Bromoform

Clearfield Municipal Authority

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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	Range of results
2013	N/A	0	N/A
2014	ND	16	ND
2015	ND	16	ND
2016	ND	16	ND
2017	ND	16	ND
2018	ND	16	ND
2019	ND	16	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-02-12	(703) Old 43	ND
2014-02-12	(700) Old 43	ND
2014-02-12	(701) Old 43	ND
2014-02-12	(702) Old 40	ND
2014-05-12	4E20097-01	ND
2014-05-12	4E20097-04	ND
2014-05-12	4E20097-02	ND
2014-05-12	4E20097-03	ND
2014-08-13	(700) Old 43	ND
2014-08-13	(703) Old 43	ND
2014-08-13	(702) Old 40	ND
2014-08-13	(701) Old 43	ND
2014-11-12	(702) Old 40	ND
2014-11-12	(703) Old 43	ND
2014-11-12	(701) Old 43	ND
2014-11-12	(700) Old 43	ND
2015-02-12	12466728	ND
2015-02-12	12466712	ND
2015-02-12	12466700	ND
2015-02-12	12466708	ND
2015-05-13	12824804	ND
2015-05-13	12824800	ND
2015-05-13	12824784	ND
2015-05-13	12824792	ND
2015-08-12	13208637	ND
2015-08-12	13208646	ND
2015-08-12	13208653	ND
2015-08-12	13208629	ND
2015-11-11	13582041	ND
2015-11-11	13582029	ND
2015-11-11	13582051	ND
2015-11-11	13582019	ND
2016-02-11	13935967	ND
2016-02-11	13935958	ND
2016-02-11	13935946	ND
2016-02-11	13935978	ND
2016-05-12	14341129	ND
2016-05-12	14341113	ND
2016-05-12	14341137	ND
2016-05-12	14341121	ND
2016-08-12	14836971	ND
2016-08-12	14836958	ND
2016-08-12	14836983	ND
2016-08-12	14836970	ND
2016-11-11	15310456	ND
2016-11-11	15310449	ND
2016-11-11	15310443	ND
2016-11-11	15310434	ND
2017-02-10	15735206	ND
2017-02-10	15735213	ND
2017-02-10	15735195	ND
2017-02-10	15735227	ND
2017-05-11	16188770	ND
2017-05-11	16188773	ND
2017-05-11	16188755	ND
2017-05-11	16188785	ND
2017-08-11	16660486	ND
2017-08-11	16660482	ND
2017-08-11	16660479	ND
2017-08-11	16660492	ND
2017-11-13	17103476	ND
2017-11-13	17103466	ND
2017-11-13	17103452	ND
2017-11-13	17103478	ND
2018-02-13	(702) Old 40	ND
2018-02-13	(703) Old 43	ND
2018-02-13	(701) Old 43	ND
2018-02-13	(700) Old 43	ND
2018-05-09	(700) Old 43	ND
2018-05-09	(701) Old 43	ND
2018-05-09	(702) Old 40	ND
2018-05-09	(703) Old 43	ND
2018-08-09	(701) Old 43	ND
2018-08-09	(700) Old 43	ND
2018-08-09	(702) Old 40	ND
2018-08-09	(703) Old 43	ND
2018-11-09	8K20052-02	ND
2018-11-09	8K20052-03	ND
2018-11-09	8K20052-01	ND
2018-11-09	8K20052-04	ND
2019-02-15	(703) Old 43	ND
2019-02-15	(702) Old 40	ND
2019-02-15	(701) Old 43	ND
2019-02-15	(700) Old 43	ND
2019-05-09	(700) Old 43	ND
2019-05-09	(701) Old 43	ND
2019-05-09	(702) Old 40	ND
2019-05-09	(703) Old 43	ND
2019-08-13	(700) Old 43	ND
2019-08-13	(701) Old 43	ND
2019-08-13	(702) Old 40	ND
2019-08-13	(703) Old 43	ND
2019-11-12	9K13181-01	ND
2019-11-12	9K13181-04	ND
2019-11-12	9K13181-03	ND
2019-11-12	9K13181-02	ND