City of Santa Monica
12.A. Public Hearing for 2026 Annual Water
Supply and
Demand Assessment
City Council Meeting
June 9, 2026
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
2026 Annual Water Supply and Demand Assessment
1%
• Required by the California Water Code as of 2022
• Helps identify potential water shortages
• Assess dry, hot conditions as projected year
• Projected Year: July 1, 2026 – June 30, 2027
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Unconstrained vs Constrained Demand
1%
• Unconstrained demand: Water demand without
any water conservation
• Constrained demand: Potable water demand
with conservation reduction included (e.g., 20%)
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Data Inputs – Projected Supply
1%
Imported Water MWD Tier 1 Allocation: 7,406 AF
Local Supplies (2020 UWMP Drought Risk Assessment): 6,755 AF ____________________________________________________
Imported + Local Supplies = 14,161 AF
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Assessment Results – Without Conservation
Total (AF)
Anticipated Unconstrained Demand 12,472
Anticipated Total Water Supply 14,161
Surplus/Shortage w/out Water Shortage Response
Actions
1,689
% Surplus/Shortage w/out Water Shortage Response
Actions
14%
State Standard Shortage Level without Water Shortage
Response Actions
Level 0
(No Shortage)
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Water Shortage Stage Recommendation
1%
• Recommend staying in Stage 2
• CA Senate Bill SBX7-7 and CA
Executive Order B-37-16 require
meeting conservation targets
• Conservation helps City's broader
water goals
• Increased demand without Stage
2 would result in more imported
water and higher rates
Water
Shortage
Stage
Shortage
Level
Water Shortage
Condition
Water Use
Restrictions
City-wide Use
Reduction Goal
Stage 1 ≤10% Minimal Voluntary 10%
Stage 2* 10-20% Moderate Mandatory 20%
Stage 3 20-30% Significant Mandatory 30%
Stage 4 30-40% Severe Mandatory 40%
Stage 5 40-50% Critical Mandatory 50%
Stage 6 >50% Catastrophic Mandatory >50%
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Assessment Results – With Conservation
Total (AF)
Projected Year Supply (Local Groundwater and MWD Tier 1 Supply)
14,161
Projected Unconstrained Demand 12,472
Benefit from Stage 2 Water Demand Reduction Actions (2,495) Constrained Demand 9,977
Revised Surplus w/ Water Shortage Response Actions
(Total Supply – Constrained Demand)
4,183
Revised % Surplus w/ Water Shortage Response Actions 34% Item 12-A
June 9, 2026
Item 12-A
June 9, 2026
Requested Action from the Council
1%
• Staff recommends the Council motion to adopt
the 2026 Annual Water Supply and Demand
Assessment
Item 12-A
June 9, 2026
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June 9, 2026
THANK YOU
Item 12-A
June 9, 2026
Item 12-A
June 9, 2026