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National Drinking Water Database

Dibromoacetic acid in Washington

Dibromoacetic 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

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

Ranked by highest average Dibromoacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
1Eagle Cove Water Association
Friday Harbor, WA
6010 of 1011.98 ppb
(5.9 to 16.6 ppb)
2Aleck Bay Park Water System
Lopez Island, WA
365 of 510.52 ppb
(6.2 to 16.9 ppb)
3Cape San Juan Water District
Friday Harbor, WA
1412 of 39.57 ppb
(0 to 17 ppb)
4Hannah Heights Owners Association
Friday Harbor, WA
642 of 38.6 ppb
(0 to 14.8 ppb)
5Sierra Country Club
Coupeville, WA
4881 of 17 ppb
(7 ppb)
6Valley High Park
Oak Harbor, WA
1412 of 26.5 ppb
(6 to 7 ppb)
7Camano Vista Water District
Camano Island, WA
4692 of 26.1 ppb
(2 to 10.2 ppb)
8Rainier Tracts Water Assn
Othello, WA
611 of 16 ppb
(6 ppb)
9Mountain View Water Association
Ferndale, WA
1861 of 15.6 ppb
(5.6 ppb)
10Shirona Water System
Oak Harbor, WA
2301 of 15.5 ppb
(5.5 ppb)

Health Based Limits for Dibromoacetic 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 Dibromoacetic acid in Washington

There are no violations reported for this contaminant in Washington