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National Drinking Water Database

Monobromoacetic acid in Montana

Monobromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water. [read more]

The Most Polluted Communities in Montana

35 water utilities reported detecting Monobromoacetic acid in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Monobromoacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
1Rapelje Water Users Assn
Rapelje, MT
702 of 21.65 ppb
(1.5 to 1.8 ppb)
2Dry Prairie Rural Water Authority
1,1471 of 11.1 ppb
(1.1 ppb)
3Seeley Lake Water District
Seeley Lake, MT
1,5751 of 151.07 ppb
(0 to 16 ppb)
4Town of Froid
Froid, MT
1951 of 10.86 ppb
(0.86 ppb)
5Town of Bainville
Bainville, MT
1561 of 10.71 ppb
(0.71 ppb)
6Cut Bank North Water District
Santa Rita, MT
4781 of 10.69 ppb
(0.69 ppb)
7City of Malta
Malta, MT
2,3401 of 10.67 ppb
(0.67 ppb)
8North Valley County Water and Sewer Dist
St Marie, MT
2561 of 10.65 ppb
(0.65 ppb)
9Pryor Creek Water Assn
Huntley, MT
451 of 20.6 ppb
(0 to 1.2 ppb)
10Town of Melstone
Melstone, MT
1703 of 90.52 ppb
(0 to 2.2 ppb)

Health Based Limits for Monobromoacetic acid

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.60 ppb

Violation Summary for Monobromoacetic acid in Montana

There are no violations reported for this contaminant in Montana