Bromoform

City of Grand Forks

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

209

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	32	ND
2015	ND	32	ND
2016	ND	49	ND
2017	ND	32	ND
2018	ND	32	ND
2019	ND	32	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
2014-02-18	14-S261	ND
2014-02-18	14-S265	ND
2014-02-18	14-S262	ND
2014-02-18	14-S267	ND
2014-02-18	14-S264	ND
2014-02-18	14-S263	ND
2014-02-18	14-S268	ND
2014-02-18	14-S266	ND
2014-05-19	14-S789	ND
2014-05-19	14-S784	ND
2014-05-19	14-S791	ND
2014-05-19	14-S786	ND
2014-05-19	14-S787	ND
2014-05-19	14-S788	ND
2014-05-19	14-S785	ND
2014-05-19	14-S790	ND
2014-08-18	14-S2016	ND
2014-08-18	14-S2017	ND
2014-08-18	14-S2018	ND
2014-08-18	14-S2019	ND
2014-08-18	14-S2020	ND
2014-08-18	14-S2021	ND
2014-08-18	14-S2022	ND
2014-08-18	14-S2015	ND
2014-11-18	14-S2801	ND
2014-11-18	14-S2799	ND
2014-11-18	14-S2798	ND
2014-11-18	14-S2803	ND
2014-11-18	14-S2805	ND
2014-11-18	14-S2804	ND
2014-11-18	14-S2802	ND
2014-11-18	14-S2800	ND
2015-02-18	15-S211	ND
2015-02-18	15-S216	ND
2015-02-18	15-S215	ND
2015-02-18	15-S214	ND
2015-02-18	15-S213	ND
2015-02-18	15-S212	ND
2015-02-18	15-S210	ND
2015-02-18	15-S209	ND
2015-05-19	15-S776	ND
2015-05-19	15-S769	ND
2015-05-19	15-S770	ND
2015-05-19	15-S771	ND
2015-05-19	15-S772	ND
2015-05-19	15-S773	ND
2015-05-19	15-S774	ND
2015-05-19	15-S775	ND
2015-08-17	15-S1706	ND
2015-08-17	15-S1705	ND
2015-08-17	15-S1710	ND
2015-08-17	15-S1709	ND
2015-08-17	15-S1708	ND
2015-08-17	15-S1707	ND
2015-08-17	15-S1712	ND
2015-08-17	15-S1711	ND
2015-11-16	15-S2471	ND
2015-11-16	15-S2472	ND
2015-11-16	15-S2473	ND
2015-11-16	15-S2478	ND
2015-11-16	15-S2474	ND
2015-11-16	15-S2475	ND
2015-11-16	15-S2476	ND
2015-11-16	15-S2477	ND
2016-02-22	16-S229	ND
2016-02-22	16-S232	ND
2016-02-22	16-S226	ND
2016-02-22	16-S228	ND
2016-02-22	16-S230	ND
2016-02-22	16-S231	ND
2016-02-22	16-S233	ND
2016-02-22	16-S227	ND
2016-05-16	16-S909	ND
2016-05-16	16-S907	ND
2016-05-16	16-S912	ND
2016-05-16	16-S911	ND
2016-05-16	16-S910	ND
2016-05-16	16-S908	ND
2016-05-16	16-S906	ND
2016-05-16	16-S905	ND
2016-08-23	16-S2225	ND
2016-08-23	16-S2222	ND
2016-08-23	16-S2224	ND
2016-08-23	16-S2226	ND
2016-08-23	16-S2227	ND
2016-08-23	16-S2221	ND
2016-08-23	16-S2223	ND
2016-08-23	16-S2220	ND
2016-09-02	16-S2349	ND
2016-09-02	16-S2353	ND
2016-09-02	16-S2347	ND
2016-09-02	16-S2352	ND
2016-09-02	16-S2348	ND
2016-09-02	16-S2350	ND
2016-09-02	16-S2346	ND
2016-09-02	16-S2351	ND
2016-09-20	16-S2497	ND
2016-10-18	16-S2689	ND
2016-10-18	16-S2686	ND
2016-10-18	16-S2691	ND
2016-10-18	16-S2687	ND
2016-10-18	16-S2688	ND
2016-10-18	16-S2685	ND
2016-10-18	16-S2690	ND
2016-10-18	16-S2692	ND
2016-11-15	16-S2848	ND
2016-11-15	16-S2846	ND
2016-11-15	16-S2847	ND
2016-11-15	16-S2842	ND
2016-11-15	16-S2845	ND
2016-11-15	16-S2844	ND
2016-11-15	16-S2841	ND
2016-11-15	16-S2843	ND
2017-02-21	17-S284	ND
2017-02-21	17-S277	ND
2017-02-21	17-S283	ND
2017-02-21	17-S282	ND
2017-02-21	17-S278	ND
2017-02-21	17-S279	ND
2017-02-21	17-S281	ND
2017-02-21	17-S280	ND
2017-05-15	17-S726	ND
2017-05-15	17-S725	ND
2017-05-15	17-S721	ND
2017-05-15	17-S722	ND
2017-05-15	17-S720	ND
2017-05-15	17-S727	ND
2017-05-15	17-S724	ND
2017-05-15	17-S723	ND
2017-08-21	17-S1743	ND
2017-08-21	17-S1736	ND
2017-08-21	17-S1737	ND
2017-08-21	17-S1738	ND
2017-08-21	17-S1739	ND
2017-08-21	17-S1740	ND
2017-08-21	17-S1742	ND
2017-08-21	17-S1741	ND
2017-11-13	17-S2390	ND
2017-11-13	17-S2389	ND
2017-11-13	17-S2388	ND
2017-11-13	17-S2387	ND
2017-11-13	17-S2385	ND
2017-11-13	17-S2391	ND
2017-11-13	17-S2392	ND
2017-11-13	17-S2386	ND
2018-02-13	18-S248	ND
2018-02-13	18-S250	ND
2018-02-13	18-S247	ND
2018-02-13	18-S246	ND
2018-02-13	18-S249	ND
2018-02-13	18-S251	ND
2018-02-13	18-S244	ND
2018-02-13	18-S245	ND
2018-05-14	18-S736	ND
2018-05-14	18-S735	ND
2018-05-14	18-S732	ND
2018-05-14	18-S737	ND
2018-05-14	18-S734	ND
2018-05-14	18-S731	ND
2018-05-14	18-S733	ND
2018-05-14	18-S730	ND
2018-08-21	18-S1842	ND
2018-08-21	18-S1841	ND
2018-08-21	18-S1840	ND
2018-08-21	18-S1839	ND
2018-08-21	18-S1837	ND
2018-08-21	18-S1836	ND
2018-08-21	18-S1835	ND
2018-08-21	18-S1838	ND
2018-11-13	18-S2355	ND
2018-11-13	18-S2349	ND
2018-11-13	18-S2352	ND
2018-11-13	18-S2354	ND
2018-11-13	18-S2353	ND
2018-11-13	18-S2351	ND
2018-11-13	18-S2356	ND
2018-11-13	18-S2350	ND
2019-02-11	19-S115	ND
2019-02-11	19-S112	ND
2019-02-11	19-S110	ND
2019-02-11	19-S111	ND
2019-02-11	19-S109	ND
2019-02-11	19-S108	ND
2019-02-11	19-S114	ND
2019-02-11	19-S113	ND
2019-05-13	19-S566	ND
2019-05-13	19-S563	ND
2019-05-13	19-S559	ND
2019-05-13	19-S565	ND
2019-05-13	19-S564	ND
2019-05-13	19-S562	ND
2019-05-13	19-S560	ND
2019-05-13	19-S561	ND
2019-08-19	19-S1699	ND
2019-08-19	19-S1700	ND
2019-08-19	19-S1705	ND
2019-08-19	19-S1706	ND
2019-08-19	19-S1701	ND
2019-08-19	19-S1703	ND
2019-08-19	19-S1702	ND
2019-08-19	19-S1704	ND
2019-11-12	19-S2412	ND
2019-11-12	19-S2413	ND
2019-11-12	19-S2414	ND
2019-11-12	19-S2418	ND
2019-11-12	19-S2417	ND
2019-11-12	19-S2415	ND
2019-11-12	19-S2419	ND
2019-11-12	19-S2416	ND