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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Wahpeton Water Supply

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

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
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
2014-01-142030322ND
2014-02-102034459ND
2014-03-172039719ND
2014-03-242042170ND
2014-04-082043825ND
2014-05-122052889ND
2014-06-102055880ND
2014-06-102055881ND
2014-07-152063192ND
2014-09-152081881ND
2014-12-162098192ND
2015-03-10OE219048ND
2015-06-08OE251750ND
2015-09-14OE292492ND
2015-12-08OE324563ND
2016-03-08OE352424ND
2016-06-07OE385841ND
2016-09-13OE427786ND
2016-12-12OE460669ND
2017-03-14OE490460ND
2017-06-13OE523566ND
2017-09-19OE566891ND
2017-12-12OE600087ND
2018-03-12OE632197ND
2018-06-12OE669139ND
2018-09-10OE710573ND
2018-12-11OE748818ND
2019-03-11OE779512ND
2019-06-18OE822571ND
2019-09-17OE866106ND
2019-12-10OE903620ND