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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

City of Aberdeen

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND50ND
2014ND80ND
2015ND80ND
2016ND80ND
2017ND90ND

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
2012-02-0871206ND
2012-05-2271456ND
2012-08-0671701ND
2012-11-0672093ND
2013-02-1272279ND
2013-05-1572469ND
2013-08-2072847ND
2013-11-1873188ND
2013-12-1373248ND
2014-02-2473381ND
2014-02-2473380ND
2014-05-1273582ND
2014-05-1273581ND
2014-08-1173973ND
2014-08-1173972ND
2014-11-1874538ND
2014-11-1874537ND
2015-02-0974740ND
2015-02-0974741ND
2015-05-0574961ND
2015-05-0574960ND
2015-08-1075281ND
2015-08-1075280ND
2015-11-1775683ND
2015-11-1775684ND
2016-02-01ND
2016-02-01ND
2016-05-03ND
2016-05-03ND
2016-08-04ND
2016-08-04ND
2016-11-14ND
2016-11-14ND
2017-02-14ND
2017-02-14ND
2017-05-09ND
2017-05-09ND
2017-05-09ND
2017-08-15ND
2017-08-15ND
2017-11-21ND
2017-11-21ND