Water Quality in Columbia, CA (95310)
EPA violation data for public water systems serving ZIP code 95310.
No Health-Based Violations
None of the 17 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There is1 monitoring/reporting violation (missed testing deadlines), all resolved.
Better than 29% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,356
Population
17
Water Systems
1
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (17)
Columbia Junior College
Cdpr Four Rivers District-San Luis Creek
Cdpr Four Rivers District-Basalt
Cdpr-Hatfield
Calaveras Big Trees Sp, North Grove
Cdpr-Mcconnell
Csp Caswell State Park
Marble Quarry Resort
Cdpr-Sector Wide Potable Water Tanks
49er Trailer Ranch
All resolvedCalaveras Big Trees Sp, Oak Hollow
Indian Grinding Rock-Calaveras District
Lake Alpine Rec. Area
Antonio'S Bar & Grill
W.J. Covington
Cdpr-Medeiros
Cdpr-Dinosaur Point
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
How Does This Compare?
Columbia (95310) has more violations than 29% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 1, 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.