Bromoform

Arlington Heights

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

140

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	0.208 ppb	16	5	ND - 0.726 ppb
2015	0.332 ppb	16	5	ND - 1.59 ppb
2016	ND	16	0	ND
2017	ND	28	0	ND
2018	ND	32	0	ND
2019	ND	32	0	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
2014-02-11	4021752-01	ND
2014-02-11	4021752-02	ND
2014-02-11	4021752-03	ND
2014-02-11	4021752-04	ND
2014-05-07	4051314-01	0.628 ppb
2014-05-07	4051314-02	0.688 ppb
2014-05-07	4051314-03	0.682 ppb
2014-05-07	4051314-04	0.726 ppb
2014-08-06	4081474-01	ND
2014-08-06	4081474-02	ND
2014-08-06	4081474-03	ND
2014-08-06	4081474-04	0.599 ppb
2014-11-13	4111946-01	ND
2014-11-13	4111946-02	ND
2014-11-13	4111946-03	ND
2014-11-13	4111946-04	ND
2015-02-11	5021960-01	ND
2015-02-11	5021960-02	ND
2015-02-11	5021960-03	1.05 ppb
2015-02-11	5021960-04	ND
2015-05-13	5052279-01	ND
2015-05-13	5052279-02	ND
2015-05-13	5052279-03	ND
2015-05-13	5052279-04	ND
2015-08-05	5081121-01	0.610 ppb
2015-08-05	5081121-02	1.48 ppb
2015-08-05	5081121-03	0.597 ppb
2015-08-05	5081121-04	1.59 ppb
2015-11-04	5111032-01	ND
2015-11-04	5111032-02	ND
2015-11-04	5111032-03	ND
2015-11-04	5111032-04	ND
2016-02-10	6021963-01	ND
2016-02-10	6021963-02	ND
2016-02-10	6021963-03	ND
2016-02-10	6021963-04	ND
2016-05-04	6050963-01	ND
2016-05-04	6050963-02	ND
2016-05-04	6050963-03	ND
2016-05-04	6050963-04	ND
2016-08-03	6081069-01	ND
2016-08-03	6081069-02	ND
2016-08-03	6081069-03	ND
2016-08-03	6081069-04	ND
2016-11-02	6110695-01	ND
2016-11-02	6110695-02	ND
2016-11-02	6110695-03	ND
2016-11-02	6110695-04	ND
2017-02-01	7020439-01	ND
2017-02-01	7020439-02	ND
2017-02-01	7020439-03	ND
2017-02-01	7020439-04	ND
2017-05-17	7053024-01	ND
2017-05-17	7053024-02	ND
2017-05-17	7053024-03	ND
2017-05-17	7053024-04	ND
2017-05-17	7053024-05	ND
2017-05-17	7053024-06	ND
2017-05-17	7053024-07	ND
2017-05-17	7053024-08	ND
2017-08-09	7082237-01	ND
2017-08-09	7082237-02	ND
2017-08-09	7082237-03	ND
2017-08-09	7082237-04	ND
2017-08-09	7082237-05	ND
2017-08-09	7082237-06	ND
2017-08-09	7082237-07	ND
2017-08-09	7082237-08	ND
2017-11-02	1711213-001A	ND
2017-11-02	1711213-002A	ND
2017-11-02	1711213-003A	ND
2017-11-02	1711213-004A	ND
2017-11-02	1711213-005A	ND
2017-11-02	1711213-006A	ND
2017-11-02	1711213-007A	ND
2017-11-02	1711213-008A	ND
2018-02-01	1802069-001A	ND
2018-02-01	1802069-002A	ND
2018-02-01	1802069-003A	ND
2018-02-01	1802069-004A	ND
2018-02-01	1802069-005A	ND
2018-02-01	1802069-006A	ND
2018-02-01	1802069-007A	ND
2018-02-01	1802069-008A	ND
2018-05-03	1805300-001A	ND
2018-05-03	1805300-002A	ND
2018-05-03	1805300-003A	ND
2018-05-03	1805300-004A	ND
2018-05-03	1805300-005A	ND
2018-05-03	1805300-006A	ND
2018-05-03	1805300-007A	ND
2018-05-03	1805300-008A	ND
2018-08-01	1808048-001A	ND
2018-08-01	1808048-002A	ND
2018-08-01	1808048-003A	ND
2018-08-01	1808048-004A	ND
2018-08-01	1808048-005A	ND
2018-08-01	1808048-006A	ND
2018-08-01	1808048-007A	ND
2018-08-01	1808048-008A	ND
2018-11-07	1811565-001A	ND
2018-11-07	1811565-002A	ND
2018-11-07	1811565-003A	ND
2018-11-07	1811565-004A	ND
2018-11-07	1811565-005A	ND
2018-11-07	1811565-006A	ND
2018-11-07	1811565-007A	ND
2018-11-07	1811565-008A	ND
2019-02-06	1902409-001A	ND
2019-02-06	1902409-002A	ND
2019-02-06	1902409-003A	ND
2019-02-06	1902409-004A	ND
2019-02-06	1902409-005A	ND
2019-02-06	1902409-006A	ND
2019-02-06	1902409-007A	ND
2019-02-06	1902409-008A	ND
2019-05-01	1905064-001A	ND
2019-05-01	1905064-002A	ND
2019-05-01	1905064-003A	ND
2019-05-01	1905064-004A	ND
2019-05-01	1905064-005A	ND
2019-05-01	1905064-006A	ND
2019-05-01	1905064-007A	ND
2019-05-01	1905064-008A	ND
2019-08-07	1908588-001A	ND
2019-08-07	1908588-002A	ND
2019-08-07	1908588-003A	ND
2019-08-07	1908588-004A	ND
2019-08-07	1908588-005A	ND
2019-08-07	1908588-006A	ND
2019-08-07	1908588-007A	ND
2019-08-07	1908588-008A	ND
2019-11-06	1911436-001A	ND
2019-11-06	1911436-002A	ND
2019-11-06	1911436-003A	ND
2019-11-06	1911436-004A	ND
2019-11-06	1911436-005A	ND
2019-11-06	1911436-006A	ND
2019-11-06	1911436-007A	ND
2019-11-06	1911436-008A	ND