Water Quality in Columbia, MD (21784)

EPA violation data for public water systems serving ZIP code 21784.

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

39,258

Population

71

Water Systems

14

Violations (5yr)

5

Health-Based

Location

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Water Systems Serving This Area (71)

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

City Of Westminster

Surface water 35,256 people served
0 violations

Freedom District

Surface water 24,867 people served
2 violations (5yr)

Springfield State Hospital

Surface water 6,500 people served
0 violations

Springfield Hospital Distribution

3 health-based
Purchased surface water 1,500 people served
4 violations (5yr) · 3 health-based · All resolved

Fairhaven Park-Sykesville Baseball

Groundwater 500 people served
0 violations

Gaither Manor Apartments

1 health-based
Groundwater 450 people served
3 violations (5yr) · 1 health-based

South Carroll Swim Club

Groundwater 425 people served
0 violations

Piney Run Park Tennis Court-Upper Comfor

Groundwater 300 people served
0 violations

Piney Run Park Nature Center

Groundwater 300 people served
0 violations

Winfield Inn

Groundwater 300 people served
0 violations

Piney Run Park Boat Dock-Lower Comfort

Groundwater 300 people served
0 violations

Winfield Vol. Fire Department

Groundwater 200 people served
0 violations

Maryland Mallet

Groundwater 200 people served
0 violations

Highs #91 - Sykesville

Groundwater 200 people served
0 violations

Burrier Queen Funeral Home

Groundwater 150 people served
0 violations

Messiah Lutheran Church And Nursery

Groundwater 140 people served
0 violations

Tender Learning Care-Sykesville

Groundwater 140 people served
0 violations

Annes Mhp

All resolved
Groundwater 110 people served
3 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Ebenezer Umc

Groundwater 100 people served
0 violations

Otzi Mediterranean Market & Entery

Groundwater 100 people served
0 violations

Bip-N-Bops Pizza Shop

Groundwater 100 people served
0 violations

Kingdom Hall Of Jehovahs Witnesses-Syke

Groundwater 100 people served
0 violations

Messiah Lutheran Church

Groundwater 80 people served
0 violations

Friendship Baptist Church

Groundwater 58 people served
0 violations

South Carroll Church Of Nazarene

Groundwater 54 people served
0 violations

Original Hawaiian Island Snowball

Groundwater 52 people served
0 violations

White Rock Umc

Groundwater 50 people served
0 violations

Ava Wanas Montessori School

Groundwater 45 people served
0 violations

Winfield Medical Center

Groundwater 44 people served
0 violations

Keelei Trailer Park

Groundwater 40 people served
0 violations

Keelei Trailer Park

Groundwater 40 people served
0 violations

Brandenburg Umc

1 health-based
Groundwater 40 people served
1 violation (5yr) · 1 health-based · All resolved

Sun Valley Assisted Living 1

Groundwater 34 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb)

Sun Valley Assisted Living 2 - Meadows

Groundwater 28 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

A.H. Renehan Co.

Groundwater 25 people served
0 violations

Exxon

Groundwater 25 people served
0 violations

Freedom Golf Center

Groundwater 25 people served
0 violations

American Legion-Sykesville (Connect Cws)

Groundwater 25 people served
0 violations

Dairymen

Groundwater 25 people served
0 violations

Messiah Lutheran Nursery

Groundwater 25 people served
0 violations

Suzie'S Bar

Groundwater 25 people served
0 violations

High'S-Sykesville (Klees Mill

Groundwater 25 people served
0 violations

Duke'S Place

Groundwater 25 people served
0 violations

Horses, Inc

Groundwater 25 people served
0 violations

Piney Run Country Park

Groundwater 25 people served
0 violations

Samis Dogs

Groundwater 25 people served
0 violations

St. Joseph'S Catholic Comm.

Groundwater 25 people served
0 violations

Little Georges Gaither

Groundwater 25 people served
0 violations

Baltimore Livestock Exchange

Groundwater 25 people served
0 violations

Summit Electric Co.

Groundwater 25 people served
0 violations

Little Georges Klee Mill

Groundwater 25 people served
0 violations

George'S Super Thrift

Groundwater 25 people served
0 violations

White Gates Guest Home

Groundwater 25 people served
0 violations

On A Roll

Groundwater 25 people served
0 violations

Mobile Menu

Groundwater 25 people served
0 violations

Relish Lane Auction

Groundwater 25 people served
0 violations

Carroll Insulation

Groundwater 20 people served
0 violations

Sun Valley At Morning Breeze

Groundwater 0
0 violations

New York J&P Pizza Eldersburg

Unknown 0
0 violations

Bethesda United Methodist Church

Groundwater 0
0 violations

Sun Valley At The Homestead

Groundwater 0
0 violations

Brinton Woods Nursing And Rehab Center

Groundwater 0
0 violations

Legacy School

Groundwater 0
0 violations

Sun Valley At The Woods

Groundwater 0
0 violations

St. James Umc

Groundwater 0
0 violations

Childrens Farm Nursery, Inc.

Groundwater 0
0 violations

Homestead Of Sun Valley Llc

Groundwater 0
0 violations

Pig N A Poke Restaurant

Groundwater 0
0 violations

Horses, Inc.

Groundwater 0
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
5 violations
Has active
TTHMHealth-Based
1 violation
All resolved
Total Haloacetic Acids (HAA5)Health-Based
1 violation
All resolved
NitrateHealth-Based

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

1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

2 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
Surface Water Treatment RuleMonitoring
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
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2022

How Does This Compare?

Columbia (21784) has more violations than 73% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 14.

Fewer violations 73th 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

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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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