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Water Efficient Landscape Ordinance (WELO) Notes: Hydrozone Table and ETWU
<br /> I. These plans have been prepared to be in compliance with the State-mandated Water Grading
<br /> Desi n
<br /> Efficient Landscape Ordinance (WELO), which went into effect on December I, 2015. g Reference ETo for Stockton 49.1
<br /> The following notes reference the requirements of the ordinance and the responsibility I. See the grading and drainage plan as prepared by the civil engineer. The landscape
<br /> of the contractor to install the landscape per the plans, details, and notes; provide contractor shall maintain the drainage patterns as specified in the grading plans.
<br /> the required documentation to the local agency; and provide follow-up correction as 2. The site has been graded so that irrigation and normal run-off remains within the
<br /> required to meet the water efficiency requirements. property lines, unless otherwise noted on the grading plans. ESTIMATED TOTAL WATER USE (ETWU)
<br /> 3. The landscape areas may include bioswoles or filtration swales. The landscape
<br /> 0 2. The landscape contractor shall coordinate with the local jurisdiction to determine who contractor shall install these per the requirements of the civil engineer's plans and Ornamental Landscape
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<br /> will review and receive the WELD documentation that is required to be provided by details with the planting per these plans. Any modifications must be approved in Hydro Water Use Hydrozone Area Percentage of ETAF x Area Irrigation
<br /> o Zthe contractor. writing by the civil engineer and the landscape architect.
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<br /> o zone No. Zone(s) Hydrozone Description Classification Plant Factor Irrigation Method (Square Feet) Landscape ETAF (Square Feet) Efficient ETWU
<br /> Irrigation Schedule
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<br /> Landscape Documentation Package 1 1, 3, 4, 5 Shrubs Low 0.3 Drip Emiiters 4,663.00 95.4% 0.37 1,727.04 0.81 52,574.46
<br /> 1. See the irrigation base schedule as included with the irrigation plans and notes. This
<br /> 0o 1. Project information and signatures - The signature of the landscape architect on is auide - The landscape contractor may need to make modifications based on °
<br /> it o these landscape plans is applicable to the statement - "I agree to the best of my actual site and landscape conditions. Revised schedule shall be submitted with the 2 2 Trees Low 0.3 Drip Emiiters 225.00 4.6/ 0.37 83.33 0.81 2536.83
<br /> a ability to comply with the requirements of the water efficient landscape ordinance and Gertificate of Gompletion.
<br /> a submit a complete Landscape Document Package". 2. Overhead irri ation shall be scheduled between B:OOPM and IO:OOAM unless
<br /> FLL 2. Water Efficient Landscape Worksheet - See MAWA and ETWU, as well as hydrozone otherwise noted on the plans or more strict watering hours are required by the local Totals 4,888.00 100% 1,810.37 55,111.29
<br /> information table on this sheet.
<br /> - urisdiction.
<br /> CD 3. Soil management report - See Notes requirements as described below. 3. The irrigation run times, length of run, and frequency of run times may need to be Note: There is no SLA on this project
<br /> F o 4. Landscape Design Plan - See Planting Plans and Details contained within this set of adjusted based on infiltration rate of the soil, slope, etc. to avoid run-off. f
<br /> 0 documents. 4. The specific parameters of the site conditions are to be inp ut into the `/'smart' V M1 architecture
<br /> w oller. Design - Planning Interiors
<br /> 4 w documents. Estimated Total Water Use (ETWU) Summary
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<br /> 0 6. Grading Design Plan - To be provided by the civil engineer - See civil engineer's Irri ation AUdit 637 5th Avenue San Rafael, CA 94901
<br /> =m plans. g Total Ornamental Landscape Area 4,888.00 square feet 415451-2500 415451-2595 fax
<br /> a I. All irrigation audits shall be conducted by a certified landscape irrigation auditor or P q www.vmarch.com
<br /> >0 Soil Mana ement Report local agency landscape irrigation auditor. 810.37 square feet
<br /> 9 p ETAF x Area 1
<br /> LU a 2. The irrigation system shall be audited after it has been installed and 'fine-tuned'. The
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<br /> 1.
<br /> I. After mass grading the contractor shall provide for a soil analysis that shall comply audit report is to be included with the Certificate of Completion and shall include, but VMI JOB NUMBER
<br /> _= with the requirements provided below. The analysis report is to be forwarded to the not be limited to: Irrigation Efficiency 0.81 efficient 20049
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<br /> LL landscape architect, owner, and governing jurisdiction. - System test for distribution uniformity. Estimated Total Water Use (ETWU) 55,111.29 gallons
<br /> W 0 2. Soil samples shall be collected in accordance with laboratory protocol Including - Recommendations for any adjustments that may be needed.
<br /> �= adequate sampling depth. - Preparation of an irrigation schedule. 21-2390
<br /> Z 0 3. At least one sample shall be provided for each 20,000 sf of landscape unless 3. The contractor shall make the adjustments as recommended in the irrigation audit.
<br /> CI otherwise noted by the landscape architect. Samples shall be taken from different Maximum Applied Water Allowance (MAWA) 66,960.22 gallons ���
<br /> Z G areas of the site as directed by the landscape architect. For multiple landscape Gertificate of Gompletion
<br /> P:S installations (i.e. production home developments) a soil sampling rate of I in 7 lots or 1. The contractor shall provide to the governing jurisdiction and the landscape architect MAWA= (ETo)(0.62)(0.45*LA)
<br /> o w approximately 15%. Large landscape projects shall sample at a rate equivalent to I in a Gertificate of Gompletion that at a minimum includes the following:
<br /> 7
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<br /> � 7 lots. - Date of completion and date of the Gertificate. MAWA= 66,960.22
<br /> v 4. The Soil Analysis shall include the following: - Project Name and Address (or specific location). 10-31-22
<br /> o w - Soil texture - Project Applicant name, telephone number, and mailing address. Renewal Date
<br /> U) - Infiltration Rate (determined by lab test or soil texture infiltration rate table). - Property owner name, tele hone number, and mailing address. 2-3-22
<br /> LL w - pH 2. The la ds�ape contractor shall sign a statement that says the landscape and ETWU is less than MAWA, therefore the system meets the requirements of the Water Efficient Landscape Ordinance (WELD) �'� Date �P
<br /> Ofa - Total soluble salts irrigation has been Installed per the approved Landscape Document Package (plans, �� CALU L\F
<br /> - Sodium p Irrigation Valve Table
<br /> }a details, notes, calculations as contained within this Ian set.
<br /> o - Percent organic mater 3. If there have been modifications to the layout and/or design of the landscape and
<br /> 0 J - Recommendations for soil amendments, fertilizer, etc. for the type of landscape
<br /> - irrigation, the contractor shall include with the Certificate of Completion a set of February 3, 2022
<br /> planting proposed.
<br /> M w as-built plans or record drawings that reflect the modifications. The modified
<br /> CQ 5. Soil Analysis shall be conducted by an approved soil testing lab. The following are Hydro-
<br /> on- rri Preci
<br /> landscape and irrigation must remain in compliance with the WELO. 9 p
<br /> U= acceptable (but not required) labs: 4. The Certificate of Completion shall include the initial irrigation audit that shows the Voive # zone Size Planting Type Irrigation Type Optic. Rote GPM Pressure
<br /> 0 Uj Sunlond Anal tical, 1141cl Sunrise Gold Circle, Suite 10, Rancho Cordova, CA c15742, g p g y q I I I Shrubs DripEmitters 81 NA 4.03 20
<br /> 0 0 y Irrigation is in com liance with the irrigation efficient re uirements of WELO (see audit
<br /> o� (616)852-8557, www.sunland-analytical.com. information within this set of notes). The soil analysis report and recommendations and
<br /> Soil and Plant Lab, 1101 S. Winchester Blvd., Suite G-173, San Jose, GA 65128, 2 2 I" Trees Or! Emitters 81 NA 2.36 20
<br /> LU g verification that the recommendations have been implemented shall also be submitted, p
<br /> LU (408)727-0330, www.sollandplantlaboratory.com. if not included with the Landscape Documentation Package. 3 I I" ShbDi Emitters 81 NA 4.Ici 20
<br /> m w Soil and Plant Lab, 4741 East Hunter Ave., Suite A, Anaheim, GA c128078777rus r
<br /> , (714)282-
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<br /> _> www.soilandplantlaboratory.com. 4 1 I" Shrubs Drip Emitters 81 NA 3.60 20
<br /> U)m 6. The recommendations of the soil analysis are to be implemented in the landscape soil
<br /> g3: preparation. The contractor shall provide documentation, prior to planting, verifying 5 1 I" Shrubs Drip Emitters .81 NA 4.0c'! 20
<br /> a that recommendations have been implemented to the landscape architect and the Maintenance Schedule
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<br /> 0 governing jurisdiction.
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<br /> mm Landscape Design (Planting) A regular maintenance schedule shall be set up for this project to provide for the health
<br /> Z 0 I. The landscape has been designed and plants selected to be compliant with the and growth of the plant material as well as the efficiency of the irrigation system. The LANDSCAPE
<br /> afa requirements of the WELO. The contractor shall not make changes without written following is a minimum list of items that are to be addressed and maintained on a regular Establishment Period Irrl�atlon Schedule
<br /> C6 o approval by the landscape architect. If the contractor deviates from the plan and it basis. This schedule is based on providing Irrigation to keep the soil extra moist as needed to promote root growth for plant ARCHITECTURE
<br /> j5 cn z is not acceptable to the landscape architect, the contractor will be required to make establishment. Specific microclimate conditions and observed water needs, soil, slope, sun exposure, etc. will require PLANNING
<br /> w M changes at his/her expense to bring the landscape into compliance. I. The irrigation system shall be maintained on a regular basis to ensure efficiency. All adjustment of this schedule in the field to meet the unique needs of each circuit. Controller is to be connected to
<br /> o LU 2. Plants have been placed in 'hydrozones' of similar water use requirements. The extent heads, valves, and other equipment shall be checked and adjusted to avoid weather sensor and will adjust schedule (run times) automatically after the optimal schedule has been set.
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<br /> = overs ra All leaks are to be repaired as soon as ossible. Re laced and
<br /> of the hydrozones are delineated by the groups of irrigation circuits as listed in the p y' p p p Hydrozone Circuits Plant Material Winter rin /Fall Summer www.kla-ca.com
<br /> Hydrozone Table, included with these plans. repaired irrigation equipment is to be done with originally specified equipment or Nov.,Dec.,Jan.,Feb.,March A f,11,1-1,7D,Oct. June,July,Aug.,Sept.
<br /> Z equipment with matching precipitation rates.
<br /> 3. Turf is not allowed on slopes greater than 25% (4:1). 151 N.Norlin St.,Sonora,CA 95370
<br /> w a 4. Mulch is required in al planting area except for turf, creeping or rooting 1 I, 3, 4, 5 Shrubs-Drip Low Water O cycles/month of 15 cycles/month of 30 cycles/month of (209)532-2856
<br /> ne groundcovers, direct seeding applications, cobble areas, or other areas specifically 2. Irrigation emission devices are to be checked and repaired as needed to ensure Use O minutes each 30 minutes each 25 minutes each
<br /> Z- noted on the plans. The mulch shall be a minimum of 3", but the depth as listed in the minimal overspray, no leaks, and efficient operation. Drip emission devices (emitters)
<br /> 0 a planting legend shall take priority. may need to be adjusted as the planting matures and the water needs change. 2 2 Trees-Drip Emitters O cycles/month of 4 cycles/month of 8 cycles/month of
<br /> 5. Stabilizing mulches shall be used on all slopes exceeding 4:1. See plan or coordinate Emitters are to be reviewed annually (at a minimum) with replacements provided for Low Water Use O minutes each 10 minutes each l0 minutes each RECORD DATES
<br /> a-Wwith landscape architect.
<br /> plants that may be getting to much or too little water.
<br /> DD SUBMITTAL
<br /> E 0 6. Soil amendments shall be incorporated per the soil report. Compost must be applied 3 The, tllis to be, d adjusted needed tthere, is w w at a rate of 4 yards per 1,000 square feet of permeable area. Compacted soils controller e checked anjusas neeo ensure eres mma
<br /> BLDG.SUBMITTAL
<br /> w I- must be transformed to o friable condition. run-off while meeting the water requirements of the plants.
<br /> BID SET
<br /> 7. The signature on the landscape plans is applicable to the statement - "I have 4. Shrubs and trees are to be pruned to maintain form and remove dead or dying CONTRACT SET
<br /> a complied with the criteria of the ordinance and applied them for the efficient use of p y g Establ fished Landsca e Irrigation Schedu I e
<br /> IR Z o water in the landscape design plan." branches. Trees are to be pruned for form and safety and suckering is to be p
<br /> 0 U) removed on a regular basis. This schedule is based on typical seasonal weather conditions. Specific microclimate conditions and observed water REVISIONS
<br /> 77 C:) 0, needs, soil, slope, sun exposure, etc. will require adjustment of this schedule in the field to meet the unique needs of
<br /> Irri ation Desi n
<br /> 9 9 5. A regular program of weed and pest control is to be established and followed. each circuit. Controller is to be connected to weather sensor and will adjust schedule (run times) automatically after Q
<br /> N g a I. The Irrigation water service shall be on a separate meter or submeter than the Pesticides and herbicides are to be applied only when needed and by a state the optimal schedule has been set.
<br /> o z o domestic service, this is required for residential landscapes over 5,000 square feet licensed professional. Q_
<br /> N o= p Hydrozone Circuits Plant Material Winter 5�rin /Fall Summer
<br /> N ¢ and non-residential landscapes over 1,000 square feet. Nov.,Dec.,Jan.,Feb.,March A ril,MCy,Oct. June,July,Aug.,Sept.
<br /> cN 0 0 2. The irrigation controller (clock) shall be a 'smart' controller using evapotranspiration 6. Bark mulch is to be reapplied as needed to ensure full coverage to maintain water Q
<br /> 0 U)Z or soil moisture sensor data to automatically adjust run times based on landscape retention in the soil and deter weed growth - see plan for depth of mulch. 1 I, 3, 4, 5 Shrubs-Drip Low Water 0 cycles/month of 10 cycles/month of 15 cycles/month of
<br /> -0 o o area water needs. Use O minutes each 30 minutes each 40 minutes each
<br /> > o 0 3. The irrigation system has been designed for each emission device to operate within
<br /> CU a o the manufacturer's recommended pressure range for optimal performance. If the 2 2 Trees-Drip Emitters 0 cycles/month of 4 cycles/month of 8 cycles/month of
<br /> w a water pressure at the service connection is different than what is shown on the plans Low Water Use O minutes each 7 minutes each 7 minutes each Q_
<br /> Qo o the contractor shall notify the landscape architect prior to installation of the irrigation
<br /> 0 z system. Contractor shall check available water pressure before any irrigation Q_
<br /> _ w installation. Pressure regulation is required to ensure correct and efficient operation.
<br /> Q > 4. Pressure regulators or booster pumps shall be installed if needed to modify available 0
<br /> mpressure for the optimal performance of the irrigation emission devices. All emission
<br /> o o devices must meet the American National Standards Institute Standard. See CLIENT
<br /> wm specifications on the plans and refer to note #3 above.
<br /> oZ 5. A rain sensor shall be installed and tied to the controller - See plan for selection. PRB MANAGEMENT INC
<br /> CF)M w ine i 6. Gate valves) shall be installed directly downstream of the service connection(s).
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<br /> 7. Ana roved backflow reventer shall be installed at the irrigation service. 4709 Mangels Blvd.
<br /> LU connection. See plan. p gFairfield,CA 94534
<br /> m Lu a 8. Check valves shall be installed in all heads at the low points of a circuit where water SITE#:3560
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<br /> o i within the piping may drain out of the head when the system is done operating - See ENTITY#:
<br /> o => plan.
<br /> LL J cl. Flow sensors shall be installed to detect and report high flow conditions for PROJECT
<br /> 0 0= landscape areas greater than 5,000 square feet.
<br /> wit 10. Master Valves shall be installed to prevent water waste in the event of breakage or TACO BELL
<br /> 0 o vandalism to the irrigation system, except where sprinklers can be individually
<br /> CIO controlled. 532 WEST HAMMER LN
<br /> U) 0 11. The irrigation circuits have been designed to correspond to the planting hydrozones. STOCKTON CA. 95210
<br /> cm Z" Changes to the irrigation layout and types of emission devices are not to be made APN#000-000-000
<br /> mo without the written consent of the landscape architect.
<br /> L o LU= 12. The overall irrigation system has been designed to be o minimum of 75% efficient.
<br /> M Total water demand of established landscape has been designed to use less water
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<br /> LU than the Maximum Applied Water Allowance (MAWA). See Irrigation Schedule and
<br /> (D << Irrigation Water Audit Notes.
<br /> Z= 13. The irrigation system has been designed so that each circuit has matched precipitation
<br /> CC o rates within the circuit and high distribution uniformity. The contractor shall not
<br /> _ 0 substitute without written consent of the landscape architect.
<br /> Fo 14. Swing joints shall be installed on all pop-up heads per the plans and details. ENDEAVOR
<br /> m 0 15. Areas less than 10' in width have been irrigated with subsurface, drip, or low volume
<br /> o w W irrigation. If construction site modifications reduce spray irrigated planter areas less
<br /> co than 10' contact the landscape architect.
<br /> Z= 16. Overhead spray irrigation heads and nozzles are not allowed within 24" of Water Efficient Landscape Ordinance
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<br /> 5 non-permeable paving. This requirement does not apply to irrigation that is adjacent
<br /> to permeable paving or non-permeable paving that drains into landscape before Planting and Irrigation have been designed to be compliant with
<br /> CO Z Z entering the storm drain system. the Water Efficient Landscape Ordinance. The contractor shall WELD Notes
<br /> a not make substitutions of Irrigation product or placement of
<br /> 0 z g 17. Sloped planting areas greater than 25% (4:1) have been designed With irrigation product or plant species and cultivars without written consent of
<br /> w whose precip(tation rate does not exceed .75 /hour, or another means has been the Landscape Architect. The contractor shall be responsible and Calcs
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<br /> employed and described on the plans. for making all modifications to ensure the requirements of the
<br /> COZ 18. Trees may be designed with a separate deep root bubbler system - See the plans. Water Efficient Landscape Ordnance are met if any changes are
<br /> Q o IG. The signature on the irrigation plans is applicable to the statement - "I have complied made. Water use calculations as described on these plans must
<br /> z o with the criteria of the ordinance and applied them accordingly for the efficient use of be met. The signature on this plan concurs that "I have complied
<br /> LU w water in the irrigation design plan." with the criteria of the water conservation in Landscaping
<br /> LU Ordinance and applied them accordingly for the efficient use of
<br /> coo G water in the irrigation and planting design plan."
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