Monthly Water Tracker

As of July 1, 2025

On April 29, 2025, California Department of Water Resources (DWR) announced an increase in State Water Project (SWP) allocation from 40% to 50% of contract amount for 2025. The U.S. Bureau of Reclamation (USBR) increased the Central Valley Project (CVP) Municipal and Industrial (M&I) allocation for the current year from 75% to 80% of historic use and the south-of-delta CVP agricultural allocation from 50% to 55% on May 27, 2025.

Weather

• Rainfall in Santa Clara County
  • Month of June, City of San José: 0 inches
  • Rainfall year total = 9.61 inches or 67% of average to date (rainfall year is July 1 to June 30)
• San José average daily high temperature was 76.1 degrees Fahrenheit in June, which is lower than the five-year average for June (80.1 degrees Fahrenheit)

Local Reservoirs

Current local reservoir storage

• Total July 1 storage = 46,803 acre-feet
  

• Approximately 120 acre-feet of imported water was delivered into Calero Reservoir during June 2025
• Total estimated releases to streams (local and imported water) during June were 4,720 acre-feet (based on preliminary hydrologic data)

Groundwater

Groundwater conditions remain healthy throughout the county. Groundwater levels in most of the regional monitoring wells are lower than last month due to normal, seasonal declines. While most of the water levels are lower relative to June 2024, all except one are the same as, or higher than, the prior five-year average for June. The end of 2025 groundwater storage is projected to be in Stage 1 (Normal) of the Water Shortage Contingency Plan

Imported Water

• In June (through June 30th), the SWP operated Banks pumping plant with an average daily export of 3,446 acre-feet, resulting in a total export of 103,376 acre-feet from the Sacramento-San Joaquin Delta for the month
• In June (through June 30th), the CVP operated Jones pumping plant with an average daily export of 6,214 acre-feet, resulting in a total export of 186,405 acre-feet from the Sacramento-San Joaquin Delta for the month
• Delta flow and water quality requirements were controlling the Sacramento-San Joaquin Delta export facilities this past month. Project facilities, including delta exports, were operated to maintain the Projects’ respective flow requirements and water quality standards in the delta for the month of June
  

Click here to find the State-Wide Reservoir Storage map and table

Treated Water

• Below average demands of 9,327 acre-feet were delivered in June
• This total is 93% of the five-year average for the month of June
• Year-to-date deliveries are 35,797 acre-feet or 89% of the five-year average

Conserved Water

• Saved 85,204 acre-feet in FY24 through Valley Water’s long-term conservation program (baseline year is 1992)
• Long-term program goal is to save nearly 100,000 acre-feet by 2030, 110,000 acre-feet by 2040, and 126,000 acre-feet by 2050
• On June 13, 2023, the Board of Directors adopted a resolution to support water conservation as a way of life in Santa Clara County and an ordinance with a set of permanent water waste prohibitions

Recycled Water

• Estimated June 2025 production = 1,829 acre-feet
• Estimated year-to-date through June = 6,664 acre-feet or 95% of the five-year average
• Silicon Valley Advanced Water Purification Center produced an estimated 1.6 billion gallons (4,950 acre-feet) of purified water in 2024. Since the beginning of 2025, about 1,841 acre-feet of purified water has been produced.  The purified water is blended with existing tertiary recycled water for South Bay Water Recycling Program customers