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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Stoddard County Public Water Supply District 1

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.540 ppb110.540 ppb
20140.960 ppb110.960 ppb
20150.595 ppb21ND - 1.19 ppb
2016ND10ND
20170.700 ppb110.700 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
2012-10-16AB85685ND
2013-07-29AC042930.540 ppb
2014-08-12AC309050.960 ppb
2015-08-05AC544941.19 ppb
2015-10-21AC62029ND
2016-07-27AC79843ND
2017-07-26AD015840.700 ppb