June 4, 2024, Item #10DATE: TO: FROM: CONTACT: SUBJECT: Summary: AGENDA REPORT CityofPoway June 4, 2024 Honorable Mayor and Members of the City C~cil Eric Heidemann, Director of Public Works '1 Alisa Nichols, Utilities Administrator ~ (858) 668-4703 or [email protected] CITY COUNCIL Approve the City of Poway's 2024-2025 Annual Water Supply and Demand Assessment As required by state legislation, urban water suppliers are required to complete an Annual Water Supply and Demand Assessment (Annual Assessment) including information regarding any anticipated water shortage, planned water shortage response actions, and communication, compliance and enforcement actions. Staff completed Poway's 2024-2025 Annual Assessment which concluded the City of Poway will have sufficient water supplies to meet all anticipated demands for the next 12 months starting July 1, 2024. Recommended Action: It is recommended the City Council approve the 2024-2025 Annual Assessment and authorize the submittal of the Annual Water Shortage Assessment Report (Annual Shortage Report) to the State of California with any modifications requested by the Department of Water Resources (DWR) or the State Water Resources Control Board to be corrected administratively by staff. Discussion: Beginning in 2022, California Water Code § 10632.1 requires water suppliers to prepare an annual water supply and demand assessment and submit an assessment report to DWR covering the 12-month period starting July 1. Annual Assessments are used to evaluate short-term water supply reliability for the upcoming year and the corresponding Annual Shortage Report must be submitted to DWR on or before July 1. On May 18, 2021, the City Council adopted Poway's Water Shortage Contingency Plan (WSCP) which includes prescribed actions to prepare an Annual Assessment, including conducting an analysis of projected water supply and demands, presenting the results to City Council and submitting the results, and any necessary shortage response actions, to DWR before July 1. If the Annual Assessment projects a supply deficit, the City Council will vote to determine the appropriate water shortage response level and associated actions necessary to reduce demand and ensure adequate supply. 1 of7
June 4, 2024, Item #10DWR provided a guidebook and required template for each urban water supplier to complete and submit as their Annual Shortage Report. Water suppliers are permitted to report on either a monthly or annual basis. Though the tables within the template do not include a column for annual totals, DWR's published guidebook instructs water suppliers to put the annual number in the June column. Following DWR guidelines and Poway's WSCP prescribed actions, staff reviewed anticipated local water demands and consulted with the San Diego County Water Authority (SDCWA) on regional supplies and constraints. Due to hydrological wet conditions over the last two preceding winters and continued regional supply diversification efforts by regional wholesalers, SDCWA and Metropolitan Water District of Southern California, sufficient water supplies are available to meet Poway's expected demands. Based on these findings, the City of Poway's 2024-2025 Annual Assessment (Attachment A) concludes adequate water supplies are available to meet expected customer demands. Water supplies will not be curtailed by known infrastructure constraints, dry and hot weather conditions, or other restrictions, and no additional actions should be required. Environmental Review: This action is not subject to review under the California Environmental Act (CEQA). Fiscal Impact: There is no fiscal impact as a result of this action. Public Notification: None. Attachments: A. City of Poway's 2024-2025 Annual Water Supply and Demand Assessment Reviewed/Approved By: Wendy Kaserman Assistant City Manager 2 of7 Reviewed By: Alan Fenstermacher City Attorney A~~ Chris Ha City Manager
June 4, 2024, Item #10Table 1. Annual Assessment Information i-6lt.@t:t\.s~s~n:iedf:«.ltiiri"ijjJlh • ' ·•, •.· .. ·: _-,_ ' .. . -•-' ·' -' ', ; -· . " -~·· .. . -Year Covered By This Shortage Report (Required) Start: July 1, 2024 End: June 30, 2025 Volume Unit for Reported Supply and Demand: (Must use the same unit throughout) AF Supplier's Annual Assessment Planning Cycle (Required) Start Month: July End Month: June Data Interval: Annually (1 data point per year) Water Supplier's Contact Information (Required) Water Supplier's Name: City of Poway Contact Name: Alisa Nichols Contact Title: Utilities Administrator Street Address: 14467 Lake Poway Road ZIP Code: 92064 Phone Number: (858)668-4703 Email Address: [email protected] Report Preparer's Contact Information 'if different from above) Preparer's Organization Name: Preparer's Contact Name: Phone Number: Email Address: Supplier's Water Shortage Contingency Plan WSCP Title Water Shortage Contingency Plan WSCP Adoption Date 5/18/2021 .,,.-!ll~ )f.~niii,.. ,_, .; "'-:j;.l~\1~~-~" :.:.: -~--~•" It ©,t r!f ~-~] ~S§~e~i:t tecu. .IJlti~. ) ,_, < ,;. • ... ;, -~· ~ --_. ·xt~ ,if·~ f. .. ", _.._.., ··~:; , .. ·:}•-u, -r·,:._ •., -~ , __ " .:: -r. Activity Timeline/ Outcomes/ Links / Notes Annual Assessment/ Shortage Report Title: Optional Annual Assessment/ Shortage Report Approval Date: Other Annual Assessment Related Activities: Optional (Add rows as needed) 3 of7 ATTACHMENT A
June 4, 2024, Item #10.i:,.
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0 0 Notes: Our wholesale water supplier, the San Diego County Water Authority, has access to additional supplies through its Carryover Storage Program, which includes in-region surface storage of approximately 70,000 acre-feet at San Vicente Reservoir. The Water Authority's policy is to limit use of that water to one-fifth of the total per year, if needed. The Water Authority also has access to additional supplies from the Metropolitan Water District of Southern California via its preferential right to purchase water. Under a dry-year scenario, that volume of water is assumed to be at least 300,000 acre-feet per year.
June 4, 2024, Item #10en
0 -4' ...., !Table 4(P): Potable Water Shortage Assessment' Start Year: 2024 Jul Aug Sep Oct Nov
Anticipated Unconstrained Demand o.o 0.0 0.0 0.0
Anticipated Total Water Supply 0.0 0.0 0.0 0.0
Surplus/Shortage w/o WSCP Action o.o 0.0 o.o 0.0
% Surplus/Shortage w/o WSCP Action
State Standard Shortage Level 0 0 0 0 0
Planned WSCP Actions'
Benefit from WSCP: Supply Augmentation
Benefit from WSCP: Demand Reduction
Revised Surplus/~ortage with \\/SQ' 0.0 0.0 0.0 0.0
[~ % Revised Surplus/Shortage with WSCP I
1Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 'Units of measure (AF. CCF, MG) must remain consistent.
Dec
0.0 0.0
0.0 0.0
0.0 0.0
0 0.0 0.0
= Auto calculated
= From prior tables
= For manual input
Volumetric Unit Used2: AF
Jan Feb Mar Apr May Jun3 Total
0.0 0.0 o.o o.o 0.0 9625.0 9625.0
0.0 0.0 0.0 0.0 0.0 9625.0 9625.0
0.0 0.0 0.0 o.o 0.0 o.o 0.0
0% 0%
0 0 0 0 0 0 0
o.o
o.o
0.0 0.0 0.0 o.o 0.0 0.0 o.o
3When optional monthly volumes aren't provided. verify Tables 2 and 3 use the same columns for data entry <ind are reflected properly in Table 4 and mJke sure to use thou• same columns to enter the bcneflh from Pl.inned WSCP Actions. Pltwr.e see directions on thr shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier Is highly recommcmded to perform a monthly analysis to more accurately identify the time of short.1ge . .;If you enter any WSC~ Benefits, the~ vou mus~ e~ter the correspondi~g pla!1!1~?-~~io~s Into Ta~le 5~ ·-~ ________ _ Table 4(NP): Non-Potable Water Shortage Assessment1 Start Year: 2024 Jul Aug Sep Oct Nov
Anticipated Unconstrained Demand: Non-Potable 0.0 0.0 0.0 0.0 Anticioated Total Water Supply: Non-Potable o.o 0.0 0.0 0.0 Surplus/Shortage w/o WSCP Action: Non-Potable 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action: Non-Potable
Planned WSCP Actions4
Benefit from WSCP: Supply Augmentation
Benefit from WSCP: Demand Reduction
Revised Surplus/Shortage with WSCP 0.0 0.0 0.0 o.o ! % Revised Surplus/Shortage with WSCP ! 1Assessments are bas~d on best available data at time of submitting the report and actual volumes could be different due to many factors. 1Units of measure (AF, CCF, MG} must remain consistent.
0.0 o.o
0.0 o.o
Volumetric Unit Used':
Dec Jan Feb Mar
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
= Auto calculated j
= From prior tables
= For manual Input J
AF
Apr May Jun' Total
0.0 0.0 0.0 441.0 441.0 o.o o.o 0.0 441.0 441.0 o.o 0.0 0.0 0.0 0.0 0% 0%
0.0 0.0
0.0 0.0 0.0 0.0 o.o
1when optional monthly volumes aren't provided, verify Tables 2 and 3 use the same columns for data entry and are reflected properly in Table 4 and make sure to use those same columns to enter the benefits from Planned WSCP Actions. Ple,1sc sec directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier Is highly recommended to perform a monthly an;ilysis to more accurately Identify the time of shortage. '11 you enter any WSCP Benefits, then you must enter the corresponding planned Actions Into Table S.
June 4, 2024, Item #10Anticipated Shortage ACTIONS1: Demand Reduction, Supply How much is action going to When is shortage response reduce the shortage gap? action anticipated to be level Augmentation, and Other Actions. Is action (Optional) implemented'? Drop-down list of (Drop-down list) already being State Standard levels (1 -These are the only categories that will be implemented? /Drop-down 6) and level O (No accepted by the WUEdata online submittal (Y/N) Enter Amount List) Start Month End Month Shortage) tool. Select those that apply. Select% or Volume Unit Add additional rows as needed 0 (No Shortage) Other-Prohibit use of potable water for washi Yes July June O (No Shortage) Landscape -Restrict or prohibit runoff Yes July June from landsca e irri ation 0 (No Shortage) Landscape -limit landscape irrigation to Yes July June s ecific times 0 (No Shortage) Other -Require automatic shut of hoses Yes July June Water Features -Restrict water use for 0 (No Shortage) decorative water features, such as Yes July June fountains 0 (No Shortage) Landscape -Restrict or prohibit runoff Yes July June from landsca e irri ation 0 (No Shortage) Other-Require automatic shut of hoses Yes July June O (No Shortage) err -Lodging establishment must offer opt Yes July June out of linen service O(NoShorta e) err -Other err restriction or rohibition Yes Jul June 0 (No Shortage} CII -Other err restriction or prohibition Yes July June Other -Customers must repair leaks, 0 (No Shortage) breaks, and malfunctions in a timely Yes July June manner 0 (No Shortage) Other -Prohibit use of potable water for Yes July June construction and dust control 0 (No Shortage) Landscape -limit landscape irrigation to Yes July June specific days O (No Shortage) Pools -Allow filling of swimming pools only Yes July June when an appropriate cover is in place. 0 (No Shortage) err -Restaurants may only serve water u on re uest Yes July June 0 (No Shortage} Offer Water Use Surveys Yes July June O (No Shorta e) Provide Rebates for Turf Re lacement Yes Jul June 0 (No Shortage) Provide Rebates on Plumbing Fixtures and Yes July June Devices 0 (No Shorta e} CII -Other CII restriction or rohibition Yes Jul June NOTES: On March 24, 2023, Executive Order N-5-23 terminated the requirement for urban water suppliers to implement Level 2 Notes Section to be used only actions. Poway's regional wholesaler, the San Diego County Water Authority (SDCWA), deactivated Level 1 and for clarifying details, and not implementation of Level 2 actions of their Water Shortage Contingency Plan, effective July 1, 2023. Poway's WSCP and its for listing specific actions. subsequent actions are directly linked to SDCWA's water supply reliability as Poway currently obtains all of its potable water Actions must be entred into supply from SDCWA. On August 1, 2023, Poway adopted Resolution No. 23-044 to Return to Poway's WSCP Water Shortage table rows above. Level 1 Voluntary Water Measures. The Level 1 voluntary demand reduction actions are as follows: Other· Prohibit use of potable water for washing hard surfaces; Landscape -Restrict or prohibit runoff from landscape irrigation; Landscape -limit landscape irrigation to specific times; Other -Require automatic shut of hoses; Water Features -Restrict water use for decorative water features, such as fountains; Wash vehicles only using a hand-held hose equipped with a positive shut-off nozzle and a bucket, or a high pressure/low volume wash system; err -Lodging establishment must offer opt out of linen service; err -Do not use single-pass cooling equipment in new commercial applications; CII -Use a water recirculation system for commercial conveyor car washes and all new commercial laundry systems; Other -Run only fully loaded dishwashers and washing machines; Other-Customers must repair leaks, breaks, and malfunctions in a timely manner; Other· Prohibit use of potable water for construction and dust control; Landscape -Limit landscape irrigation to specific days; Pools -Allow filling of swimming pools only when an appropriate cover is in place; and err -Restaurants may only serve water upon request. Identified "Other err restriction or prohibition" is as follows: The use of potable water is prohibited for the irrigation of non-functional turf at commercial, industrial, and institutional sites; however, the use of potable water is not prohibited to the extent necessary to ensure the health of trees and other perennial non-turf plantings or to the extent necessary to address an immediate health and safety need. ·•11y~u plan Supply.Augme-;;iatlo·n Actions.then y-;,u must enter WSCP Benefits from S~pply Aug,:;,ent~tlo;; Act1on-;i~t~-Ta.ble i1f you· plan Oem-;,nd Red~ct10~ A~tio;,-;-then you must enter WSCP Benefits from Demand Reduction Actions into Table 4. (If an Action IS planned to be implemented in multiple non-contiguous periods of the year, please make separate entries on multiple rows for the same action spanning !_he d,ff~r_:nt 1mpleme~taUon periods. _ .. _ . _ • _ . , 7 of7