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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Newton County Water System

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

60

Samples

0

Samples exceeding legal limit (MCL)

27

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.890 ppb106ND - 1.90 ppb
20150.541 ppb104ND - 1.70 ppb
20160.330 ppb103ND - 1.40 ppb
20170.205 ppb102ND - 1.10 ppb
20180.737 ppb106ND - 1.50 ppb
20190.456 ppb106ND - 1.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-01-27AI27204ND
2014-01-27AI27203ND
2014-04-29AI389171.60 ppb
2014-04-29AI389161.60 ppb
2014-05-08AI401691.10 ppb
2014-05-08AI401680.800 ppb
2014-07-29AI470771.90 ppb
2014-07-29AI470761.90 ppb
2014-10-29AI58523ND
2014-10-29AI58522ND
2015-01-29AI63700ND
2015-01-29AI63699ND
2015-03-13AI689990.710 ppb
2015-03-13AI689981.40 ppb
2015-04-28AI75695ND
2015-04-28AI75694ND
2015-07-28AI843411.70 ppb
2015-07-28AI843401.60 ppb
2015-10-30AJ00048ND
2015-10-30AJ00047ND
2016-01-26AJ04948ND
2016-01-26AJ04947ND
2016-03-17AJ083460.500 ppb
2016-03-17AJ08345ND
2016-04-26AJ10809ND
2016-04-26AJ10808ND
2016-07-25AJ195881.40 ppb
2016-07-25AJ195871.40 ppb
2016-10-25AJ32047ND
2016-10-25AJ32048ND
2017-01-25AJ43446ND
2017-01-25AJ43445ND
2017-04-27AJ54106ND
2017-04-27AJ54105ND
2017-06-05AJ565161.10 ppb
2017-06-05AJ565150.950 ppb
2017-07-25AJ61582ND
2017-07-25AJ61581ND
2017-10-25AJ72346ND
2017-10-25AJ72345ND
2018-01-23AJ76888ND
2018-01-23AJ76887ND
2018-04-25AJ88087ND
2018-04-25AJ88086ND
2018-05-08AJ891441.10 ppb
2018-05-08AJ891430.870 ppb
2018-07-24AJ951291.20 ppb
2018-07-24AJ951281.30 ppb
2018-10-23AK045841.40 ppb
2018-10-23AK045831.50 ppb
2019-01-24AK10000ND
2019-01-24AK09999ND
2019-04-24AK15699ND
2019-04-24AK15698ND
2019-05-06AK165611.20 ppb
2019-05-06AK165600.700 ppb
2019-07-16192603-020.630 ppb
2019-07-16192603-010.640 ppb
2019-10-21196501-010.690 ppb
2019-10-21196501-020.700 ppb