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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Midland-lonaconing

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND30ND
2016ND110ND
2017ND70ND
2018ND30ND
2019N/A00N/A

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
2014-05-050010018_03_04897ND
2014-05-050010018_02_04897ND
2015-05-11E15003488001ND
2015-05-11E15003488004ND
2015-05-11E15003488006ND
2016-01-20601024601_102ND
2016-01-20601024801_101ND
2016-04-04604158001_101ND
2016-04-04604158002_102ND
2016-04-26E16004051005ND
2016-04-26E16004051003ND
2016-04-26E16004051001ND
2016-07-11607047901_101ND
2016-07-11607047703_102ND
2016-10-24610029901_101ND
2016-10-2461002973_102ND
2017-01-24701224901_101ND
2017-04-067040350_101ND
2017-04-26E17004261007ND
2017-04-26E17004261001ND
2017-04-26E17004261005ND
2017-07-177070632_101ND
2017-07-177070632_102ND
2018-04-25E18003852006ND
2018-04-25E18003852004ND
2018-04-25E18003852001ND