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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Deerfield

NOTE: Deerfield purchases water from Highland Park which is required to test for bromoform. Sample information shown below was taken by Highland Park.

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND70ND
2014ND150ND
2015ND80ND
2016ND80ND
2017ND80ND

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

NOTE: Deerfield purchases water from Highland Park which is required to test for bromoform. Sample information shown below was taken by Highland Park.

Date Lab ID Result
2012-02-132022038-01ND
2012-05-142052378-01ND
2012-08-272084332-01ND
2012-11-282113562-01ND
2013-02-113021905-01ND
2013-05-133052393-01ND
2013-08-123082327-01ND
2013-11-133111978-02ND
2013-11-133111978-04ND
2013-11-133111978-03ND
2013-11-133111978-01ND
2014-02-124021754-03ND
2014-02-124021754-01ND
2014-02-124021754-02ND
2014-02-124021754-04ND
2014-05-124052360-02ND
2014-05-124052360-04ND
2014-05-124052360-03ND
2014-05-124052360-01ND
2014-08-114082961-04ND
2014-08-114082961-03ND
2014-08-114082961-02ND
2014-08-114082961-01ND
2014-11-124111943-03ND
2014-11-124111943-04ND
2014-11-124111943-01ND
2014-11-124111943-02ND
2015-02-095021979-01ND
2015-02-095021979-02ND
2015-05-115052268-01ND
2015-05-115052268-02ND
2015-08-115082610-02ND
2015-08-115082610-01ND
2015-11-095111991-01ND
2015-11-095111991-02ND
2016-02-086021947-01ND
2016-02-086021947-02ND
2016-05-096052040-02ND
2016-05-096052040-01ND
2016-08-086082394-010.555 ppb
2016-08-086082394-02ND
2016-11-146112791-02ND
2016-11-146112791-01ND
2017-02-137022670-011.13 ppb
2017-02-137022670-022.12 ppb
2017-05-087051479-01ND
2017-05-087051479-02ND
2017-08-147082817-01ND
2017-08-147082817-02ND
2017-11-137112261-01ND
2017-11-137112261-02ND