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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Woodland-davis Clean Water Agency

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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

 

53

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20160.244 ppb92ND - 1.20 ppb
20170.0688 ppb161ND - 1.10 ppb
2018ND160ND
2019ND120ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2016-05-245810-002-1055ND
2016-07-135810-002-0930ND
2016-07-155810-002-1027ND
2016-08-195810-002-13151.000 ppb
2016-09-165810-002-13151.20 ppb
2016-10-145810-002-1200ND
2016-11-095810-002-1158ND
2016-11-095810-002-1200ND
2016-12-145810-002-1112ND
2017-01-115810-002-1054ND
2017-01-125810-002-1030ND
2017-02-085810-002-1046ND
2017-03-085810-002-1126ND
2017-04-125810-002-1045ND
2017-05-105810-002-1130ND
2017-05-125810-002-1110ND
2017-06-155810-002-1117ND
2017-07-125810-002-1202ND
2017-07-135810-002-16301.10 ppb
2017-08-145810-002-1045ND
2017-09-135810-002-1001ND
2017-10-115810-002-1153ND
2017-10-135810-002-1201ND
2017-11-085810-002-1130ND
2017-12-135810-002-1032ND
2018-01-095810-002-1204ND
2018-01-095810-002-1059ND
2018-02-145810-002-1112ND
2018-03-195810-002-1400ND
2018-04-115810-002-1034ND
2018-05-095810-002-1030ND
2018-05-095810-002-1100ND
2018-06-135810-002-1124ND
2018-07-115810-002-1050ND
2018-07-115810-002-1341ND
2018-08-085810-002-1121ND
2018-09-125810-002-1035ND
2018-10-105810-002-1045ND
2018-10-105810-002-1115ND
2018-11-145810-002-1200ND
2018-12-125810-002-1040ND
2019-01-095810-002-1021ND
2019-01-095810-002-1040ND
2019-02-135810-002-1220ND
2019-04-105810-002-1155ND
2019-05-085810-002-1111ND
2019-06-205810-002-0928ND
2019-07-105810-002-1130ND
2019-08-215810-002-1300ND
2019-09-095810-002-0940ND
2019-10-095810-002-1150ND
2019-11-065810-002-1024ND
2019-12-165810-002-0950ND