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National Drinking Water Database

Monobromoacetic acid in Washington

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 Washington

14 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
1Carbonado Water Dept
Carbonado, WA
6301 of 34.53 ppb
(0 to 13.6 ppb)
2Warm Beach Conference Grounds
Mount Vernon, WA
5401 of 22 ppb
(0 to 4 ppb)
3Paradise Park Water System
Ferndale, WA
2001 of 11 ppb
(1 ppb)
4Rainier Tracts Water Assn
Othello, WA
611 of 10.7 ppb
(0.7 ppb)
5Eagle Cove Water Association
Friday Harbor, WA
603 of 100.58 ppb
(0 to 2.4 ppb)
6Cape San Juan Water District
Friday Harbor, WA
1411 of 30.53 ppb
(0 to 1.6 ppb)
7City of Ilwaco Water Department
Ilwaco, WA
8194 of 100.49 ppb
(0 to 1.5 ppb)
8Aleck Bay Park Water System
Lopez Island, WA
362 of 50.44 ppb
(0 to 1.2 ppb)
9San Juan Fairways Owners Assn
Friday Harbor, WA
351 of 30.37 ppb
(0 to 1.1 ppb)
10Hannah Heights Owners Association
Friday Harbor, WA
641 of 30.37 ppb
(0 to 1.1 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 Washington

There are no violations reported for this contaminant in Washington