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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Put-in-bay 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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.08 ppb54ND - 2.40 ppb
20130.0875 ppb81ND - 0.700 ppb
20140.313 ppb84ND - 0.700 ppb
20150.150 ppb82ND - 0.600 ppb
20160.413 ppb84ND - 1.30 ppb
20170.338 ppb84ND - 1.10 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
2012-02-2712-12095-03ND
2012-06-2912-17735-041.000 ppb
2012-09-2912-22878-011.30 ppb
2012-11-1412-24603-010.700 ppb
2012-12-2012-26331-022.40 ppb
2013-03-0713-12974-010.700 ppb
2013-03-2713-13721-01ND
2013-06-0313-16673-01ND
2013-06-0313-16673-02ND
2013-09-0313-21549-02ND
2013-09-0313-21549-01ND
2013-12-0513-26398-01ND
2013-12-0513-26398-02ND
2014-03-0414-12680-030.600 ppb
2014-03-0414-12680-020.600 ppb
2014-06-0714-17820-01ND
2014-06-0714-17820-02ND
2014-09-0214-21816-020.700 ppb
2014-09-0214-21816-010.600 ppb
2014-12-0714-26643-03ND
2014-12-0714-26643-04ND
2015-03-0215-12590-03ND
2015-03-0515-12590-04ND
2015-06-0115-16989-01ND
2015-06-0115-16989-02ND
2015-09-0715-22991-01ND
2015-09-0715-22991-02ND
2015-12-0415-27794-030.600 ppb
2015-12-0715-27794-040.600 ppb
2016-03-0716-13495-01ND
2016-03-0716-13495-02ND
2016-06-0116-17826-04ND
2016-06-0116-17826-03ND
2016-09-0716-25073-010.600 ppb
2016-09-0716-25073-020.600 ppb
2016-12-0516-30236-011.30 ppb
2016-12-0516-30236-020.800 ppb
2017-03-0117-13519-020.500 ppb
2017-03-0117-13519-010.500 ppb
2017-06-0617-19696-04ND
2017-06-0617-19696-05ND
2017-09-0717-28238-011.10 ppb
2017-09-0717-28238-020.600 ppb
2017-12-0317-32913-03ND
2017-12-0317-32913-04ND