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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Valencia Heights Water Company

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.

 

63

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20127.50 ppb96ND - 25.0 ppb
20135.55 ppb118ND - 13.0 ppb
20144.21 ppb118ND - 12.0 ppb
201511.6 ppb108ND - 28.0 ppb
20163.77 ppb118ND - 9.00 ppb
20171.29 ppb115ND - 7.10 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
2012-04-279588-800-08201.20 ppb
2012-04-279588-801-08054.70 ppb
2012-07-199588-012-0830ND
2012-07-199588-010-0815ND
2012-07-199588-005-0800ND
2012-07-279588-800-11459.70 ppb
2012-07-279588-801-11305.90 ppb
2012-10-269588-801-113521.0 ppb
2012-10-269588-800-115025.0 ppb
2013-01-289588-801-11558.50 ppb
2013-01-289588-800-12109.70 ppb
2013-04-249588-801-10458.90 ppb
2013-04-249588-800-105513.0 ppb
2013-07-099588-010-0735ND
2013-07-099588-005-0745ND
2013-07-099588-012-0755ND
2013-07-229588-800-15507.90 ppb
2013-07-229588-801-15355.80 ppb
2013-10-259588-800-11403.60 ppb
2013-10-259588-801-11253.60 ppb
2014-01-249588-801-11006.60 ppb
2014-01-249588-800-111512.0 ppb
2014-04-239588-801-10205.70 ppb
2014-04-239588-800-103511.0 ppb
2014-07-119588-005-1140ND
2014-07-119588-010-1105ND
2014-07-119588-012-1120ND
2014-07-249588-800-14255.20 ppb
2014-07-249588-801-14152.60 ppb
2014-10-279588-800-11151.60 ppb
2014-10-279588-801-11001.60 ppb
2015-01-289588-801-10457.60 ppb
2015-01-289588-800-110025.0 ppb
2015-04-239588-801-10156.30 ppb
2015-04-239588-800-103013.0 ppb
2015-07-169588-012-0730ND
2015-07-169588-010-0745ND
2015-07-279588-800-124028.0 ppb
2015-07-279588-801-122516.0 ppb
2015-10-289588-801-07303.10 ppb
2015-10-289588-800-074517.0 ppb
2016-01-259588-801-12555.00 ppb
2016-01-259588-800-13109.00 ppb
2016-04-069588-005-0810ND
2016-04-279588-801-10553.40 ppb
2016-04-279588-800-11104.30 ppb
2016-07-159588-012-0840ND
2016-07-159588-010-0830ND
2016-07-259588-801-12256.70 ppb
2016-07-259588-800-12406.30 ppb
2016-10-259588-801-12401.90 ppb
2016-10-259588-800-13004.90 ppb
2017-01-279588-801-10303.70 ppb
2017-01-279588-800-10457.10 ppb
2017-04-189588-005-0910ND
2017-04-259588-801-1235ND
2017-04-259588-800-1250ND
2017-07-129588-012-0840ND
2017-07-129588-010-0850ND
2017-07-259588-801-08201.10 ppb
2017-07-259588-800-08351.000 ppb
2017-10-279588-801-1040ND
2017-10-279588-800-10551.30 ppb