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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Steubenville

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.426 ppb164ND - 2.20 ppb
20150.958 ppb164ND - 4.48 ppb
20161.55 ppb1611ND - 3.62 ppb
20170.596 ppb164ND - 2.62 ppb
20180.434 ppb1611ND - 0.730 ppb
20190.673 ppb169ND - 1.97 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
2014-01-1414011109ND
2014-01-1414011108ND
2014-01-1414011107ND
2014-01-1414011106ND
2014-04-0814041625ND
2014-04-0814041624ND
2014-04-0814041623ND
2014-04-0814041622ND
2014-07-1414072401ND
2014-07-1414072400ND
2014-07-1414072402ND
2014-07-1414072403ND
2014-10-08141010591.38 ppb
2014-10-08141010601.28 ppb
2014-10-08141010612.20 ppb
2014-10-08141010621.95 ppb
2015-01-1215011433ND
2015-01-1215011434ND
2015-01-1215011429ND
2015-01-1215011436ND
2015-04-0815041204ND
2015-04-0815041203ND
2015-04-0815041202ND
2015-04-0815041201ND
2015-07-0815071247ND
2015-07-0815071246ND
2015-07-0815071245ND
2015-07-0815071253ND
2015-10-08A1503199164.39 ppb
2015-10-08A1503199182.68 ppb
2015-10-08A1503199154.48 ppb
2015-10-08A1503199173.78 ppb
2016-01-1316011325ND
2016-01-1316011326ND
2016-01-1316011328ND
2016-01-1316011327ND
2016-04-13160412770.680 ppb
2016-04-13160412780.660 ppb
2016-04-1316041279ND
2016-04-13160412800.570 ppb
2016-07-08160706732.30 ppb
2016-07-08160706761.99 ppb
2016-07-08160706752.15 ppb
2016-07-08160706742.62 ppb
2016-10-12161013323.48 ppb
2016-10-12161013333.09 ppb
2016-10-12161013343.62 ppb
2016-10-12161013353.59 ppb
2017-01-1117011017ND
2017-01-1117011020ND
2017-01-1117011018ND
2017-01-1117011019ND
2017-04-1217041224ND
2017-04-1217041225ND
2017-04-1217041226ND
2017-04-1217041223ND
2017-07-1217071219ND
2017-07-1217071220ND
2017-07-1217071221ND
2017-07-1217071222ND
2017-10-11171013961.91 ppb
2017-10-11171013952.59 ppb
2017-10-11171013942.62 ppb
2017-10-11171013932.41 ppb
2018-01-10180108550.600 ppb
2018-01-10180108560.650 ppb
2018-01-10180108570.640 ppb
2018-01-10180108580.710 ppb
2018-04-1118041044ND
2018-04-1118041045ND
2018-04-1118041046ND
2018-04-1118041047ND
2018-07-11180711100.550 ppb
2018-07-11180711080.540 ppb
2018-07-1118071107ND
2018-07-11180711090.530 ppb
2018-10-10181017170.670 ppb
2018-10-10181017180.680 ppb
2018-10-10181017190.730 ppb
2018-10-10181017200.650 ppb
2019-01-0919011087ND
2019-01-0919011093ND
2019-01-0919011095ND
2019-01-0919011100ND
2019-04-1019041415ND
2019-04-1019041420ND
2019-04-1019041416ND
2019-04-10190414141.000 ppb
2019-07-09190715760.700 ppb
2019-07-09190715780.570 ppb
2019-07-09190715801.12 ppb
2019-07-09190715810.940 ppb
2019-10-08191012541.54 ppb
2019-10-08191012551.69 ppb
2019-10-08191012561.24 ppb
2019-10-08191012571.97 ppb