Bromoform

Brockport Village

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	Detections	Range of results
2013	N/A	0	0	N/A
2014	1.18 ppb	12	10	ND - 2.40 ppb
2015	0.547 ppb	16	9	ND - 1.50 ppb
2016	0.744 ppb	16	8	ND - 1.90 ppb
2017	0.794 ppb	16	15	ND - 1.50 ppb
2018	0.280 ppb	16	7	ND - 0.730 ppb
2019	0.341 ppb	16	8	ND - 0.820 ppb

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
2014-05-14	1406674-003	1.70 ppb
2014-05-14	1406674-001	1.70 ppb
2014-05-14	1406674-002	1.70 ppb
2014-05-14	1406674-004	1.70 ppb
2014-08-13	1412765C	0.560 ppb
2014-08-13	1412765A	0.760 ppb
2014-08-13	1412765B	0.700 ppb
2014-08-13	1412765W	0.580 ppb
2014-11-12	1418695A	2.40 ppb
2014-11-12	1418695D	ND
2014-11-12	1418659B	ND
2014-11-12	1418695C	2.30 ppb
2015-02-11	1501875C	ND
2015-02-11	1501875D	ND
2015-02-11	1501875A	ND
2015-02-11	1501875B	ND
2015-05-13	1506527C	1.50 ppb
2015-05-13	1506527D	1.40 ppb
2015-05-13	1506527B	1.50 ppb
2015-05-13	1506527A	1.50 ppb
2015-08-12	1512507-004	0.610 ppb
2015-08-12	1512507-002	0.580 ppb
2015-08-12	1512507-003	ND
2015-08-12	1212507-001	0.540 ppb
2015-11-10	1517900-001	ND
2015-11-10	1517900-003	0.580 ppb
2015-11-10	1517900-004	ND
2015-11-10	1517900-002	0.540 ppb
2016-01-13	1600649-001DBP	ND
2016-01-13	1600649-002DBP	ND
2016-01-13	1600649-004DBP	ND
2016-01-13	1600649-003DBP	ND
2016-04-13	1605242-004DBP	ND
2016-04-13	1605242-001DBP	ND
2016-04-13	1605242-003DBP	ND
2016-04-13	1605242-002DBP	ND
2016-08-18	1613696-002	1.20 ppb
2016-08-18	1613696-004	1.10 ppb
2016-08-18	1613696-001	1.10 ppb
2016-08-18	1613696-003	1.30 ppb
2016-11-09	1618795-002DBP	1.90 ppb
2016-11-09	1618795-004DBP	1.80 ppb
2016-11-09	1618795-003DBP	1.80 ppb
2016-11-09	1618795-001DBP	1.70 ppb
2017-02-08	1701946-002	0.650 ppb
2017-02-08	1701946-004	0.650 ppb
2017-02-08	1701946-003	0.620 ppb
2017-02-08	1701946-001	0.630 ppb
2017-05-10	1706813-004	1.40 ppb
2017-05-10	1706813-001	1.50 ppb
2017-05-10	1706813-002	1.50 ppb
2017-05-10	1706813-003	1.50 ppb
2017-08-09	1712940-003	0.640 ppb
2017-08-09	1712940-002	0.560 ppb
2017-08-09	1712940-004	0.660 ppb
2017-08-09	1712940-001	0.650 ppb
2017-11-08	1718523-003	ND
2017-11-08	1718523-001	0.650 ppb
2017-11-08	1718523-004	0.510 ppb
2017-11-08	1718523-002	0.580 ppb
2018-02-14	1802296-001	ND
2018-02-14	1802296-003	ND
2018-02-14	1802296-004	ND
2018-02-14	1802296-002	ND
2018-05-13	1807035-002	ND
2018-05-13	1807035-001	ND
2018-05-13	1807035-003	ND
2018-05-13	1807035-004	ND
2018-08-08	1813399-004	0.610 ppb
2018-08-08	1813399-001	0.660 ppb
2018-08-08	1813399-003	0.640 ppb
2018-08-08	1813399-002	0.730 ppb
2018-11-14	1819704-003	0.590 ppb
2018-11-14	1819704-001	0.590 ppb
2018-11-14	1819704-002	0.660 ppb
2018-11-14	1819704-004	ND
2019-02-13	1902050-003	0.540 ppb
2019-02-13	1902050-001	ND
2019-02-13	1902050-004	ND
2019-02-13	1902050-002	ND
2019-05-08	1906613-002	ND
2019-05-08	1906613-003	ND
2019-05-08	1906613-001	ND
2019-05-08	1906613-004	ND
2019-08-14	1913663-003	0.810 ppb
2019-08-14	1913663-004	0.740 ppb
2019-08-14	1913663-001	0.820 ppb
2019-08-14	1913663-002	0.810 ppb
2019-11-13	1919228-004	ND
2019-11-13	1919228-001	0.510 ppb
2019-11-13	1919228-002	0.600 ppb
2019-11-13	1919228-003	0.620 ppb