Water Quality in Columbia, MD (21045)
EPA violation data for public water systems serving ZIP code 21045.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 7 monitoring/reporting violations.
More violations than 62% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
40,034
Population
8
Water Systems
8
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (8)
Howard County D.P.W. Distribution
All resolvedEllicott City
Cedar Mobile Home Park
All resolvedPine Crest Mobile Home Park
Camp Wamava
All resolvedSavage - Laurel Howard Co Dpw
Lisbon Volunteer Fire Department
1 health-basedSki Cove Condos (Connected To Cws)
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
How Does This Compare?
Columbia (21045) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.