Water Quality in Columbia, MD (21794)
EPA violation data for public water systems serving ZIP code 21794.
No Health-Based Violations
None of the 16 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.
2,192
Population
16
Water Systems
1
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (16)
Howard County D.P.W. Distribution
All resolvedEllicott City
Howard County Fair Main Exhibit Hall
Howard County Fair Exhibit Hall 1
Howard County Fairgrounds - Poultry Bld
Howard County Fair Wash Racks- Well #5
Howard County Fair 4h Hall
Howard County Fair (Office)
Highs West Friendship
Fox Valley Swimming Pool
Nixons Farm
St. James Um Church
Howard County Fair Poultry Building
Bay Food Market
Friendship Pride
West Friendship Vol. Fire Dept.
Contaminants Found
Annual water quality report delivery requirement.
How Does This Compare?
Columbia (21794) 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.