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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

East Central Bossier Water System

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

 

94

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201493.2 ppb148ND - 245.0 ppb
2015125.1 ppb1210ND - 267.0 ppb
201662.3 ppb2014ND - 257.0 ppb
20170.0950 ppb164ND - 0.400 ppb
20180.538 ppb164ND - 2.70 ppb
2019ND160ND

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
2014-02-1412781151.19 ppb
2014-02-141278114169.0 ppb
2014-02-1412781151.19 ppb
2014-02-141278114169.0 ppb
2014-05-281305272237.0 ppb
2014-05-281305273ND
2014-05-281305273ND
2014-05-281305272237.0 ppb
2014-08-151326929ND
2014-08-151326929ND
2014-12-081356090245.0 ppb
2014-12-081356091ND
2014-12-081356091ND
2014-12-081356090245.0 ppb
2015-05-121394275212.0 ppb
2015-05-1213942764.49 ppb
2015-05-1213942764.49 ppb
2015-05-121394275212.0 ppb
2015-08-071417256266.0 ppb
2015-08-0714172571.10 ppb
2015-08-0714172571.10 ppb
2015-08-071417256266.0 ppb
2015-11-051441696267.0 ppb
2015-11-051441697ND
2015-11-051441697ND
2015-11-051441696267.0 ppb
2016-02-191468994ND
2016-02-191468995187.0 ppb
2016-02-191468994ND
2016-02-191468995187.0 ppb
2016-03-181475988ND
2016-03-181475989171.0 ppb
2016-03-181475988ND
2016-03-181475989171.0 ppb
2016-05-0314879340.520 ppb
2016-05-0314879340.520 ppb
2016-05-031487935257.0 ppb
2016-05-031487935257.0 ppb
2016-09-301529302ND
2016-09-301529302ND
2016-09-3015293012.97 ppb
2016-09-3015293012.97 ppb
2016-11-1815424890.550 ppb
2016-11-1815424883.57 ppb
2016-11-1815424890.550 ppb
2016-11-1815424883.57 ppb
2017-02-2235296880011ND
2017-02-2235296880012ND
2017-02-2235296880012ND
2017-02-2235296880011ND
2017-05-17353134290210.360 ppb
2017-05-1735313429022ND
2017-05-17353134290210.360 ppb
2017-05-1735313429022ND
2017-08-0835329950050ND
2017-08-0835329950003ND
2017-08-0835329950050ND
2017-08-0835329950003ND
2017-11-16353495120020.400 ppb
2017-11-1635349512001ND
2017-11-1635349512001ND
2017-11-16353495120020.400 ppb
2018-02-1535375101001ND
2018-02-1535375101002ND
2018-02-1535375101001ND
2018-02-1535375101002ND
2018-05-1035392010001ND
2018-05-1035392010002ND
2018-05-1035392010001ND
2018-05-1035392010002ND
2018-08-1435411594002ND
2018-08-14354115940011.60 ppb
2018-08-14354115940011.60 ppb
2018-08-1435411594002ND
2018-11-02354281870022.70 ppb
2018-11-0235428187001ND
2018-11-02354281870022.70 ppb
2018-11-0235428187001ND
2019-02-2035450240002ND
2019-02-2035450240001ND
2019-02-2035450240001ND
2019-02-2035450240002ND
2019-05-0835468307002ND
2019-05-0835468307002ND
2019-05-0835468307001ND
2019-05-0835468307001ND
2019-08-1335491168002ND
2019-08-1335491168001ND
2019-08-1335491168001ND
2019-08-1335491168002ND
2019-11-1435512809001ND
2019-11-1435512809002ND
2019-11-1435512809001ND
2019-11-1435512809002ND