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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Clearbrooke Estates Pump 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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND20ND
2016ND20ND
2017ND30ND
2018ND30ND
2019ND20ND

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
2014-04-15S479172ND
2014-08-26S588720ND
2014-08-26S588722ND
2015-08-20S614713ND
2015-08-20S614714ND
2016-08-09S670427ND
2016-08-09S670428ND
2017-04-20S730803ND
2017-08-29S737126ND
2017-08-29S737130ND
2018-08-30S812123ND
2018-08-30S812127ND
2018-08-30S812128ND
2019-08-21S865032ND
2019-08-21S865036ND