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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

West Memorial Municipal Utility 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

 

32

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND60ND
20160.138 ppb81ND - 1.10 ppb
20170.300 ppb61ND - 1.80 ppb
20181.14 ppb51ND - 5.70 ppb
2019ND40ND

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
2014-08-18AC63957ND
2014-08-18AC64117ND
2014-12-03AC73551ND
2015-02-03AC78985ND
2015-02-03AC79024ND
2015-06-17AC96279ND
2015-08-11AD03581ND
2015-08-11AD03626ND
2015-11-10AD13129ND
2016-02-24AD25353ND
2016-02-24AD25360ND
2016-02-24AD25384ND
2016-05-17AD369961.10 ppb
2016-06-17AD41165ND
2016-09-16AD50022ND
2016-09-16AD50129ND
2016-12-14AD62162ND
2017-01-24AD66411ND
2017-04-17AD79737ND
2017-04-17AD797521.80 ppb
2017-04-17AD79760ND
2017-07-26AD90785ND
2017-10-25AE02425ND
2018-02-14AE13734ND
2018-06-04AE28456ND
2018-07-27AE34895ND
2018-07-27AE349475.70 ppb
2018-07-27AE34955ND
2019-05-15AE66542ND
2019-05-15AE66439ND
2019-05-15AE66442ND
2019-05-15AE66550ND