Santa Rosa, CA Water Quality Report
Is Santa Rosa tap water safe? See PFAS and lead contamination levels for Santa Rosa, California. Compare to EPA limits and get filter recommendations.
Quick Answers
Is Santa Rosa, CA tap water safe to drink? Current EPA data shows no PFAS detections for Santa Rosa, CA public water systems. Caveats apply: California utilities below the UCMR5 size threshold may never have been tested, and lead risk from pre-1986 plumbing is a separate question from PFAS.
What contaminants are in Santa Rosa, CA water? EPA UCMR5 tests 29 PFAS compounds plus 42+ regulated contaminants (lead, arsenic, nitrate, disinfection byproducts). The detailed table below shows every detection with comparison to EPA limits.
What filter should I use in Santa Rosa, CA? Match the filter to what's in California water: reverse osmosis handles PFAS, lead, and arsenic together (90%+ removal); NSF-53 certified pitchers like Clearly Filtered or ZeroWater cover taps you drink from. A standard Brita pitcher will not remove PFAS.
Santa Rosa, CA Water Quality Summary
Santa Rosa, CA water systems are not currently reported as having detected PFAS in recent EPA UCMR5 testing. This does not guarantee zero contamination – monitoring is ongoing and smaller systems may not be required to test. Check your specific ZIP code for the most detailed data.
Contamination Level: NONE – No PFAS detected in recent testing.
Lead in Santa Rosa, CA Water
EPA Lead and Copper Rule testing has recorded 104 lead samples for Santa Rosa water systems, with a 90th-percentile high of 0.022 mg/L (above the EPA 0.015 mg/L action level). There is no safe level of lead for children; if your home was built before 1986, a certified NSF/ANSI 53 lead-removal filter is recommended.
EPA Violations in Santa Rosa, CA
Santa Rosa public water systems have 58 health-based EPA Safe Drinking Water Act violations on record, including Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Nitrite, Surface Water Treatment Rule. Health-based violations mean a contaminant exceeded its federal limit or required treatment was not applied.
About the Data
These figures come from the EPA's Unregulated Contaminant Monitoring Rule 5 (UCMR5) testing program, 2023-2025. UCMR5 is the most comprehensive national drinking water survey in US history, covering 66,000+ public water systems. Population of Santa Rosa, CA: approximately 178,127.
ZIP Codes Served
What Santa Rosa, California Residents Should Do
- Enter your exact ZIP code at knowyourexposure.com for address-level data
- If anyone in your household is pregnant or under 5, prioritize a certified PFAS filter now and consider a home test kit
- For long-term protection, an NSF/ANSI 58 reverse osmosis system removes 94-99% of PFAS
- Read the Consumer Confidence Report (CCR) your California utility publishes each year