TapScore USA

Chloramine in Drinking Water

Reference information plus historical EPA compliance records associated with chloramine.

EPA Limit (MCL)

4000 ppb

EPA Goal (MCLG)

4000 ppb

Category

Disinfectant

Regulatory values are a concise reference, not legal or medical advice. Confirm the current standard and rule-specific details on EPA.gov.

Health Effects

Eye and nose irritation, stomach discomfort, anemia

Common Sources

Water additive used for disinfection

Treatment Considerations for Chloramine

Commonly cited treatment approaches include: Catalytic carbon filters. Choose treatment only after a certified water test identifies the substance and concentration; verify NSF/ANSI certification and consult a qualified local professional when needed.

13,879

Historical Violation Records

5,682

Systems With Records

Historical Chloramine Records by State

StateRecordsSystems
Pennsylvania3,7341,131
Washington1,936711
Alaska1,721326
Oregon646363
Connecticut475230
Arizona368179
Montana358185
Oklahoma338154
Colorado332203
Illinois329161
West Virginia325100
North Carolina312174
Ohio311202
Texas27690
Utah250134
Puerto Rico21890
Vermont195111
Virginia174104
Kentucky16999
New Hampshire166114

Systems With the Most Chloramine Violation Records

LAKE FOREST PARK WATER DISTRICT

3,171 served95 historical records
A

SEVEN ESTATES

189 served58 historical records
F

COAL MOUNTAIN WATER

80 served52 historical records
F

MARBLE WATER SYSTEM

94 served48 historical records
D

PINNACLE WATER ASSOCIATION

85 served45 historical records
F

NOTTINGHAM MANOR M H COURT

473 served42 historical records
C

FOREST PARK TC

175 served42 historical records
D

SPRINGDALE BORO WATER DEPT

3,405 served37 historical records
A

PA AMERICAN AUDUBON

8,200 served36 historical records
C

SUNRISE LAKES SEC 12

125 served31 historical records
C

Frequently Asked Questions

What is Chloramine and why can it appear in drinking-water records?

Chloramine can be associated with drinking water through: Water additive used for disinfection.

What reference value does this page show?

The summarized EPA Maximum Contaminant Level is 4000 ppb. Some substances use action levels or rule-specific thresholds instead, so verify the current EPA standard.

Does a historical violation record mean it is in my tap today?

No. A compliance record may be historical or resolved. Use the latest Consumer Confidence Report or a certified test for current local conditions.