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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Danville

Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

51

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND90ND
2016ND100ND
20171.25 ppb81ND - 10.00 ppb
2018ND80ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-1814079006901ND
2014-03-1814079007001ND
2014-05-1314135000501ND
2014-05-1314135000401ND
2014-08-1214226003401ND
2014-08-1214226003301ND
2014-11-1814324003601ND
2014-11-1814324004001ND
2015-03-0315063002301ND
2015-03-0315063002401ND
2015-03-1815078007601ND
2015-06-0315155008001ND
2015-06-0315155007901ND
2015-08-1915232003301ND
2015-08-1915232003201ND
2015-11-1015316001301ND
2015-11-1015316001401ND
2016-02-2216056002201ND
2016-02-2216056002301ND
2016-05-1716140000601ND
2016-05-1716140000401ND
2016-05-2516147010801ND
2016-05-2516147010701ND
2016-08-1516231005301ND
2016-08-1516231005401ND
2016-11-2116327000502ND
2016-11-2116327000702ND
2017-02-1317046002001ND
2017-02-1317046001801ND
2017-05-1617138005801ND
2017-05-1617138006001ND
2017-08-2817242003201ND
2017-08-2817242003301ND
2017-11-281733300240110.00 ppb
2017-11-2817333002301ND
2018-02-1318046003801ND
2018-02-1318046004001ND
2018-05-1418137003301ND
2018-05-1418137003501ND
2018-08-1418228007701ND
2018-08-1418228007801ND
2018-11-1218319010601ND
2018-11-1218319010501ND
2019-02-1819052002601ND
2019-02-1819052002401ND
2019-05-1419136006301ND
2019-05-1419136006401ND
2019-08-1219227007901ND
2019-08-1219227007801ND
2019-11-0519311010901ND
2019-11-0519311011101ND