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States → 08

FORT BELKNAP AGENCY WATER SYSTEM

PWS ID: 083090041 · HARLEM, 08 59526

Population Served
2,100
Total Violations
575
Health-Based Violations
332
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Native American
Connections
432
School/Daycare
No
MCL Violations
175
Monitoring Violations
237
Treatment Tech Violations
157

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 145 2025
CARBON, TOTAL TT 88 2025
Surface Water Treatment Rule TT 55 2010
Surface Water Treatment Rule MR 51 2020
CARBON, TOTAL MR 40 2019
Total Haloacetic Acids (HAA5) MR 29 2019
TTHM MR 29 2019
Total Haloacetic Acids (HAA5) MCL 20 2014
Coliform (TCR) MR 18 2009
Interim Enhanced Surface Water Treatment Rule TT 14 2010
Coliform (TCR) MCL 10 2013
Chlorine MR 6 2010
DICHLOROMETHANE MR 4 2025
Interim Enhanced Surface Water Treatment Rule Other 3 2013
Nitrate MR 3 2008
o-Dichlorobenzene MR 2 2008
Vinyl chloride MR 2 2008
1,1-Dichloroethylene MR 2 2008
1,2-Dichloroethane MR 2 2008
1,2-Dichloropropane MR 2 2008
Trichloroethylene MR 2 2008
Tetrachloroethylene MR 2 2008
CHLOROBENZENE MR 2 2008
Benzene MR 2 2008
Toluene MR 2 2008
Ethylbenzene MR 2 2008
Carbon tetrachloride MR 2 2008
1,1,1-Trichloroethane MR 2 2008
cis-1,2-Dichloroethylene MR 2 2008
CYANIDE MR 2 2008
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.