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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Parker Little River Water System

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
20130.518 ppb42ND - 1.10 ppb
20140.860 ppb53ND - 1.60 ppb
20150.895 ppb42ND - 2.60 ppb
2016ND10ND
2017ND20ND

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
2012-04-04AH56029ND
2012-07-17AH70104ND
2012-10-16AH81880ND
2013-03-12AH905791.10 ppb
2013-05-02AI00341ND
2013-08-06AI092760.970 ppb
2013-10-07AI19999ND
2014-01-09AI26220ND
2014-04-08AI37323ND
2014-07-09AI451601.50 ppb
2014-07-09AI451591.20 ppb
2014-10-07AI568451.60 ppb
2015-01-23AI63333ND
2015-04-10AI745972.60 ppb
2015-07-10AI824890.980 ppb
2015-10-12AI92660ND
2016-02-10AJ06225ND
2017-05-11AJ55238ND
2017-08-14AJ63940ND