Dibromochloromethane

Indianola Water Supply

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	0.0438 ppb	16	1	ND - 0.700 ppb
2015	ND	2	0	ND
2016	ND	2	0	ND
2017	ND	2	0	ND
2018	ND	2	0	ND
2019	ND	2	0	ND

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
2014-01-08	2027082	ND
2014-01-08	2027083	ND
2014-01-08	2027084	ND
2014-01-08	2027081	ND
2014-04-09	2045391	ND
2014-04-09	2045392	ND
2014-04-09	2045393	ND
2014-04-09	2045394	ND
2014-07-15	2065490	ND
2014-07-15	2065492	ND
2014-07-15	2065491	ND
2014-07-15	2065489	ND
2014-10-13	2086355	ND
2014-10-13	2086354	ND
2014-10-13	2086353	0.700 ppb
2014-10-13	2086352	ND
2015-07-01	1G50025-02	ND
2015-07-01	1G50025-01	ND
2016-07-19	1G61365-02	ND
2016-07-19	1G61365-01	ND
2017-07-18	1G71213-01	ND
2017-07-18	1G71213-02	ND
2018-07-05	1G80196-01	ND
2018-07-05	1G80196-02	ND
2019-07-17	1G91505-01	ND
2019-07-17	1G91505-02	ND