Water Quality in Concord, CA (94548)
EPA violation data for public water systems serving ZIP code 94548.
No Health-Based Violations
None of the 9 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.
832
Population
9
Water Systems
0
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (9)
Contra Costa Water District
Surface water 198,000 people served
0 violations
Lead tested: 3.1 ppb (limit: 15 ppb) ✓
City Of Antioch
Surface water 115,074 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Brentwood
Purchased surface water 64,513 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
City Of Pittsburg
Purchased surface water 62,500 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Knightsen Elementary School
Groundwater 350 people served
0 violations
Brentwood Marina
Groundwater 30 people served
0 violations
Mass Pheasant Club
Groundwater 25 people served
0 violations
Red Coach Deli
Groundwater 25 people served
0 violations
Gazelle Mobile Home Park
Groundwater 0
0 violations
Lead & Copper Levels
Lead (Pb)
Within limit3.1 ppb measured
Action level: 15 ppb
Sampled: Jan 2023
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.