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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Centralia Utilities

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.467 ppb32ND - 0.900 ppb
20130.800 ppb220.600 ppb - 1.000 ppb
20140.494 ppb166ND - 2.80 ppb
2015ND30ND
20160.200 ppb41ND - 0.800 ppb
20170.650 ppb21ND - 1.30 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 Lab ID Result
2012-07-24716560.500 ppb
2012-07-2471655ND
2012-07-24716570.900 ppb
2013-07-19726450.600 ppb
2013-07-19726461.000 ppb
2014-03-11734250.700 ppb
2014-03-1173423ND
2014-03-1173424ND
2014-03-11734261.70 ppb
2014-06-11736672.80 ppb
2014-06-1173666ND
2014-06-1173664ND
2014-06-1173665ND
2014-09-08741780.900 ppb
2014-09-08741801.30 ppb
2014-09-0874181ND
2014-09-0874179ND
2014-12-1174609ND
2014-12-1174606ND
2014-12-1174608ND
2014-12-11746070.500 ppb
2015-06-0875050ND
2015-06-0875051ND
2015-07-0275113ND
2016-06-06ND
2016-06-060.800 ppb
2016-07-19ND
2016-07-19ND
2017-06-061.30 ppb
2017-06-06ND