Bromoform

City of Lincoln

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

148

Samples

Samples exceeding legal limit (MCL)

126

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.781 ppb	24	23	ND - 1.04 ppb
2015	0.835 ppb	24	18	ND - 1.38 ppb
2016	1.41 ppb	26	25	ND - 2.02 ppb
2017	1.37 ppb	24	24	1.01 ppb - 1.64 ppb
2018	0.840 ppb	24	24	0.500 ppb - 1.25 ppb
2019	0.378 ppb	26	14	ND - 0.990 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
2014-01-14	283286	0.760 ppb
2014-01-14	283287	0.650 ppb
2014-01-14	283288	0.750 ppb
2014-01-14	283289	0.730 ppb
2014-01-14	283290	0.820 ppb
2014-01-14	283291	0.710 ppb
2014-04-15	294932	0.716 ppb
2014-04-15	294933	0.796 ppb
2014-04-15	294934	0.867 ppb
2014-04-15	294935	0.761 ppb
2014-04-15	294936	0.829 ppb
2014-04-15	294937	0.794 ppb
2014-07-15	311954	1.04 ppb
2014-07-15	311955	0.987 ppb
2014-07-15	311956	1.01 ppb
2014-07-15	311957	0.926 ppb
2014-07-15	311958	0.940 ppb
2014-07-15	311959	0.994 ppb
2014-10-14	330694	0.982 ppb
2014-10-14	330695	0.593 ppb
2014-10-14	330696	0.566 ppb
2014-10-14	330697	ND
2014-10-14	330698	0.767 ppb
2014-10-14	330699	0.744 ppb
2015-01-13	344888	1.22 ppb
2015-01-13	344889	1.18 ppb
2015-01-13	344890	1.17 ppb
2015-01-13	344891	1.13 ppb
2015-01-13	344892	0.886 ppb
2015-01-13	344893	1.04 ppb
2015-04-28	357563	1.38 ppb
2015-04-28	357564	1.25 ppb
2015-04-28	357565	1.05 ppb
2015-04-28	357566	1.20 ppb
2015-04-28	357567	1.27 ppb
2015-04-28	357568	1.28 ppb
2015-07-14	374514	ND
2015-07-14	374515	ND
2015-07-14	374516	ND
2015-07-14	374517	ND
2015-07-14	374518	ND
2015-07-14	374519	ND
2015-10-13	393517	1.05 ppb
2015-10-13	393518	1.01 ppb
2015-10-13	393519	0.896 ppb
2015-10-13	393520	1.05 ppb
2015-10-13	393521	1.06 ppb
2015-10-13	393522	0.924 ppb
2016-01-12		1.37 ppb
2016-01-12		1.11 ppb
2016-01-12		1.19 ppb
2016-01-12		1.17 ppb
2016-01-12		1.27 ppb
2016-01-12		1.15 ppb
2016-04-12		1.98 ppb
2016-04-12		1.88 ppb
2016-04-12		1.93 ppb
2016-04-12		1.81 ppb
2016-04-12		2.02 ppb
2016-04-12		1.86 ppb
2016-05-02		0.821 ppb
2016-05-02		ND
2016-07-12		1.47 ppb
2016-07-12		1.59 ppb
2016-07-12		1.63 ppb
2016-07-12		1.64 ppb
2016-07-12		1.68 ppb
2016-07-12		1.56 ppb
2016-10-11		1.39 ppb
2016-10-11		1.29 ppb
2016-10-11		1.26 ppb
2016-10-11		1.03 ppb
2016-10-11		1.25 ppb
2016-10-11		1.27 ppb
2017-01-10		1.31 ppb
2017-01-10		1.41 ppb
2017-01-10		1.38 ppb
2017-01-10		1.30 ppb
2017-01-10		1.49 ppb
2017-01-10		1.52 ppb
2017-04-11		1.63 ppb
2017-04-11		1.37 ppb
2017-04-11		1.58 ppb
2017-04-11		1.64 ppb
2017-04-11		1.34 ppb
2017-04-11		1.24 ppb
2017-07-11		1.42 ppb
2017-07-11		1.15 ppb
2017-07-11		1.32 ppb
2017-07-11		1.34 ppb
2017-07-11		1.54 ppb
2017-07-11		1.39 ppb
2017-10-10		1.30 ppb
2017-10-10		1.33 ppb
2017-10-10		1.33 ppb
2017-10-10		1.01 ppb
2017-10-10		1.25 ppb
2017-10-10		1.18 ppb
2018-01-10	532285	1.13 ppb
2018-01-10	532286	1.14 ppb
2018-01-10	532287	1.02 ppb
2018-01-10	532288	0.960 ppb
2018-01-10	532289	1.13 ppb
2018-01-10	532290	1.25 ppb
2018-04-10	543824	0.982 ppb
2018-04-10	543825	1.12 ppb
2018-04-10	543826	0.794 ppb
2018-04-10	543827	1.02 ppb
2018-04-10	543828	1.23 ppb
2018-04-10	543829	1.13 ppb
2018-07-11	561897	0.519 ppb
2018-07-11	561898	0.710 ppb
2018-07-11	561899	0.570 ppb
2018-07-11	561900	0.630 ppb
2018-07-11	561901	0.500 ppb
2018-07-11	561902	0.530 ppb
2018-10-09	578345	0.590 ppb
2018-10-09	578346	0.610 ppb
2018-10-09	578347	0.640 ppb
2018-10-09	578348	0.710 ppb
2018-10-09	578349	0.620 ppb
2018-10-09	578350	0.620 ppb
2019-01-16	590625	0.810 ppb
2019-01-16	590626	0.830 ppb
2019-01-16	590627	0.830 ppb
2019-01-16	590628	0.770 ppb
2019-01-16	590629	0.790 ppb
2019-01-16	590630	0.750 ppb
2019-04-11	600536	0.590 ppb
2019-04-11	600537	0.500 ppb
2019-04-11	600538	0.560 ppb
2019-04-11	600539	0.650 ppb
2019-04-11	600540	0.610 ppb
2019-04-11	600541	0.640 ppb
2019-05-07	604780	ND
2019-05-07	604781	0.990 ppb
2019-07-09	622420	ND
2019-07-09	622421	ND
2019-07-09	622422	ND
2019-07-09	622423	0.520 ppb
2019-07-09	622424	ND
2019-07-09	622425	ND
2019-10-15	638244	ND
2019-10-15	638245	ND
2019-10-15	638246	ND
2019-10-15	638247	ND
2019-10-15	638248	ND
2019-10-15	638249	ND