0.9
45.2
-�
Rai id( ngsi fract
1.6
2.2
3,
5,1
6.8
7ff
8.7
7.8
5,7
5.3
4,0
2.1
1.6
57.1
_
Putah Creek
1.0
1.6
3,2
V.9
6.1
jf.3
6.7
7.0
3.8
1.8
1.2
51.0
Rlo Vista
0.9
1.7
2.8
5.9
_7.9
7.9-
6,5
5.1
3.2
1,3
0.7
47.0
Suisun Valley _�
0.6
1.3
3.0
4.N
5f 7.0
7.7
6.8
5.3
3.8
1.4
0,9
48,3-
Winters
SONOMA
0.9
1,7
3.3
5.0
JEA 7.5
7,9
7.0
5.2
3.5
1.6
1.0
51.0
8ennetC Valley
-_
1.1
1.7
3.2
5.
6.5
6.6
SJ
4.5
3.1
1.5
0.9
44.4
Cloverdale
1.1-
1,4
2.6
.4
5.0
9
--
6,2
5.6
4.5
2.8
1.4
0.7
40.7
_ _-_-
Fort Ross _ _ --
'Healdsburg -_- -_
1.2
1.4
2,
3.0
3,7
4.2
-
6,1
4.3
- .-
5.6
3.4
2.4
1.2
0.5
-31.9
1.2
1,5
- -
3.5
5,0
-
5.
4.5
T.-
2.8
3,7
1.4
0,7
40.8
Lincoln
1,2
-1,7
.8
4,7
6.1
7.4
4
7.3_
5,4
1.9
�i,2
51.9
-Petaluma
1.2
1.2
1,
2,8
3,7
4.6
5.6
5.9
3
4.5
2.9
2.9
1.4
0.9
39.6
Santa Rosa
2.8
3.7
5.0
6.0
6
1.5
1,5
0.7
42.0
_Valley of the Moon -
1.0
.6
3.0
4.5
5.6
6.6
7.1
4.7
3,3
1,0
46,1
Windsor
D.
1,6
3.0
4.5
5.5
6.5
6.5
5,
4.4
3.2
1,4
1.0
44.2
_
Denair�
1.9
3.6
4.7
7.0
7.9
8A
6.1
5.3
3.4
1.5
LO
51,4
_ _
La Grange '- --^_
.2
1.5
3.1
4.7
6.2
7.7
8.5
7.3
3A
1.4
0.7
51.2
Modesto _ - --
Newman -- -.�_
0.9
1.4
3.2
4.7
6.4
7,7
8.1
6.8
6.7
-
5,
3.4-
1.4
0,7
49.7
1.0
1.5
3.2
4.6
6.2
7.4
8,1
5,0
.4
1.4
- -
0.7
49.3
-
STANISU4US
----
6.2
Oakdale - - -
Patterson - -
-1.2
1.3
1.5
2.1
3.2
4.7
7.7
8.1
7.1
5.1
3.
1.4
0.7
50.3
4.2
S.
7,9
8.6
.8.2
6.6
5.8
4.0
,9
_1.3
57.3
Turlock - `-_
6.9
1.5
3.2
4.7
6.5
•6.3
7.7
8.2
7.0 -
5.1
3.4
0.7
50.2
50.2 y
SUTTER
Nicolaus
0.9
1.6
3.2
4.9
7.5
8.0
_6.9
5.2
3.4
1.5
9
_
Yuba City
1.3
2.f
2.8
4.4
5.7
7.2
71
6.1
4.7
3.2
1,2
46.7
TEHAM
4.5
_
6.1
_
_
Comin
_
2.9
7.3
8.1
7.2
5.3
3,7-
1.7
1.1
0,7
Ger
1.0
1.8
3.5
5.0
6.6
7,9
8.7
7.4 _
5,8
4,1
1.8
1.1
7 _
_ -
G r Dryland
0.9
1.6
3.2
4.7
6.7
8.4
9.0
7.9
-
6.0
4.2
2.0
110
55,
Bluff -- J _
1.2
. 1.8
2.9
4.4
5.9
7.4
8.5
7.3
5,4
3.5
1.7
1,0
51.1
29
and A - Reference Evapotranspiration
(ETa) Table
_
Cou and City
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
,Sep
Oct
Nov
Dec
A al
0
TRINI-----------
Hay Fork
0.5
1.1
2.3
3.5
4.9
5.9
7.0
6,0
4.5
4.4
2.8
2.7
0.9
40.1
Weaverville - - _
0.6
1.1
2.2
3.3
4.9
5.9
7.3
6.01
0,9
.7
40.0
TULARE _ _
t_ -
4.8_
_
0.9
1.7
_
3.4
6,6 -
7.7
8.2
7.3 '
7.0
5.4
14
4
0.7
0.7
51.6
47.3
_A _
Delano _ _ -
Dinuba
1.0
1.3
2.7
4.1
6.0
7.3
7.7-
4,B
3.
1.4
1.5
1.1
1.9
4.0_
4.9
7.2
7.9
8,1
7.3 '
5.4
1.2
53.6
1 1
_1,5
3.2
4,7
6.2
7.7
B.5
7.3
S,3
.4 1
1.4
0.7
51.2
_ _-
Undcove -
Porterville
Visalia -- - -- -- __-
9
1,
0.9
1.6
1.8
3,0
3A
4.8
4.7
6.5
6.6
7.6
7.7
.1
8.5
7.2
3
3.4 '
3.4
1.6
1.4
0.9
50.6
7.3
0.7
52A
.7
3.3
5.1
6.8
7.7
L9
6
4.9
3.2
1.5
0.8
50.7
TUOLUMNE
6.6
5.1 -
47.5
Grov'oland
1
1.
218
4,1
5.7
7.2
7.
3.3
1.4
0.7
_ _
Sonora -
1.1
.._._..
1.5
- -
-
4A
- --
5.8
7.2
_
6.7
5,1
3.2
1.4
---
0.7
47.6
VENTURA---'--------' -
5.0 _
_
5.9
46.1
_
Camarillo
_ 2.2_
2.2
2.5
3.7
3
5.4
_4.2
3.0
2.5
2.1
_
Oxnard - -
2.5
3.2
4.4
4.6
5.4
4.8
7.8
5.0
4.0-
33
2.4
2.0
42.3
Piru --� --!!_
2.8
2.0
2.2
2.8
2.3
4,1
3,3-
5.6
4,6
6.8
7.6
_5.8
5.2
! 3.7
3.2
61.5 _
Port Hueneme -_
4.9
4.9
3J
3.2
2.5
2.2
43.5
_
Thousand Oaks -- -
2.6
3.4
X
5,
5.9
6.7
6.4
5.4
3,9
2.6
2,4
51,0
Ventura
2.2
2.6
3.24,6
--
5.5
4.9
4.1
3.4
2.5
2.0
43.5
-- --_ _...---- ---
YOLO
-
----
6.4
7.5
9
7.0
0.9
5,0
5.2
3.5
1.6
1.0 •
51.0
Davis - --
__
1.0
1.
3.3
5.0
6.4
7,6
8.
7.1
SA
4.0
1.8
1.0
52,5
-Esparto ' -
1.0
.7
3.4_
2,9
S.5 -
4,4
6.9
6.1
8.544J.S
5.8
4,2
2.0
1.2
55.8
Winters _
1.7
5.8
7.1
7.7
7,9
8.2
_
7
5.3
3.3
1.6
1.0
49.4
Woodland
1.8
3.2y
3.5_�_5.2
4J
6.1
6.4
k5.4
3.7
1.7
1.0
51.6
52,8
_
Zamora ^��
.1�
1,9
7.4
7.8
7.0
4.0
1.9
1.2
YUBA
Browns Valley _ __ _
Srownsvllle
1.0
1.1
1.7
1.4
3.1 4.7
2.6 4.0
6.1
5,7
7.5
6.8
8.5
7,9
7.6
6.$
5.7
S.31.5
1 2.0
1.1
0.9
52.9
47.4
*The values In stable were derived from;
California LAatlon Management Information S stem (CIMIS)
IvapoTransp(ration zones Map, UC Dept. of Land, A
t of Water Resources 1999, and T----I
ti _N
& Water Resources and
_
e Eva otransplration for California, Unlversl of California, Department of Agriculture
Resources (1987) Bulletin 1922 4) Determining Daily Reference Evapotranspiration,
Extension UC Division of A riculture and Natural Resources 1987 _ _ _
Leaflet 21426 -
RE1426
30
Appendix A - Reference Eva otrans iration (ETo
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
ALAMEDA
Fremont
1.5
1.9
3.4
4.7
5.4
6.3
6.7
6.0
4.5
3.4
1.8
1.5
47.0
Livermore
1.2
1.5
2.9
4.4
5.9
6.6
7.4
6.4
5.3
3.2
1.5
0.9
47.2
Oakland
1.5
1.5
2.8
3.9
5.1
5.3
6.0
5.5
4.8
3.1
1.4
0.9
41.8
Oakland Foothills
1.1
1.4
2.7
3.7
5.1
6.4
5.8
4.9
3.6
2.6
1.4
1.0 1
39.6
Pleasanton
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
Union City
1.4
1.8
3.1
4.2
5.4
5.9
6.4
5.7
4.4
3.1
1.5
1.2
44.2
ALPINE
Markleeville
0.7
0.9
2.0
3.5
5.0
6.1
7.3
6.4
4.4
2.6
1.2
0.5
40.6
AMADOR
Jackson
1.2
1.5
2.8
4.4
6.0
7.2
7.9
7.2
5.3
3.2
1.4
0.9
48.9
Shanandoah Valley
1.0
1.7
2.9 1
4.4
5.6
6.8
7.9
7.1
5.2
3.6
1.7
1.0
48.8
BUTTE
Chico
1.2
1.8
2.9
4.7
6.1
7.4
8.5
7.3
5.4
3.7
1.7
1.0
51.7
Durham
1.1
1.8
3.2
5.0
6.5
7.4
7.8
6.9
5.3
3.6
1.7
1.0
51.1
Gridley
1.2
1.8
3.0
4.7
6.1
7.7
8.5
7.1
5.4
3.7
1.7
1.0
51.9
Oroville
1.2
1.7
2.8
4.7
6.1
7.6
8.5
7.3
5.3
3.7
1.7
1.0
51.5
CALAVERAS
San Andreas
1.2
1.5
2.8
4.4
6.0
7.3
7.9
7.0
5.3
3.2
1.4
0.7
48.8
COLUSA
Colusa
1.0
1.7
3.4
5.0
6.4
7.6
8.3
7.2
5.4
3.8
1.8
1.1
52.8
Williams
1.2
1.7
2.9
4.5
6.1
7.2
8.5
7.3
5.3 1
3.4
1.6
1.0
50.8
CONTRA COSTA
Brentwood
1.0
1.5
2.9
4.5
6.1
7.1
7.9
6.7
5.2
3.2
1.4
0.7
48.3
Concord
1.1
1.4
j 2.4
4.0
5.5
5.9
7.0
6.0
4.8
3.2
1.3
0.7
43.4
Courtland
0.9
1.5
1 2.9
4.4
6.1
6.9
7.9
6.7
5.3
3.2
1.4
0.7
48.0
Martinez
1.2
1.4
2.4
3.9
5.3
5.6
6.7
5.6
4.7
3.1
1.2
0.7
41.8
Moraga
1.2
1.5
3.4
4.2
5.5
6.1
6.7
5.9
4.6
3.2
1.6
1.0
44.9
Pittsburg
1.0
1.5
2.8
4.1
5.6
6.4
7.4
6.4
5.0
3.2
1.3
0.7
45.4
Walnut Creek
0.8
1.5
2.9
4.4
5.6
6.7
7.4
6.4
4.7
3.3
1.5
1.0
46.2
DEL NORTE
Crescent City
0.5
0.9
2.0
3.0
3.7
3.5
4.3
3.7
3.0
2.0
0.9
0.5
27.7
ELDORADO
Camino
0.9
1.7
2.5
3.9
5.9
7.2
7.8
6.8
5.1
3.1
1.5
0.9
47.3
FRESNO
Clovis
1.0
1.5
3.2
4.8
6.4
1 7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Coalinga
1.2
1.7
3.1
4.6
6.2
7.2
8.5
7.3
5.3
3.4
1.6
0.7
50.9
Firebaugh
1.0
1.8
3.7
5.7
7.3
8.1
8.2
7.2
5.5
3.9
2.0
1.1
55.4
FivePoints
1.3
2.0
4.0
6.1
7.7
8.5
8.7
8.0
6.2
4.5
2.4
1.2
60.4
Fresno
0.9
1.7
3.3
4.8
6.7
7.8
8.4
7.1
5.2
3.2
1.4
0.6
51.1
Fresno State
0.9
1.6
3.2
5.2
7.0
1 8.0
8.7
7.6
5.4
3.6
1.7
0.9
53.7
Friant
1.2
1.5
3.1
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
1 0.7
51.3
Kerman
0.9
1.5
3.2
4.8
6.6
7.7
8.4
1 7.2
5.3
3.4
1.4
0.7
51.2
Kingsburg
1.0
1.5
3.4
4.8
6.6
7.7
8.4
7.2
5.3
1 3.4
1.4
0.7
51.6
Mendota
1.5
2.5
4.6
6.2
7.9
8.6
8.8
7.5
5.9
4.5
2.4
1.5
61.7
Orange Cove
1.2
1.9
3.5
4.7
7.4
8.5
8.9
7.9
5.9
3.7
1.8
1.2
56.7
Panoche
1.1
2.01
4.0
5.6
7.8
8.5
8.3
7.3
5.6
3.9
1.8
1.2
57.2
Parlier
1 1.0
1 1.9
1 3.6
5.2
6.8
7.6
8.1
7.0
5.1
3.4
1.7
0.9
52.0
31
Appendix A - Reference Eva otrans iration (ET61
Table*
Count and CityJan
Feb
Mar
Apr
May
Jun
Jul
AugSe
Oct
Nov
Dec
Annual
ETo
FRESNO
Reedley
1.1
1.5
3.2
4.7
6.4
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.3
Westlands
0.9
1.7
3.8
6.3
8.0
8.6
8.6
7.8
5.9
4.3
2.1
1.1
58.8
GLENN
Orland
1.1
1.8
3.4
5.0
6.4
7.5
7.9
6.7
5.3
3.9
1.8
1.4
52.1
Willows
1.2
1.7
2.9
4.7
6.1
7.2
8.5
7.3
5.3
3.6
1.7
1.0
51.3
HUMBOLDT
Eureka
0.5
1.1
2.0
3.0 1
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Ferndale
0.5
1.1
2.0
3.0
3.7
3.7
3.7
3.7
3.0
2.0
0.9
0.5
27.5
Garberville
0.6
1.2
2.2
3.1
4.5
5.0 1
5.5
4.9
3.8
2.4
1.0
0.7
34.9
Hoopa
0.5
1.1
2.1
3.0
4.4
5.4
6.1
5.1
3.8
2.4
0.9
0.7
35.6
IMPERIAL
Brawley
2.8
3.8 1
5.9
8.0
10.4
11.5
11.7
10.0
8.4
6.2
3.5
2.1
84.2
Calipatria/Mulberry
2.4
3.2
5.1
6.8
8.6 1
9.2
9.2
8.6
7.0
5.2
3.1
2.3
70.7
El Centro
2.7
3.5
5.6
7.9
10.1
11.1
11.6
9.5
8.3
6.1
3.3
2.0
81.7
Holtville
2.8
3.8
5.9
7.9
10.4
11.6 1
12.0
10.0
8.6
6.2
3.5
2.1
84.7
Meloland
2.5
3.2
5.5
7.5
8.9
9.2
9.0
8.5
6.8
5.3
3.1
2.2
71.6
Palo Verde II
2.5
3.3
5.7
6.9
8.5
8.9
8.6
7.9
6.2
4.5
2.9
2.3
68.2
Seeley
2.7
3.5
5.9
7.7
9.7
10.1
9.3
8.3
6.9
5.5
3.4
2.2 1
75.4
Westmoreland
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Yuma
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
INYO
Bishop
1.7
2.7
4.8
6.7
8.2
10.9
7.4
9.6
7.4
4.8
2.5
1.6
68.3
Death Valley Jct
2.2
3.3
5.4
7.7
9.8
11.1
11.4
10.1
8.3
5.4
2.9
1.7
79.1
Independence
1.7
2.7
3.4
6.6
8.5
9.5
9.8
8.5
7.1
3.9
2.0
1.5
65.2
Lower Haiwee Res.
1.8
2.7
4.4
7.1
8.5
9.5
9.8
8.5
1 7.1
4.2
2.6
1.5
67.6
Oasis
2.8
5.9
8.0
10.4
11.7
11.6
10.0
8.4
6.2
3.4
2.1
83.1
KERN
Arvin
R1.
1.8
3.5
4.7
6.6
7.4
8.1
7.3
5.3
3.4
1.7
1.0
51.9
Bakersfield
1.8
3.5
4.7
6.6
7.7
8.5
7.3
5.3
3.5
1.6
0.9
52.4
Bakersfield/Bonanza
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Bakersfield/Greenlee
1.2
2.2
3.7
5.7
7.4
8.2
8.7
7.8
5.7
4.0
2.1
1.2
57.9
Belridge
Blackwells Corner
1.4
1.4
2.2
2.1
4.1
3.8
5.5
5.4
7.7
1 7.0
8.5
7.8
8.6
8.5
7.8
7.7
6.0
5.8
3.8
3.9
2.0
1.9
1.5
1.2
59.2
56.6
Buttonwillow
1.0
1.8
3.2
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.5
0.9
52.0
China Lake
2.1
3.2
5.3
7.7
9.2
10.0
11.0
9.8
7.3
4.9
2.7
1.7
74.8
Delano
0.9
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.4
3.4
1.4
0.7
52.0
Famoso
1.3
1.9
3.5
4.8
6.7
7.6
8.0
7.3
5.5
3.5
1.7
1.3
53.1
Grapevine
Inyokern
Isabella Dam
1.3
2.0
1.2
1.8
3.1
1.4
3.1
4.9
2.8
4.4
7.3
4-A
5.6
8.5
5.8
6.8
9.7
7.3
7.6
11.0
7.9
6.8
9.4
7.0
5.9
7.1
5.0
3.4
5.1
3.2
1.9
2.6
6
1.7
1.0
1.7
0.9
49.5
72.4
48.4
Lamont
1.3
2.4
4.4
4.6
6.5
7.0
8.8
7.6
5.7
3.7
1.6
0.8
54.4
Lost Hills
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
1.6
57.1
McFarland/Kern
1.2
2.1
3.7
5.6
7.3
8.0
8.3
7.4
5.6
4.1
2.0
1.2
56.5
Shafter
1.0
1.7
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.5
0.9
52.1
Taft
1.3
1.8
3.1
4.3
6.2
7.3
8.5
7.3
5.4
3.4
1.7
1.0
51.2
Tehachapi
1.4
1.8
3.2
5.0
6.1
7.7
7.9
7.3
5.9
3.4
2.1
1.2
52.9
KINGS
Caruthers
1.6
2.5
4.0
5.7
7.8
8.7
9.3
8.4
6.3
4.4
2.4
1.6
62.7
32
Appendix A - Reference Eva otrans iration (ETo i
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
KINGS
Corcoran
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Hanford
0.9
1.5
3.4
5.0
6.6
7.7
8.3
7.2
5.4
3.4
1.4
0.7
51.5
Kettleman
1.1
2.0
4.0
6.0
7.5
8.5
9.1
8.2
6.1
4.5
2.2
1.1
60.2
Lemoore
0.9
1.5 1
3.4
5.0
6.6
7.7
8.3
7.3
5.4
3.4
1.4
0.7
51.7
Stratford
0.9
1.9
3.9
6.1
7.8
8.6
8.8
7.7
5.9
4.1
2.1
1.0
58.7
LAKE
Lakeport
1.1
1.3
2.6
3.5
5.1
6.0
7.3
6.1
4.7
2.9
1.2
0.9
42.8
Lower Lake
1.2
1.4
2.7
4.5
5.3
6.3
7.4
6.4
5.0
3.1
1.3
0.9
45.4
LASSEN
Buntingville
1.0
1.7 1
3.5 14.9
6.2
7.3
8.4
7.5
5.4
3.4
1.5
0.9
51.8
Ravendale
0.6
1.1
2.3
4.1
5.6
6.7
7.9
7.3
4.7
2.8
1.2
0.5
44.9
Susanville
0.7
1.0
2.2
4.1
5.6
6.5
7.8
7.0
4.6
2.8
1.2
0.5
44.0
LOSANGELES
Burbank
2.1
2.8
3.7
4.7
5.1
6.0
6.6
6.7
5.4
4.0
2.6
2.0
51.7
Claremont
2.0
2.3
3.4
4.6
5.0
6.0 1
7.0
7.0
5.3
4.0
2.7
2.1
51.3
E1 Dorado
1.7
2.2
3.6
4.8
5.1
5.7
5.9 1
5.9
4.4
3.2
2.2
1.7
46.3
Glendale
2.0
2.2
3.3
3.8
4.7
4.8
5.7
5.6
4.3
3.3
2.2
1.8
43.7
Glendora
2.0
2.5
3.6
4.9
5.4
6.1
7.3
6.8
5.7
4.2
2.6
2.0
53.1
Gorman
1.6
2.2
3.4
4.6
5.5
7.4
7.7
7.1
5.9
3.6
2.4
1.1
52.4
Hollywood Hills
2.1
2.2
3.8
5.4
6.0
6.5
6.7
6.4
5.2
3.7
2.8
2.1
52.8
Lancaster
2.1
3.0
4.6
5.9
8.5
9.7
11.0
9.8
7.3
4.6
2.8
1.7
71.1
Long Beach
1.8
2.1
3.3
3.9
4.5
4.3
5.3
4.7
3.7
2.8
1.8
1 1.5
39.7
Los Angeles
2.2
2.7
3.7
4.7
5.5
5.8
6.2
5.9
5.0
3.9
2.6
1.9
50.1
Monrovia
2.2
2.3
3.8
4.3
5.5
5.9
6.9
6.4
5.1
3.2
2.5
1 2.0
50.2
Palmdale
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
Pasadena
2.1
2.7
3.7
4.7
5.1
6.0
7.1
6.7
5.6
4.2
2.6
2.0
52.3
Pearblossom
1.7
2.4
3.7
4.7
7.3
7.7
9.9
7.9
6.4
4.0
2.6
1.6
59.9
Pomona
1.7
2.0
3.4
4.5
5.0
5.8
6.5
6.4
4.7
3.5
2.3
1.7
47.5
Redondo Beach
2.2
2.4
3.3
3.8
4.5
4.7
5.4
4.8
4.4
2.8
2.4
2.0
42.6
San Fernando
2.0
2.7
3.5
4.6
5.5
5.9
7.3
6.7
5.3
3.9
2.6
2.0
52.0
Santa Clarita
2.8
2.8
4.1
5.6
6.0
6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Santa Monica
1.8111.334.5
4.7
5.0
5.4
5.4
3.9
3.4
2.4
2.2
44.2
MADERAChowchilla
1.02
4.7
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.4
Madera
0.92
4.8
6.6
7.8
8.5
7.3
5.3
3.4
1.4
0.7
51.5
Raymond
1.2.0
4.6
6.1
7.6
8.4
7.3
5.2
3.4
1.4
0.7
50.5
MARINBlack
Point
1.1.0
4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
0.9
43.0
Novato
1.3.4
3.5
4.4
6.0
5.9
5.4
4.4
2.81.4
0.7
39.8
Point San Pedro
1.1.0
4.2
5.2
6.2
6.6
5.8
4.3
2.8
1.3
0.9
43.0
San Rafael
1.2.4
3.3
4.0
4.8
4.8
4.9
4.3
2.7
1.3
0.7
35.8
MARIPOSACoulterville
1.1.8
4.4
5.9
7.3
8.1
7.0
5.3
3.41.4
0.7
48.8
Mariposa
1.1.8
4.4
5.9
7.4
8.2
7.1
5.0
3.4
1.4
0.749.0
Yosemite Village
0.7
1.0
.3
3.7
5.1
6.5
7.1
6.1
4.4
2.9
1.1
0.6
41.4
MENDOCINO
Fort Bragg
0.9
1.3
2.2
3.0
3.7
3.5
3.7
3.7
3.0
2.3
1.2
0.7
29.0
Hopland
1.1
1.3
1 2.6
3.4
5.0
5.9
6.5
5.7
4.5
2.8
1.3
0.7
40.9
33
Appendix A - Reference Eva otrans iration (ETo)
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
MENDOCINO
Point Arena
1.0
1.3
2.3
3.0
3.7
3.9
3.7
3.7
3.0
2.3
1.2
0.7
29.6
Sanel Valley
1.0
1.6
3.0
4.6
6.0
7.0
8.0
7.0
5.2
3.4
1.4
0.9
49.1
Ukiah
1.0
1.3
2.6
3.3
5.0
5.8
6.7
5.9
4.5
2.8
1.3
0.7
40.9
MERCED
Kesterson
0.9
1.7
3.4
5.5
7.3
8.2
8.6
7.4
5.5
3.8
1.8
0.9
55.1
Los Banos
1.0
1.5
3.2
4.7
6.1 1
7.4
8.2
7.0
5.3
3.4 1
1.4
0.7
50.0
Merced
1.0
1.5
3.2
4.7
6.6
7.9
8.5
7.2 1
5.3
3.4
1.4
0.7
51.5
MODOC
Modoc/Alturas
0.9
1.4
2.8
3.7
5.1
6.2
7.5
6.6
4.6
2.8
1.2
0.7
43.2
MONO
Bridgeport
0.7
0.9
2.2
3.8
5.5
6.6
7.4
6.7
4.7
2.7
1.2
0.5
43.0
MONTEREY
Arroyo Seco
1.5
2.0
3.7
5.4
6.3 1
7.3
7.2
6.7
5.0
3.9
2.0
1.6
52.6
Castroville
1.4
1.7
3.0
4.2
4.6
4.8
4.0
3.8
3.0
2.6
1.6
1.4
36.2
Gonzales
1.3
1.7
3.4
4.7
5.4
6.3
6.3
5.9
4.4
3.4
1.9
1.3
45.7
Greenfield
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
King City
1.7
2.0
3.4
4.4
4.4
5.6
6.1
6.7
6.5
5.2
2.2
1.3
49.6
King City -Oasis Rd.
1.4
1.9
3.6
5.3
6.5
7.3
7.4
6.8
5.1
4.0
2.0
1.5
52.7
Long Valley
1.5
1.9
3.2
4.1
5.8
6.5
7.3
6.7
5.3
3.6
2.0
1.2
49.1
Monterey
1.7
1.8
2.7
3.5
4.0
4.1
4.3
4.2
3.5
2.8
1.9
1.5
36.0
Pajaro
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
1 3.4
2.4
1.8
46.1
Salinas
1.6
1.9
2.7
3.8
4.8
4.7
5.0
4.5
4.0
2.9
1.9
1.3
39.1
Salinas North
1.2
1.5
1 2.9
4.1
4.6
5.2
4.5
1 4.3
3.2
2.8
1.5
1.2
36.9
San Ardo
1.0
1.7
1 3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
San Juan
1.8
2.1
3.4
4.6
5.3
1 5.7
5.5
4.9
3.8
3.2
2.2
1.9
44.2
Soledad
1.7
2.0
3.4
4.4
5.5
5.4
6.5
6.2
5.2
3.7
2.2
1.5
47.7
NAPA
Angwin
1.8
1.9
3.2
4.7
5.8
7.3
8.1
7.1
5.5
4.5
2.9
2.1
54.9
Cameros
0.8
1.5
3.1
4.6
5.5
6.6
6.9
6.2
4.7
3.5
1.4
1.0
45.8
Oakville
1.0
1.5
2.9
4.7
5.8
6.9
7.2
6.4
4.9
3.5
1.6
1.2
47.7
St Helena
1.2
1.5
2.8
3.9
5.1
6.1
7.0
6.2
4.8
1 3.1
1.4
1 0.9
44.1
Yountville
1.3
1.7
2.8
3.9
5.1
6.0
7.1
1 6.1
4.8
3.1
1.5
0.9
44.3
NEVADA
Grass Valley
LI
1.5
1 2.6
4.0
5.7
7.1
7.9
1 7.1
5.3
3.2
1.5
0.9
48.0
Nevada City
1.1
1.5
2.6
3.9
5.8
6.9
7.9
7.0
5.3
3.2
1.4
0.9
47.4
ORANGE
Irvine
2.2
2.5
3.7
4.7
5.2
5.9
6.3
6.2
4.6
3.7
2.6
2.3
49.6
Laguna Beach
2.2
2.7
3.4
3.8
4.6
1 4.6
4.9
4.9
4.4
3.4
2.4
2.0
43.2
Santa Ana
2.2
2.7
3.7
4.5
4.6
1 5.4
6.2
6.1
4.7
3.7
2.5
2.0
48.2
PLACER
Auburn
1.2
1.7
2.8
4.4
6.1
7.4
8.3
7.3
5.4
3.4
1.6
1.0
50.6
Blue Canyon
0.7
1.1
2.1
3.4
4.8
6.0
7.2
6.1
4.6
2.9
0.9
0.6
40.5
Colfax
1.1
1.5
2.6
4.0
5.8
7.1
7.9
7.0
5.3
3.2
1.4
1 0.9
47.9
Roseville
1.1
1.7
3.1
4.7
6.2
1 7.7
8.5
1 7.3
5.6
1 3.7
1.7
1.0
52.2
Soda Springs
0.7
0.7
1.8
3.0
4.3
5.3
6.2
5.5
4.1
2.5
0.7
0.7
35.4
Tahoe City
0.7
0.7
1.7
3.0
4.3
5.4
6.1
5.6
4.1
2.4
0.8
0.6
35.5
Truckee
0.7
0.7
1.7
1 3.2
4.4
5.4
6.4
5.7
4.1
2.4
0.8
0.6
1 36.2
34
Appendix A - Reference Eva otrans iration (ETo
I Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
PLUMAS
Portola
0.7
0.9
1.9
3.5
4.9
5.9
7.3
5.9
4.3
2.7
0.9
0.5
39.4
Quincy
0.7
0.9
2.2
3.5
4.9
5.9
7.3
5.9
4.4
2.8
1.2
0.5
40.2
RIVERSIDE
Beaumont
2.0
2.3
3.4
4.4
6.1
7.1
7.6
7.9
6.0
3.9
2.6
1.7
55.0
Blythe
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Cathedral City
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Coachella
2.9 1
4.4
6.2
8.4
10.5
11.9
12.3
10.1
8.9
6.2
3.8
2.4
88.1
Desert Center
2.9
4.1
6.4
8.5
11.0
12.1
12.2
11.1
9.0
6.4
3.9
2.6
90.0
Elsinore
2.1
2.8
3.9
4.4
5.9 1
7.1
7.6 1
7.0
5.8
3.9
2.6
1.9
55.0
Indio
3.1
3.6
6.5
8.3
10.5
11.0
10.8 1
9.7
8.3
5.9
3.7
2.7 1
83.9
La Quinta
2.4
2.8
5.2
6.5
8.3
8.7
8.5
7.9
6.5
4.5
2.7
2.2 1
66.2
Mecca
2.6
3.3
5.7
7.2
8.6
9.0
8.8
8.2
6.8
5.0
3.2
2.4
70.8
Oasis
2.9
3.3
5.3
6.1
8.5
8.9
8.7
7.9 1
6.9
4.8
2.9
2.3
68.4
Palm Desert
2.5
3.4
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.6
Palm Springs
2.0
2.9
4.9
7.2
8.3
8.5
11.6
8.3
7.2
5.9
2.7
1.7
71.1
Rancho California
1.8 1
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
Rancho Mirage
2.4
3.3
5.3
6.9
8.7
9.6
9.6
8.7
6.9
5.0
3.0
2.2
71.4
Ripley
2.7
3.3
5.6
7.2
8.7
8.7
8.4
7.6
6.2
4.6
2.8
2.2
67.8
Salton Sea North
2.5
3.3
5.5
7.2
8.8
9.3
9.2
8.5
6.8
5.2
3.1
2.3
71.7
Temecula East 1I
2.3
2.4
4.1
4.9
6.4
7.0
7.8
7.4
5.7
4.1
2.6
2.2
56.7
Thermal
2.4
3.3
5.5
7.6
9.1
9.6
9.3
8.6
7.1
5.2
3.1
2.1
72.8
Riverside UC
2.5
2.9
4.2
5.3
5.9
1 6.6
7.2
6.9
5.4 1
4.1
2.9
2.6
56.4
Winchester
2.3
2.4
4.1
4.9
6.4
6.9
7.7
7.5
6.0
3.9
2.6
2.1
56.8
SACRAMENTO
Fair Oaks
1.0
1.6
1 3.4
4.1
6.5
7.5
8.1
7.1
5.2
3.4
1.5
1 1.0
50.5
Sacramento
1.0
1.8
3.2
4.7
6.4
7.7
8.4
7.2
5.4
3.7
1.7
0.9
51.9
Twitchell Island
1.2
1.8
3.9
5.3
7.4
8.8
9.1
7.8
5.9
1 3.8
1.7
1.2
57.9
SAN BENITO
Hollister
1.5
1.8
3.1
4.3
5.5
5.7
6.4
5.9
5.0
3.5
1.7
1.1
45.1
San Benito
1.2
1.6
3.1
4.6
5.6
6.4
6.9
6.5
4.8
3.7
1.7
1.2
47.2
San Juan Valley
1.4
1.8
3.4
4.5
6.0
6.7
7.1
6.4
5.0
3.5
1.8
1.4
49.1
SAN BERNARDINO
Baker
2.7
3.9
6.1
8.3
10.4
11.8
12.2
11.0
8.9
6.1
3.3
2.1
86.6
Barstow NE
2.2
2.9
5.3
6.9
9.0
10.1
9.9
8.9
6.8
4.8
2.7
2.1
71.7
Big Bear Lake
1.8
2.6
1 4.6
6.0
7.0
1 7.6
8.1
7.4
5.4
4.1
2.4
1 1.8
58.6
Chino
2.1
2.9
3.9
4.5
5.7
6.5
7.3
7.1
5.9
1 4.2
2.6
1 2.0
1 54.6
Crestline
1.5
1.9
3.3
4.4
5.5
6.6
7.8
7.1
5.4
3.5
2.2
1.6
50.8
Lake Arrowhead
1.8
2.6
4.6
6.0
7.0
7.6
8.1
7.4
5.4
4.1
2.4
1.8
58.6
Lucerne Valley
2.2
2.9
5.1
6.5
9.1
11.0
11.4
9.9
7.4
5.0
3.0
1.8
75.3
Needles
3.2
4.2
6.6
8.9
11.0
12.4
12.8
11.0
8.9
6.6
4.0
2.7
92.1
Newberry Springs
2.1
2.9
5.3
8.4
9.8
10.9
11.1
9.9
1 7.6
5.2
3.1
2.0
78.2
San Bernardino
2.0
2.7
3.8
4.6
5.7
6.9
7.9
7.4
5.9
4.2
2.6
2.0
55.6
Twentynine Palms
2.6
3.6
5.9
7.9
10.1
11.2
11.2
10.3
8.6
5.9
3.4
2.2
82.9
Victorville
2.0
2.6
4.6
6.2
7.3
8.9
9.8
9.0
6.5
4.7
2.7
2.1
66.2
SAN DIEGO
Chula Vista
2.2
2.7
3.4
3.8
4.9
4.7
5.5
4.9
4.5
3.4
2.4
2.0
44.2
Escondido SPV
2.4
2.6
3.9
4.7
5.9
6.5
7.1
6.7
5.3
3.9
2.8
2.3
54.2
Miramar
2.3
2.5
3.7
4.1
5.1
5.4
6.1
5.8
4.5
3.3
2.4
2.1
47.1
RR
Appendix A - Reference Eva otrans iration (ETo
Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SAN DIEGO
Oceanside
2.2
2.7
3.4
3.7
4.9
4.6
4.6
5.1
4.1
3.3
2.4
2.0
42.9
Otay Lake
2.3
2.7
3.9
4.6
5.6
5.9
6.2
6.1
4.8
3.7
2.6
2.2
50.4
Pine Valley
1.5
2.4
3.8
5.1
6.0
7.0
7.8
7.3
6.0
4.0
2.2
1.7
54.8
Ramona
2.1
2.1
3.4
4.6
5.2
6.3
6.7
6.8
5.3
4.1
2.8
2.1
51.6
San Diego
2.1
2.4
3.4
4.6
5.1
5.3
5.7
5.6
4.3
3.6
2.4
2.0
46.5
Santee
2.1
2.7
3.7
4.5
5.5
6.1
6.6
6.2
5.4
3.8
2.6
2.0
51.1
Torrey Pines
2.2
2.3
3.4
3.9
4.0
4.1
4.6
4.7
3.8
2.8
2.0
2.0
39.8
Warner Springs
1.6
2.7
3.7 1
4.7
5.7
7.6
8.3
7.7
6.3
4.0
2.5
1.3
56.0
SAN FRANCISCO
San Francisco
1.5
1.3
2.4
3.0
3.7
4.6
4.9
4.8
4.1
2.8
1.3
0.7
35.1
SAN JOAQUIN
Farmington
1.5
1.5
2.9
4.7
6.2
7.6
8.1
6.8
5.3
3.3
1.4
0.7
50.0
Lodi West
1.0
1.6
3.3
4.3
6.3
6.9
7.3
6.4
4.5
3.0
1.4
0.8
46.7
Manteca
0.9
1.7
3.4
5.0
6.5
7.5
8.0
7.1
5.2
3.3
1.6
0.9
51.2
Stockton
0.8
1.5
2.9
4.7
6.2
7.4
8.1
6.8
5.3
3.2
1.4
0.6
49.1
Tracy
1.0
1.5
2.9
4.5
6.1
7.3
7.9
6.7
5.3
3.2
1.3
0.7
48.5
SAN LUIS OBISPO
Arroyo Grande
2.0
2.2
3.2
3.8
4.3
4.7
4.3
4.6
3.8
3.2
2.4
1.7
40.0
Atascadero
1.2
1.5
2.8
3.9
4.5
6.0
6.7
6.2
5.0
3.2
1.7
1.0
43.7
Morro Bay
2.0
2.2
3.1
3.5
4.3
4.5
4.6
4.6
3.8
3.5
2.1
1.7
39.9
Nipomo
2.2
2.5
3.8
5.1
5.7
6.2
6.4
6.1
4.9
4.1
2.9
2.3
52.1
Paso Robles
1.6
2.0
3.2
4.3
5.5
6.3
7.3
6.7
5.1
3.7
2.1
1.4
49.0
San Luis Obispo
2.0
2.2
3.2
4.1
4.9
5.3
4.6
5.5
4.4
3.5
2.4
1.7
43.8
San Miguel
1.6
2.0
3.2
4.3
5.0
6.4
7.4
6.8
5.1
3.7
2.1
1.4
49.0
San Simeon
2.0
2.0
2.9
3.5
4.2
4.4
4.6
1 4.3
3.5
3.1
2.0
1.7
38.1
SAN MATED
Hal Moon Bay
1.5
1.7
2.4
3.0
3.9
1 4.3
4.3
4.2
3.5
1 2.8
1.3
1.0
33.7
Redwood City
1.5
1.8
2.9
3.8
5.2
1 5.3
6.2
5.6
4.8
3.1
1.7
1.0
42.8
Woodside
1.8
2.2
3.4
4.8
5.6
6.3
6.5
6.2
4.8
3.7
2.4
1.8
49.5
SANTA BARBARA
Betteravia
2.1
2.6
4.0
5.2
6.0
5.9
5.8
1 5.4
4.1
3.3
2.7
2.1
49.1
Carpenteria
2.0
2.4
3.2
3.9
4.8
5.2
5.5
1 5.7
1 4.5
3.4
2.4
2.0
44.9
Cuyama
2.1
2.4
1 3.8
15.4
6.9
7.9
8.5
7.7
5.9
4.5
2.6
2.0
59.7
Goleta
2.1
2.5
3.9
1 5.1
5.7
5.7
5.4
5.4
4.2
3.2
2.8
2.2
48.1
Goleta Foothills
2.3
2.6
3.7
5.4
5.3
5.6
5.5
5.7
4.5
3.9
2.8
2.3
49.6
Guadalupe
2.0
2.2
3.2
3.7
4.9
4.6
4.5
4.6
4.1
3.3
2.4
1.7
41.1
Lompoc
2.0
2.2
3.2
3.7
4.8
4.6
4.9
1 4.8
3.9
3.2
2.4
1.7
41.1
Los Alamos
1.8
2.0
3.2
4.1
4.9
5.3
5.7
5.5
4.4
3.7
2.4
1.6
44.6
Santa Barbara
2.0
2.5
3.2
3.8
4.6
5.1
5.5
4.5
3.4
2.4
1.8
1.8
40.6
Santa Maria
1.8
2.3
3.7
5.1
5.7
5.8
5.6
5.3
4.2
1 3.5
2.4
1 1.9
47.4
Santa Ynez
1.7
2.2
3.5
5.0
5.8
6.2
6.4
6.0
4.5
3.6
2.2
1 1.7
48.7
Sisquoc
2.1
2.5
3.8
4.1
6.1
6.3
6.4
5.8
4.7
3.4
2.3
1.8
49.2
Solvang
2.0
2.0
3.3
4.3
5.0
5.6
6.1
5.6
4.4
3.7
2.2
1.6
45.6
SANTA CLARA
Gilroy
1.3
1.8
3.1
4.1
5.3
5.6
6.1
5.5
4.7
3.4
1.7
1.1
43.6
Los Gatos
1.5
1.8
2.8
3.9
5.0
5.6
6.2
5.5
4.7
3.2
1.7
1.1
42.9
Morgan Hill
1.5
1.8
3.4
4.2
6.3
7.0
7.1
6.0
5.1
3.7
1.9
1.4
49.5
Palo Alto
1.5
1.8
2.8
1 3.8
5.2
5.3
6.2
5.6
1 5.0
3.2
1.7
1.0
43.0
MF
Appendix A - Reference Eva otrans iration (ETo
I Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSep
Oct
Nov
Dec
Annual
ETo
SANTA CLARA
San Jose
1.5
1.8
3.1
4.1
5.5
5.8
6.5
5.9
5.2
3.3
1.8
1.0
45.3
SANTA CRUZ
De Laveaga
1.4
1.9
3.3
4.7
4.9
5.3
5.0
4.8
3.6
3.0
1.6
1.3
40.8
Green Valley Rd
1.2
1.8
3.2
4.5
4.6
5.4
5.2
5.0
3.7
3.1
1.6
1.3
40.6
Santa Cruz
1.5
1.8
2.6
3.5
4.3
4.4
4.8
4.4
3.8
2.8
1.7
1.2
36.6
Watsonville
1.5
1.8
2.7
3.7
4.6
4.5
4.9
4.2
4.0
2.9
1.8
1.2
37.7
Webb
1.8
2.2
3.7
4.8
5.3
5.7
5.6
5.3
4.3
3.4
2.4
1.8
46.2
SHASTA
Burney
0.7
1.0
2.1
3.5
4.9
5.9
7.4
6.4
4.4
2.9
0.9
0.6
40.9
Fall River Mills
0.6
1.0
2.1
3.7
5.0
6.1
7.8
6.7
4.6
2.8
0.9
0.5
41.8
Glenburn
0.6
1.0 1
2.1
3.7
5.0
6.3
7.8
6.7 1
4.7
2.8
0.9
0.6
42.1
McArthur
0.7
1.4
2.9
4.2
5.6
6.9
8.2
7.2
5.0
3.0
1.1
0.6
46.8
Redding
1.2
1.4
2.6
4.1
5.6
7.1
8.5
7.3
5.3
3.2
1.4
0.9
48.8
SIERRA
Downieville
0.7
1.0
2.3
3.5
5.0
6.0
7.4
6.2
4.7
2.8
0.9
0.6
41.3
Sierraville
0.7
1.1
2.2
3.2
4.5
5.9
7.3
6.4
4.3
2.6
0.9
0.5
39.6
SISKIYOU
Happy Camp
0.5
0.9
2.0
3.0
4.3
5.2
6.1
1 5.3
4.1
2.4
0.9
0.5
35.1
MacDoel
1.0
1.7
3.1
4.5
5.9
7.2
8.1
7.1
5.1
3.1
1.5
1.0
49.0
Mt Shasta
0.5
0.9
2.0
3.0
4.5
5.3
6.7
5.7
4.0
2.2
0.7
0.5
36.0
Tule lake FS
0.7
1.3
2.7
4.0
5.4
6.3
7.1
6.4
4.7
2.8
1.0
1 0.6
42.9
Weed
0.5
0.9
2.0
2.5
4.5
5.3
6.7
5.5
3.7
2.0
0.9
0.5
34.9
Yreka
0.6
0.9
2.1
3.0
4.9
5.8
7.3
6.5
4.3
2.5
0.9
0.5
39.2
SOLANO
Benicia
1.3
1.4
2.7
3.8
4.9
5.0
6.4
5.5
4.4
2.9
1.2
0.7
40.3
Dixon
0.7
1.4
3.2
5.2
6.3
7.6
8.2
7.2
5.5
4.3
1.6
1.1
52.1
Fairfield
1.1
1.7
1 2.8
4.0
5.5
6.1
7.8
6.0
4.8
3.1
1.4
0.9
45.2
Hastings Tract
1.6
2.2
3.7
5.1
6.8
7.8
8.7
7.8
5.7
4.0
2.1
1.6
57.1
Putah Creek
1.0
1.6
3.2
4.9
6.1
7.3
7.9
7.0
5.3
3.8
1.8
1.2
51.0
Rio Vista
0.9
1.7
2.8
4.4
5.9
6.7
7.9
6.5
5.1
3.2
1.3
0.7
47.0
Suisun Valley
0.6
1.3
3.0
4.7
5.8
7.0
7.7
6.8
5.3
3.8
1.4
0.9
48.3
Winters
0.9
1.7
3.3
5.0
6.4
7.5
7.9
7.0
5.2
3.5
1.6
1.0
51.0
SONOMA
Bennett Valley
1.1
1.7
3.2
4.1
5.5
1 6.5
6.6
5.7
4.5
3.1
1.5
0.9
44.4
Cloverdale
1.1
1.4
2.6
3.4
5.0
5.9
6.2
5.6
4.5
2.8
1.4
0.7
40.7
Fort Ross
1.2
1.4
2.2
3.0
3.7
4.5
4.2
4.3
3.4
2.4
1.2
0.5
31.9
Healdsburg
1.2
1.5
2.4
3.5
5.0
5.9
6.1
5.6
4.5
2.8
1.4
0.7
40.8
Lincoln
1.2
1.7
2.8
4.7
6.1
7.4
8.4
7.3
5.4
3.7
1.9
1.2
51.9
Petaluma
1.2
1.5
2.8
3.7
4.6
5.6
4.6
5.7
4.5
2.9
1.4
0.9
39.6
Santa Rosa
1.2
1.7
2.8
3.7
5.0
6.0
6.1
5.9
4.5
2.9
1.5
0.7
42.0
Valley of the Moon
1.0
1.6
3.0
4.5
5.6
6.6
7.1
6.3
4.7
3.3
1.5
1.0
46.1
Windsor
0.9
1.6
3.0
4.5
5.5
6.5
6.5
1 5.9
4.4
3.2
1.4
1.0
44.2
STANISLAUS
Denair
1.0
1.9
3.6
4.7
7.0
7.9
8.0
6.1
5.3
1 3.4
1.5
1 1.0
51.4
La Grange
1.2
1.5
3.1
4.7
6.2
7.7
8.5
7.3
5.3
1 3.4
1.4
0.7
51.2
Modesto
0.9
1.4
3.2
4.7
6.4
7.7
8.1
6.8
5.0
3.4
1.4
0.7
49.7
Newman
1.0
1.5
3.2
4.6
6.2
7.4
8.1
6.7
5.0
3.4
1.4
0.7
49.3
Oakdale
1.2
1.5
1 3.2
4.7
6.2
7.7
8.1
7.1
5.1
3.4
1.4
0.7
50.3
37
Appendix A - Reference Eva otrans iration (ETo
I Table*
County and City
Jan
Feb
Mar
Apr
May
Jun
Jul
AugSe
Oct
Nov
Dec
Annual
ETo
STANISLAUS
Patterson
1.3
2.1
4.2
5.4
7.9
8.6
8.2
6.6
5.8
4.0
1.9
1.3
57.3
Turlock
0.9
1.5
3.2
4.7
6.5
7.7
8.2
7.0
5.1
3.4
1.4
0.7
50.2
SUTTER
Nicolaus
0.9
1.6
3.2
4.9
6.3
7.5
8.0
6.9
5.2
3.4
1.5
0.9
50.2
Yuba City
1.3
2.1
2.8
4.4
5.7
7.2
7.1
6.1
4.7
3.2
1.2
0.9
46.7
TEHAMA
Corning
1.2
1.8
2.9
4.5
6.1 1
7.3
8.1
7.2
5.3
3.7
1.7
1.1
50.7
Gerber
1.0
1.8
3.5
5.0
6.6
7.9
8.7
7.4
5.8
4.1
1.8
1.1
54.7
Gerber Dryland
0.9
1.6
3.2
4.7
6.7
8.4
9.0
7.9
6.0
4.2
2.0
1.0
55.5
Red Bluff
1.2
1.8
2.9
4.4
5.9
7.4
8.5
7.3
5.4
3.5
1.7 1
1.0
51.1
TRINITY
Hay Fork
0.5
1.1
2.3
3.5
4.9 1
5.9
7.0
6.0
4.5
2.8
0.9
0.7
40.1
Weaverville
0.6
1.1
2.2
3.3
4.9
5.9
7.3
1 6.0
4.4
2.7
0.9
0.7
40.0
TULARE
Alpaugh
0.9
1.7
3.4
4.8
6.6
7.7
8.2
7.3
5.4
3.4
1.4
0.7
51.6
Badger
1.0
1.3
2.7
4.1
6.0
7.3
7.7
7.0
4.8
3.3
1.4
0.7
47.3
Delano
1.1
1.9
4.0
4.9
7.2
7.9
8.1
7.3
5.4
3.2
1.5
1.2
53.6
Dinuba
1.1
1.5
3.2
4.7
6.2
7.7
8.5
7.3
5.3
3.4
1.4
0.7
51.2
Lindcove
0.9
1.6
3.0
4.8
6.5
7.6
8.1
7.2
5.2
3.4
1.6
0.9
50.6
Porterville
1.2
1.8
3.4
4.7
6.6
7.7
8.5
7.3
5.3
3.4
1.4
0.7
52.1
Visalia
0.9
1.7
3.3
5.1
6.8
7.7
7.9
6.9
4.9
3.2
1.5
0.8
50.7
TUOLUMNE
Groveland
1.1
1.5
2.8
4.1
5.7
7.2
7.9
6.6
5.1
3.3
1.4
0.7
47.5
Sonora
1.1
1.5
2.8
4.1
5.8
7.2
7.9
6.7
5.1
3.2
1.4
0.7
47.6
VENTURA
Camarillo
2.2
2.5
3.7
4.3
5.0
5.2
5.9
5.4
4.2
3.0
2.5
2.1
46.1
Oxnard
2.2
2.5
3.2
3.7
4.4
4.6
5.4
4.8
4.0
3.3
2.4
2.0
42.3
Piru
2.8
2.8
4.1
5.6
6.0
6.8
7.6
7.8
5.8
5.2
3.7
3.2
61.5
Port Hueneme
2.0
2.3
3.3
4.6
4.9
4.9
1 4.9
5.0
3.7
3.2
2.5
2.2
43.5
Thousand Oaks
2.2
2.6
3.4
4.5
5.4
5.9
6.7
6.4
5.4
3.9
2.6
2.0
51.0
Ventura
2.2
2.6
3.2
3.8
4.6
4.7
5.5
4.9
4.1
3.4
2.5
2.0
43.5
POLO
Bryte
0.9
1.7
3.3
5.0
6.4
7.5
7.9
7.0
5.2
3.5
1.6
1.0
51.0
Davis
1.0
1.9
3.3
5.0
6.4
7.6
8.2
1 7.1
5.4
4.0
1.8
1.0
52.5
Esparto
1.0
1.7
3.4
5.5
6.9
8.1
8.5
1 7.5
5.8
4.2
1 2.0
1.2
55.8
Winters
1.7
1.7
2.9
4.4
5.8
7.1
7.9
6.7
5.3
3.3
1.6
1.0
49.4
Woodland
1.0
1.8
3.2
4.7
6.1
7.7
8.2
7.2
5.4
3.7
1.7
1 1.0
51.6
Zamora
1.1
1.9
1 3.5
1 5.2
6.4
7.4
7.8
7.0
5.5
4.0
1.9
1.2
52.8
YUBA
Browns Valley
1.0
1.7
3.1
4.7
1 6.1
7.5
8.5
7.6
5.7
4.1
2.0
1.1
52.9
Brownsville
1 1.1
1.4
2.6
4.0
1 5.7
1 6.8
7.9
6.8
5.3
3.4
1.5
0.9
47.4
* The values in this table were derived from:
1) California Irrigation Management Information System (CIMIS);
2) Reference EvapoTranspiration Zones Map, UC Dept. of Land, Air & Water Resources and California Dept of Water
Resources 1999;and
3) Reference Evapotranspiration for California, University of California, Department of Agriculture and Natural Resources
(1987) Bulletin 1922;
4) Determining Daily Reference Evapotranspiration, Cooperative Extension UC Division of Agriculture and Natural Resources
(1987), Publication Leaflet 21426
38
Appendix B — Sample Water Efficient Landscape WorksheeL
WATER EFFICIENT LANDSCAPE WORKSHEET
Is Wed out by the project applicant end it is a required element of the Landscape Documentation
Please complete all sections (A and 8) of the worksheet.
SECTION A. HYDROZONE INFORM T/ON TABLE
Please complete the Ndrozone table(s) for each hydrozone, Use as many tables as
square footage of landscVe area per hydrozone.
or
Total
thod""
"Hydrozone 'Irrigation MetAl
HW = High Water Use P fs MS = Micro -spray
MW = Moderate Wafer se Plants S = spray
LW = Low Water Us tents R = Rotor
8= Bubbler
D- Drip
0 = Other
to provide the
39
The project's
MA WA = (ETo) (0.
where:
SECT/ON B. WATER BUDGET CALCl/LANONS
Applied Water Allowance shall be calculated using this equation:
7 x LA) + (0.3 x SLA)J
MAWA = Maximum Applie VC ater Allowance (gallons per year)
ETo = Reference Evepotr spiratlon from Appendix A (inches per year)
0.7 = ET Adjustment Fact ETAF)
LA = Landscaped Area Inc--1es Special Landscape Area (square feet)
0.62 = Conversion factor (to ga ns per square foot)
SLA = Portion of the landscape a identified as Special Landscape Area
0.3 = the additional ET Adjustme actor for Special Landscape Area (1.0
Maximum Applied Water Allowance =
Show calculations.
Effective Precipitation fEDot)
Irre feet)
7 = 0.3)
per year
If considering Effective Precipitation, use 25% of/bnnual precipitation. use the following equation to calculate
Maximum Applied Water Allowance:
MAWA= (ETo - Eppt) (0.62) ((0.7 x LA) +y3 x SLA)J
Maximum Applied WaterAllowanc/- _._-----
-------
gallons
Show calculations.
year
40
The proje\'sEstimated Total Water Use is calculated using tj
ETW)(0.62) P IE `4 + SLAJ
where
ETWU = Estimated tot water use per year (gallons per yea
ETo = Reference Eva transpiration (inches per year)
PF = Plant Factor fro UCOLS (see Definitions)
HA = Hydrozone Area (h h, medium, and low water use
SLA = Special Landscape ea (square feet)
0.62 = Conversion Factor (to allons per square foot)
IE = Irrigation Efficiency (ml ' um 0.71)
Hydrozone Table for Calculating U
Please complete the hydrozone table(s). se as many tables
Hydrozone
Plant Water
Use T e s
P t
Factor F
Ar a (HA) PF x HA
uare feet s uare feet
urn
SLA--
41
Appendix B — Sample Water Efficient Landscape Worksheet.
WATER EFFICIENT LANDSCAPE WORKSHEET
This worksheet is filled out by the project applicant and it is a required element of the Landscape Documentation Package.
Reference Evapotranspiration (ETo)
Hydrozone #
/Planting
Description
Plant
Factor (PF)
Irrigation
Method
Irrigation
Efficiency
(IEf
ETAF
(PF/IE)
Landscape
Area (sq, ft,)
ETAF x Area
Estimated Total
Water Use
(ETWU)e
Regular Landscape Areas
Totals
(A)
(B)
Special Landscape Areas
1
1
1
Totals
(C)
(D)
ETWU Total
Maximum Allowed Water Allowance (MAWA)
allydrozone #/Planting Description
E.g
1.) front lawn
2.) low water use plantings
3.) medium water use planting
'Irrigation Method `Irrigation Efficiency
overhead spray 0.75 for spray head
or drip 0.81 for drip
eMA WA (Annual Gallons Allowed) _ (Etc) (0.62) ( (ETAF x LA)
+ ((1-ETAF) x SLA)]
where 0.62 is a conversion factor that converts acre -
inches per acre per year to gallons per square foot per
year, LA is the total landscape area in square feet, SLA
is the total special landscape area in square feet,
and ETAF is .55 for residential areas and 0.45 for non-
residential areas.
ETAF Calculations
Regular Landscape Areas
Total ETAF x Area (B)
Total Area (A)
Average ETAF B _ A
All Landscape Areas
Total ETAF x Area (B+D)
Total Area (A+C)
Sitewide ETAF (B+D) _ (A+C)
°ETWU (Annual Gallons Required) _
Eto x 0.62 x ETAF x Area
where 0.62 is a conversion
factor that converts acre -
inches per acre per year to
gallons per square foot per
year.
Average ETAF for Regular Landscape Areas must
be 0.55 or below for residential areas, and 0.45 or
below for non-residential areas.
42
Appendix C — Sample Certificate of Completion.
CERTIFICA TE OF COMPLETION
This certificate is filed out by the project applicant upon completion of the landscape projecL
\PA1. PROJECT INFORMATION SHEET
Date
Project Name
Name of Project Applicant
Telephone No.
Fax No.
Title
Emall Address
Company
Street Address
City
State
Zip Coda
rrv/ivaar v..«Q. �---a-----
Name
Telepholv.
Fax No.
Title
Email Addres
Comoany
Streat Ad ss
City
state
Zip Code
Property Owner
Twe certify that //we have received copies of 1 the documents within the
and the Certificate of Completion and that i our responsibility to see that
accordance with the Landscape and lrrig on Maintenance Schedule,"
Property Owner Signature
Please answer the que
9. Date the Landscape
2. Date the Landscap
3. Date that a copy
submitted f he
Documentation Package
is malntalned in
Date
q/96s below: 14
rcumentation Package was submitted to the local agency__�—
ocumentation Package was approved by the local agency__
ie Water Efficient Landscape Worksheet (including the Water Budget
local water purveyor ----- —
was
43
PART Z chXirmcAmN OF INSTALLATIONACCORD/NG TO THE LANDSCAPE
DOCUMENTNbed
ACKAGE
Two certify Thpon periodic site observations, the work has been substantially completed lr
with the ordinaat the landscape planting and irrigation installation conform with the criteria
specifications oved Landscape Documentation Package,"
Srgtrafure"
Data
Name (print)
Telephone No.
Fax No.
TNe
EmoN Address
License No. or Certlikelbn No.
compeny
Street Address
ctry
to
Zip Code
`Signer of the landscape design plan, signer of trle
PART 3. IRRIGATION SCHEDULING
Attach parameters for setting the irrigatlon schedule on
l plan, ora licensed rm
PART 4. SCHEDULE OF LANDSCAPE AND IRRIGA I
Attach schedule of Landscape and Irrigation Maintenance per
corm
per ordina Section 492.10.
�(MAI TENANCE
li Section 492. 11.
PART 5. LANDSCAPE IRRIGATION AUDIT REPORT
Attach Landscape Irrigation Audit Report per ordinance Section 2.12.
PART 6. SOIL mANAOEMENT REPORT
Attach soil analysis report, if not prevlou* submitted wit a Landscape Dol
Section 492.5.
Attach documentation verifying implementation of nec mendations from soil
Section 492.5.
Or.
Package per ordinance
report per ordinance
44
Appendix C — Sample Certificate of Completion.
CERTIFICATE OF COMPLETION
This certificate is filled out by the project applicant upon completion of the landscape project.
PART 1. PROJECT INFORMATION SHEET
Date
Project Name
Name of Project Applicant
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Drniert Oddrpcc and Location:
..-J- --- --- --
Street Address Parcel, tract or lot number, if available.
City Latitude/Longitude (optional)
State Zip Code
Drnner4v nwner or hi-m/her desionee:
Name
Telephone No.
Fax No.
Title
Email Address
Company
Street Address
City
State
Zip Code
Property Owner
"I/we certify that I/we have received copies of all the documents within the Landscape Documentation Package
and the Certificate of Completion and that it is our responsibility to see that the project is maintained in
accordance with the Landscape and Irrigation Maintenance Schedule."
Property Owner Signature
Date
Please answer the questions below:
1. Date the Landscape Documentation Package was submitted to the local agency
2. Date the Landscape Documentation Package was approved by the local agency
3. Date that a copy of the Water Efficient Landscape Worksheet (including the Water Budget Calculation) was
submitted to the local water purveyor
45
PART 2. CERTIFICATION OF INSTALLATION ACCORDING TO THE LANDSCAPE
DOCUMENTATION PACKAGE
1/we certify that based upon periodic site observations, the work has been completed in accordance with the
ordinance and that the landscape planting and irrigation installation conform with the criteria and specifications of
the approved Landscape Documentation Package."
Signature*
Date
Name (print)
Telephone No.
Fax No.
Title
Email Address
License No. or Certification No.
Company
Street Address
City
State
Zip Code
*Signer of the landscape design plan, signer of the Irrigation plan, or a licensed landscape conuacioi.
PART 3. IRRIGATION SCHEDULING
Attach parameters for setting the irrigation schedule on controller per ordinance Section 492.10.
PART 4. SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE
Attach schedule of Landscape and Irrigation Maintenance per ordinance Section 492.11.
PART S. LANDSCAPE IRRIGATION AUDIT REPORT
Attach Landscape Irrigation Audit Report per ordinance Section 492.12.
PART 6. SOIL MANAGEMENT REPORT
Attach soil analysis report, if not previously submitted with the Landscape Documentation Package per ordinance
Section 492.6.
Attach documentation verifying implementation of recommendations from soil analysis report per ordinance
Section 492.6.
46
Appendix D — Prescriptive Compliance Option
(a) This appendix contains prescriptive requirements which may be used as a compliance option to the Model
Water Efficient Landscape Ordinance.
(b Compliance with the following items is mandatory and must be documented on a landscape plan in order to
use the prescriptive compliance option:
(1) Submit a Landscape Documentation Package which includes the following elements:
A date
(B) project applicant
(C) project address (if available parcel and/or lot number(s))
(D) total landscape area (square feet), including a breakdown of turf and plant material
(E) project type (ems new, rehabilitated public private cemetery, homeowner -installed)
(F) water supply type (e.g., potable recycled well) and identify the local retail water purveyor if
the applicant is not served by a private well
(G) contact information for the project applicant and property owner
(H) applicant signature and date with statement "I agree to comply with the requirements of the
prescriptive compliance option to the MWELO".
(2) Incorporate compost at a rate of at least four cubic yards per 1,000 square feet to a depth of six inches
into landscape area (unless contra -indicated by a soil test);
(3) Plant material shall comply with all of the following;
(A) For residential areas install climate adapted plants that require occasional little or no
summer water (averse WUCOLS plant factor 0.3) for 75% of the plant area excluding edibles
and areas using recycled water; For non-residential areasinstall climate adapted plants that
require occasional little or no summer water (average WUCOLS plant factor 0.3) for 100% of
the plant area excluding edibles and areas using recycled water;
(B) A minimum three inch (3") layer of mulch shall be applied on all exposed soil surfaces of
planting areas except in turf areascreaming or rooting groundcovers, or direct seeding
applications where mulch is contraindicated.
(4) Turf shall comply with all of the following:
(A) Turf shall not exceed 25% of the landscape area in residential areas, and there shall be no turf
in non-residential areas;
(B) Turf shall not be planted on sloped areas which exceed a slope of I foot vertical elevation
change for every 4 feet of horizontal length;
(C) Turf is prohibited inparkways less than 10 feet wide unless the parkway is adjacent to a
parking strip and used to enter and exit vehicles Any turf in parkways must be irrigated by sub-
surface irrigation or by other technology that creates no overspray or runoff.
(5) Irrigation systems shall comply with the following:
(A) Automatic irrigation controllers are required and must use evapotranspiration or soil
moisture sensor data and utilize a rain sensor.
(B) Irrigation controllers shall be of a type which does not lose programming data in the event the
primary power source is interrupted.
(C) Pressure regulators shall be installed on the irrigation_ system to ensure the dynamic pressure
of the system is within the manufacturers recommended pressure range.
(D) Manual shut-off valves (such as agate valve ball valve or butterfly valve) shall be installed
as close as possible to the point of connection of the water supply.
(E) All irrigation emission devices must meet the requirements set in the ANSI standard,
ASABEACC 802 2014 "Landscape Irrigation_Sprinkler and Emitter Standard," All sprinkler
heads installed in the landscape must document a distribution uniformity low quarter of 0.65 or
higher using the protocol defined in ASABEACC 802-2014.
(F) Areas less than ten (10) feet in width in any direction shall be irrigated with subsurface
irrigation or other means that produces no runoff or overspray.
47
(6) For non-residential projects with landscape areas of 1,000 sq. ft. or more, a private submeter(s) to
measure landscape water use shall be installed.
(c) At the time of final inspection, the permit applicant must provide the owner of the property with a certificate
of completion, certificate of installation, irrigation schedule and a schedule of landscape and irrigation
maintenance.
48
CITY OF VERNON CITY COUNCIL MEETING
November 7, 2017
ORDINANCE NO. 1248 SUMMARY
(Amending Chapter 25 of the Vernon Municipal Code and adopting by reference the
Department of Water Resources State Model Landscaping Ordinance; and repealing all
ordinances or parts of ordinances in conflict therewith)
A CERTIFIED COPY OF THE FULL TEXT OF PROPOSED ORDINANCE NO. 1248
IS AVAILABLE IN THE OFFICE OF THE CITY CLERK LOCATED AT 4305
SANTA FE AVENUE, VERNON, CALIFORNIA.
Ordinance No. 1248 was duly introduced at a regular meeting of the City Council of the
City of Vernon held on November 7, 2017. Ordinance No. 1248 is scheduled to be
considered for adoption by said Council at a regular meeting to be held on November 21,
2017.
The proposed Ordinance No. 1248 would amend Chapter 25 of the Vernon Municipal
Code and adopting by reference the Department of Water Resources State Model
Landscaping Ordinance; and repealing all ordinances or parts of ordinances in conflict
therewith.
Maria E. Ayala, City Clerk of the City of Vernon, does hereby certify that Ordinance No.
1248 was duly introduced to the City Council of the City of Vernon at a regular meeting
held on November 7, 2017, and said Ordinance is scheduled to be considered for
adoption at a regular meeting of the City Council to be held on November 21, 2017.
Dated: 11 /07/2017
Mari ;E Ayala, Ci Clerk
This space is for the County Clerk's Filing Stamp
'�Zuslrrn Group Vutrtiautious, 4lur_
161 S. AVENUE 24, LOS ANGELES, CA 90031
323 221-1092 • FX: 323 221-1090 • www.egpnews.com
PROOF OF PUBLICATION
(2015.5 C.C.P.)
STATE OF CALIFORNIA,
COUNTY OF LOS ANGELES
I am a citizen of the United States and a resident
of the County aforementioned, I am over the age
of eighteen years, and not a party to or interested
in the above -entitled matter. I am the principal
clerk of the printer of
EASTERN GROUP PUBLICATIONS'
EASTSIDE SUN,
NORTHEAST SUN,
BELL GARDENS SUN,
VERNON SUN,
COMMERCE COMET
AND
MONTEBELLO COMET,
newspapers of general circulation, printed
and published THURSDAYS in the County of
Los Angeles, and which newspaper of general
circulation by the Superior Court of the County
of Los Angeles, State of California, under the
date of JUNE 21, 1966,
CASE NUMBER 884861,
that the notice, of which the annexed is printed
copy (set in type not smaller the nonpareil), has
been published in each regular and entire issue
of sail newspaper and not in any supplement
thereof on the following dates, to -wit:
NOVEMBER 09,
all in the year 2017.
1 certify (or declare) under penalty of perjury
that the foregoing is true and correct.
Dated at LOS ANGELES, California,
this 09TTHH day of NOVEMBER, 2017.
�tGl
Signature
CITY OF VERNON
Proof of Publication of
City of Vernon City Council Meeting
November 7, 2017
Ordinance No. 1248 Summary
CITY OF VERNON CITY COUNCIL MEETING
November 7, 2017
ORDINANCE NO. 1248 SUMMARY
(Amending Chapter 25 of the Vernon Municipal Code and adopting by
reference the Department of Water Resources State Model Landscaping
Ordinance; and repealing all ordinances or parts of ordinances in conflict
therewith)
A CERTIFIED COPY OF THE FULL TEXT OF PROPOSED ORDINANCE
NO. 1248 ISAVAILABLE IN THE OFFICE OF THE CITY CLERK LOCATED
AT 4305 SANTA FE AVENUE, VERNON, CALIFORNIA.
Ordinance No. 1248 was duly introduced at a regular meeting of the City
Council of the City of Vernon held on November 7, 2017. Ordinance No.
1248 is scheduled to be considered for adoption by said Council at a
regular meeting to be held on November 21, 2017.
The proposed Ordinance No. 1248 would amend Chapter 25 of the
Vernon Municipal Code and adopting by reference the Department of
Water Resources State Model Landscaping Ordinance; and repealing all
ordinances or parts of ordinances in conflict therewith.
Maria E. Ayala, City Clerk of the City of Vernon, does hereby certify that
Ordinance No. 1248 was duly introduced to the City Council of the City
of Vernon at a regular meeting held on November 7, 2017, and said
Ordinance is scheduled to be considered for adoption at a regular meeting
of the City Council to be held on November 21, 2017.
Dated: 11/07/2017 Maria E. Ayala , City Clerk
CITY OF VERNON CITY COUNCIL MEETING
DECEMBER 5, 2017
ORDINANCE NO. 1248 SUMMARY
(Amending Chapter 25 of the Vernon Municipal Code and adopting by reference the
Department of Water Resources State Model Landscaping Ordinance; and repealing all
ordinances or parts of ordinances in conflict therewith)
A CERTIFIED COPY OF THE FULL TEXT OF ADOPTED ORDINANCE NO. 1248
IS AVAILABLE IN THE OFFICE OF THE CITY CLERK LOCATED AT 4305
SANTA FE AVENUE, VERNON, CALIFORNIA.
On December 5, 2017, the City Council of the City of Vernon approved and adopted
Ordinance No. 1248 amending Chapter 25 of the Vernon Municipal Code and adopting
by reference the Department of Water Resources State Model Landscaping Ordinance;
and repealing all ordinances or parts of ordinances in conflict therewith.
I, Maria E. Ayala, City Clerk of the City of Vernon, do hereby certify that Ordinance No.
1248 was duly approved and adopted by the City Council of the City of Vernon at a
regular meeting held on December 5, 2017, and passed by said Council by the following
vote:
AYES: COUNCILMEMBERS: YBARRA, WOODRUFF-PEREZ,
DAVIS, MARTINEZ, AND LOPEZ
NOES: COUNCILMEMBERS:
ABSTAIN: COUNCILMEMBERS:
Dated: December 5, 2017
Mari, E. Ayala, City Gfcerk
This space is for the County Clerk's Filing Stamp
�iastrrxx 05roup "xxtrtivxtions, �lxxr.
161 S. AVENUE 24, LOS ANGELES, CA 90031
323 221-1092 • FX: 323 221-1090 • www.egpnews.com
PROOF OF PUBLICATION
(2015.5 C.C.P.)
STATE OF CALIFORNIA,
COUNTY OF LOS ANGELES
I am a citizen of the United States and a resident
of the County aforementioned; I am over the age
of eighteen years, and nota partyto or interested
in the above -entitled matter. I am the principal
clerk of the printer of - - - — --
EASTERN GROUP PUBLICATIONS'
EASTSIDE SUN,
NORTHEAST SUN.
BELL GARDENS SUN,
VERNON SUN,
COMMERCE COMET
AND
MONTEBELLO COMET,
newspapers of general circulation, printed
and published THURSDAYS in the County of
Los Angeles, and which newspaper of general
circulation by the Superior Court of the County
of Los Angeles, State of California, under the
date of JUNE 21, 1966,
CASE NUMBER 884861,
that the notice, of which the annexed is printed
copy (set in type not smaller the nonpareil), has
been published in each regular and entire issue
of sail newspaper and not in any supplement
thereof on the following dates, to -wit:
DECEMBER 07,
all in the year 2017.
1 certify (or declare) under penalty of perjury
that the foregoing is true and correct.
Dated at LOS ANGELES, California,
this 07TH day of DECEMBER, 2017.
&C:2 ck\
Signature
CITY OF VERNON
Proof of Publication of
City of Vernon City Council Meeting
December 5. 2017
Ordinance No. 1248 Summary
CITY OF VERNON CITY COUNCIL MEETING
DECEMBER 5, 2017
ORDINANCE NO. 1248 SUMMARY
(Amending Chapter 25 of the Vernon Municipal Code and adopting by
reference the Department of Water Resources State Model Landscaping
Ordinance; and repealing all ordinances or parts of ordinances in conflict
therewith)
A CERTIFIED COPY OF THE FULL TEXT OF ADOPTED ORDINANCE
NO. 1248 IS AVAILABLE IN THE OFFICE OF THE CITY CLERK LOCATED
AT 4305 SANTA FE AVENUE, VERNON, CALIFORNIA.
On December 5, 2017, the City Council of the City of Vernon approved
and adopted Ordinance No. 1248 amending Chapter 25 of the Vernon
Municipal Code and adopting by reference the Department of Water
Resources State Model Landscaping Ordinance; and repealing all
ordinances or parts of ordinances in conflict therewith.
I, Maria E. Ayala, City Clerk of the City of Vernon, do hereby certify that
Ordinance No. 1248 was duly approved and adopted by the City Council
of the City of Vernon at a regular meeting held on December 5, 2017, and
passed by said Council by the following vote:
AYES: COUNCILMEMBERS: YBARRA, WOODRUFF-PEREZ,
DAVIS, MARTINEZ, AND LOPEZ
NOES: COUNCILMEMBERS:
ABSTAIN: COUNCILMEMBERS:
Dated: December 5, 2017
Maria E. Ayala, City Clerk