June 7, 2022, Item #14DATE: TO: FROM: CONTACT: SUBJECT: Summary: AGENDA REPORT CityofPoway June 7, 2022 Honorable Mayor and Members of the City Council Eric Heidemann, Director of Public Works 4._}t-Jessica Parks, Public Works Utilities Administrator~? (858) 668-4703 or [email protected] U CITY COUNCIL Approve Poway's 2022-2023 Water Supply and Demand Assessment As required by recent state legislation, an Annual Water Supply and Demand Assessment (Annual Assessment) is to be completed by each urban water supplier with information on anticipated water shortage, triggered shortage response actions, compliance and enforcement actions, and communication actions. Staff completed Poway's 2022-2023 Annual Assessment which concluded that the City of Poway will have sufficient water supplies to meet anticipated customer demands for the next 12 months starting July 1, 2022. Recommended Action: It is recommended that the City Council receive the 2022-2023 Annual Water Supply and Demand Assessment and authorize the Annual Assessment to be submitted to the State of California with any modifications requested by the Department of Water Resources or the State Water Resources Control Board to be corrected administratively by staff. Discussion: Following the last drought, ending in 2017, a new suite of water management legislation was adopted. Beginning this year, new requirements in the California Water Code§ 10632.1 requires water suppliers to prepare an annual water supply and demand assessment report for a 12-month period starting July 1 each year. The Annual Assessment will be used to evaluate short-term water supply reliability for the upcoming year and is due to the Department of Water Resources (DWR) on or before July 1. On May 18, 2021, the City Council adopted Poway's Water Shortage Contingency Plan (WSCP) which included prescribed actions to prepare and present an annual water supply and demand assessment. The Annual Assessment process includes staff analyzing projected water supply and demands, presenting the results to the City Council in June and submitting the results and any local 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 1 of7
June 7, 2022, Item #14demand and ensure adequate supply. This is the first year the City of Poway Annual Assessment is being brought before the City Council. DWR provided a guidebook and required template for each urban water agency to complete and submit as their annual assessment. 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 the approved guidance in the WSCP, staff reviewed anticipated local water demands and consulted with the San Diego County Water Authority (SDCWA) on regional supplies and constraints. Despite a third year of a significant state-wide drought, water supplies from the City of Poway's wholesalers, namely the SDCWA and Metropolitan Water District (MWD), are expected to be sufficient to provide the water necessary to meet customers' expected demands. Based on these findings, the City of Poway's 2022-2023 Annual Assessment (Attachment A) concludes we will have adequate water supplies to meet expected customer demands. The supplies will not be curtailed by known infrastructure constraints, dry and hot weather conditions, or other restrictions, and no additional actions should be required. Although the Annual Assessment is due by July 1 each year, the Governor issued Executive Order N-7-22 which, among other actions, required that each urban water supplier submit a preliminary Annual Assessment one month early, by June 1, 2022. The City of Poway's preliminary assessment was submitted as required on May 31, 2022. The attached final assessment does not include any changes from the submitted preliminary assessment. Environmental Review: This action is not subject to review under the California Environmental Quality Act (CEQA). Fiscal Impact: None with this action. Public Notification: None. Attachment: A. City of Poway's Annual Water Supply and Demand Assessment Reviewed/ Approved By: Assistant City Manager 2 of7 Reviewed By: Alan Fenstermacher City Attorney Approved By: Ch~ City Manager
June 7, 2022, Item #14Table 1. Annual Assessment Information Start Month: July Volume Unit for Reported Supply and Demand: {Must use the same unit throughout) AF Water Supplier's Name: City of Poway Contact Name: Jessica Parks Contact Title: Utilities Administrator Street Address: 14467 Lake Poway Road ZIP Code: Phone Number: 858-668-4703 ii Address: [email protected] Report Preparer's Contact Information (if different from above) Preparer's Organization Name: Preparer's Contact Name: Phone Number: Supplier's Water Shortage Contingency Plan Water Shortage Contingency Plan Annual Assessment/ Shortage Report Title: Optional Annual Assessment/ Shortage Report Approval Date: MM/DD/YYYY Other Annual Assessment Related Activities: Optional 3of7 ATTACHMENT A 92064
June 7, 2022, Item #14Table 2: Water Demand?
Use Type Start Year: 1~1 Volumetric Unit Used2:
Drop-down list Level of May select each use multiple times Treatment for These are the only Use Types that will be Additional Description recognized by the WUEdata online (as needed) Non-Potable I Projected Water Demands -Volume3 submittal tool Supplies
(Add additional rows as needed) Drop-down list
Jul Aug Sep Oct Nov Dec
II Demands
0 0 0 0
Landscape
0 I 0 I 0 I 0 I 0
Notes: List considered factors impacting demands
Pro1ect1ons are based on best available ctata at time of subm1tt1ng the report anct actual ctemanct volumes coulct be ct1fferent ctue to many factors · Units of measure (AF. CCF. MGJ must remain consistent Jan Feb Mar
0 0 0
I 0 I 0 I 0
'When opting to prov1cte other than monthly volumes (b1 monthly. quarterly. or annual). please see ct1rect1ons on entering ctata for Proiectect Water Demanct 1n the Table Instructions Optional (for comparison purposes) Jul Aug Sep Oct Nov Dec Jan Feb Mar Last year's total demand
Two years ago total demand
Three years ago total demand
Four years ago total demand
= From prior tables I
= Auto calculated
I {.ill"
Apr May I Jun
10900
0 Q
Q
Q
Q
Q
Q
Q
0 0 0 10900 1090
486 481
0 0
Q
0 I 0 I 0 I 486 I 4
Apr May Jun Total
0 0
0 0
June 7, 2022, Item #14u,
0 .... .....
Table 3: Water Supplie 1
WatPr Suoolv
Drop-down List
May use each category multiple
Start Year:
Additional
times.These are the only water supply I Detail on Water categories that will be recognized by the
WUEdata online submittal tool
(Add additional rows as needed)
Purcha
cycled Water
Supply
Jul Aug
1 ~1 Volumetric Unit Used2:
Projected Water Supplies -Volume3
Sep Oct Nov Dec Jan Feb Mar
0 0 0 0 0
0 0 0 0
~----= From prior tables
= Auto calculated
~
Water Quality ' Total Right or
Drop-down I Safe Yield•
(optional)
Total by I List
Apr May I Jun Water Supp
10900 10900
.Q
.Q
.Q
.Q
.Q
.Q
.Q
.Q
0 0 ~ 900 I ~ 486
.Q
.Q
.Q
0 0
Notes: Our wholesale water supplier, the San Diego County Water Authority (SDCWA), 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 an out-of-region groundwater banking program in the California Central Valley. In addition, the Water Authority 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. of water within the region. If Poway exceeds their anticipated demands listed in this report, the SDCWA will be able to accommodate the additional water needed. : Proiect1om are based on best available data at time of subm1tt1ng the report and actual supply volumes could be different due to many factors Units of measure (AF, (CF, MG) must remain cons1Stent
'When oµt1ng to µrov1de other than monthly volumes /b1·monthly, quarterly, or annual), please see d1rect1ons on entering data for Proiected Water Supplies 1n the Table Instructions Optional (for comparison purposes) Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May eAR Reported Total Water Supplies
Jun Total
0 June 7, 2022, Item #140\
0 ..... .....
Table 4(P): Potable Water Shortage Assessment
d WSCP Actions
%
0.0 0.0
.0
.0
070
.0
June 7, 2022, Item #14Table 5: Planned Water Shortage Response Actions July 1, Anticipated Shortage ACTIONS: Demand Reduction, Supply How much is action going to reduc action anticipated to be Level Augmentation, and Other Actions. Is action the shortage gap? implemented? Drop-down List of (Drop-down List) already being State Standard These are the only categories that will be implemented? (Drop-down Levels (1 -6) and accepted by the WUEdata online submittal (Y/N) Enter Amount List) Start Month End Month tool. Select those that apply. Select% or Volume Unit ii da 0 % Ju n No 0 % July June 0 (No Shortage) Water Features -Restrict water use for No 0 % July June decorative water features, such as fountains 0 (No Shortage) Other -Customers must repair leaks, breaks, Yes 0 % July June and malfunctions in a timely manner 0 (No Shortage) Other -Prohibit use of potable water for Yes 0 % July June 0 (No Shortage) Yes 0 % July June 0 % July June Sho Yes 0 % July June Yes 0 % July June Yes 0 % July June Yes 0 % July June 0 (No Shortage) Yes 0 % July June Notes: Per Executive Order N-7-22, our agency is implementing locally appropriate Level 2 response actions throughout the year even though there is no identified water supply shortage 7of7