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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Authority of Boro of Charleroi

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.20 ppb167ND - 15.8 ppb
20130.712 ppb165ND - 3.22 ppb
20140.663 ppb168ND - 1.72 ppb
20152.70 ppb165ND - 12.8 ppb
20161.06 ppb167ND - 3.30 ppb
20170.595 ppb164ND - 2.61 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
2012-01-232A230720.790 ppb
2012-01-232A23072ND
2012-01-232A23072ND
2012-01-232A23072ND
2012-04-022D02062ND
2012-04-022D020620.520 ppb
2012-04-022D02062ND
2012-04-022D02062ND
2012-07-012G020608.30 ppb
2012-07-022G0206011.5 ppb
2012-07-022G0206013.3 ppb
2012-07-022G0206015.8 ppb
2012-12-102L10072ND
2012-12-102L100721.02 ppb
2012-12-102L10072ND
2012-12-102L10072ND
2013-01-213A21060ND
2013-01-213A21060ND
2013-01-213A210600.900 ppb
2013-01-213A21060ND
2013-04-153D15044ND
2013-04-153D15044ND
2013-04-153D15044ND
2013-04-153D15044ND
2013-07-083G08063ND
2013-07-083G08063ND
2013-07-083G08063ND
2013-07-083G08063ND
2013-10-143J140633.22 ppb
2013-10-143J140631.44 ppb
2013-10-143J140632.89 ppb
2013-10-143J140632.94 ppb
2014-01-134A13073-01ND
2014-01-134A13073-04ND
2014-01-134A13073-02ND
2014-01-134A13073-03ND
2014-04-144D14061-01ND
2014-04-144D14061-03ND
2014-04-144D14061-02ND
2014-04-144D14061-04ND
2014-07-144G14077-041.23 ppb
2014-07-144G14077-011.18 ppb
2014-07-144G14077-031.23 ppb
2014-07-144G14077-021.72 ppb
2014-10-134J13067-021.13 ppb
2014-10-134J13067-011.58 ppb
2014-10-134J13067-041.28 ppb
2014-10-134J13067-031.25 ppb
2015-01-1212350887ND
2015-01-1212350885ND
2015-01-1212350888ND
2015-01-1212350886ND
2015-04-1312698025ND
2015-04-1312698027ND
2015-04-1312698028ND
2015-04-1312698026ND
2015-07-1313082120ND
2015-07-13130821221.10 ppb
2015-07-1313082119ND
2015-07-1313082121ND
2015-10-12134578196.66 ppb
2015-10-121345782212.8 ppb
2015-10-121345782010.2 ppb
2015-10-121345782112.5 ppb
2016-01-1113819260ND
2016-01-1113819259ND
2016-01-1113819258ND
2016-01-1113819257ND
2016-04-11141871142.06 ppb
2016-04-11141871121.80 ppb
2016-04-11141871132.01 ppb
2016-04-11141871152.09 ppb
2016-07-1114664426ND
2016-07-1114664427ND
2016-07-1114664428ND
2016-07-1114664425ND
2016-10-10151630203.30 ppb
2016-10-10151630193.00 ppb
2016-10-10151630182.62 ppb
2016-10-1015163017ND
2017-01-1615596923ND
2017-01-1615596925ND
2017-01-1615596922ND
2017-01-1615596924ND
2017-04-1716026038ND
2017-04-1716026039ND
2017-04-1716026036ND
2017-04-1716026037ND
2017-07-1116498651ND
2017-07-1116498649ND
2017-07-1116498652ND
2017-07-1116498650ND
2017-10-17169621612.16 ppb
2017-10-17169621642.61 ppb
2017-10-17169621622.19 ppb
2017-10-17169621632.56 ppb