Water Quality in Santa Rosa, CA (94931)
EPA violation data for public water systems serving ZIP code 94931.
No Health-Based Violations
None of the 7 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are2 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 36% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
9,487
Population
7
Water Systems
2
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (7)
Santa Rosa, City Of
Petaluma, City Of
Rohnert Park, City Of
All resolvedCotati, City Of
Madrone Mutual Water Company
Washoe Creek Golf Course
Karah Estate Winery
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
Santa Rosa (94931) has more violations than 36% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 2, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.