Water Quality in Columbia, MD (21723)
EPA violation data for public water systems serving ZIP code 21723.
No Health-Based Violations
None of the 8 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.
669
Population
8
Water Systems
1
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (8)
Howard County D.P.W. Distribution
All resolvedEllicott City
Highs Of Cooksville
Woodmont Academy
Full Gospel Baptist Church
Bureau Of Highways Cooksville
Fire & Rescue Training Facility
Cooksville Carry Out
Contaminants Found
Annual water quality report delivery requirement.
How Does This Compare?
Columbia (21723) 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.