Water Quality in Columbia, MD (21046)
EPA violation data for public water systems serving ZIP code 21046.
No Health-Based Violations
None of the 12 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are3 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 43% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
15,608
Population
12
Water Systems
3
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (12)
Howard County D.P.W. Distribution
All resolvedEllicott City
Allview Estates-Wittco Water C
Allview Estates-Wittco Water C
Glenwood Library
Glenwood Community Center
All resolvedWestern Regional Park
Western Regional Park Pavilion Well
Camp Wo Me To Main Office
Bay Motel
Camp Wo-Me-To Bathhouse
Pizza Hut And Lisbon Plaza
Contaminants Found
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
How Does This Compare?
Columbia (21046) has more violations than 43% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 3, 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.