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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

City of McPherson

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.698 ppb440.560 ppb - 1.000 ppb
20140.465 ppb168ND - 1.40 ppb
20150.259 ppb166ND - 1.000 ppb
20160.505 ppb126ND - 1.60 ppb
20170.485 ppb21ND - 0.970 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
2013-11-12605822TF0.590 ppb
2013-11-12605821TF0.560 ppb
2013-11-12605820TF1.000 ppb
2013-11-12605823TF0.640 ppb
2014-02-1060166ND
2014-02-10601631.07 ppb
2014-02-1060164ND
2014-02-1060165ND
2014-05-05109789ND
2014-05-05109790ND
2014-05-05109791ND
2014-05-05109792ND
2014-08-111711910.600 ppb
2014-08-111711900.970 ppb
2014-08-111711891.30 ppb
2014-08-11171188ND
2014-11-172329240.870 ppb
2014-11-172329270.620 ppb
2014-11-172329250.610 ppb
2014-11-172329261.40 ppb
2015-02-09277249ND
2015-02-09277250ND
2015-02-092772511.000 ppb
2015-02-09277252ND
2015-05-04328656ND
2015-05-04328653ND
2015-05-043286550.610 ppb
2015-05-04328654ND
2015-08-10385792ND
2015-08-10385791ND
2015-08-103857900.580 ppb
2015-08-10385789ND
2015-11-164279090.500 ppb
2015-11-164279080.880 ppb
2015-11-16427907ND
2015-11-164279060.580 ppb
2016-02-22497253ND
2016-02-224972520.680 ppb
2016-02-224972511.60 ppb
2016-02-22497250ND
2016-05-165477141.000 ppb
2016-05-16547715ND
2016-05-16547717ND
2016-05-165477160.770 ppb
2016-08-15604068ND
2016-08-156040690.910 ppb
2016-08-156040701.10 ppb
2016-08-15604071ND
2017-08-21823964ND
2017-08-218239630.970 ppb