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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Edina

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.

 

85

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.165 ppb82ND - 0.800 ppb
20130.515 ppb2710ND - 3.70 ppb
20140.209 ppb112ND - 1.20 ppb
20150.737 ppb63ND - 2.40 ppb
2016ND130ND
2017ND200ND

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
2012-03-2712C0955-01ND
2012-08-1612H1756-010.520 ppb
2012-08-1612H1756-02ND
2012-08-1612H1756-03ND
2012-09-1012I0373-02ND
2012-09-1012I0373-01ND
2012-09-2512I1281-010.800 ppb
2012-11-0112K0073-01ND
2013-02-2713B1314-01ND
2013-03-0413C0187-040.700 ppb
2013-03-0413C0187-030.900 ppb
2013-03-0413C0187-020.900 ppb
2013-03-0413C0187-011.40 ppb
2013-05-0613E0431-011.70 ppb
2013-05-0613E0431-02ND
2013-05-0613E0431-03ND
2013-05-0613E0431-04ND
2013-05-3013E2572-03ND
2013-05-3013E2570-03ND
2013-05-3013E2570-02ND
2013-05-3013E2570-01ND
2013-07-2513G2162-03ND
2013-07-2513G2162-02ND
2013-07-2513G2162-01ND
2013-07-2513G2161-01ND
2013-07-2513G2159-04ND
2013-07-2513G2159-03ND
2013-08-0613H0573-011.70 ppb
2013-08-0613H0573-02ND
2013-08-0613H0573-030.900 ppb
2013-08-0613H0573-04ND
2013-11-0613K0315-04ND
2013-11-0613K0315-031.000 ppb
2013-11-0613K0315-021.000 ppb
2013-11-0613K0315-013.70 ppb
2014-06-3014F2153-01ND
2014-08-2014H1844-02ND
2014-08-2014H1844-01ND
2014-08-2014H1839-04ND
2014-08-2014H1839-03ND
2014-08-2014H1839-02ND
2014-08-2014H1839-01ND
2014-08-2514H2241-021.20 ppb
2014-08-2514H2241-011.10 ppb
2014-11-1914K0831-01ND
2014-11-1914K0831-02ND
2015-03-2515C1026-010.720 ppb
2015-05-1915E1395-01ND
2015-08-1815H1355-012.40 ppb
2015-08-1815H1355-021.30 ppb
2015-09-0315I0285-01ND
2015-12-0415L0261-01ND
2016-04-113428612ND
2016-04-113428662ND
2016-04-113428678ND
2016-04-113428699ND
2016-06-203475892ND
2016-06-213478338ND
2016-06-213475844ND
2016-06-213475907ND
2016-06-213475934ND
2016-06-213475817ND
2016-08-2416H2555-02ND
2016-08-2416H2555-01ND
2016-12-1416L0584-01ND
2017-02-0717B0347-01ND
2017-02-0717B0344-01ND
2017-02-0717B0344-02ND
2017-02-0717B0344-03ND
2017-02-0717B0344-04ND
2017-04-1317D0832-03ND
2017-04-1317D0832-01ND
2017-04-1317D0832-02ND
2017-05-1517E1214-01ND
2017-05-1517E1213-01ND
2017-07-2617G1806-01ND
2017-07-2617G1826-04ND
2017-07-2617G1826-03ND
2017-07-2617G1826-02ND
2017-07-2617G1826-01ND
2017-07-2617G1806-02ND
2017-08-0117H0137-02ND
2017-08-0117H0137-01ND
2017-12-1917L0684-01ND
2017-12-1917L0684-02ND