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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Southern Manor M H P

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013N/A00N/A
20143.31 ppb42ND - 6.61 ppb
2015ND40ND
20164.19 ppb440.300 ppb - 8.07 ppb
2017ND40ND

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
2012-10-08AD71586ND
2012-10-08AD71586ND
2014-08-2613302416.61 ppb
2014-08-261330242ND
2014-08-2613302416.61 ppb
2014-08-261330242ND
2015-08-241422124ND
2015-08-241422123ND
2015-08-241422124ND
2015-08-241422123ND
2016-08-1715176380.300 ppb
2016-08-1715176378.07 ppb
2016-08-1715176378.07 ppb
2016-08-1715176380.300 ppb
2017-08-0335328344051ND
2017-08-0335328344050ND
2017-08-0335328344051ND
2017-08-0335328344050ND