Bromodichloromethane

Turkey Creek Water System

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.

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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	ND	4	0	ND
2015	ND	4	0	ND
2016	1.04 ppb	4	4	0.770 ppb - 1.30 ppb
2017	0.800 ppb	4	2	ND - 1.60 ppb
2018	0.850 ppb	4	2	ND - 1.70 ppb
2019	ND	4	0	ND

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
2014-08-12	1326981	ND
2014-08-12	1326980	ND
2014-08-12	1326981	ND
2014-08-12	1326980	ND
2015-08-11	1418991	ND
2015-08-11	1418991	ND
2015-08-11	1418992	ND
2015-08-11	1418992	ND
2016-08-08	1514707	0.770 ppb
2016-08-08	1514708	1.30 ppb
2016-08-08	1514708	1.30 ppb
2016-08-08	1514707	0.770 ppb
2017-08-01	35328002022	ND
2017-08-01	35328002022	ND
2017-08-01	35328002021	1.60 ppb
2017-08-01	35328002021	1.60 ppb
2018-08-02	35408814002	ND
2018-08-02	35408814001	1.70 ppb
2018-08-02	35408814001	1.70 ppb
2018-08-02	35408814002	ND
2019-08-23	35493011001	ND
2019-08-23	35493011002	ND
2019-08-23	35493011001	ND
2019-08-23	35493011002	ND