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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Marshfield Water Department

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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

 

176

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND260ND
20150.0226 ppb311ND - 0.700 ppb
2016ND250ND
2017ND340ND
2018ND300ND
20190.113 ppb302ND - 1.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 Result
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-02-07ND
2014-03-25ND
2014-04-17ND
2014-04-29ND
2014-04-29ND
2014-04-29ND
2014-04-29ND
2014-04-29ND
2014-05-13ND
2014-08-06ND
2014-08-06ND
2014-08-06ND
2014-08-19ND
2014-10-10ND
2014-10-10ND
2014-10-10ND
2014-10-10ND
2014-11-06ND
2014-11-06ND
2015-02-26ND
2015-02-260.700 ppb
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-02-26ND
2015-03-13ND
2015-04-28ND
2015-05-14ND
2015-05-14ND
2015-05-14ND
2015-05-14ND
2015-05-14ND
2015-05-14ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-07ND
2015-08-07ND
2015-08-07ND
2015-08-07ND
2015-10-16ND
2015-12-07ND
2015-12-07ND
2015-12-07ND
2015-12-11ND
2016-01-13ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-02-18ND
2016-05-20ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-08-08ND
2016-08-08ND
2016-08-08ND
2016-08-08ND
2016-09-08ND
2016-09-08ND
2016-09-09ND
2016-11-30ND
2016-11-30ND
2016-11-30ND
2017-02-02ND
2017-02-02ND
2017-02-02ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-03-01ND
2017-03-01ND
2017-05-11ND
2017-05-15ND
2017-05-24ND
2017-05-24ND
2017-05-24ND
2017-05-24ND
2017-08-09ND
2017-08-09ND
2017-08-09ND
2017-08-09ND
2017-09-13ND
2017-09-13ND
2017-09-13ND
2017-09-13ND
2017-11-16ND
2017-11-16ND
2017-11-16ND
2017-11-16ND
2017-11-16ND
2017-11-17ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-16ND
2018-02-16ND
2018-02-16ND
2018-04-24ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-06-27ND
2018-08-13ND
2018-08-13ND
2018-08-13ND
2018-08-13ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-10-17ND
2018-11-15ND
2018-11-15ND
2018-11-15ND
2018-11-15ND
2018-11-15ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-03-01ND
2019-03-01ND
2019-03-01ND
2019-04-12ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-06-07ND
2019-08-27ND
2019-08-271.50 ppb
2019-08-271.90 ppb
2019-08-27ND
2019-09-05ND
2019-09-05ND
2019-09-05ND
2019-09-05ND
2019-10-22ND
2019-11-22ND
2019-11-22ND
2019-11-22ND
2019-11-22ND
2019-12-20ND