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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Centralia Utilities

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

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND20ND
20140.169 ppb163ND - 1.000 ppb
2015ND30ND
20160.175 ppb41ND - 0.700 ppb
20170.700 ppb21ND - 1.40 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2012-07-2471656ND
2012-07-2471655ND
2012-07-2471657ND
2013-07-1972646ND
2013-07-1972645ND
2014-03-11734261.000 ppb
2014-03-1173423ND
2014-03-1173424ND
2014-03-11734250.800 ppb
2014-06-1173665ND
2014-06-1173666ND
2014-06-1173664ND
2014-06-11736670.900 ppb
2014-09-0874180ND
2014-09-0874179ND
2014-09-0874181ND
2014-09-0874178ND
2014-12-1174607ND
2014-12-1174606ND
2014-12-1174608ND
2014-12-1174609ND
2015-06-0875050ND
2015-06-0875051ND
2015-07-0275113ND
2016-06-06ND
2016-06-060.700 ppb
2016-07-19ND
2016-07-19ND
2017-06-061.40 ppb
2017-06-06ND