Tap Water Quality in Fresno, CA
Find out what's in your drinking water. Enter your ZIP code below for a detailed water quality report for Fresno, California.
Try 93721 for Fresno
Fresno Drinking Water Overview
Population: ~545,000 | Source: Groundwater wells and Kings River surface water
Fresno, in the heart of the Central Valley, has long relied on groundwater that has been affected by decades of intensive agriculture. Nitrate contamination from fertilizers is widespread, and legacy pesticides like DBCP and TCP have been detected in numerous wells. The city has been transitioning to surface water from the Kings River to reduce dependence on contaminated groundwater.
Common water quality concerns in Fresno
Nitrates from agriculture
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1,2,3-Trichloropropane (TCP)
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Arsenic
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DBCP
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What's in your Fresno water report
Contaminant levels
Every detected contaminant in your Fresno water system, compared to EPA limits and health guidelines.
Violation history
All EPA violations on record for water systems serving Fresno, including health-based and monitoring violations.
Water quality grade
An A through F grade based on violation history, contaminant levels, and health guideline comparisons.
Filter recommendations
Which type of water filter will actually remove the contaminants found in your specific water system.
Water quality in nearby cities
Check your Fresno water now
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