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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Aqua Ohio - Tiffin

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

 

93

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.476 ppb176ND - 1.60 ppb
20150.488 ppb1610ND - 1.30 ppb
20160.769 ppb168ND - 3.50 ppb
20170.0313 ppb161ND - 0.500 ppb
20180.594 ppb168ND - 1.90 ppb
20190.392 ppb125ND - 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
2014-02-10AE23672ND
2014-02-10AE23673ND
2014-02-10AE23674ND
2014-02-10AE23675ND
2014-05-08AE32824ND
2014-05-08AE32823ND
2014-05-08AE32822ND
2014-05-08AE32821ND
2014-08-08AE44190ND
2014-08-08AE441911.40 ppb
2014-08-08AE44192ND
2014-08-08AE44193ND
2014-11-10AE566691.10 ppb
2014-11-10AE566701.30 ppb
2014-11-10AE566711.10 ppb
2014-11-10AE566721.60 ppb
2014-11-1414-25755-011.60 ppb
2015-02-10AE65546ND
2015-02-10AE65547ND
2015-02-10AE65548ND
2015-02-10AE65545ND
2015-05-08AE752580.500 ppb
2015-05-08AE75259ND
2015-05-08AE752600.500 ppb
2015-05-08AE752610.500 ppb
2015-08-10AE874891.000 ppb
2015-08-10AE874901.20 ppb
2015-08-10AE874911.30 ppb
2015-08-10AE874921.000 ppb
2015-11-10AE992370.500 ppb
2015-11-10AE992360.700 ppb
2015-11-10AE99235ND
2015-11-10AE992340.600 ppb
2016-02-09AF07581ND
2016-02-09AF07582ND
2016-02-09AF075830.500 ppb
2016-02-09AF07584ND
2016-05-10AF16054ND
2016-05-10AF16055ND
2016-05-10AF16056ND
2016-05-10AF16057ND
2016-08-09AF259142.80 ppb
2016-08-09AF259152.10 ppb
2016-08-09AF259161.90 ppb
2016-08-09AF259173.50 ppb
2016-11-08AF357890.500 ppb
2016-11-08AF357880.500 ppb
2016-11-08AF357870.500 ppb
2016-11-08AF35786ND
2017-02-10AF43311ND
2017-02-10AF43312ND
2017-02-10AF43313ND
2017-02-10AF43314ND
2017-05-08AF50909ND
2017-05-08AF50910ND
2017-05-08AF50911ND
2017-05-08AF50912ND
2017-08-08AF60136ND
2017-08-08AF60138ND
2017-08-08AF601370.500 ppb
2017-08-08AF60135ND
2017-11-1017-32128-03ND
2017-11-1017-32128-02ND
2017-11-1017-32128-04ND
2017-11-1017-32128-01ND
2018-02-08AF76375ND
2018-02-08AF76374ND
2018-02-08AF76373ND
2018-02-08AF76372ND
2018-05-08AF838140.700 ppb
2018-05-08AF838110.700 ppb
2018-05-08AF838120.600 ppb
2018-05-08AF838130.600 ppb
2018-08-0818-26706-041.70 ppb
2018-08-0818-26706-031.60 ppb
2018-08-0818-26706-021.70 ppb
2018-08-0818-26706-011.90 ppb
2018-11-0918-34746-02ND
2018-11-0918-34746-04ND
2018-11-0918-34746-03ND
2018-11-0918-34746-01ND
2019-02-0819-12832-01ND
2019-02-0819-12832-02ND
2019-02-0819-12832-03ND
2019-02-0819-12832-04ND
2019-05-1319-19623-01ND
2019-05-1319-19623-020.500 ppb
2019-05-1319-19623-03ND
2019-05-1319-19623-04ND
2019-08-0919-27529-011.000 ppb
2019-08-0919-27529-021.000 ppb
2019-08-0919-27529-031.10 ppb
2019-08-0919-27529-041.10 ppb