Water Quality in Santa Rosa, CA (94928)
EPA violation data for public water systems serving ZIP code 94928.
No Health-Based Violations
None of the 14 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are5 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 53% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
46,829
Population
14
Water Systems
5
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (14)
Santa Rosa, City Of
Petaluma, City Of
Rohnert Park, City Of
All resolvedSonoma State University
Graton Resort And Casino
Sonoma State U.-Fairfield Osborn Pres
Snider Community Water System
Terrace View Water System
Graton Mutual Water System
Branscomb Mobile Home Park
Lakeshore Apts
Rolling Oaks Road Association
Pace Supply
All resolvedVineyard View Village
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 (94928) has more violations than 53% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 5, 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.