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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Jeffrey City 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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.790 ppb220.750 ppb - 0.830 ppb
2015ND10ND
2016ND10ND
20174.60 ppb114.60 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 Lab ID Result
2014-07-23C14070802-001A0.750 ppb
2014-09-22C14090803-001A0.830 ppb
2015-08-18C15080629-001AND
2016-07-31C16080007-001AND
2017-10-31C17100962-001A4.60 ppb