Water Quality in Columbia, MD (20759)

EPA violation data for public water systems serving ZIP code 20759.

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 5 monitoring/reporting violations.

More violations than 53% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

6,624

Population

15

Water Systems

6

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (15)

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

Highs-Fulton

Groundwater 250 people served
0 violations

Temple Isaiah Synagogue And Preschool

1 health-based
Groundwater 203 people served
5 violations (5yr) · 1 health-based · All resolved

Ledos Pizza

Groundwater 130 people served
0 violations

Calvary Umc

Groundwater 125 people served
0 violations

Konstantines Greek Taverna

Groundwater 87 people served
0 violations

Olivet United Methodist Church

Groundwater 77 people served
0 violations

St. Paul'S Lutheran Church

Groundwater 73 people served
0 violations

Fulton Station Shopping Strip

Groundwater 72 people served
0 violations

Evergreen Stables

Groundwater 42 people served
0 violations

Tasty Treats

Groundwater 25 people served
0 violations

Mauck'S Meat Market

Groundwater 25 people served
0 violations

Maple Lawn Farms

Groundwater 25 people served
0 violations

Evergreen Stables Farm Llc

Groundwater 0
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

1 violation
All resolved

How Does This Compare?

Columbia (20759) has more violations than 53% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6.

Fewer violations 53th percentile More violations

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

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

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.

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