Monthly Water Tracker
As of August 1, 2026
On May 19, 2026, the U.S. Bureau of Reclamation announced an increase in the 2026 south-of-delta Central Valley Project (CVP) allocation from 70% to 75% of historic Municipal and Industrial (M&I) use and from 20% to 25% of agricultural allocation. On May 14, 2026, the California Department of Water Resources increased the State Water Project (SWP) allocation from 30% to 45% of contract amount for 2026. Locally, there was no rainfall in July. Total storage in local reservoirs, with the exception of Anderson Reservoir, is near the historical average level for this time of year. Treated water deliveries were below average in June, and groundwater conditions remain healthy.
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Weather
- Rainfall in Santa Clara County
- Month of July, City of San José: 0 inches
- Rainfall year total = 0 inches (rainfall year is July 1 to June 30).
- San José average daily high temperature was 80.4 degrees Fahrenheit in July, which is lower than the five-year average for July (81.3 degrees Fahrenheit)
Local Reservoirs
Current local reservoir storage
- Total August 1 storage = 42,734 acre-feet
- No imported water was delivered into Calero Reservoir during July 2026
- Total estimated releases to streams (local and imported water) during July 2026 were 4,300 acre-feet (based on preliminary hydrologic data)
Groundwater
Groundwater conditions remain healthy throughout the county. Groundwater levels in most regional monitoring wells are lower compared to last month as normal, seasonal declines continue. While most water levels are lower relative to July 2025, most are the same as, or higher than, the prior five-year average for July. The end of 2026 groundwater storage is projected to be in the normal stage and greater than the Water Shortage Contingency Plan shortage stages
Imported Water
- In July (through July 31st), the SWP operated Banks pumping plant with an average daily export of 11,576 acre-feet, resulting in a total export of 358,862 acre-feet from the Sacramento-San Joaquin Delta for the month. This is the total amount pumped in July for the entire SWP to support the SWP allocation. Valley Water’s SWP contract provides Santa Clara County roughly 2.5% of the total amount of SWP water pumped south of the Delta in an average year
- In July (through July 31st), the CVP operated Jones pumping plant with an average daily export of 3,291 acre-feet, resulting in a total export of 102,035 acre-feet from the Sacramento-San Joaquin Delta for the month. This is the total amount pumped in July for the entire CVP to support the south-of-delta CVP allocation. Valley Water’s CVP contract provides Santa Clara County roughly 4.7% of the total amount of CVP water pumped south of the Delta in an average year
- 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 July
Click here to find the State-Wide Reservoir Storage map and table
Treated Water
- Below average demands of 9,845 acre-feet were delivered in July
- This total is 95% of the five-year average for the month of July
- Year-to-date deliveries are 40,386 acre-feet or 82% of the five-year average
Conserved Water
- Saved 87,392 acre-feet in FY25 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 July 2026 production = 2,189 acre-feet
- Estimated year-to-date through July = 9,793 acre-feet or 111% of the five-year average
- Silicon Valley Advanced Water Purification Center produced an estimated 1.4 billion gallons (4,387 acre-feet) of purified water in 2025. Since the beginning of 2026, about 2,743 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