Dibromochloromethane

Pomeroy City Of

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.440 ppb	6	4	ND - 0.780 ppb
2015	0.307 ppb	7	3	ND - 0.850 ppb
2016	0.240 ppb	5	2	ND - 0.650 ppb
2017	0.385 ppb	4	2	ND - 0.810 ppb
2018	0.832 ppb	5	4	ND - 1.89 ppb
2019	0.204 ppb	8	2	ND - 0.870 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
2014-06-02	98176	ND
2014-08-12	50326	0.540 ppb
2014-08-12	50318	0.780 ppb
2014-08-12	50320	0.560 ppb
2014-08-12	50324	0.760 ppb
2014-08-12	50322	ND
2015-07-07	62137	ND
2015-07-07	62136	ND
2015-08-24	64668	0.520 ppb
2015-08-24	64666	ND
2015-08-24	64664	ND
2015-08-24	64662	0.780 ppb
2015-08-24	64660	0.850 ppb
2016-08-08		0.550 ppb
2016-08-08		ND
2016-08-08		ND
2016-08-08		ND
2016-08-08		0.650 ppb
2017-08-15		0.810 ppb
2017-08-15		ND
2017-08-15		0.730 ppb
2017-08-15		ND
2018-08-06		0.650 ppb
2018-08-06		ND
2018-08-06		0.830 ppb
2018-08-06		0.790 ppb
2018-08-06		1.89 ppb
2019-07-08		ND
2019-07-08		ND
2019-07-08		ND
2019-08-26		ND
2019-08-26		ND
2019-08-26		ND
2019-08-26		0.760 ppb
2019-08-26		0.870 ppb