Bromoform

City of Edmond - Arcadia Lake

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

233

Samples

Samples exceeding legal limit (MCL)

179

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	5.14 ppb	33	29	ND - 9.03 ppb
2015	5.40 ppb	33	32	ND - 13.5 ppb
2016	3.23 ppb	75	38	ND - 12.4 ppb
2017	4.78 ppb	35	30	ND - 9.36 ppb
2018	4.93 ppb	33	30	ND - 12.6 ppb
2019	3.42 ppb	24	21	ND - 6.59 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
2014-02-18	4B20042-01	ND
2014-02-18	4B20042-02	2.30 ppb
2014-02-18	4B20042-03	1.000 ppb
2014-02-18	4B20042-04	4.22 ppb
2014-02-18	4B20042-05	4.09 ppb
2014-02-18	4B20042-06	4.22 ppb
2014-02-18	4B20042-07	4.65 ppb
2014-02-24	4C06027-01	4.77 ppb
2014-05-01	4E01058-01	ND
2014-05-01	4E01058-02	2.78 ppb
2014-05-01	4E01058-03	ND
2014-05-01	4E01058-04	8.29 ppb
2014-05-01	4E01058-05	7.60 ppb
2014-05-01	4E01058-06	7.96 ppb
2014-05-01	4E01058-07	5.17 ppb
2014-05-01	4E01058-08	9.03 ppb
2014-08-04	4H05108-01	8.08 ppb
2014-08-04	4H05108-03	6.95 ppb
2014-08-04	4H05108-04	6.87 ppb
2014-08-04	4H05108-06	7.69 ppb
2014-08-04	4H05108-07	8.04 ppb
2014-08-04	4H05108-08	8.00 ppb
2014-08-05	4H05108-02	5.14 ppb
2014-08-05	4H05108-05	8.01 ppb
2014-11-03	4K05006-01	5.26 ppb
2014-11-03	4K05006-02	6.82 ppb
2014-11-03	4K05006-03	3.89 ppb
2014-11-03	4K05006-04	4.30 ppb
2014-11-03	4K05006-05	6.51 ppb
2014-11-03	4K05006-06	5.83 ppb
2014-11-03	4K05006-07	5.74 ppb
2014-11-03	4K05006-08	6.56 ppb
2014-12-17	4L17093-02	ND
2015-02-09	1372151	2.17 ppb
2015-02-09	1372153	4.35 ppb
2015-02-09	1372155	2.70 ppb
2015-02-09	1372157	4.18 ppb
2015-02-09	1372159	4.84 ppb
2015-02-09	1372161	2.34 ppb
2015-02-09	1372163	5.06 ppb
2015-02-09	1372165	2.76 ppb
2015-05-04	1393685	4.22 ppb
2015-05-04	1393687	7.35 ppb
2015-05-04	1393689	1.39 ppb
2015-05-04	1393691	11.7 ppb
2015-05-04	1393693	10.00 ppb
2015-05-04	1393695	4.62 ppb
2015-05-04	1393697	13.5 ppb
2015-05-04	1393699	10.5 ppb
2015-08-03	1416215	4.92 ppb
2015-08-03	1416217	4.89 ppb
2015-08-03	1416219	4.85 ppb
2015-08-03	1416222	5.38 ppb
2015-08-03	1416224	4.94 ppb
2015-08-03	1416226	6.40 ppb
2015-08-03	1416228	5.76 ppb
2015-08-03	1416230	4.93 ppb
2015-10-07	5J07131-01	ND
2015-11-02	1441402	3.27 ppb
2015-11-02	1441404	7.62 ppb
2015-11-02	1441406	5.20 ppb
2015-11-02	1441408	5.66 ppb
2015-11-02	1441410	4.34 ppb
2015-11-02	1441412	4.85 ppb
2015-11-02	1441414	6.97 ppb
2015-11-02	1441416	6.43 ppb
2016-02-08	1466096	7.84 ppb
2016-02-08	1466097	8.57 ppb
2016-02-08	1466098	4.57 ppb
2016-02-08	1466099	5.23 ppb
2016-02-08	1466100	4.60 ppb
2016-02-08	1466101	5.90 ppb
2016-02-08	1466102	6.24 ppb
2016-02-08	1466103	7.57 ppb
2016-04-28	1486772	5.99 ppb
2016-04-28	1486773	6.89 ppb
2016-04-28	1486774	5.84 ppb
2016-04-28	1486775	ND
2016-04-28	1486776	ND
2016-04-28	1486777	ND
2016-04-28	1486778	ND
2016-04-28	1486779	2.27 ppb
2016-04-28	1486780	ND
2016-04-28	1486781	ND
2016-04-28	1486782	ND
2016-04-28	1486783	ND
2016-05-02	1488176	8.11 ppb
2016-05-02	1488177	4.00 ppb
2016-05-02	1488178	8.29 ppb
2016-05-02	1488179	4.82 ppb
2016-05-02	1488180	4.88 ppb
2016-05-02	1488181	4.31 ppb
2016-05-02	1488182	ND
2016-05-02	1488183	ND
2016-05-03	1489216	1.44 ppb
2016-05-03	1489217	ND
2016-05-03	1489218	ND
2016-05-04	1489219	ND
2016-05-04	1489220	ND
2016-05-04	1489221	ND
2016-05-04	1489222	0.920 ppb
2016-05-05	1489223	ND
2016-05-05	1489224	ND
2016-05-05	1489225	ND
2016-05-09	1491227	ND
2016-05-09	1491233	ND
2016-05-09	1491234	ND
2016-05-09	1491235	ND
2016-05-09	1491236	ND
2016-05-09	1491237	ND
2016-05-10	1491239	ND
2016-05-10	1491240	ND
2016-05-11	1491241	ND
2016-05-11	1491242	ND
2016-05-11	1491243	ND
2016-05-11	1491244	ND
2016-05-12	1491245	ND
2016-05-12	1491246	ND
2016-05-12	1491247	ND
2016-05-23	1494781	2.39 ppb
2016-05-23	1494782	ND
2016-05-23	1494783	9.76 ppb
2016-05-23	1494784	ND
2016-05-23	1494785	ND
2016-07-07	1505839	12.4 ppb
2016-07-07	1505841	5.69 ppb
2016-07-07	1505843	8.19 ppb
2016-07-07	1505845	11.7 ppb
2016-07-07	1505847	7.13 ppb
2016-07-07	1505849	9.76 ppb
2016-07-07	1505851	11.6 ppb
2016-07-07	1505853	6.00 ppb
2016-07-28	1511293	ND
2016-11-14	1541315	7.93 ppb
2016-11-14	1541321	8.56 ppb
2016-11-14	1541322	2.99 ppb
2016-11-14	1541323	6.77 ppb
2016-11-14	1541324	5.52 ppb
2016-11-14	1541325	7.62 ppb
2016-11-14	1541326	8.02 ppb
2016-11-14	1541327	2.19 ppb
2017-02-13	1563963	8.01 ppb
2017-02-13	1563965	8.46 ppb
2017-02-13	1563967	7.64 ppb
2017-02-13	1563969	6.24 ppb
2017-02-13	1563971	5.35 ppb
2017-02-13	1563973	3.13 ppb
2017-02-13	1563975	8.21 ppb
2017-02-13	1563977	3.42 ppb
2017-03-08	7C08038-05	ND
2017-03-14	7C14009-01	ND
2017-03-20	7C20037-01	ND
2017-05-08	1586877	7.49 ppb
2017-05-08	1586878	1.57 ppb
2017-05-08	1586879	ND
2017-05-08	1586880	6.07 ppb
2017-05-08	1586881	3.60 ppb
2017-05-08	1586882	3.34 ppb
2017-05-08	1586883	9.36 ppb
2017-05-08	1586884	0.490 ppb
2017-08-14	1613690	5.97 ppb
2017-08-14	1613693	6.16 ppb
2017-08-14	1613694	5.55 ppb
2017-08-14	1613695	5.30 ppb
2017-08-14	1613696	4.17 ppb
2017-08-14	1613697	5.73 ppb
2017-08-14	1613698	5.88 ppb
2017-08-14	1613699	5.28 ppb
2017-11-13	1639196	8.19 ppb
2017-11-13	1639197	1.88 ppb
2017-11-13	1639198	ND
2017-11-13	1639199	6.25 ppb
2017-11-13	1639200	5.06 ppb
2017-11-13	1639201	6.34 ppb
2017-11-13	1639202	5.86 ppb
2017-11-13	1639203	7.31 ppb
2018-02-12	1662100	6.77 ppb
2018-02-12	1662101	3.84 ppb
2018-02-12	1662102	2.68 ppb
2018-02-12	1662103	3.76 ppb
2018-02-12	1662104	4.53 ppb
2018-02-12	1662105	5.50 ppb
2018-02-12	1662106	5.79 ppb
2018-02-12	1662107	4.58 ppb
2018-05-14	1685288	12.6 ppb
2018-05-14	1685290	3.53 ppb
2018-05-14	1685292	ND
2018-05-14	1685294	9.95 ppb
2018-05-14	1685296	4.40 ppb
2018-05-14	1685298	7.87 ppb
2018-05-14	1685300	12.0 ppb
2018-05-14	1685302	6.55 ppb
2018-07-30	AG30042-36	ND
2018-08-13	1710339	5.43 ppb
2018-08-13	1710340	7.24 ppb
2018-08-13	1710341	4.86 ppb
2018-08-13	1710342	4.61 ppb
2018-08-13	1710343	6.22 ppb
2018-08-13	1710344	5.16 ppb
2018-08-13	1710345	6.42 ppb
2018-08-13	1710346	6.15 ppb
2018-11-20	1737914	3.41 ppb
2018-11-20	1737915	2.48 ppb
2018-11-20	1737916	ND
2018-11-20	1737917	2.16 ppb
2018-11-20	1737918	3.34 ppb
2018-11-20	1737919	3.70 ppb
2018-11-20	1737920	3.59 ppb
2018-11-20	1737921	3.49 ppb
2019-02-11	1759666	2.84 ppb
2019-02-11	1759669	3.60 ppb
2019-02-11	1759670	2.16 ppb
2019-02-11	1759671	1.66 ppb
2019-02-11	1759672	2.70 ppb
2019-02-11	1759673	2.88 ppb
2019-02-11	1759674	2.46 ppb
2019-02-11	1759675	2.23 ppb
2019-05-13	1783867	5.76 ppb
2019-05-13	1783868	3.25 ppb
2019-05-13	1783869	ND
2019-05-13	1783870	3.05 ppb
2019-05-13	1783871	4.62 ppb
2019-05-13	1783872	5.52 ppb
2019-05-13	1783873	5.51 ppb
2019-05-13	1783874	5.02 ppb
2019-11-13	1838578	2.93 ppb
2019-11-13	1838579	6.50 ppb
2019-11-13	1838580	ND
2019-11-13	1838581	3.60 ppb
2019-11-13	1838582	3.70 ppb
2019-11-13	1838583	5.55 ppb
2019-11-13	1838584	6.59 ppb
2019-11-13	1838585	ND