This chapter shall be known as the "City of Encinitas Water
Efficient Landscape Regulations" and may be so cited.
(Ord. 2010-05; Ord. 2016-01)
The State Legislature determined in the Water Conservation in
Landscaping Act (the "Act"),
Government Code Section 65591 et seq.,
that the state's water resources are in limited supply. The Legislature
also recognized that while landscaping is essential to the quality
of life in California, landscape design, installation, maintenance
and management must be water efficient. Consistent with the Legislature's
findings, the purpose of this chapter is to:
A. Promote
the values and benefits of landscaping practices that integrate and
go beyond the conservation and efficient use of water in a manner
at least as effective as the Act and implementing regulations.
B. Establish
a structure for planning, designing, installing, maintaining and managing
water efficient landscapes in new construction and projects and modified
landscapes.
C. Promote
the use, when available, of tertiary treated recycled water for irrigating
landscaping.
D. Use
water efficiently without waste by setting a maximum applied water
allowance (MAWA) as an upper limit for water use and reduce water
use for landscaping to the lowest practical amount.
E. Encourage
water users of existing landscapes to use water efficiently and without
waste.
F. Encourage
landscapes that are planned, designed, installed, managed and maintained
to improve environmental conditions, provide benefits and realize
sustainability goals 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 aesthetic 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.
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 and climate-adapted, non-native plants, avoiding invasive plants
and utilizing integrated pest management with least toxic methods
as the first course of action.
(Ord. 2010-05; Ord. 2016-01)
The following definitions shall apply to this chapter:
"Applied water"
means the portion of water supplied by the irrigation system
to the landscape.
"Automatic irrigation controller"
means a timing device used to remotely control valves that
operate an irrigation system. Automatic irrigation controllers shall
be able to self-adjust and schedule irrigation events using either
evapotranspiration (ETo) (weather-based) or moisture sensor data.
"Building permit"
means a permit to engage in a certain type of construction
on a specific location.
"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 U.S. Environmental Protection Agency's
WaterSense Irrigation Designer Certification Program and the Irrigation
Association's Certified Irrigation Designer Program.
"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 U.S. Environmental Protection
Agency's WaterSense Irrigation Auditor Certification Program and the
Irrigation Association's Certified Landscape Irrigation Auditor Program.
"Compost"
means the safe and stable product of controlled biologic
decomposition of organic materials that is beneficial to plant growth.
"Developer"
means a person who seeks or receives permits for or who undertakes
land development activities who is not a single-family homeowner.
Developer includes a developer's partner, associate, employee, consultant,
trustee or agent.
"Director"
means the Director of Planning and Building or anyone whom
the Director has designated or hired to administer or enforce this
chapter.
"Discretionary permit"
means any permit requiring a decision-making body to exercise
judgment prior to its approval, conditional approval or denial.
"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.
"Establishment period of 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.
"ET adjustment factor (ETAF)"
means a factor of 0.55 for residential areas and 0.45 for
nonresidential areas that when applied to reference evapotranspiration
(ETo), adjusts for plant water requirements and irrigation efficiency,
two major influences on the amount of water that is required for a
healthy landscape.
"Evapotranspiration (ETo)"
means the quantity of water evaporated from adjacent soil
and other surfaces and transpired by plants during a specific time
period.
"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 operation
master valves. This combination flow sensor/controller may also function
as a landscape water meter or submeter.
"Grading"
means any importation, excavation, movement, loosening or
compaction of soil or rock.
"Hardscape"
means any durable surface material, pervious or non-pervious.
"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.
"Invasive species"
means species of plants not historically found in California
that spread outside cultivated areas and may damage environmental
or economic resources.
"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.
"Irrigation efficiency"
means the measurement of the amount of water beneficially
used divided by the water applied. Irrigation efficiency is derived
from measurements and estimates of irrigation system characteristics
and management practices. Irrigation efficiency for purposes of this
ordinance are 0.75 for overhead spray and 0.81 for drip systems.
"Landscape contractor"
means a person licensed by the state of California to construct,
maintain, repair, install or subcontract the development of landscape
systems.
"Landscaped area"
means an area with outdoor plants, turf and other vegetation.
A landscaped area includes a water feature either in an area with
vegetation or that stands alone. A landscaped area may also include
design features adjacent to an area with vegetation when allowed under
Section 23.26.110(B)(6). A landscaped area does not include the footprint
of a building, decks, patio, sidewalk, driveway, parking lot or other
hardscape that does not meet the criteria in Section 23.26.110(B)(6).
A landscaped area also does not include an area without irrigation
designated for non-development such as designated open space or area
with existing native vegetation.
"Landscape design manual"
means the manual, approved by the City that establishes specific
design criteria and guidance to implement the requirements of this
chapter.
"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.
"Low head drainage"
means a sprinkler head or other irrigation device that continues
to emit water after the water to the zone in which the device is located
has shut off.
"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 lines or bubblers.
"Mass grading"
means the movement of soil per the Grading, Erosion, and Sediment Control Ordinance, Municipal Code Chapter
23.24.
"Master shut-off valve"
means 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.
"Maximum applied water allowance (MAWA)"
means the upper limit of annual applied water for the established
landscape area based on the reference evapotranspiration (ETo), the
evapotranspiration adjustment factor (ETAF) and the size of the landscape
area.
"Median"
means an area between opposing lanes of traffic that may
be unplanted or planted.
"Mulch"
means an organic material such as leaves, bark, straw or
inorganic mineral materials such as rocks, gravel or decomposed granite
left loose and applied to the soil surface to reduce evaporation,
suppress weeds, moderate soil temperature or prevent soil erosion.
"New construction"
means, for the purpose of this ordinance, a new building
with a landscape or other new landscape, such as park, playground,
or greenbelt without an associated building.
"Nonresidential 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.
"Overspray"
means the water from irrigation that is delivered outside
an area targeted for the irrigation and makes contact with a surface
not intended to be irrigated.
"Parkway"
means the area between the curb or the edge of the traffic
lane where there is no curb to the property line or easement line
of a public or private roadway. It may be planted or unplanted and
with or without pedestrian egress.
"Pervious"
means any surface or material that allows the passage of
water through the material and into underlying soil.
"Plant factor"
means a factor that when multiplied by the ETo, estimates
the amount of water a plant needs.
"Public water purveyor"
means a public utility, municipal water district, municipal
irrigation district or municipality that delivers water to customers.
"Recreation 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.
"Recycled water"
means waste that has been treated at the highest level required
by the California Department of Health Services for water not intended
for human consumption. "Tertiary treated recycled water" means water
that has been through three levels of treatment including filtration
and disinfection.
"Reference evapotranspiration"
means a standard measurement of environmental parameters
which affect the water use of plants. ETo is given in inches per day,
month, or year and is an estimate of the ETo of a large field of four-inch
to seven-inch tall, cool season turf that is well watered. Reference
ETo is used as the basis of determining the maximum applied water
allowance (MAWA) so that regional differences in climate can be accommodated.
For purposes of this chapter, reference ETo shall be 42.9 inches per
year.
"Runoff"
means water that is not absorbed by the soil or landscape
to which it is applied and flows from the landscaped area.
"Special landscaped area"
means an area of the landscape dedicated to edible plants,
recreational areas, an area irrigated with recycled water or water
features using recycled water.
"Submeter"
means a metering device to measure water applied to the landscape
that is installed after the primary utility meter.
"Subsurface irrigation"
means an irrigation device with a delivery line and water
emitters installed below the soil surface that slowly and frequently
emit small amounts of water into the soil to irrigate plant roots.
"Transitional area"
means a portion of a landscaped area that is adjacent to
a natural or undisturbed area and is designated to ensure that the
natural area remains unaffected by plantings and irrigation installed
on the property.
"Turf"
means a groundcover surface of mowed grass.
"Water feature"
means a design element where open water performs an aesthetic
or recreational function. A water feature includes a pond, lake, waterfall,
fountain, artificial streams, spa and swimming pool. Constructed wetlands
used for on-site wastewater treatment or stormwater best management
practices are not water features.
"WUCOLS"
means Water Use Classification of Landscape Species published
by the University of California Cooperative Extension and the Department
of Water Resources, 2014, or the most recent version thereof.
(Ord. 2010-05; Ord. 2016-01)
A. This
chapter shall apply to the following projects that require a building
permit or a discretionary permit:
1. New
construction projects with an aggregate landscape area equal to or
greater than 500 square feet.
2. Rehabilitated
landscape projects with an aggregate landscape area equal to or greater
than 2,500 square feet.
3. A
model home that includes a landscaped area.
4. A cemetery under limited requirements in Section
23.26.150.
B. 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 compliance option specified in Section
23.26.240.
C. For
project using treated or untreated graywater or rainwater captured
onsite, any lot or parcel within the project that has less than 2,500
square feet or less of aggregate landscape area and meets the lot
or parcel's landscape water requirement (estimated total water use)
entirely with treated or untreated graywater or rainwater captured
onsite is subject only to Section 23.26.240(B)(5).
D. This
chapter shall not apply to the following:
1. A
registered local, state or federal historical site.
2. An
ecological restoration project that does not require a permanent irrigation
system.
3. A
mined land reclamation project that does not require a permanent irrigation
system.
4. Existing
plant collections as part of a botanical garden or arboretum open
to the public.
E. There are specific regulations regarding the coastal bluff outlined in the Coastal Bluff Overlay Zone, Section
30.34.020 of the Municipal Code. If there is a conflict between the standards of this chapter and Section
30.34.020, the standards of Section
30.34.020 shall supersede.
(Ord. 2010-05; Ord. 2016-01; Ord. 2017-07)
A. No
person shall install landscaping for a project subject to this chapter
without the review and approval required by this chapter.
B. A person
constructing a project subject to the requirements of this chapter
shall obtain approval for the landscaped area as follows:
1. A
person applying for a building permit for a single-family residence
that does not require a discretionary permit shall obtain an approval
of the landscaping from the City as part of the permitting process.
2. A person applying for a discretionary permit described in Section
23.26.040:
a. Shall submit a landscape documentation package as required by the discretionary permit application. The landscape documentation package shall include all of the information as specified in Section
23.26.070 except that a soil management report is not required and that the details of the irrigation system do not need to be shown. The landscape documentation package shall show the location of any separate water meters for landscaped areas and shall provide a discussion of the proposed method and type of irrigation and how the goal of water conservation will be attained.
b. Shall obtain approval in accordance with this chapter for landscaping
as part of the permitting process for each building permit for each
project segment that requires installation of a water meter or connection
to an existing water meter.
c. May use "typical" plans for developer-installed landscaping for single-family
homes.
C. Upon
approval of a project and landscaped area associated with a discretionary
or building permit, the City shall provide a copy of the water efficient
landscape worksheet to the local water purveyor.
D. Upon
approval of a project and landscape area associated with a building
permit, the project applicant shall:
1. Submit
a copy of the approved landscape documentation package along with
the record drawings and any other information to the property owner
or designee.
2. Submit
a copy of the water efficient landscape worksheet to the local water
purveyor.
E. A person
issued an approval of a project with a landscaped area shall install
the approved landscaping and irrigation system before final inspection
of the project.
(Ord. 2010-05; Ord. 2016-01)
A. The
Director shall administer and enforce this chapter.
B. The
Director shall prepare a landscape design manual or may designate
the current County of San Diego Landscape Design Manual as the City
landscape design manual to provide guidance to applicants on how to
comply with the requirements of this chapter.
(Ord. 2010-05; Ord. 2016-01)
A. Except as otherwise provided, applications for projects subject to Section
23.26.040 shall include a landscape documentation package that complies with the provisions of this chapter and with the landscape design manual.
B. An applicant for a project described in Section
23.26.040B or Section
23.26.040C is eligible to conform to the prescriptive compliance option specified in Section
23.26.240 of this chapter in lieu of submitting a landscape documentation package.
C. An applicant for a permit for a cemetery is not required to submit a landscape documentation package, but shall comply with Section
23.26.150.
D. The landscape documentation package required by subsection
A of this section shall contain the following:
1. A soil management report and plan that complies with Section
23.26.080 that analyzes the soil within each landscaped area of the project and makes recommendations regarding soil additives. A soil management report is not required for discretionary applications.
2. A landscape design plan describing the landscaping for the project that complies with Section
23.26.090 and an irrigation design plan describing the irrigation for the project that complies with Section
23.26.100. For discretionary applications, the details of the irrigation system do not need to be shown but the concept plan shall show the location of any separate water meters for landscaped areas and shall provide a discussion of the proposed method and type of irrigation and how the goal of water conservation will be attained.
3. A water efficient landscape worksheet that complies with Section
23.26.110 that calculates the MAWA and the ETWU for the project.
4. A grading design plan that complies with Section
23.26.120 that describes the grading of the project. If the project applicant has submitted a grading plan with the application for the project, the Director may accept that grading plan in lieu of the grading design plan required by this subsection if the grading plan complies with Section
23.26.120.
(Ord. 2010-05; Ord. 2016-01)
A. The soil management report required by Section
23.26.070 shall be prepared by a California licensed landscape architect, licensed civil engineer, licensed architect or other landscape professional licensed by the state to do this work and shall contain the following information:
1. An
analysis of the soil for the proposed landscaped areas of the project
that includes information about the soil texture, soil infiltration
rate, pH, total soluble salts, sodium, and percent organic matter.
The analysis shall be completed by a properly certified or accredited
laboratory using accepted industry protocol.
2. Recommendations
and information about soil amendments and mulch that may be necessary
to foster plant growth and plant survival in the landscaped area using
efficient irrigation techniques. The report shall identify the type
and amount of mulch for each area where mulch is applied.
B. When a project involves mass grading of a site the applicant shall submit the soil management report that complies with subsection
A of this section with the certificate of completion required by Section
23.26.230.
C. In
projects with multiple landscape installations (i.e., production home
developments), a soil sampling rate of one in seven lots or approximately
15% will satisfy this requirement. Large landscape projects shall
sample at a rate equivalent to one in seven lots.
D. 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.
E. The project applicant, or his/her designee, shall submit documentation verifying implementation of soil analysis report recommendations with the certificate of completion required by Section
23.26.230.
(Ord. 2010-05; Ord. 2016-01)
A. 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.
B. 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 dedicated water service
meter or private submeter, shall be installed for all nonresidential
irrigated landscapes of 1,000 square feet but not more than 5,000
square feet (the level at which
Water Code Section 535 applies) and
residential irrigated landscapes of 5,000 square feet or greater.
A landscape water meter may be either:
i. A customer service meter dedicated to landscape use provided by the
local water purveyor; or
ii. 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.
i. 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.
ii. 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. Additional manual shutoff
valves shall be installed between each zone of the irrigation system
and the water supply.
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 nonresidential landscapes and
residential landscapes of 5,000 square feet 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
23.26.110 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'/lnternational 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.
o. 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.
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 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:
i. the landscape area is adjacent to permeable surfacing and no runoff
occurs; or
ii. the adjacent non-permeable surfaces are designed and constructed
to drain entirely to landscaping; or
iii.
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 23.26.100(B)(1)(i).
v. Slopes greater than 25% (one foot of vertical elevation change for
each four feet of horizontal length) 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.
w. All wiring and piping under a paved area that a vehicle may use,
such as a parking area, driveway or roadway, will be installed inside
a PVC conduit.
x. Irrigation piping and irrigation devices that deliver water, such
as sprinkler heads, shall be installed below grade using swing joints
or other riser-protection components if they are within 24 inches
of a vehicle or pedestrian use area. The Director may allow on-grade
piping where landform constraints make below grade piping infeasible.
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:
i. The plant factor calculation is based on the proportions of the respective
plant water uses and their plant factor; or
ii. 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. This table can also assist with the
irrigation audit and programming the controller.
C. The
irrigation design plan, at a minimum, shall:
1. Be
prepared by a licensed landscape architect, certified irrigation designer,
licensed civil engineer, licensed architect or other landscape professional
licensed by the state to do this work.
2. Include the MAWA for the plans, including the calculations used to determine the MAWA. The calculations shall be based on the formula in Section
23.26.130 and the water efficient landscape worksheet.
3. Include the ETWU for the plans, including the calculations used to determine the ETWU. The calculations shall be based on the formula in Section
23.26.140 and the water efficient landscape worksheet.
4. Show
the location of separate water meters for landscape.
5. Show
the location, type and size of all components of the irrigation system
that will provide water to the landscape area, including the controller,
water lines, valves, sprinkler heads, moisture sensing devices, rain
switches, quick couplers, pressure regulators, and backflow prevention
devices.
6. Describe
each automatic irrigation controller the system uses to regulate irrigation
schedule and whether it is a weather based system or moisture detection
system. The plan shall depict the location of electrical service for
the automatic irrigation controller or describe the use of batteries
or solar power that will power valves or a smart controller.
7. Show
the static water pressure at the point of connection to the public
water supply.
8. Show
the flow rate in gallons, the application rate in inches per hour
and the design operating pressure per square inch for each station.
9. Show
recycled water irrigation systems and the areas irrigated with recycled
water.
10. Identify areas irrigated with graywater or rainwater captured on-site.
11. Demonstrate how grading and drainage techniques promote healthy plant
growth and prevent erosion and runoff.
(Ord. 2010-05; Ord. 2016-01)
The water efficient landscape worksheet required by Section
23.26.070 shall be prepared by a California licensed landscape architect, licensed civil engineer, licensed architect, or other landscape professional licensed by the state to do this work and shall contain the following:
A. 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 nonresidential areas, exclusive of special landscape
areas.
1. The
ETAF for a landscaped project is based on the plant factors and irrigation
methods selected.
2. The
MAWA is calculated based on the maximum ETAF allowed (0.55 for residential
areas and 0.45 for nonresidential areas) and expressed as annual gallons
required.
3. The
Estimated Total Water Use is calculated based on the plants used and
irrigation method selected for the landscape design. The ETWU must
be below the MAWA.
B. Water
budget calculations, which shall meet the following requirements:
1. The
plant factor used shall be from WUCOLS, or may be obtained from horticultural
researchers from academic institutions or professional associations
as approved by the California Department of Water Resources. The plant
factor shall be 0.1 for very low water use plants, from 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. A plan that mixes plants
in a hydrozone that require a different amount of water shall use
the plant factor for the highest water using plant in the hydrozone.
2. Temporarily
irrigated areas shall be included in the low water use hydrozone.
Temporarily irrigated as used in this chapter means the period of
time when plantings only receive water until they become established.
3. The
surface area of a water feature, including swimming pools, shall be
included in a high water use hydrozone.
4. The calculations shall use the formula for the MAWA in Section
23.26.130 and for the ETWU in Section
23.26.140.
5. All
special landscaped areas shall be identified by their water use calculated
as shown on the water efficient landscape worksheet. The ETAF for
new and existing special landscaped areas shall not exceed 1.0.
6. Rock
and stone or pervious design features, such as decomposed granite
ground cover that are adjacent to a vegetated area may be included
in the calculation of the MAWA and ETWU provided the features are
integrated into the design of the landscape area and the primary purpose
of the feature is decorative.
(Ord. 2010-05; Ord. 2016-01)
The grading design plan required by Section
23.26.070 shall be prepared by a California licensed civil engineer, licensed landscape architect, licensed architect, or other landscape professional licensed by the state to do this work and shall comply with following requirements:
A. The
grading on the project site shall be designed for the efficient use
of water by minimizing soil erosion, runoff and water waste resulting
from precipitation and irrigation.
B. The
plan shall show the finished configurations and elevations of each
landscaped area including the height of graded slopes, the drainage
pattern, pad elevations, finish grade and any stormwater retention
improvements.
(Ord. 2010-05; Ord. 2016-01)
A. A landscape
project subject to this chapter shall not exceed the maximum applied
water allowance (MAWA). The MAWA for a landscape project shall be
determined by the following calculation:
MAWA (Annual Gallons Allowed) = (ETo)(0.62)[(ETAF x LA) + ((1
- ETAF) x SLA)]
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B. The
abbreviations used in the equation have the following meanings:
1. MAWA
= Maximum applied water allowance in gallons per year.
2. ETo
= Evapotranspiration in inches per year.
3. 0.62
= Conversion factor to gallons per square foot.
4. ETAF
= adjustment factor for plant factors and irrigation efficiency (0.55
for residential areas and 0.45 for nonresidential areas).
5. LA
= Landscaped area includes special landscaped area in square feet.
6. 1-
ETAF = The additional ET adjustment factor for a special landscaped
area.
7. SLA
= Portion of the landscaped area identified as a special landscaped
area in square feet.
(Ord. 2010-05; Ord. 2016-01)
A. An
applicant for a project subject to this chapter shall calculate the
ETWU for each landscaped area and the entire project using the following
equation:
ETWU = (ETo)(0.62)(PF x HA / IE + SLA)
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B. The
abbreviations used in the equation have the following meanings:
1. ETWU
= Estimated total water use in gallons per year.
2. ETo
= Evapotranspiration in inches per year.
3. 0.62
= Conversion factor to gallons per square foot.
4. PF
= Plant factor from WUCOLS or from horticultural researchers from
academic institutions or professional associations as approved by
the California Department of Water Resources.
5. HA
= Hydrozone area in square feet. Each HA shall be classified based
upon the data included in the landscape and irrigation plan as high,
medium or low water use.
6. IE
= Irrigation efficiency of the irrigation method used in the hydrozone.
7. SLA
= Special landscaped area in square feet.
C. The
ETWU for a proposed project shall not exceed the MAWA.
(Ord. 2010-05; Ord. 2016-01)
A person submitting an application for a cemetery shall include
the following:
A. A landscape concept plan including all of the information specified for a landscape design plan in Section
23.26.090 and the proposed method and type of irrigation.
B. A water efficient landscape worksheet that calculates the MAWA for the project that complies with Section
23.26.110.
C. A landscape irrigation and maintenance schedule that complies with Section
23.26.200.
(Ord. 2010-05; Ord. 2016-01)
A. All
model homes that are landscaped shall use signs and written information
to demonstrate the principles of water efficient landscapes described
in this chapter.
B. A person
who obtains a permit to construct a single-family residential development
that contains a model home or homes shall provide a summary of this
chapter to each adult visitor that visits a model home. If an adult
visitor is accompanied by one or more adults during the visit only
one set of written materials is required to be provided.
C. Information
shall be provided about designing, installing, managing, and maintaining
water efficient landscapes.
D. Each
model home shall provide an educational sign in the front yard of
the model home visible and readable from the roadway that the home
faces that states in capital black lettering at least two inches high
on a white sign, "THIS MODEL HOME USES WATER EFFICIENT LANDSCAPING
AND IRRIGATION."
E. 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 land-scape; and demonstrate low water use approaches to
landscaping such as using native plants, graywater systems, and rainwater
catchment systems.
(Ord. 2010-05; Ord. 2016-01)
A. A person
who obtains a permit for a project that is subject to this chapter
shall use recycled water for irrigation when tertiary treated recycled
water is available from the water purveyor who supplies water to the
property for which the City issues a permit.
B. A person
using recycled water shall install a dual distribution system for
water received from a public water purveyor. Pipes carrying recycled
water shall be purple.
C. A person
who uses recycled water under this section shall be entitled to an
ETAF of 1.0 for portions of the landscaped area utilizing recycled
water.
D. This
section does not excuse a person using recycled water from complying
with all state and local laws and regulations related to recycled
water use.
(Ord. 2010-05; Ord. 2016-01)
A. A property
owner using water on property subject to a landscape approval shall
prepare a maintenance schedule for the landscaping and irrigation
system on the project. The schedule shall be submitted with the certificate
of completion and shall provide for:
1. Routine
inspection to guard against runoff and erosion and to detect plant
or irrigation system failure;
2. Landscape
irrigation auditing.
3. Replacement
of dead, dying and diseased vegetation;
4. Eradication
of invasive species;
5. Adjustment
and repair of the irrigation system and its components;
6. Topdressing
with compost;
8. Soil
amendment when necessary to support and maintain healthy plant growth;
9. Fertilizing,
pruning and weeding and maintaining all landscaped areas;
10. Aerating and dethatching turf areas;
11. Removing obstructions to emissions devices;
12. Maintenance to avoid obstruction of motorists' views; and
13. Identify who will be responsible for maintenance.
B. After
approval of a landscape plan, the owner is required to:
1. Maintain
and operate the landscaping and irrigation system on the property
consistent with the MAWA.
2. Maintain
the irrigation system to meet or exceed an irrigation efficiency necessary
to meet MAWA.
3. Replace
broken and malfunctioning irrigation system components with components
of the same materials and specifications, their equivalent or better
as soon as possible upon discovery of the break or malfunction. The
system, or the portion of the system with the break or malfunction
when that portion can be isolated behind a closed valve, shall not
be used until the break or malfunction is repaired.
4. Ensure
that when vegetation is replaced, replacement plantings are representative
of the hydrozone in which the plants were removed and are typical
of the water use requirements of the plants removed, provided that
the replaced vegetation does not result in mixing high water use with
low water use plants in the same hydrozone.
5. A
project applicant is encouraged to implement established landscape
industry sustainable Best Practices for all landscape maintenance
activities.
(Ord. 2010-05; Ord. 2016-01)
A. For
the efficient use of water, all irrigation schedules shall be developed,
managed and evaluated to utilize the minimum amount of water required
to maintain plant health.
B. A property
owner using water on property subject to a landscaping approval shall
submit an irrigation schedule for the project.
C. For
implementation of the irrigation schedule, particular attention must
be paid to irrigation run times, emission device, flow rate and current
reference evapotranspiration so that applied water meets the estimated
total water use (ETWU). Total annual applied water shall be less than
or equal to the maximum applied water allowance (MAWA). Actual irrigation
schedules shall be regulated by automatic irrigation controllers using
current reference evapotranspiration data (e.g., CIMIS) or soil moisture
sensor data.
D. The
irrigation schedule shall be prepared by a California licensed landscape
architect, certified irrigation designer, licensed civil engineer,
licensed architect, or other landscape professional appropriately
licensed by the state and shall provide the following information:
1. A
description of the automatic irrigation system that will be used for
the project.
2. The
ETo date relied on to develop the irrigation schedule, including the
source of the data.
3. The
time period when overhead irrigation will be scheduled and confirm
that no overhead irrigation shall be used between 8:00 a.m. and 6:00
p.m. or within any more restrictive water use time frame established
by the local water purveyor. Operation of the system outside the normal
watering times is allowed for auditing and maintenance purposes.
4. The
parameters used for setting the irrigation system controller for watering
times for:
a. The plant establishment period.
c. Temporarily irrigated areas.
d. Different seasons during the year.
5. The
consideration used for each station for the following factors:
a. The days between irrigation.
b. Station run time in minutes for each irrigation event, designed to
avoid runoff.
c. Number of cycle starts required for each irrigation event, designed
to avoid runoff.
d. Amount of water to be applied on a monthly basis.
e. Application rate setting.
k. Irrigation uniformity or efficiency setting.
(Ord. 2010-05; Ord. 2016-01)
Prior to receiving final approval for completion of the project,
each applicant shall submit a signed certificate of completion and
final documentation for the project under penalty of perjury within
10 days after installation.
A. The
certificate of completion shall:
1. Be
submitted on a form provided by the City;
2. Include
a statement verifying that the landscaping and irrigation were installed
as allowed in the approved landscape and irrigation plan, all approved
soil amendments were implemented, the installed irrigation system
is functioning as designed and approved, the irrigation control system
was properly programmed in accordance with the irrigation schedule,
and the person operating the system has received all required maintenance
and irrigation plans; and
3. Be
signed by the professional of record for the landscape design.
B. The
final documentation submittal shall include:
1. An irrigation schedule that complies with Section
23.26.210, that describes the irrigation times and water usage for the project.
2. A landscaping and irrigation system maintenance schedule that complies with Section
23.26.200.
3. A soil management report that complies with Section
23.26.080, if the applicant did not submit the report with the landscape documentation package.
4. For all projects with 2,500 square feet or greater landscaped area, an irrigation audit report that complies with Section
23.26.220. Projects consisting of one single-family residence with a landscaped area of less than 5,000 square feet are not required to submit an irrigation audit.
5. Where
there have been significant changes to the landscape plan during the
installation of landscaping or irrigation devices or irrigation system
components, the professional of record for the landscape design shall
submit final "as built" plans that show the changes.
(Ord. 2010-05; Ord. 2016-01)
A. No
person shall use water for irrigation such that due to runoff, low
head drainage, overspray or other similar condition, water flows onto
adjacent property, non-irrigated areas, structures, walkways, roadways
or other paved areas. Irrigation water use shall comply with any water
waste prevention regulations, policies or guidelines established by
the local water purveyor.
B. No
person whose landscape is subject to a landscape approval pursuant
to this chapter shall apply water to the landscape in excess of the
MAWA.
(Ord. 2010-05; Ord. 2016-01)
A. The
City Manager shall administer and enforce the provisions of this chapter.
Any city authorized personnel or enforcement officer may exercise
any enforcement powers as set forth in the code.
B. The
City may delegate to or enter into a contract with a local agency
or other person to implement and administer any of the provisions
of this chapter on behalf of the City.
(Ord. 2010-05; Ord. 2016-01)
An applicant for a project subject to this chapter shall include
with the application, all fees established by the City to cover the
City's cost to review an application, any required landscape documentation
package and any other documents the City reviews pursuant to the requirements
of this chapter.
(Ord. 2010-05; Ord. 2016-01)