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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Spv Water Company

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND30ND
20171.30 ppb31ND - 3.90 ppb
2018ND30ND
2019ND30ND

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 Lab ID Result
2014-01-085867-002-1110ND
2014-01-085867-003-1045ND
2015-01-145867-002-1220ND
2015-01-145867-003-1155ND
2016-01-135867-003-1045ND
2016-01-205867-002-1040ND
2016-01-205867-004-1030ND
2017-01-115867-002-10553.90 ppb
2017-01-115867-003-1040ND
2017-01-115867-004-1100ND
2018-01-105867-002-1120ND
2018-01-105867-003-1040ND
2018-01-105867-004-1110ND
2019-01-095867-002-1109ND
2019-01-095867-003-1043ND
2019-01-095867-004-1105ND