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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Mccurtain County Rural Water District #6 (kiamichi)

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

 

34

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.389 ppb162ND - 3.13 ppb
20150.355 ppb21ND - 0.710 ppb
20160.335 ppb82ND - 2.16 ppb
20170.168 ppb81ND - 1.34 ppb
2018ND80ND
2019ND80ND

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
2015-08-111508377ND
2015-08-1115083760.710 ppb
2016-02-101602385ND
2016-02-101602384ND
2016-06-071606144ND
2016-06-071606143ND
2016-08-1616085910.520 ppb
2016-08-161608592ND
2016-11-151611570ND
2016-11-1516115692.16 ppb
2017-02-281703021ND
2017-02-281703020ND
2017-05-241705605ND
2017-05-241705604ND
2017-08-151708596ND
2017-08-1517085951.34 ppb
2017-11-281711725ND
2017-11-281711724ND
2018-02-131802426ND
2018-02-131802425ND
2018-05-221805662ND
2018-05-221805661ND
2018-08-141808908ND
2018-08-141808907ND
2018-11-141811362ND
2018-11-141811361ND
2019-02-131902368ND
2019-02-131902367ND
2019-05-221905636ND
2019-05-221905635ND
2019-08-211908657ND
2019-08-211908656ND
2019-11-201911578ND
2019-11-201911579ND