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National Drinking Water Database

Dibromoacetic acid in California

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 California

284 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
1Fcsa #30/El Porvenir
Three Rocks, CA
1301 of 119 ppb
(19 ppb)
2Venture Estates Mwc
Hollister, CA
532 of 214.05 ppb
(9.1 to 19 ppb)
3Ellwood Mutual Water Co.
Goleta, CA
1862 of 213 ppb
(12 to 14 ppb)
4Mesa Consolidated Wd
Costa Mesa, CA
108,7246 of 612.57 ppb
(8.1 to 21.2 ppb)
5City of Huron
Huron, CA
5,8604 of 512.54 ppb
(0 to 31 ppb)
6Winterhaven Wd
Winterhaven, CA
1,0509 of 912.05 ppb
(4.45 to 26.35 ppb)
7Jacumba Community Sd
Jacumba, CA
5003 of 311.37 ppb
(11 to 12.1 ppb)
8Coast Springs - Cal. Water Service (Puc)
Dillon Beach, CA
40021 of 2210.63 ppb
(0 to 19 ppb)
9Cathedral Woods Mutual Water
Scotts Valley, CA
481 of 110.3 ppb
(10.3 ppb)
10Harris Farms Camp C #501-523
Coalinga, CA
3001 of 19.9 ppb
(9.9 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 California

There are no violations reported for this contaminant in California