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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Carthage

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND30ND
20140.255 ppb21ND - 0.510 ppb
20150.415 ppb21ND - 0.830 ppb
20160.170 ppb41ND - 0.680 ppb
20170.405 ppb21ND - 0.810 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
2012-08-13AB81151ND
2013-01-15AB90038ND
2013-01-15AB90039ND
2013-08-19AC07126ND
2014-08-29AC33348ND
2014-08-29AC333490.510 ppb
2015-08-20AC57440ND
2015-08-20AC574410.830 ppb
2016-01-25AC65785ND
2016-01-25AC65786ND
2016-08-01AC79860ND
2016-08-01AC798610.680 ppb
2017-08-21AD03453ND
2017-08-21AD034540.810 ppb