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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Bear Valley Joint Authority

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

 

99

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND190ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
20190.188 ppb161ND - 3.00 ppb

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
2014-01-0714010615-004ND
2014-01-0714010615-001ND
2014-01-0714010615-002ND
2014-01-0714010615-003ND
2014-04-0814041219-001ND
2014-04-0814041219-004ND
2014-04-0814041219-002ND
2014-04-0814041219-003ND
2014-07-0814071184-001ND
2014-07-0814071184-004ND
2014-07-0814071184-002ND
2014-07-0814071184-003ND
2014-10-0714101404-001ND
2014-10-0714101404-004ND
2014-10-0714101404-003ND
2014-10-0714101404-002ND
2014-12-3014122777-003ND
2014-12-3014122777-002ND
2014-12-3014122777-001ND
2015-01-1212371184ND
2015-01-1212371151ND
2015-01-1212371173ND
2015-01-1212371162ND
2015-04-0712717950ND
2015-04-0712717960ND
2015-04-0712717956ND
2015-04-0712717947ND
2015-09-3013357765ND
2015-09-3013357748ND
2015-09-3013357772ND
2015-09-3013357746ND
2015-10-0713479888ND
2015-10-0713479873ND
2015-10-0713479897ND
2015-10-0713479869ND
2016-01-1213839205ND
2016-01-1213839191ND
2016-01-1213839185ND
2016-01-1213839172ND
2016-04-1214211959ND
2016-04-1214211978ND
2016-04-1214211967ND
2016-04-1214211954ND
2016-07-1214694638ND
2016-07-1214694628ND
2016-07-1214694610ND
2016-07-1214694619ND
2016-10-1115189913ND
2016-10-1115189947ND
2016-10-1115189937ND
2016-10-1115189926ND
2017-01-1015620571ND
2017-01-1015620590ND
2017-01-1015620588ND
2017-01-1015620563ND
2017-04-1116053046ND
2017-04-1116053047ND
2017-04-1116053029ND
2017-04-1116053060ND
2017-07-1116526533ND
2017-07-1116526550ND
2017-07-1116526524ND
2017-07-1116526540ND
2017-10-1016987491ND
2017-10-1016987504ND
2017-10-1016987519ND
2017-10-1016987509ND
2018-01-09(714) SP 714ND
2018-01-09(713) SP 713ND
2018-01-09(711) SP 711ND
2018-01-09(712) SP 712ND
2018-04-10(714) SP 714ND
2018-04-10(711) SP 711ND
2018-04-10(713) SP 713ND
2018-04-10(712) SP 712ND
2018-07-10(712) SP 712ND
2018-07-10(713) SP 713ND
2018-07-10(714) SP 714ND
2018-07-10(711) SP 711ND
2018-10-09(712) SP 712ND
2018-10-09AF99127ND
2018-10-09(711) SP 711ND
2018-10-09(713) SP 713ND
2019-01-08(713) SP 713ND
2019-01-08(712) SP 712ND
2019-01-08(714) SP 7143.00 ppb
2019-01-08(711) SP 711ND
2019-04-09(711) SP 711ND
2019-04-09(712) SP 712ND
2019-04-09(713) SP 713ND
2019-04-09(714) SP 714ND
2019-07-09(711) SP 711ND
2019-07-09(712) SP 712ND
2019-07-09(713) SP 713ND
2019-07-09(714) SP 714ND
2019-10-08(712) SP 712ND
2019-10-08(713) SP 713ND
2019-10-08(714) SP 714ND
2019-10-08(711) SP 711ND