Watsonville, California: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 37 community water systems serving 73,456+ residents. See violations, PFAS results, lead test results, and safety grades — free.
EPA data last updated: 2026-06-23
Is Watsonville Tap Water Safe to Drink?
Watsonville currently has 10 active health-based violations across 10 of its 37 water systems. Active violations mean affected systems may not meet federal safety standards. Check individual system reports below for details.
Watsonville Water Quality Overview
Watsonville, California is served by 37 community water systems providing water to approximately 73,456 residents. These systems draw from groundwater (34), surface water (1), surface water purchased (1), groundwater purchased (1) sources. 10 active health-based violations across Watsonville water systems require attention. Including monitoring and reporting violations, there are 229 total violations on record.
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All 37 water systems in Watsonville
Looking for water quality data across the whole state? See our full California tap water safety report covering California’s EPA-regulated water systems.
Watsonville Drinking Water: Frequently Asked Questions
Is Watsonville, California tap water safe to drink?
Watsonville currently has 10 active health-based violations across 10 of its 37 water systems. Active violations mean affected systems may not meet federal safety standards. Check individual system reports below for details.
How many water utilities serve Watsonville, California?
37 community water systems serve Watsonville, California, providing water to approximately 73,456 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Watsonville tap water have lead?
Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.
What contaminants have been found in Watsonville drinking water?
EPA violation records for Watsonville water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.
How do I find out which water company serves my address in Watsonville?
Enter your Watsonville ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).