HomeMy WebLinkAboutCC AG PKT 2010-03-22 #HAGENDA STAFF REPORT
DATE: March 22, 2010
TO: Honorable Mayor and City Council
THRU: David Carmany, City Manager
FROM: Terrence Belanger, Interim Director of Public Works
SUBJECT: RESOLUTION ADOPTING GUIDELINES FOR WATER
EFFICIENT LANDSCAPING (ORDINANCE NO. 1588)
SUMMARY OF REQUEST:
That the City Council adopt Resolution No. 5974 - Guidelines for Water Efficient
Landscaping.
BACKGROUND:
At the January 11, 2010 City Council meeting, the City Council adopted
Ordinance No. 1588 entitled AN ORDINANCE OF THE CITY OF SEAL BEACH
AMENDING THE SEAL BEACH MUNICIPAL CODE BY ADDING THERETO
CHAPTER 9.70 REGARDING WATER EFFICIENT LANDSCAPING ".
According to the following provision of the ordinance, the Guidelines were to be
adopted by resolution by the City Council:
9.70.030 Definitions.
The following definitions are applicable to Title 9 Public Property, ,Public Works,
and Building Regulations - Chapter 9.70 Water Efficient Landscaping:
6. Guidelines refers to the Guidelines for Implementation of the
Water Efficient Landscape Ordinance, as adopted by the City, which describes
procedures, calculations, and requirements for landscape projects subject to this
Chapter. The Guidelines shall be adopted by resolution and may be amended
from time to time.
This step was not done at the time of adoption of the ordinance. This is brought
to the Council for adoption at this time - there are no changes to the guidelines
that were presented at the January meeting.
Agenda Item H
Page 2
FINANCIAL IMPACT:
No fiscal impact.
RECOMMENDATION:
That the City Council adopt Resolution No. 5974 - Guidelines for Water Efficient
Landscaping.
SUBMITTED BY:
Terrence Belanger, Interim
Director of Public Works 0
NOTED AND APPROVED:
David Carman
City Manager
Attachments:
A. Resolution No. 5974
B. Guidelines
RESOLUTION NUMBER 5974
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SEAL
BEACH, CALIFORNIA ADOPTING GUIDELINES FOR WATER
EFFICIENT LANDSCAPING
THE CITY COUNCIL OF THE CITY OF SEAL BEACH DOES HEREBY
RESOLVE:
Section 1. The City Council hereby adopts by resolution the Guidelines for
Water Efficient Landscaping - Ordinance No. 1588 (Title 9 Public Property,
Public Works, and Building Regulations - Chapter 9.70 Water Efficient
Landscaping). Attached hereto as attachment "A" and incorporate by this,
reference.
PASSED, APPROVED and ADOPTED by the City Council of the City of Seal
Beach at a regular meeting held on the 22nd day of March , 2010
by the following vote:
AYES: Council Members
NOES: Council Members
ABSENT: Council Members
ABSTAIN: Council Members
Mayor
ATTEST:
City Clerk
STATE OF CALIFORNIA }
COUNTY OF ORANGE } SS
CITY OF SEAL BEACH }
I, Linda Devine, City Clerk of the City of Seal Beach, do hereby certify that the
foregoing resolution is the original copy of Resolution Number 5974 on file in
the office of the City Clerk, passed, approved, and adopted by the City Council at
a regular meeting held on the 22nd day of March -1 2010.
City Clerk
Resolution No. 5974
(March 22, 2010)
GUIDELINES
FOR IMPLEMENTATION OF THE
CITY OF SEAL BEACH -
WATER EFFICIENT LANDSCAPE
ORDINANCE NO. 1588
(ADOPTED JANUARY 11, 2010)
TABLE OF CONTENTS
Section
Page No.
1 Purpose and Applicability .......................................................... ..............................1
1.1
Purpose ........................................................................... ..............................1
1.2
Applicability .................................................................. ..............................1
2. Submittal Requirements for New Landscape Installations or Landscape
Rehabilitation Projects ............................................................... ..............................2
2.1
Elements of the Landscape Documentation Package .... ..............................3
2.2
Water Efficient Landscape Calculations and Altematives ..........................4
2.3
Soil Management Report ............................................... ..............................6
2.4
Landscape Design Plan .................................................. ..............................7
2.5
Irrigation Design Plan ................................................... .............................10
2.6
Grading Design Plan ..................................................... .............................14
2.7
Certification of Completion .......................................... .............................15
2.8
Post - Installation Irrigation Scheduling ......................... .............................15
2.9
Post - Installation Landscape and Irrigation Maintenance ...........................16
3. Provisions for Existing Landscapes .......................................... .............................16
Appendix A — Example Certification of Design .................. ............................... A -1
Appendix B — Water Efficient Landscape Worksheet ............. ............................B -1
Appendix C — Example Installation Certificate of Completion ...........................0 -1
AppendixD — Definitions .................................................... ............................... D -1
1. Purpose and Applicability
1.1 Purpose
(a) The primary purpose of these Guidelines is to provide procedural and
design guidance for project applicants proposing landscape installation or
rehabilitation projects that are subject to the requirements of the Water
Efficient Landscape Ordinance. This document is also intended for use
and reference by City staff in reviewing and approving designs and
verifying compliance with the Water Efficient Landscape Ordinance. The
general purpose of the Water Efficient Landscape Ordinance is to promote
the design, installation, and maintenance of landscaping in a manner that
conserves regional water resources by ensuring that landscaping projects
are not unduly water -needy and that irrigation systems are appropriately
implemented to minimize water waste.
(b) Other regulations affecting landscape design and maintenance practices
are potentially applicable and should be consulted for additional
requirements. These regulations include but may not be limited to:
(1) State of California Assembly Bill 1881;
(2) National Pollutant Discharge Elimination Permit for the Municipal
Separate Stone Sewer System;
(3) Orange County Fire Authority Regulations for Fuel Modification
in the Landscape;
(4) Chapter 9.37 et al of the City of Seal Beach Municipal Code
dealing with Water Conservation
(5) Zoning Code;
(6) Building Code;
(7) Specific Plans, Master Plans, General Plan, or similar land use and
planning documents; and
(8) Conditions of approval for a specific project
1.2 Applicability
(a) The Water Efficient Landscape Ordinance and these Guidelines apply to
all of the following landscape projects:
(1) New landscape installations or landscape rehabilitation projects by
public agencies or private non - residential developers' with a
landscaped area, including pools or other water features but
excluding hardscape, equal to or greater than 2,500 square feet,
and which are otherwise subject to a discretionary approval of a
landscape plan or which otherwise require a. ministerial permit for
a landscape or water feature.
(2) New landscape installations or landscape rehabilitation projects by
developers or property managers of single - family and multi - family
residential projects or complexes with a landscaped area, including
pools or other water features but excluding hardscape, equal to or
greater than 2,500 square feet, and which are otherwise subject to a
discretionary approval of a landscape plan or which otherwise
require a ministerial permit for a landscape or water feature
(3) New landscape installation projects by individual homeowners on
single - family or multi - family residential lots with a project
landscaped area, including pools or other water features but
1183541 1 Ord. #1588
excluding hardscape, equal to or greater than 5,000 square feet,
and which are otherwise subject to a discretionary approval of a
landscape plan or which otherwise require a ministerial permit for
a landscape or water feature.
(b) A landscape rehabilitation project is subject to the requirements of the
Ordinance and these Guidelines where (i) the modified landscaped area is
greater than 2,500 square feet and represents at least 50% of the total
landscaped area; and (ii) the modifications are planned to occur within one
year. The requirements of the Guidelines may be partially or wholly
waived, at the discretion of the City, for landscape rehabilitation projects
that are limited to replacement plantings with equal or lower water needs
and where the irrigation system is found to be designed, operable and
programmed consistent with minimizing water waste in accordance with
City conservation regulations.
(c) Unless otherwise determined by the City, the Water Efficient Landscape
Ordinance and these Guidelines do 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) plant collections, as part of botanical gardens and arboretums open
to the public.
2. Submittal Requirements for New Landscape Installations or Landscape
Rehabilitation Projects
(a) Discretionary approval is typically required for landscape projects that are
subject to site plan reviews, use permits or where a variance from a local
building code is requested, or other procedural processes apply such that
standard or special conditions of approval may be required by the City.
Discretionary projects with conditions of approval may be approved
administratively by city staff, or acted on formally by the Planning
Commission, City Council, or other jurisdictional authority. A typical
standard condition of approval reads:
"Landscaping for the project shall be designed to
comply with the City's Water Efficient Landscape
Ordinance and with the Guidelines for
Implementation of the Water Efficient Landscape
Ordinance."
Landscape or water features that typically require a ministerial permit,
(i.e., a building, plumbing, electrical, or other similar permit), thereby
triggering compliance with the Water Efficient Landscape Ordinance
requirements independently of the need for discretionary approval include,
but are not limited to, swimming pools, , ponds and certain hardscape
features.
2.1 Elements of the Landscape Documentation Package
(a) A Landscape Documentation Package is required to be submitted by the
project applicant for review and approval prior to the issuance of
ministerial permits for landscape or water features by the City, and prior to
start of construction. Unless otherwise directed by the City, the
Landscape Documentation Package shall include the following elements
either on plan sheets or supplemental pages as directed by the City:
1183541 2 Ord. #1588
(1) Project Information, including, but not limited to, the following:
(a) date;
(b) project name;
(c) project address, parcel, and/or lot number(s);
(d) total landscaped area (square feet) and rehabilitated
landscaped area (if applicable);
(e) project type (e.g., new, rehabilitated, public, private,
cemetery, homeowner - installed);
(i) water supply type (e.g., potable, recycled, or well) and
identification of the local retail water purveyor if the
project applicant is not served by a private well;
(g) checklist or index of all documents in the Landscape
Documentation Package;
(h) project contacts, including contact information for the
project applicant and property owner;
(i) a Certification of Design in accordance with Exhibit A of
these Guidelines that includes a landscape professional's
professional stamp, as applicable, signature, contact
information (including email and telephone number),
license number, and date, certifying the statement that "The
design of this project complies with the requirements of the
City's Water Efficient Landscape Ordinance" and shall
bear the signature of the landscape professional as required
by law; and
(j) any other information the City deems relevant for
determining whether the landscape project complies with
the Water Efficient Landscape Ordinance and these
Guidelines.
(2) Maximum Applied Water Allowance (MAWA) and Estimated
Applied Water Use (EAWU) expressed as annual totals including,
but not limited to, the following:
(a) a Water Efficient Landscape Worksheet for the landscape
project; -
(b) hydrozone information table for the landscape project.
(3) A soil management report or specifications, or specification
provision requiring soil testing and amendment recommendations
and implementation to be accomplished during construction of the
landscape project.
(4) A landscape design plan for the landscape project.
(5) An irrigation design plan for the landscape project.
(6) A grading design plan, unless grading information is included in
the landscape design plan for the landscape project or unless the
landscape project is limited to replacement planting and/or
irrigation to rehabilitate an existing landscaped area.
1183541 3 Ord. #1588
2.2 Water Efficient Landscape Calculations and Alternatives
(a) The project applicant shall provide the calculated Maximum Applied
Water Allowance (MAWA) and Estimated Applied Water Use (EAWU)
for the landscaped area as part of the Landscape Documentation Package
submittal to the City. The MAWA and EAWU shall be calculated based
on completing the Water Efficient Landscape Worksheets (in accordance
with the sample worksheets in Appendix B).
(b) The EAWU allowable for the landscaped area shall not exceed the
MAWA. The MAWA shall be calculated using an evapotranspiration
adjustment factor (ETAF) of 0.7 except for the portion of the MAWA
applicable to any special landscaped areas within the landscape project,
which shall be calculated using an ETAF of 1.0. Where the design of the
landscaped area can otherwise be shown to be equivalently water - efficient, ,
the project applicant may submit alternative or abbreviated information
supporting the demonstration that the annual EAWU is less than the
MAWA, at the discretion of and for the review and approval of the City.
(c) Water budget calculations shall adhere to the following requirements:
(1) The MAWA shall be calculated using the Water Efficient
Landscape Worksheets and equation presented in Appendix B on
page B -1. The example calculation on page B -1 is a hypothetical
example to demonstrate proper use of the equation.
(2) The EAWU shall be calculated using the Water Efficient
Landscape Worksheets and equation presented in Appendix B on
page B -2. The example calculation on page B -2 is a hypothetical
example.
(3) For the calculation of the MAWA and EAWU, a project applicant
shall use the ETo values, as found in the CIMIS Reference
Evapotranspiration Zones Map, Department of Water Resources,
1999. http: / /wwwcimis. water .ca.gov /cimis/pdf/etomapl.pdf
(4) For calculation of the EAWU, the plant water use factor shall be
determined as appropriate to the project location from the Water
Use Efficiency of Landscape Species ( WUCOLS) Species
Evaluation List. The plant factor is 0.1 for very low water use
plants, 0.2 to 0.3 for low water use plants, 0.4 to 0.6 for moderate
water use plants, and 0.7 to 1.0 for high water use plants.
(5) For calculating the EAWU, the plant water use factor shall be
determined for each valve hydrozone based on the higliest- water-
use plant species within the zone. The plant factor for each
hydrozone may be required to be further refined as a "landscape
coefficient," according to protocols defined in detail in the
WUCOLS document, to reflect planting density and microclimate
effects on water need at the option of the project applicant or the
City.
(6) For calculation of the EAWU, the area of a water feature shall be
defined as a high water use hydrozone with a plant factor of 1.0.
(7) For calculation of the EAWU, a temporarily irrigated hydrozone
area, such as an area of highly drought- tolerant native plants that
are not intended to be irrigated after they are fully established,
shall be defined as a very low water use hydrozone with a plant
factor of 0.1.
(8) For calculation of the MAWA, the ETAF for special landscaped
areas shall be set at 1.0. For calculation of the EAWU, the ETAF
for special landscaped areas shall be calculated as the special
1183541 4 Ord. #1588
landscaped area (SLA) plant factor divided by the SLA irrigation
efficiency factor.
(9) Irrigation efficiency shall be calculated using the worksheet and
equation presented in Appendix B on page B -2.
(d) The Maximum Applied Water Allowance shall adhere to the following
requirements:
(1) The Maximum Applied Water Allowance shall be calculated using
the equation presented in Appendix B. The example calculation in
Appendix B is hypothetical to demonstrate proper use of the
equation and does not represent an existing and/or planned
landscape project. These calculations are for planning purposes
only. For actual irrigation scheduling, automatic irrigation,
controllers are required and shall use current ETo data, such as
from the California Irrigation Management Information System
(CIMIS), other equivalent data, or soil moisture sensor data.
2.3 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 certified agronomic soils 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 may include, but is not limited to:
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.
(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 City as part of the
Landscape Documentation Package; or
(b) If significant mass grading is planned, the soil analysis
report shall be submitted to the City as part of the
Certification of Completion.
(c) The soil analysis report shall be made available, in a timely
manner, to the professionals preparing the landscape design
plans and irrigation design plans in order to make any
necessary adjustments to the design plans.
1183541 5 Ord. #1588
(d) The project applicant, or his/her designee, shall submit
documentation verifying implementation of soil analysis
report recommendations to the City with the Certification
of Completion.
2.4 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. At the 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 landscaped area provided
the EAWU in the landscaped area does not exceed the
MAWA. To encourage the efficient use of water, the
following is highly recommended:
1. protection and preservation of non - invasive water -
conserving plant species and water - conserving turf;
2. selection of water - conserving plant species and water -
conserving turf,
3. selection of plants based on disease and pest resistance;
4. selection of trees based on applicable City and local
tree ordinances or tree shading guidelines; and
5. selection of plants from local and regional landscape
program plant lists.
(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 2.5(a)(2)(D) of these Guidelines.
(c) Plants shall be selected and planted appropriately based upon their
adaptability to the climatic, geologic, and topographical conditions of the
project site. To encourage the efficient use of water, the following is
highly recommended for inclusion in the landscape design plan:
(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, and power lines); and
(3) consider the solar orientation for plant placement to maximize
summer shade and winter solar gain.
(d) Turf is discouraged 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) A landscape design plan for projects in fire -prone areas and fuel
modification zones shall comply with requirements of the local Fire
Authority, where applicable. When conflicts between water conservation
and fire safety design elements exist, the fire safety requirements shall
have priority.
1183541 6 Ord. #1588
(t) The use of invasive plant species and/or noxious plant species 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 water efficient
plant species as a group.
(1) Water Features
(a) Recirculating water systems shall be used for water
features.
(b) Where available and consistent with public health,
guidelines, recycled water shall be used as a source for
decorative water features.
(c) The 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.
(2) Mulch and Amendments
(a) A minimum two inch (2 ") 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.
(b) Stabilizing mulching products shall be used on slopes.
(c) The mulching portion of the seed/mulch slurry in hydro -
seeded applications shall meet the mulching requirement.
(d) Soil amendments shall be incorporated according to
recommendations of the soil report and what is appropriate
for the plants selected (see Section 2.3 of these Guidelines).
(h) 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 landscaped area 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);
1183541 7 Ord. #1588
(10) identify location and installation details of any applicable storm
water best management practices that encourage on -site retention
and infiltration of storm water. Storm water best management
practices are encouraged in the landscape design plan and
examples include, but are not limited to:
(a) infiltration beds, swales, and basins that allow water to
collect and soak into the ground;
(b) constructed wetlands and retention ponds that retain water,
handle excess flow, and filter pollutants; and
(c) pervious or porous surfaces (e.g., permeable pavers or
blocks, pervious or porous concrete, etc.) that minimize
runoff.
(11) identify any applicable rain harvesting or catchment technologies
(e.g., rain gardens, cisterns, etc.);
(12) contain the following statement: "I have complied with the criteria
of the Water Efficient Landscape Ordinance and applied them for
the efficient use of water in the landscape design plan;" and
(13) bear the signature of a California - licensed landscape professional.
2.5 Irrigation Design Plan
(a) For the efficient use of water, an irrigation system shall meet all the
requirements listed in this section and the manufacturer's
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) Dedicated landscape water meters are highly recommended
on landscaped areas smaller than 5,000 square feet to
facilitate water management.
(b) Automatic irrigation controllers utilizing either
evapotranspiration or soil moisture sensor data shall be
required for irrigation scheduling in all irrigation systems.
(c) The irrigation 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.
1183541 8 Ord. #1588
(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.
(fl 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
City code (i.e., public health) for additional backflow
prevention requirements.
(p) High flow sensors that detect and report high flow
conditions created by system damage or malfunction are
recommended.
(h) 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.
(i) Relevant information from the soil management plan, such
as soil type and infiltration rate, shall be utilized when
designing irrigation systems.
(j) The design of the irrigation system shall conform to the
hydrozones of the landscape design plan.
(k) Average irrigation efficiency for the project shall be
determined in accordance with the EAWU calculation sheet
in Appendix B. Unless otherwise indicated by the
irrigation equipment manufacturer's specifications or
demonstrated by the project applicant, the irrigation
efficiency of the irrigation heads used within each
hydrozone shall be assumed to be:
Pop-up stream rotator heads = 75%
Stream rotor heads = 75%
Microspray = 75%
Bubbler = 80%
Drip emitter = 85%
Subsurface irrigation = 90%
(1) It is highly recommended that the project applicant inquire
with the City about peak water operating demands (on the
water supply system) or water restridtions that may impact
the effectiveness of the irrigation system.
(m) In mulched planting areas, the use of low volume irrigation
is required to maximize water infiltration into the root zone.
(a) Sprinkler heads and other emission devices shall have
matched precipitation rates, unless otherwise directed by
the manufacturer's recommendations.
1183541 9 Ord. #1588
(o) Head to head coverage is recommended. However,
sprinkler spacing shall be designed to achieve the highest
possible distribution uniformity using the manufacturer's
recommendations.
(p) Swing joints or other riser - protection components are
required on all risers subject to damage that are adjacent to
high traffic areas.
(q) Check valves or anti -drain valves are required for all
irrigation systems.
(r) Narrow or irregularly shaped areas, including turf, less than
eight (8) feet in width in any direction shall be irrigated
with subsurface irrigation or a low volume irrigation ,
system.
(s) 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 landscaped 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 for the landscape project
specifies an alternative design or technology, as part of
the Landscape Documentation Package, and clearly
demonstrates strict adherence to the irrigation system
design criteria in Section 2.5 (a)(1)(H) hereof.
Prevention of overspray and runoff must be confirmed
during an irrigation audit.
4. Slopes greater than 25% shall not be irrigated with an
irrigation system with a precipitation rate exceeding
0.75 inches per hour. This restriction may be modified
if the landscape designer of the landscape project
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.
1183541 10 Ord. #1588
(d) Individual hydrozones that mix plants of moderate and low
water use or moderate and high water use may be allowed
if
1. the plant factor calculation is based on the proportions
of the respective plant water uses and their respective
plant factors; or
2. the plant factor of the higher water using plant is used
for the 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.
(g) The irrigation design plan, at a minimum, shall contain:
1. the location and size of separate water meters for
landscape;
2. the 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. irrigation schedule parameters necessary to program
smart timers specified in the landscape design;
6. the following statement: "I have complied with the
criteria of the Water Efficient Landscape Ordinance and
applied them accordingly for the efficient use of water
in the irrigation design plan;" and
7. the signature of a Califomia- licensed landscape
professional.
2.6 Grading Design Plan
(a) For the efficient use of water, grading of a landscape project site shall be
designed to minimize soil erosion, runoff, and water waste. Finished
grading configuration of the landscaped area, including pads, slopes,
drainage, post - construction erosion control, and stone water control Best
Management Practices, as applicable, shall be shown on the Landscape
Plan unless this information is fully included in separate Grading Plans for
the project, or unless the project is limited to replacement planting and/or
irrigation to rehabilitate an existing landscaped area.
(b) The project applicant shall submit a landscape grading plan that indicates
finished configurations and elevations of the landscaped area including:
(1) height of graded slopes;
1183541 11 Ord. #1588
(2)
drainage patterns;
(3)
pad elevations;
(4)
finish grade; and
(5)
storm water retention improvements, if applicable.
(c) To prevent excessive erosion and runoff, it is highly recommended that the
project applicant:
(1)
grade so that all irrigation and normal rainfall remains within
property lines and does not drain on to non - permeable hardscapes;
(2)
avoid disruption of natural drainage patterns and undisturbed soil;
and
(3)
avoid soil compaction in landscaped areas.
(d) The Grading Design Plan shall contain the following statement: "I have
complied with the criteria of the ordinance and applied them accordingly
for the efficient use of water in the grading design plan" and shall bear the
signature of the landscape professional, as required by law.
2.7 Certification of Completion
(a) Landscape project installation shall not proceed until the Landscape
Documentation Package has been approved by the City and any
ministerial permits required are issued.
(b) The project applicant shall notify the City at the beginning of the
installation work and at intervals, as necessary, for the duration of the
landscape project work to schedule all required inspections.
(c) Certification of Completion of the landscape project shall be obtained
through a Certificate of Use and Occupancy or a Permit Final. The
requirements for the Final Inspection and Permit Closure include submittal
of
(1) A Landscape Installation Certificate of Completion in the form
included as Appendix C of these Guidelines, which shall include:
(i) certification by a landscape professional that the landscape
project has been installed per the approved Landscape
Documentation Package; and (ii) the following statement: "The
landscaping has been installed in substantial conformapoe to the
design plans, and complies with the provisions of the Water
Efficient Landscape Ordinance for the efficient use of wafer in the
landscape."
(2) Documentation of the irrigation scheduling parameters used to set
the controller(s);
(3) An irrigation audit report from a certified irrigation auditor,
documentation of enrollment in regional or local water purveyor 's
water conservation programs, and/or documentation that the
MAWA and EAWU information for the landscape project has
been submitted to the local water purveyor, may be required at the
option of the City.
2.8 Post - Installation Irrigation Scheduling
(a) For the efficient use of water, all irrigation schedules shall be developed,
managed, and evaluated to utilize the minimum amount of water required
1183541 12 Ord. #1588
to maintain plant health. Irrigation schedules shall meet the following
criteria:
controllers.
(1) Irrigation scheduling shall be regulated by automatic irrigation
(2) Overhead irrigation shall be scheduled in accordance with the local
water purveyor's Water Conservation Ordinance. Operation of the
irrigation system outside the normal watering window is allowed
for auditing and system maintenance.
2.9 Post - Installation Landscape and Irrigation Maintenance
Landscapes shall be maintained to ensure water use efficiency in accordance with
Section 9.37 et al.
Provisions for Existing Landscapes
(a) Irrigation of all landscaped areas shall be conducted in a manner
conforming to the rules and requirements and shall be subject to penalties
and incentives for water conservation and water waste prevention, as
determined and implemented by the local water purveyor .
(b) The City and/or the regional or local water purveyor may administer
programs such as irrigation water use analyses, irrigation surveys and/or
irrigation audits, tiered water rate structures, water budgeting by parcel, or
other approaches to achieve landscape water use efficiency community-
wide to a level equivalent to or less than would be achieved by applying a
MAWA calculated with an ETAF of 0.8 to all landscaped areas in the City
over one acre in size.
(c) The architectural guidelines of a common interest development, including
apartments, 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.
(Intentionally Left Blank)
1183541 13 Ord. #1588
Appendix A
CERTIFICATION OF LANDSCAPE DESIGN
I hereby certify that:
(1) I am a professional appropriately licensed in the State of California to provide
professional landscape design services.
(2) The landscape design and water use calculations for the property located at
(provide street address or parcel number(s)) were prepared by me or under my
supervision.
(3) The landscape design and water use calculations for the identified property
comply with the requirements of the City of Sea] Beach Water Efficient Landscape
Ordinance (Municipal Code Section 9.70 - Ordinance No. 1588) and the City of Seal
Beach Guidelines for Implementation of the City of Seal Beach Water Efficient
Landscape Ordinance.
(4) The information I have provided in this Certificate of Landscape Design is true
and correct and is hereby submitted in compliance with the City of Seal Beach Guidelines
for Implementation of the City of Seal Beach Water Efficient Landscape Ordinance.
Print Name
Signature
Date
License Number
Address
Telephone
E -mail Address
Landscape Design Professional's Stamp
(If applicable)
A -1
Appendix B
EXAMPLE WATER EFFICIENT LANDSCAPE WORKSHEET
97u..w.. -h- .. 4116A -, 6.. r--6 0....1 - rr- -- -- -- 01..........1....11. -e.h- ......L.1...•
Point of Connection # 1
Maximum Awflied Water Allowance MAWA
Total MAWA = (ETo x 0.7 x LA in S . Ft. x 0.62 + (ETo x 1.0 x SLA in S . Ft. x 0.62) Gallons per year for LA +SLA
where.
MAWA = Maximum Applied Water Allowance (gallons per year)
ETo = Reference Evapotranspiration Appendix C (inches per year)
0 7 = Evapotranspiration Adjustment Factor (ETAF)
1.0 = ETAF for Special Landscaped Area
LA = Landscaped Area (square feet)
0 62 = Conversion factor (to gallons per square foot)
SLA = Special Landscaped Area (square feet)
Example Calculation: a hypothetical landscape project in Santa Ana, CA with an irrigated landscaped area of 40,000 square feet with 10,000 square feet
of Special Landscaped Area. To calculate MAWA, the annual reference evapotranspiration value for Santa Ana is 48.2 inches as listed in the Reference
Evapotranspiration Table in Appendix C.
ETo
ETAF
LA or SLA
Conversion
MAWA Gallons Per Year
MAWA for LA =
48.2
x
0.7
x
40,000
x
0.62
=
836,752
MAWA for SLA =
48.2
x
1.0
x
10,000
x
0.62
=
298,840
Total MAWA =
50,000
1,135,592 Gallons per year for LA +SLA
B -1
Estimated Applied Water Use
EAWU = ETo x KLx LA x 0.62 = IE = Gallons er ear
where.
K = K, x Kd x K.
EAWU = Estimated Applied Water Use (gallons per year)
K, = species factor (range = 0.1 -0.9) (see WUCOLS list for values)
ETo = Reference Evapotranspiration Appendix C (inches per year)
Kd = density factor (range = 0.5 -1.3) (see WUCOLS for density value ranges)
K = Landscape Coefficient
LA = Landscaped Area (square feet)
K. = microclimate factor (range = 0.5 -1.4) (see WUCOLS)
0 62 = Conversion factor (to gallons per square foot)
IE = Irrigation Efficiency = IME x DU (See definition in Appendix D
WUCOLS - www. owue .water.ca.gov /docs /wucols00.pdf
for example IE percentages)
IME = Irrigation Management Efficiency (90 %)
DU = Distribution Uniformity of irrigation head
Example Calculation:
ETo
KL
LA
Conversion
IE
EAWU Gallons per ear
Special Landscaped Area
48.2
x
1.06
x
10
x
0.62
-
0.75
=
398 453
Cool Season Turf
48.2
x
1.00
x
0
x
0.62
_
0.71
=
0
Warm Season Turf
48.2
x
0.65
x
0
x
0.62
-
0.71
=
0
High Water Using Shrub
48.2
x
0.70
x
0
x
0.62
-
0.71
=
0
Medium Water Using Shrub
48.2
x
0.50
x
15,000
x
0.62
-
0.65
=
344,815
Low Water Using Shrub
48.2
x
0.30
x
125,000
x
10.62
1 -
0.75
1 =
298,840
Very Low Water Using Shrub
48.2
x
0.20
x
0
x
0.62
-
0.71
=
0
Other
48.2
x
0.50
x
0
x
0.62
-
0.71
=
0
Other
48.2
x
0.50
x
0
x
0.62
-
10.71 1
=
0
Total EAWU =
50,000
1,042,109 Gallons pe r year
Compare EAWU with MAWA.
The EAWU (1,042,109 gallons per year) is less than MAWA (1,135,592 gallons per year). For this example, the water budget complies with the
MAWA.
B -2
List sprinkler heads, microspray, and drip emitters here along with average precipitation rate and Distribution Uniformity of Irrigation Head.
S rinkler Head T es
Avera a Preci itation Rate
Distribution Uniformity of Irri ration Head
Dri
Micros pra
Bubbler
Low precipitation rotating nozzles
Stream rotors
B -3
WATER EFFICIENT LANDSCAPE WORKSHEET
This worksheet is filled out by the project applicant for each Point of Connection Please complete all sections of the worksheet
Point of Connection #
Maximum Apiplied Water Allowance MAWA
Total MAWA = ETo x 0.7 x LA in S . Ft. x 0.62 + ETo x 1.0 x SLA in S . Ft. x 0.62) Gallons per year for LA +SLA
where
MAWA = Maximum Applied Water Allowance (gallons per year)
ETo = Reference Evapotranspiration Appendix C (inches per year)
0 7 = Evapotranspiration Adjustment Factor (ETAF)
10 = ETAF for Special Landscaped Area
LA = Landscaped Area (square feet)
0 62 = Conversion factor (to gallons per square foot)
SLA = Special Landscaped Area (square feet)
MAWA Calculation:
ETo
ETAF
LA or SLA
Conversion
MAWA Gallons Per Year
MAWA for LA =
x
0.7
x
x
0.62
—
MAWA for SLA =
x
1.0
x
x
0.62
=
Total MAWA =
B -4
Estimated Aonlied Water Use
EAWU = ETo x KL x LA x 0.62 _ IE = Gallons per year
where
EAWU = Estimated Applied Water Use (gallons per year)
ETo = Reference Evapotranspiration Appendix C (inches per year)
K = Landscape Coefficient
LA = Landscaped Area (square feet)
0 62 = Conversion factor (to gallons per square foot)
IE = Irrigation Efficiency = IME x DU
IME = Irrigation Management Efficiency (90 %)
DU = Distribution Uniformity of irrigation head
KL = K, x Ka x K.
K. = species factor (range = 0.1 -0.9) (see WUCOLS list for values)
Ka = density factor (range = 0.5 -1.3) (see WUCOLS for density value ranges)
K. = microclimate factor (range = 0.5 -1.4) (see WUCOLS)
WUCOLS — www. owue .water.ca.gov /docs /wucols00.pdf
EAWU Calculation:
ETo
KL
LA
Conversion
IE
EAWU Gallons Per Year
Special Landscaped Area
x
x
x
0.62
Cool Season Turf
x
x
x
0.62
Warm Season Turf
x
x
x
0.62
—
—
High Water Using Shrub
x
x
x
0.62
Medium Water Using Shrub
x
x
x
0.62
Low Water Using Shrub
x
x
x
0.62
—
—
Very Low Water Using Shrubs
x
x
x
0.62
=
X
x
x
0.62
-
—
x
x
x
0.62
X
x
x
0.62
—
X
x
x
0.62
X
x
x
0.62
X KX
x
x
0.62
-
—
Other
x
x
0.62
Total EAWU =
List sprinkler heads, microspray, and drip emitters here along with average precipitation rate and Distribution Uniformity of Irrigation Head.
S rinkler Head Tvves
Avernize Precipitation Rate
Distribution Uniformity of Irriization Head
Dri
Micros pra
Bubbler
Low precipitation rotating nozzles
Stream rotors
me
Appendix C
LANDSCAPE INSTALLATION CERTIFICATE OF COMPLETION
I hereby certify that:
(1) I am a professional appropriately licensed in the State of California to provide
professional landscape design services.
(2) The landscape project for the property located at
(provide street address or parcel number(s) was installed by me or under my supervision.
(3) The landscaping for the identified property has been installed in substantial
conformance with the approved Landscape Documentation Package and complies with
the requirements of the City of Seal Beach Water Efficient Landscape Ordinance
(Municipal Code Section 9.70 - Ordinance No. 1588) and the City of Seal Beach
Guidelines for Implementation of the City of Seal Beach Water Efficient Landscape
Ordinance for the efficient use of water in the landscape.
(4) The information I have provided in this Landscape Installation Certificate of
Completion is true and correct and is hereby submitted in compliance with the City of
Seal Beach Guidelines for Implementation of the City of Seal Beach Water Efficient
Landscape Ordinance.
Print Name Date
Signature License Number
Address
Telephone E -mail Address
Landscape Design Professional's Stamp
(If Appropriate)
C -1
Definitions
The terms used in these Guidelines have the meaning set forth below:
Appendix D
"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.
"Conversion factor" means the number that converts acre- inches per acre per year to
gallons per square foot per year.
"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.
"Certified Landscape Irrigation Auditor" means any person with the demonstrated
licensure and/or certification that demonstrates the professional ability to audit the
standards established in these Guidelines and in the Water Efficiency Landscape
Ordinance.
"Certification of Design" means the certification included as Exhibit E of these
Guidelines that must be included in the Landscape Documentation Package pursuant to
Section 2.1 of these Guidelines.
"City" means the City of Seal Beach or its authorized designee.
"Common interest developments" means community apartment projects, condominium
projects, planned developments, and stock cooperatives per Civil Code Section 1351
"Distribution Uniformity" or "DU" is a measure of how uniformly an irrigation head
applies water to a specific target area and theoretically ranges form zero to 100 percent.
"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.
"Emitter" means a drip irrigation emission device that delivers water slowly from the
system to the soil.
"Estimated Applied Water Use" or "EAWU" means the annual total amount of water
estimated to keep plants in a healthy state. It is based on factors such as
evapotranspiration rate, the size of the landscaped area, plant water use factors, and the
irrigation efficiency within each hydrozone.
"Evapotranspiration adjustment factor" or "ETAF" is as defined in these Guidelines
and the Water Efficiency Landscape Ordinance and City practices.
"Evapotranspiration rate" means the quantity of water evaporated from adjacent soil
and other surfaces and transpired by plants during a specified time.
"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.
" Hardscapes" means any durable material or feature (pervious and non - pervious)
installed in or around a landscaped area, such as pavements or walls. Pools and other
water features are considered part of the landscaped area and not considered hardscapes
for purposes of these Guidelines.
" Hydrozone" means a portion of the landscaped area having plants with similar water
needs and typically irrigated by one valvelcontroller station. A hydrozone may be
irrigated or non - irrigated.
"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).
"Invasive plants species" or "noxious" means species of plants not historically found
in California that spread outside cultivated areas and can damage environmental or
economic resources. Invasive plant species may be regulated by county agricultural
agencies as noxious species.
"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.
"Irrigation Management Efficiency" or "IME" means the measurement used to
calculate the irrigation efficiency of the irrigation system for a landscaped project. A
90% IME can be achieved by using evaportranspiration controllers, soil moisture sensors,
and other methods that will adjust irrigation run times to meet plant water needs.
"Irrigation efficiency" or "IE" means the measurement of the amount of water
beneficially used divided by the amount of water applied to a landscaped area. Irrigation
efficiency is derived from measurements and estimates of irrigation system
characteristics and management practices. The minimum average irrigation efficiency for
purposes of these Guidelines is 0.71. Greater irrigation efficiency can be expected from
well designed and maintained systems. The following irrigation efficiency may be
obtained for the listed irrigation heads with an IME of 90 %:
a. Pop -up stream rotator heads = 75%
b. Stream rotor heads = 75%
C. Microspray = 75%
d. Bubbler = 80%
e. Drip emitter = 85%
f. Subsurface irrigation = 90%
"Landscape coefficient" (K ) is the product of a plant factor multiplied by a density
factor and a microclimate factor. The landscape coefficient is derived to estimate water
loss from irrigated landscaped areas and special landscaped areas.
"Landscape Documentation Package" means the package of documents that a project
applicant is required to submit to the City pursuant to Section 2.1 of these Guidelines.
"Landscape Installation Certificate of Completion" means the certificate included as
Exhibit F of these Guidelines that must be submitted to the City pursuant to Section
23(a)(1) of hereof.
"Landscape professional" means a licensed landscape architect, licensed landscape
contractor, or any other person authorized to design a landscape pursuant to Sections
5500.1, 5615, 5641, 5641.1, 5641.2, 5641.3, 5641.4, 5641.5, 5641.6, 6701, 7027.5 of the
California Business and Professions Code, Section 832.27 of Titlel6 of the California
Code of Regulations, and Section 6721 of the California Food and Agriculture Code.
"Landscaped area" means all the planting areas, turf areas, and water features in a
landscape design plan subject to the Maximum Applied Water Allowance and Estimated
Applied Water Use calculations. The landscaped 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).
"Lateral line" means the water delivery pipeline that supplies water to the emitters or
sprinklers from the valve.
"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.
"Main line" means the pressurized pipeline that delivers water from the water source to
the valve or outlet.
"Maximum Applied Water Allowance" or "MAWA" means the upper limit of annual
applied water for the established landscaped area, as specified in Section 2.2 of these
Guidelines. It is based upon the area's reference evapotranspiration, the ETAF, and the
size of the landscaped area. The Estimated Applied Water Use shall not exceed the
Maximum Applied Water Allowance.
"Microclimate" means the climate of a small, specific area that may contrast with the
climate of the overall landscaped area due to factors such as wind, sun exposure, plant
density, or proximity to reflective surfaces.
"Mulch" means any organic material such as leaves, bark, straw or 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.
"Non - pervious" means any surface or natural material that does not allow for the
passage of water through the material and into the underlying soil.
"Operating pressure" means the pressure at which the parts of an irrigation system of
sprinklers are designed to operate at by the manufacturer
"Overspray" means the irrigation water which is delivered beyond the target area.
"Person" means any natural person, firm, joint venture, joint stock company,
partnership, public or private association, club, company, corporation, business trust,
organization, public or private agency, government agency or institution, school district,
college, university, any other user of water provided by the Cityor the local water
purveyor, or the manager, lessee, agent, servant, officer, or employee of any of them or
any other entity which is recognized by law as the subject of rights or duties.
"Pervious" means any surface or material that allows the passage of water through the
material and into the underlying soil.
"Plant factor" or "plant water use factor" is a factor, when multiplied by ETo, that
estimates the amount of water needed by plants. For purposes of this Water Efficient
Landscape Ordinance, the plant factor range for low water use plants is 0 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 these Guidelines are derived from
the Department of Water Resources 2000 publication "Water Use Classification of
Landscape Species."
"Precipitation rate" means the rate of application of water measured in inches per hour.
"Project applicant" means the person submitting a Landscape Documentation Package
required under Section 2.1 to request a permit, plan check, or design review from the
City. A project applicant may be the property owner or his or her designee.
"Property owner" or "owner" means the record owner of real property as shown on the
most recently issued equalized assessment roll.
"Reference evapotranspiration" or "ETo" means a standard measurement of
environmental parameters which affect the water use of plants. ETo is given expressed in
inches per day, month, or year as represented in Appendix C of these Guidelines, 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.
"Recycled water" or "reclaimed water" means treated or recycled waste water of a
quality suitable for non - potable uses such as landscape irrigation and water features. This
water is not intended for human consumption.
"Runoff" means water which is not absorbed by the soil or landscape to which it is
applied and flows from the landscaped area. For example, runoff may result from water
that is applied at too great a rate (application rate exceeds infiltration rate) or when there
is a slope.
"Special Landscaped Areas" or "SLA" means an area of the landscape dedicated solely
to edible plants such as orchards and vegetable gardens, areas irrigated with recycled
water, water features using recycled water, and areas dedicated to active play such as
parks, sports fields, golf courses, and where turf provides a playing surface.
"Sprinkler head" means a device which delivers water through a nozzle.
"Static water pressure" means the pipeline or municipal water supply pressure when
water is not flowing.
"Station" means an area served by one valve or by a set of valves that operate
simultaneously.
"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.
"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.
"Valve" means a device used to control the flow of water in an irrigation system
"Water Efficient Landscape Ordinance" means Ordinance No. 1588, adopted by the
City Council on January 11. 2010 and codified in the Municipal Code in Title 9: Public
Property, Public Works, and Building Regulations - Chapter 9.70: Water Efficient
Landscaping.
"Water Efficient Landscape Worksheets" means the worksheets required to be
completed pursuant to Section 2.2 of these Guidelines and which are included in
Appendix B hereof.
"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 landscaped area.
Constructed wetlands used for on -site wastewater treatment, habitat protection, or storm
water best management practices that are not irrigated and used solely for water treatment
or storm water retention are not water features and, therefore, are not subject to the water
budget calculation.
"Watering window" means the time of day irrigation is allowed.
"WUCOLS" means the Water Use Classification of Landscape published by the
University of California Cooperative Extension, the Department of Water Resources, and
the Bureau of Reclamation, 2000. www. owue.water.ca.gov /docstwucols00