Water Quality in Columbia, MD (21029)

EPA violation data for public water systems serving ZIP code 21029.

No Health-Based Violations

None of the 14 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.

13,607

Population

14

Water Systems

1

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (14)

Howard County D.P.W. Distribution

All resolved
Purchased surface water 286,158 people served
1 violation (5yr) · All resolved

Ellicott City

Purchased surface water 46,000 people served
0 violations

St Louis Church & School

Groundwater 475 people served
0 violations

Simpsonville-W R Grace And Co

Surface water 449 people served
0 violations

High'S - Clarksville

Groundwater 200 people served
0 violations

El Azteca

Groundwater 200 people served
0 violations

Medomak Campland #1

Groundwater 122 people served
0 violations

Medomak Campland #3

Groundwater 70 people served
0 violations

Gateway School

Groundwater 50 people served
0 violations

Clarksville Vol. Fire Dept.

Groundwater 25 people served
0 violations

Market Place Cafe

Groundwater 25 people served
0 violations

Breakfast Burgers & More

Groundwater 25 people served
0 violations

Pizza Hut - Clarksville

Groundwater 25 people served
0 violations

Rehms Catering

Groundwater 0
0 violations

Contaminants Found

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

How Does This Compare?

Columbia (21029) 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.

Fewer violations 29th percentile More violations

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.

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