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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Silver Lake Water & Sewer District

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

 

104

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND120ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND280ND

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
2014-02-1306910ND
2014-02-1306911ND
2014-02-1306912ND
2014-02-1306909ND
2014-05-0819910ND
2014-05-0819907ND
2014-05-0819909ND
2014-05-0819908ND
2014-08-2838627ND
2014-08-2838624ND
2014-08-2838625ND
2014-08-2838626ND
2014-11-0649949ND
2014-11-0649948ND
2014-11-0649947ND
2014-11-0649946ND
2015-02-2408170ND
2015-02-2408172ND
2015-02-2408171ND
2015-02-2408169ND
2015-05-1321406ND
2015-05-1321408ND
2015-05-1321407ND
2015-05-1321405ND
2015-08-1036801ND
2015-08-1036803ND
2015-08-1036802ND
2015-08-1036800ND
2016-02-17ND
2016-02-17ND
2016-02-17ND
2016-02-17ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-08-11ND
2016-08-11ND
2016-08-11ND
2016-08-11ND
2016-11-09ND
2016-11-09ND
2016-11-09ND
2016-11-09ND
2017-02-09ND
2017-02-09ND
2017-02-09ND
2017-02-09ND
2017-05-15ND
2017-05-15ND
2017-05-15ND
2017-05-15ND
2017-08-09ND
2017-08-09ND
2017-08-09ND
2017-08-09ND
2017-11-16ND
2017-11-16ND
2017-11-16ND
2017-11-16ND
2018-02-15ND
2018-02-15ND
2018-02-15ND
2018-02-15ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-08-23ND
2018-08-23ND
2018-08-23ND
2018-08-23ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-05-17ND
2019-05-17ND
2019-05-17ND
2019-05-17ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-08-21ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-11-06ND
2019-12-05ND
2019-12-05ND
2019-12-05ND
2019-12-05ND