Water Quality in Napa, CA (94576)
EPA violation data for public water systems serving ZIP code 94576.
No Health-Based Violations
None of the 3 water systems serving this ZIP have any violations in the past 5 years.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
103
Population
3
Water Systems
0
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (3)
Napa, City Of
Surface water 84,804 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
American Canyon, City Of
Surface water 21,437 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Phelps Vineyards
Groundwater 19,412 people served
0 violations
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jan 2022
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.