Bromoform

JBMDL-Dix Main System

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

100

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	20	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
2014-02-04	A16108	ND
2014-02-04	A16107	ND
2014-02-04	A16130	ND
2014-02-04	A16109	ND
2014-05-06	A16569	ND
2014-05-06	A16570	ND
2014-05-06	A16573	ND
2014-05-06	A16571	ND
2014-08-05	A17175	ND
2014-08-05	A17212	ND
2014-08-05	A17211	ND
2014-08-05	A17177	ND
2014-11-04	A17758	ND
2014-11-04	A17755	ND
2014-11-04	A17757	ND
2014-11-04	17756	ND
2015-02-03	A18374	ND
2015-02-03	A18373	ND
2015-02-03	A18376	ND
2015-02-03	A18377	ND
2015-05-06	D8048	ND
2015-05-06	D8050	ND
2015-05-06	D8049	ND
2015-05-06	D8051	ND
2015-08-05	A19589	ND
2015-08-05	A19588	ND
2015-08-05	A19587	ND
2015-08-05	A19590	ND
2015-11-04	A20191	ND
2015-11-04	A20213	ND
2015-11-04	A20214	ND
2015-11-04	A20199	ND
2016-02-03	A20815	ND
2016-02-03	A20812	ND
2016-02-03	A20814	ND
2016-02-03	A20813	ND
2016-05-04	A21429	ND
2016-05-04	A21430	ND
2016-05-04	A21451	ND
2016-05-04	A21452	ND
2016-08-03	A22143	ND
2016-08-03	A22141	ND
2016-08-03	A22145	ND
2016-08-03	A22142	ND
2016-11-02	A22757	ND
2016-11-02	A22726	ND
2016-11-02	A22727	ND
2016-11-02	A22759	ND
2017-02-01	A23236	ND
2017-02-01	A23233	ND
2017-02-01	A23234	ND
2017-02-01	A23237	ND
2017-05-03	A23888	ND
2017-05-03	A23889	ND
2017-05-03	A23886	ND
2017-05-03	A23887	ND
2017-08-02	A24523	ND
2017-08-02	A24520	ND
2017-08-02	A24546	ND
2017-08-02	A24521	ND
2017-11-01	A25131	ND
2017-11-01	A25130	ND
2017-11-01	A25117	ND
2017-11-01	A25116	ND
2018-02-01	A25667	ND
2018-02-01	A25653	ND
2018-02-01	A25642	ND
2018-02-01	A25668	ND
2018-05-02	A26194	ND
2018-05-02	A26234	ND
2018-05-02	A26242	ND
2018-05-02	A26197	ND
2018-08-01	A26850	ND
2018-08-01	A26852	ND
2018-08-01	A26832	ND
2018-08-01	A26851	ND
2018-11-01	A27514	ND
2018-11-01	A27517	ND
2018-11-01	A27518	ND
2018-11-01	A27538	ND
2019-02-01	A28099	ND
2019-02-01	A28098	ND
2019-02-01	A28068	ND
2019-02-01	A28067	ND
2019-05-01	A28580	ND
2019-05-01	A28577	ND
2019-05-01	A28576	ND
2019-05-01	A28578	ND
2019-05-23	A28695	ND
2019-05-23	A28704	ND
2019-05-23	A28705	ND
2019-05-23	A28703	ND
2019-08-01	A29195	ND
2019-08-01	A29193	ND
2019-08-01	A29192	ND
2019-08-07	A29194	ND
2019-11-01	A29882	ND
2019-11-01	A29881	ND
2019-11-01	A29883	ND
2019-11-01	A29873	ND