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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Eagle Mountain City

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

 

47

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20161.59 ppb1812ND - 7.60 ppb
20171.45 ppb85ND - 3.40 ppb
20185.50 ppb86ND - 24.8 ppb
20191.15 ppb136ND - 5.60 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 Result
2016-02-252.40 ppb
2016-02-251.90 ppb
2016-02-251.40 ppb
2016-02-252.80 ppb
2016-05-030.700 ppb
2016-05-03ND
2016-05-03ND
2016-05-030.800 ppb
2016-05-030.700 ppb
2016-06-07ND
2016-07-13ND
2016-07-13ND
2016-08-021.50 ppb
2016-08-022.40 ppb
2016-08-02ND
2016-08-024.30 ppb
2016-10-042.10 ppb
2016-10-047.60 ppb
2017-03-072.20 ppb
2017-03-072.10 ppb
2017-06-131.80 ppb
2017-06-13ND
2017-09-06ND
2017-09-06ND
2017-12-013.40 ppb
2017-12-012.10 ppb
2018-03-064.40 ppb
2018-03-062.80 ppb
2018-06-1924.8 ppb
2018-06-19ND
2018-09-128.50 ppb
2018-09-12ND
2018-12-041.90 ppb
2018-12-041.60 ppb
2019-03-190.600 ppb
2019-03-190.700 ppb
2019-05-160.900 ppb
2019-05-294.50 ppb
2019-06-04ND
2019-06-11ND
2019-06-14ND
2019-06-25ND
2019-09-10ND
2019-09-11ND
2019-09-11ND
2019-11-195.60 ppb
2019-12-172.70 ppb