7 6
8 5
Attachment A: 2025 Annual Water Shortage Assessment Report Tables 7 6
8 5
Table 1. Annual Assessment InformationAnnual Assessment InformationYear Covered By This Shortage Report (Required)Start: July 1,2025End: June 30,2026Volume 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:JuneData Interval: Monthly (12 data points per year)Water Supplier's Contact Information (Required)Water Supplier's Name:City of Palo Alto Contact Name:Karla DaileyContact Title:Assistant Director of Utilities, Resource ManagementStreet Address:250 Hamilton Avenue, Palo Alto ZIP Code:94301Phone Number:(650)329-2523Email Address:[email protected] 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 2020 Water Shortage Contingency Plan of the City of Palo AltoWSCP Adoption Date 6/7/2021Other Annual Assessment Related ActivitiesActivity Timeline/ Outcomes / Links / Notes Annual Assessment/ Shortage Report Title:Optional Annual Assessment / Shortage Report Approval Date: 6/2/2025 Other Annual Assessment Related Activities:
The 2020 Water Shortage Contingency Plan of the City of Palo Alto states that Palo Alto will utilize the BAWSCA Regional Reliability Model to evaluate water supply availability, however, the plan also permits the City to use SFPUC data since SFPUC is the City's sole supplier. Specifically, the 2020 Water Shortage Contingency Plan states: "Because Palo Alto relies on only one potable water supply source, SFPUC RWS water, the Annual Assessment will rely on key data inputs from the SFPUC." Palo Alto used the SFPUC's April 15, 2025 Water Supply Availability Update to determine water supply. (Add rows as needed)
7 6
8 5
= From prior tables= Auto calculated
Use Type Start Year: 2025 Volumetric Unit Used2: AF Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total by Water Demand Type All Demands 1310 1285 1307 1088 929 686 654 575 660 697 969 1135 112950000000001310 1285 1307 1088 929 686 654 575 660 697 969 1135 11295 All Demands Tertiary 54 53 35 22 11 2 2 11 9 24 42 50 315000054 53 35 22 11 2 2 11 9 24 42 50 315 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total 0000 Table 2: Water Demands1
Projected Water Demands - Volume3
Total by Month (Non-Potable)
1Projections are based on best available data at time of submitting the report and actual demand volumes could be different due to many factors.2Units of measure (AF, CCF, MG) must remain consistent. 3When opting to provide other than monthly volumes (bi-monthly, quarterly, or annual), please see directions on entering data for Projected Water Demand in the Table Instructions.
Notes: Potable unconstrained customer demand determined using the end-use model described in the 2020 UWMP Section 4. Non-potable unconstrained customer demand determined based on 2020 UWMP projection.
Total by Month (Potable)
Additional Description (as needed)
Level of Treatment for Non-Potable SuppliesDrop-down list Drop-down listMay select each use multiple timesThese are the only Use Types that will be recognized by the WUEdata online submittal tool(Add additional rows as needed) Demands Served by Potable Supplies
Demands Served by Non-Potable Supplies
Three years ago total demandFour years ago total demand Optional (for comparison purposes)Last year's total demandTwo years ago total demand 7 6
8 5
= From prior tables= Auto calculated
Water Supply Start Year: 2025 Volumetric Unit Used2: AF Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total by Water Supply Type Purchased/Imported Water
San Francisco Public Utilities Commission Regional Water Supply System 1310 1285 1307 1088 929 686 654 575 660 697 969 1135 11295 0000000001310 1285 1307 1088 929 686 654 575 660 697 969 1135 11295 0 Recycled Water
Recycled Water from the Regional Water Quality Control Plant 54 53 35 22 11 2 2 11 9 24 42 50 315
000054 53 35 22 11 2 2 11 9 24 42 50 315 0
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total0
Table 3: Water Supplies1
Projected Water Supplies - Volume3 Water Quality
Drop-down List
Total Right or Safe Yield* (optional)
Additional Detail on Water Supply
Drop-down ListMay use each category multiple times.These are the only water supply categories that will be recognized by the WUEdata online submittal tool (Add additional rows as needed)Potable Supplies Non-Potable Supplies
eAR Reported Total Water SuppliesOptional (for comparison purposes) 1Projections are based on best available data at time of submitting the report and actual supply volumes could be different due to many factors.2Units of measure (AF, CCF, MG) must remain consistent. 3When opting to provide other than monthly volumes (bi-monthly, quarterly, or annual), please see directions on entering data for Projected Water Supplies in the Table Instructions.
Notes: Palo Alto purchases 100% of its potable water from SFPUC; Palo Alto used the SFPUC's March 1, 2024 Water Supply Availability Update to determine water supply. Palo Alto supplies recycled water for irrigation of the municipal golf course, a park and some other minor applications. There is sufficient supply of both potable and recycled water to meet demand.
Total by Month (Potable)
Total by Month (Non-Potable)
7 6
8 5
= Auto calculated
= From prior tables
= For manual
input
Table 4(P): Potable Water Shortage Assessment1 Start Year: 2025 Volumetric Unit Used2: AF Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun3 Total
Anticipated Unconstrained Demand 1310 1285 1307 1088 929 686 654 575 660 697 969 1135 11295 Anticipated Total Water Supply 1310 1285 1307 1088 929 686 654 575 660 697 969 1135 11295 Surplus/Shortage w/o WSCP Action 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% State Standard Shortage Level 0 0 0 0 0 0 0 0 0 0 0 0 0 Planned WSCP Actions4
Benefit from WSCP: Supply Augmentation 0.0 Benefit from WSCP: Demand Reduction 0.0
Revised Surplus/Shortage with WSCP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Revised Surplus/Shortage with WSCP 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 1Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2Units of measure (AF, CCF, MG) must remain consistent. 3When 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. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5. = Auto calculated
= From prior tables
= For manual
input
7 6
8 5
Table 4(NP): Non-Potable Water Shortage Assessment1 Start Year: 2025 Volumetric Unit
Used2:
AF
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun3 Total
Anticipated Unconstrained Demand: Non-Potable 54 53 35 22 11 2 2 11 9 24 42 50 315 Anticipated Total Water Supply: Non-Potable 54 53 35 22 11 2 2 11 9 24 42 50 315 Surplus/Shortage w/o WSCP Action: Non-Potable 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action: Non-Potable 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Planned WSCP Actions4
Benefit from WSCP: Supply Augmentation 0.0 Benefit from WSCP: Demand Reduction 0.0
Revised Surplus/Shortage with WSCP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Revised Surplus/Shortage with WSCP 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 1Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2Units of measure (AF, CCF, MG) must remain consistent. 3When 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. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5. 7 6
8 5
July 1, 2025 to June 30, 2026
Enter Amount
(Drop-down
List)
Select % or
Volume Unit
Start Month End Month
NOTES:
Notes Section to be used
only for clarifying details,
and not for listing specific
actions. Actions must be
entred into table rows 1If you plan Supply Augmentation Actions then you must enter WSCP Benefits from Supply Augmentation Actions into Table 4. If you plan Demand Reduction Actions then you must enter WSCP Benefits from Demand Reduction Actions into Table 4. 2If 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 the different implementation periods.
Table 5: Planned Water Shortage Response Actions
Add additional rows as needed
How much is action going to
reduce the shortage gap?
(Optional)
When is shortage response
action anticipated to be
implemented2?Is action
already being
implemented?
(Y/N)
ACTIONS1: Demand Reduction,
Supply Augmentation, and Other
Actions.
(Drop-down List)
These are the only categories that will
be accepted by the WUEdata online
submittal tool. Select those that apply.
Anticipated Shortage
Level
Drop-down List of
State Standard Levels (1 -
6) and Level 0 (No
Shortage)
Palo Alto currently inplements permanent water use restrictions according to the Palo Alto Municipal Code Section
12.32.010 https://codelibrary.amlegal.com/codes/paloalto/latest/paloalto_ca/0-0-0-69362#JD_Chapter12.32. There is currently no water shortage projected for FY 2026 in Table 4(P).