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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Aqua Ohio - Ashtabula

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

 

98

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND170ND
2015ND170ND
20160.0294 ppb171ND - 0.500 ppb
20170.206 ppb176ND - 0.700 ppb
2018ND170ND
20190.162 ppb134ND - 0.600 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
2014-02-05AE23120ND
2014-02-10AE23629ND
2014-02-10AE23632ND
2014-02-10AE23630ND
2014-02-10AE23631ND
2014-05-08AE32515ND
2014-05-08AE32516ND
2014-05-08AE32517ND
2014-05-08AE32518ND
2014-08-11AE44207ND
2014-08-11AE44208ND
2014-08-11AE44209ND
2014-08-11AE44210ND
2014-11-10AE56675ND
2014-11-10AE56676ND
2014-11-10AE56674ND
2014-11-10AE56673ND
2015-02-03AE64951ND
2015-02-10AE65630ND
2015-02-10AE65631ND
2015-02-10AE65632ND
2015-02-10AE65633ND
2015-05-12AE75526ND
2015-05-12AE75527ND
2015-05-12AE75524ND
2015-05-12AE75525ND
2015-08-10AE87323ND
2015-08-10AE87326ND
2015-08-10AE87324ND
2015-08-10AE87325ND
2015-11-10AE99109ND
2015-11-10AE99110ND
2015-11-10AE99111ND
2015-11-10AE99112ND
2016-02-03AF07022ND
2016-02-09AF07498ND
2016-02-09AF07497ND
2016-02-09AF07496ND
2016-02-09AF07495ND
2016-05-09AF15759ND
2016-05-09AF15760ND
2016-05-09AF15761ND
2016-05-09AF15762ND
2016-08-09AF257660.500 ppb
2016-08-09AF25767ND
2016-08-09AF25768ND
2016-08-09AF25769ND
2016-11-08AF35541ND
2016-11-08AF35540ND
2016-11-08AF35538ND
2016-11-08AF35539ND
2017-02-08AF43204ND
2017-02-08AF43205ND
2017-02-08AF43206ND
2017-02-08AF43207ND
2017-03-01AF44955ND
2017-05-10AF51031ND
2017-05-10AF51032ND
2017-05-10AF51030ND
2017-05-10AF51029ND
2017-08-08AF600260.600 ppb
2017-08-08AF60027ND
2017-08-08AF600280.600 ppb
2017-08-08AF60029ND
2017-11-0817-32129-040.600 ppb
2017-11-0817-32129-030.500 ppb
2017-11-0817-32129-020.700 ppb
2017-11-0817-32129-010.500 ppb
2018-02-01AF75346ND
2018-02-08AF76098ND
2018-02-08AF76099ND
2018-02-08AF76100ND
2018-02-08AF76101ND
2018-05-08AF83681ND
2018-05-08AF83684ND
2018-05-08AF83682ND
2018-05-08AF83683ND
2018-08-09AF92470ND
2018-08-09AF92471ND
2018-08-09AF92472ND
2018-08-09AF92473ND
2018-11-08AG01022ND
2018-11-08AG01023ND
2018-11-08AG01024ND
2018-11-08AG01025ND
2019-02-04AG08005ND
2019-02-11AG08685ND
2019-02-11AG08688ND
2019-02-11AG08687ND
2019-02-11AG08686ND
2019-05-08AG17098ND
2019-05-08AG17099ND
2019-05-08AG17100ND
2019-05-08AG17101ND
2019-08-08AG275740.500 ppb
2019-08-08AG275750.500 ppb
2019-08-08AG275760.600 ppb
2019-08-08AG275770.500 ppb