Water Quality in Concord, CA (94517)
EPA violation data for public water systems serving ZIP code 94517.
No Health-Based Violations
None of the 11 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.
12,316
Population
11
Water Systems
2
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (11)
Contra Costa Water District
City Of Antioch
Brentwood
City Of Pittsburg
Brannan Island State Rec. Area
All resolvedClayton Palms Water
Mount Diablo State Park
Concord Mt Diablo Trailride Assoc.
Gateway Mobile Home Park
Evergreen Motel & Mhp
Broken Wheel
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
Concord (94517) 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.