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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Ironton PWS

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.325 ppb164ND - 1.60 ppb
20150.399 ppb164ND - 2.61 ppb
20160.952 ppb165ND - 3.92 ppb
20170.532 ppb194ND - 2.70 ppb
20180.136 ppb143ND - 0.700 ppb
20191.16 ppb168ND - 4.30 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
2014-01-14A140173027ND
2014-01-14A140173026ND
2014-01-14A140173025ND
2014-01-14A140173024ND
2014-04-08A140190847ND
2014-04-08A140190846ND
2014-04-08A140190845ND
2014-04-08A140190844ND
2014-07-08A140191172ND
2014-07-08A140191169ND
2014-07-08A140191174ND
2014-07-08A140191173ND
2014-10-14A1402174791.10 ppb
2014-10-14A1402174801.40 ppb
2014-10-14A1402174781.60 ppb
2014-10-14A1402174771.10 ppb
2015-01-12A150217174ND
2015-01-12A150217175ND
2015-01-12A150217176ND
2015-01-12A150217177ND
2015-04-14A150232279ND
2015-04-14A150232278ND
2015-04-14A150232277ND
2015-04-14A150232280ND
2015-07-14A150285672ND
2015-07-14A150191171ND
2015-07-14A150285671ND
2015-07-14A150285666ND
2015-10-13A1503316311.35 ppb
2015-10-13A1503316321.20 ppb
2015-10-13A1503316301.22 ppb
2015-10-13A1503316332.61 ppb
2016-01-12A160285670ND
2016-01-12A160332028ND
2016-01-12A160332026ND
2016-01-12A160332027ND
2016-04-12A160374736ND
2016-04-12A160374737ND
2016-04-12A160374738ND
2016-04-12A160374740ND
2016-07-12A160399652ND
2016-07-12A160399653ND
2016-07-12A1603996540.540 ppb
2016-07-12A160399655ND
2016-10-11A1604473623.66 ppb
2016-10-11A1604473613.54 ppb
2016-10-11A1604473603.57 ppb
2016-10-11A1604473593.92 ppb
2017-01-10A170467811ND
2017-01-10A170467812ND
2017-01-10A170467813ND
2017-01-10A170467833ND
2017-04-11A170463029ND
2017-04-11A170477161ND
2017-04-11A170477153ND
2017-04-11A170477154ND
2017-07-10A170498158ND
2017-07-10A170504750ND
2017-07-10A170504875ND
2017-07-11A170498159ND
2017-07-25A170516867ND
2017-07-25A170516866ND
2017-07-25A170516865ND
2017-10-10A1705399702.70 ppb
2017-10-10A1705399722.60 ppb
2017-10-10A1704981642.60 ppb
2017-10-11A1705399712.20 ppb
2018-01-09A1805482710.700 ppb
2018-01-09A1805482720.600 ppb
2018-01-09A180548273ND
2018-01-09A1805482740.600 ppb
2018-04-10A180578544ND
2018-04-10A180578542ND
2018-04-10A180578541ND
2018-04-11A180578543ND
2018-07-10A180570524ND
2018-07-10A180593238ND
2018-07-10A180593239ND
2018-07-10A180593240ND
2018-10-09A180593273ND
2018-10-09A180593275ND
2019-01-089A01253-01ND
2019-01-089A01253-02ND
2019-01-089A01253-03ND
2019-01-089A01253-04ND
2019-04-099D01444-010.800 ppb
2019-04-099D01444-040.600 ppb
2019-04-099D01444-030.600 ppb
2019-04-099D01444-020.700 ppb
2019-07-099G01483-01ND
2019-07-099G01483-02ND
2019-07-099G01483-03ND
2019-07-099G01483-04ND
2019-10-089J01388-013.80 ppb
2019-10-089J01388-024.30 ppb
2019-10-089J01388-034.30 ppb
2019-10-089J01388-043.50 ppb