Water Quality in Santa Rosa, CA (95436)
EPA violation data for public water systems serving ZIP code 95436.
No Health-Based Violations
None of the 23 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are6 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 57% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,821
Population
23
Water Systems
6
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (23)
Santa Rosa, City Of
Petaluma, City Of
Rohnert Park, City Of
All resolvedRussian River County Water District
Forestville Water District
All resolvedCazadero Water Company, Inc. (Puc)
All resolvedSereno Del Mar Water Company (Puc)
Heights Mutual Water Company
River Bend Resort
Russian River Vineyards & Restaurant
Hilton Mutual Water Company
Hilton Park Family Campground
Martinelli Ranch
Midway Rv Park
Pocket Canyon Cabins
Hilton Mutual Water Company
Assoc. Vintage Group-Mark West Winery
Rural Canyon Mutual Water Company
Massini Mutual Water Company
Hacienda Water Company
Camp Meeker Water Systems, Inc.
Hollydale Mutual Water Company
Redwood Water Company
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 2025
How Does This Compare?
Santa Rosa (95436) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6, 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.