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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Aqua Ohio - Marion

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

 

90

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
20150.0313 ppb161ND - 0.500 ppb
20160.331 ppb166ND - 1.80 ppb
20170.325 ppb167ND - 1.000 ppb
20180.169 ppb165ND - 0.700 ppb
20190.350 ppb105ND - 0.800 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
2014-01-08AE20372ND
2014-01-08AE20371ND
2014-01-08AE20374ND
2014-01-08AE20373ND
2014-04-08AE29316ND
2014-04-08AE29317ND
2014-04-08AE29318ND
2014-04-08AE29319ND
2014-07-09AE40034ND
2014-07-09AE40035ND
2014-07-09AE40036ND
2014-07-09AE40037ND
2014-10-08AE52550ND
2014-10-08AE52551ND
2014-10-08AE52549ND
2014-10-08AE52548ND
2015-01-13AE62699ND
2015-01-13AE62700ND
2015-01-13AE62701ND
2015-01-13AE62702ND
2015-04-08AE71833ND
2015-04-08AE71834ND
2015-04-08AE71835ND
2015-04-08AE71836ND
2015-07-08AE82903ND
2015-07-08AE82906ND
2015-07-08AE82904ND
2015-07-08AE82905ND
2015-10-08AE95133ND
2015-10-08AE951340.500 ppb
2015-10-08AE95135ND
2015-10-08AE95136ND
2016-01-11AF04767ND
2016-01-11AF04768ND
2016-01-11AF04769ND
2016-01-11AF04770ND
2016-04-11AF12949ND
2016-04-11AF12952ND
2016-04-11AF12951ND
2016-04-11AF12950ND
2016-07-11AF217680.500 ppb
2016-07-11AF217690.500 ppb
2016-07-11AF217700.500 ppb
2016-07-11AF217710.500 ppb
2016-10-10AF32490ND
2016-10-10AF324881.50 ppb
2016-10-10AF324871.80 ppb
2016-10-10AF32489ND
2017-01-09AF40397ND
2017-01-09AF40398ND
2017-01-09AF403990.500 ppb
2017-01-09AF40400ND
2017-04-10AF48106ND
2017-04-10AF48107ND
2017-04-10AF48108ND
2017-04-10AF48109ND
2017-07-10AF567590.600 ppb
2017-07-10AF567600.600 ppb
2017-07-10AF56761ND
2017-07-10AF56762ND
2017-10-09AF661010.800 ppb
2017-10-09AF661030.800 ppb
2017-10-09AF661021.000 ppb
2017-10-09AF661000.900 ppb
2018-01-08AF73190ND
2018-01-08AF73191ND
2018-01-08AF73192ND
2018-01-08AF73193ND
2018-04-09AF810370.700 ppb
2018-04-09AF81036ND
2018-04-09AF810350.500 ppb
2018-04-09AF810340.500 ppb
2018-07-1218-24272-01ND
2018-07-1218-24272-02ND
2018-07-1218-24272-03ND
2018-07-1218-24272-04ND
2018-10-0818-31946-01ND
2018-10-0818-31946-040.500 ppb
2018-10-0818-31946-030.500 ppb
2018-10-0818-31946-02ND
2019-01-0919-10652-01ND
2019-01-0919-10652-02ND
2019-01-0919-10652-030.600 ppb
2019-01-0919-10652-040.700 ppb
2019-04-0819-16887-010.600 ppb
2019-04-0819-16887-02ND
2019-07-0819-24259-01ND
2019-07-0819-24259-02ND
2019-10-0919-32630-010.800 ppb
2019-10-0919-32630-020.800 ppb