COMMITTEE AGENDA MEMORANDUM
Santa Clara Valley Water Commission
Government Code ? 84308 Applies: Yes ? No ?
(If "YES" Complete Attachment A - Gov. Code ? 84308)
SUBJECT: title
Receive Information on Valley Water's Water Supply Master Plan 2050.
End
RECOMMENDATION: Recommendation
Receive Information on Valley Water's Water Supply Master Plan 2050.
Body
SUMMARY:
The Water Supply Master Plan (WSMP) is Santa Clara Valley Water District's (Valley Water) guiding document for long-term water supply investments to ensure water supply reliability for Santa Clara County. Updated approximately every five years, this long-range plan assesses projected future county-wide demands and evaluates and recommends water supply and infrastructure projects to meet those demands to achieve Valley Water's level of service goal through the planning horizon. Valley Water's level of service goal, as established in Board Ends Policy E2, is to "Meet 100 percent of annual water demand during non-drought years and at least 80 percent of demand in drought years."
Valley Water developed the WSMP 2050 to evaluate and respond to changing conditions such as severe drought, reductions in imported water supplies, shifting water demands, and concerns about affordability. The WSMP 2050 addresses both existing and emerging challenges and identifies strategies to maintain the reliable water supply system for Santa Clara County through 2050. The WSMP 2050 planning effort spanned two years with three updates to the commission. The resulting plan was adopted by the Board of Directors (Board) in November 2025 and is attached (Attachment 1).
Planning Approach
The WSMP 2050 analyzes four alternative futures based on the combination of demand projections and forecasted imported water supplies. This approach is intended to account for uncertainty in forecasted future demand and supply and provide an adaptive framework for decision-making.
A. Stable Demand and Moderately Impacted Imports
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