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WATER EFFICIENT LANDSCAPE WORKSHEET
<br />
<br />ETAF CALCULATIONS
<br />REGULAR LANDSCAPE AREA
<br />TOTAL ETAF x AREA
<br />TOTAL AREA
<br />AVERAGE ETAF
<br />ALL LANDSCAPE AREA
<br />TOTAL ETAF x AREA
<br />TOTAL AREA
<br />SITEWIDE ETAF
<br />HYDROZONE #/ PLANTING DESCRIPTION
<br />E.G.
<br />1.) FRONT LAWN
<br />2.) LOW WATER USE PLANTINGS
<br />3.) MEDIUM WATER USE PLANTINGS
<br />a IRRIGATION METHOD
<br />OVERHEAD SPRAY
<br />OR DRIP
<br />b IRRIGATION EFFICIENCY
<br />0.75 FOR SPRAY HEAD
<br />0.81 FOR DRIP
<br />c ETWU (ANNUAL GALLONS REQUIRED) =
<br />ETo x 0.62 x ETAF x AREA
<br />**WHERE 0.62 IS A CONVERSION
<br />d
<br />FACTOR THAT CONVERTS ACRE-
<br />INCHES PER ACRE PER YEAR TO
<br />GALLONS PER SQUARE FOOT PER
<br />YEARS.**
<br />MAWA (ANNUAL GALLONS ALLOWED) = (ETo) (0.62) [(ETAF X LA) + ((1-ETAF) x SLA)]
<br />**WHERE 0.62 IS A CONVERSION FACTOR THAT CONVERTS ACRE-
<br />e
<br />INCHES PER ACRE PER YEAR TO GALLONS PER SQUARE FOOT PER
<br />YEAR, LA IS THE TOTAL LANDSCAPE AREA IN SQUARE FEET,
<br />AND ETAF IS .55 FOR RESIDENTIAL AREAS AND 0.45 FOR NON-
<br />RESIDENTIAL AREAS.**
<br />**AVERAGE ETAF FOR REGULAR LANDSCAPE AREAS MUST
<br />BE 0.55 OR BELOW FOR RESIDENTIAL AREAS, AND 0.45 OR
<br />BELOW FOR NON-RESIDENTIAL AREAS.
<br />(B)
<br />(A)
<br />(B/A)
<br />(B+D)
<br />(A+C)
<br />(B+D) / (A+C)
<br />REGULAR LANDSCAPE AREA
<br />TOTALS 2,898(A)(B)
<br />0.81
<br />FACTOR (PF)
<br />PLANT IRRIGATION
<br />METHOD
<br />ETAF
<br />(PF / IE)
<br />LANDSCAPE
<br />AREA (SQ-FT)ETAF x AREA/ PLANTING DESCRIPTION
<br />HYDROZONE #b
<br />EFFICIENCY
<br />(IE)
<br />IRRIGATION
<br />c
<br />TOTAL WATER
<br />USED
<br />ESTIMATED
<br />d
<br />(ETWU)
<br />REGULAR LANDSCAPE AREA
<br />a
<br />SPECIAL LANDSCAPE AREA
<br />TOTALS
<br />ETWU TOTAL
<br />MAXIMUM ALLOWED WATER ALLOWANCE (MAWA)e
<br />0(C)(D)
<br />-------------
<br />-------------
<br />1.0
<br />1.0
<br />1.0
<br />-----
<br />-----
<br />-----
<br />-----
<br />-----
<br />-----
<br />123,182
<br />7
<br />4
<br />37,726
<br />201
<br />1150.5
<br />----------------------------
<br />CITY OF PLESANTON MAXIMUM APPLIED WATER ALLOWENCE
<br />THE ETo REFERENCE FOR CITY OF PLESANTON IS (INCHES PER YEAR)46.2
<br />REFERENCE EVAPOTRANSPIRATION (ETo) 46.2
<br />----------
<br />"I AGREE TO COMPLY WITH THE REQUIREMENTS OF THE WATER
<br />EFFICIENT LANDSCAPE ORDINANCE AND SUBMIT A COMPLETE
<br />LANDSCAPE DOCUMENTATION PACKAGE"
<br />NAME:
<br />REGISTERED LANDSCAPE ARCHITECT #
<br />DATE
<br />02-11-2026
<br />0.2 1 29
<br />83,040
<br />DRIP 0.81
<br />0.81DRIP
<br />0.5
<br />0.2 0.25DRIP0.81
<br />44 1,260
<br />478 13,692
<br />269 7,705
<br />0.81DRIP0.5
<br />0.81DRIP0.2 0.25
<br />345 9,882
<br />0.37
<br />7,819
<br />2,898
<br />0.81DRIP
<br />268
<br />6
<br />7,677
<br />1720.62
<br />0.810.2
<br />0.2
<br />0.2 0.25DRIP0.81
<br />0.2
<br />0.62
<br />232 6,645DRIP0.81
<br />10 / LOW WATER USE PLANTINGS (GROUNDCOVER)
<br />1 / MODERATE WATER USE PLANTINGS (TREE)
<br />9 / LOW WATER USE PLANTINGS (GROUNDCOVER)
<br />3 / MODERATE WATER USE PLANTINGS (TREE)
<br />2 / LOW WATER USE PLANTINGS (SHRUB & GROUNDCOVER)
<br />4 / MODERATE WATER USE PLANTINGS (TREE)
<br />5 / LOW WATER USE PLANTINGS (SHRUB & GROUNDCOVER)
<br />7 / LOW WATER USE PLANTINGS (TREE)
<br />6 / LOW WATER USE PLANTINGS (SHRUB & GROUNDCOVER)
<br />8 / LOW WATER USE PLANTINGS (SHRUB & GROUNDCOVER)
<br />DRIP
<br />DRIP 0.62
<br />0.25
<br />0.25
<br />0.25
<br />0.25
<br />1,245 35,662N/A 1.011 / HIGH WATER USE (POOL & SPA)N/A N/A
<br />7,819
<br />1,381
<br />9
<br />1,911
<br />6
<br />1,071
<br />12
<br />1,075
<br />3
<br />929
<br />177
<br />1,245
<br />0.37
<br />7,819
<br />2,898
<br />MAINTENANCE TASK
<br />CONTROLLER CABINET - OPEN CABINET AND CLEAN OUT DEBRIS
<br />AND REPLACE BATTERY AS NECESSARY. CHECK WIRING AND
<br />REPAIR AS NEEDED AND CHECK CLOCK AND RESET IF NECESSARY.
<br />IRRIGATION SCHEDULE - ADJUST SCHEDULE FOR SEASONAL
<br />VARIATIONS AND OTHER CONDITIONS WHICH MAY AFFECT THE
<br />AMOUNT OF WATER NEEDED TO MAINTAIN PLAN HEALTH ADJUST
<br />AS NECESSARY.
<br />POC - VISUALLY INSPECT COMPONENTS FOR LEAKS, PRESURE
<br />SETTINGS, SETTLEMENT OR OTHER DAMAGE AFFECTING THE
<br />OPERATION OF A COMPONENT REPAIR AS NEEDED.
<br />REMOTE CONTROL VALVES, ISOLATION VALVES AND QUICK
<br />COUPLER VALVES VISUALLY INSPECT FOR LEAKS, SETTLEMENT,
<br />WIRE CONNECTIONS AND PRESSURE SETTINGS. REPAIR OR ADJUST
<br />AS NEEDED.
<br />MAINLINE & LATERALS VISUALLY INSPECT FOR LEAKS OR
<br />SETTLEMENT OF TRENCH.
<br />SPRINKLERS VISUALLY CHECK FOR ANY BROKEN MISSIGNED OR
<br />CLOGGED HEADS, HEADS WITH INCORRECT ARC, INADEQUATE
<br />COVERAGE OR OVERSPRAY AND LOW HEAD DRAINAGE REPAIR
<br />AS NEEDED.
<br />FILTERS AND STRAINERS VISUALLY CHECK FOR LEAKS, BROKEN
<br />FITTING CLEAN AND FLUSH SCREENS.
<br />FREQUENT
<br />QUARTERLY
<br />MONTHLY
<br />QUARTERLY
<br />QUARTERLY
<br />QUARTERLY
<br />WEEKLY
<br />MONTHLY
<br />WATER AUDIT NOTE :
<br />THE CONTRACTOR WILL CONDUCT AN IRRIGATION AUDIT USING A CERTIFIED IRRIGATION AUDITOR,
<br />AFTER THE FINAL FIELD OBSERVATION HAS BEEN COMPLETED AND ALL IRRIGATION COMPONENTS ARE
<br />INSTALLED IN ACCORDANCE WIT THE PLANS AND SPECIFICATIONS AND THE IRRIGATION SYSTEM IS
<br />ACCEPTED BY THE PROJECT ARCHITECT FOR MAINTENANCE.
<br />THE IRRIGATION AUDIT WILL BE CONDUCTED IN ACCORDANCE WITH THE FOLLOWING SCHEDULE:
<br />1.PLACE FLAGS AT EACH HEAD IN THE ZONE.
<br />2.MEASURE SPACING AND MARK MID-POINTS BETWEEN HEADS.
<br />3.PLACE WATER MEASURING RECEPTACLES.
<br />4.TAKE READINGS OF WATER LEVEL IN RECEPTACLES AND RECORD RESULTS.
<br />5.MEASURE HEAD PRESSURE IN EACH ZONE AND RECORD RESULTS.
<br />6.AFTER COMPLETING ZONE ADVANCE TO NEXT ZONE AND REPEAT PROCEDURE.
<br />7.SUBMIT THE RESULTS OF THE AUDIT TO THE PROJECT ARCHITECT.
<br />THE IRRIGATION MAINTENANCE SCHEDULE TASKS LISTED BELOW ARE INTENDED AS MINIMUM
<br />STANDARDS AND MORE FREQUENT ATTENTION MAY BE REQUIRED DEPENDING ON THE PARTICULAR
<br />SITE CONDITIONS.
<br />MAINTENANCE SCHEDULES :
<br />A REGULAR MAINTENANCE SCHEDULE SATISFYING THE FOLLOWING CONDITIONS
<br />SHALL BE SUBMITTED AS PART OF THE LANDSCAPE DOCUMENTATION PACKAGE.
<br />LANDSCAPE SHALL BE MAINTAINED TO ENSURE WATER EFFICIENCY. A REGULAR
<br />MAINTENANCE SCHEDULE SHALL INCLUDE, BUT NOT BE LIMITED TO, CHECKING,
<br />ADJUSTING, AND REPAIRING IRRIGATION EQUIPMENT, RESETTING THE AUTOMATIC
<br />CONTROLLER, AERATING AND DETHATCHING TURF AREAS, REPLENISHING MULCH,
<br />FERTILIZING, PRUNING, AND WEEDING IN ALL LANDSCAPE AREAS.
<br />WHENEVER POSSIBLE, REPAIR OF IRRIGATION EQUIPMENT SHALL BE DONE WITH THE
<br />ORIGINALLY SPECIFIED MATERIALS OR THEIR EQUIVALENTS.
<br />A LANDSCAPE IRRIGATION AUDIT SCHEDULE AS REQUIRED IN CHAPTER 20.09 OF TITLE
<br />20 MAY BE RECOMMENDED. THE MAXIMUM PERIOD BETWEEN AUDITS SHALL BE FIVE
<br />YEARS.
<br />IRRIGATION AUDIT SCHEDULES :
<br />NOTE:
<br />"THE FLOW RATES FOR ALL PLUMBING FIXTURE SHALL COMPLY WITH MAXIMUM FLOW RATES
<br />SPECIFIED IN SECTION 4.303.1"
<br />"WHEN A SHOWER IS SERVED BY MORE THAN ONE SHOWERHEAD, THE COMBINED FLOW RATE OF
<br />ALL THE SHOWER HEADS AND/OR OTHER OUTLETS CONTROLLED BY A SINGLE VALVE SHALL NOT
<br />EXCEED 2.0 GALLONS PER MINUTE AT 80 PSI, OR THE SHOWER SHALL BE DESIGNED TO ONLY
<br />ALLOW ONE SHOWERHEAD TO BE IN OPERATION AT A TIME." (4.303.1.3.2)
<br />"FOR PROJECTS THAT INCLUDE LANDSCAPE WORK, THE LANDSCAPE CERTIFICATION, FORM GRN 12
<br />SHALL BE COMPLETED PRIOR TO FINAL INSPECTION APPROVAL." (STATE ASSEMBLY BILL NO. 1881)
<br />FOR SITES WITH OVER 500 SF. OF LANDSCAPE AREA, WASTE PIPING SHALL BE ARRANGED TO
<br />PERMIT DISCHARGE FROM THE CLOTHES WASHER, BATHTUB, SHOWERS, AND
<br />BATHROOM/RESTROOMS WASH BASINS TO BE USED FOR A FUTURE GRAY WATER IRRIGATION
<br />SYSTEM. (4.305.1)
<br />"RECIRCULATING WATER SYSTEMS SHALL BE USED FOR WATER FEATURES"
<br />"FOR SOILS LESS THAN 6% ORGANIC MATTER IN THE TOP 6" OF SOIL, COMPOST AT A RATE OF A
<br />MINIMUM OF FOUR CUBIC YARDS PER 1,000 SQUARE FEET OF PERMEABLE AREA SHALL BE
<br />INCORPORATED TO A DEPTH OF SIX INCHES INTO THE SOIL."
<br />"AT THE TIME OF FINAL INSPECTION, THE PERMIT APPLICANT MUST PROVIDE THE OWNER OF THE
<br />PROPERTY WITH CERTIFICATE OF COMPLETION, CERTIFICATE OF INSTALLATION, IRRIGATION
<br />SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE."
<br />"UNLESS CONTRADICTED BY A SOIL TEST, COMPOST AT A RATE OF A MINIMUM OF FOUR CUBIC
<br />YARDS PER 1,000 SQUARE FEET OF PERMEABLE AREA SHALL BE INCORPORATED TO A DEPTH OF
<br />SIX INCHES INTO THE SOIL."
<br />"FOR SOILS LESS THAN 6% ORGANIC MATTER IN THE TOP 6" OF SOIL, COMPOST AT A RATE OF A
<br />MINIMUM OF FOUR CUBIC YARDS PER 1,000 SQUARE FEET OF PERMEABLE AREA SHALL BE
<br />INCORPORATED TO A DEPTH OF SIX INCHES INTO THE SOIL."
<br />"A DIAGRAM OF THE IRRIGATION PLAN SHOWING HYDROZONES SHALL BE KEPT WITH THE
<br />IRRIGATION CONTROLLER FOR SUBSEQUENT MANAGEMENT PURPOSES."
<br />"A CERTIFICATE OF COMPLETION SHALL BE FILLED OUT AND CERTIFIED BY EITHER THE SIGNER OF
<br />THE LANDSCAPE PLANS, OR THE LICENSED LANDSCAPE CONTRACTOR FOR THE PROJECT."
<br />"AN IRRIGATION AUDIT REPORT SHALL BE COMPLETED AT THE TIME OF FINAL INSPECTION."
<br />"CHECK VALVES OR ANTI-DRAIN VALVES ARE REQUIRED ON ALL SPRINKLER HEADS WHERE LOW
<br />POINT DRAINAGE COULD OCCUR.”
<br />IRRIGATION AUDIT SCHEDULES :
<br />LANDSCAPE IRRIGATION AUDIT SCHEDULES. A SCHEDULE OF LANDSCAPE IRRIGATION
<br />AUDITS OF AT LEAST EVERY FIVE YEARS MUST BE ESTABLISHED, FOR ALL BUT
<br />SINGLE-FAMILY RESIDENCES, AND OTHER PROJECTS WITH A LANDSCAPE AREA LESS
<br />THAN 1 ACRE (0.405 HA). AS REQUIRED IN CHAPTER 20.09 OF TITLE 20 (UTILITIES CODES),
<br />AN AUDIT SATISFYING THE FOLLOWING CONDITIONS SHALL BE SUBMITTED TO THE
<br />COUNTY AS PART OF THE LANDSCAPE DOCUMENTATION PACKAGE.
<br />AT A MINIMUM, AUDITS SHALL BE IN ACCORDANCE WITH THE LATEST STATE OF
<br />CALIFORNIA LANDSCAPE WATER MANAGEMENT PROGRAM AS DESCRIBED IN THE
<br />LANDSCAPE IRRIGATION AUDITOR HANDBOOK, PREPARED FOR THE CALIFORNIA
<br />DEPARTMENT OF WATER RESOURCES, WATER CONSERVATION OFFICE, THE ENTIRE
<br />DOCUMENT, WHICH IS HEREBY INCORPORATED BY REFERENCE.
<br />THE SCHEDULE SHALL PROVIDE FOR LANDSCAPE IRRIGATION AUDITS TO BE
<br />CONDUCTED BY A QUALIFIED INDIVIDUAL AS DETERMINED BY THE DIRECTOR AT LEAST
<br />ONCE EVERY FIVE YEARS IN ACCORDANCE WITH THE REQUIREMENTS OF TITLE 20,
<br />DIVISION 1 OF THE LOS ANGELES COUNTY CODE.
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<br />Page 303 of 373
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