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EWG's Tap Water Database — 2021 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.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.663 ppb168ND - 1.72 ppb
20152.70 ppb165ND - 12.8 ppb
20161.06 ppb167ND - 3.30 ppb
20170.595 ppb164ND - 2.61 ppb
20180.0394 ppb161ND - 0.630 ppb
20193.23 ppb168ND - 14.4 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
2014-01-134A13073-01ND
2014-01-134A13073-03ND
2014-01-134A13073-04ND
2014-01-134A13073-02ND
2014-04-144D14061-03ND
2014-04-144D14061-01ND
2014-04-144D14061-04ND
2014-04-144D14061-02ND
2014-07-144G14077-031.23 ppb
2014-07-144G14077-011.18 ppb
2014-07-144G14077-021.72 ppb
2014-07-144G14077-041.23 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
2015-01-1212350888ND
2015-01-1212350887ND
2015-01-1212350885ND
2015-01-1212350886ND
2015-04-1312698028ND
2015-04-1312698027ND
2015-04-1312698025ND
2015-04-1312698026ND
2015-07-1313082120ND
2015-07-13130821221.10 ppb
2015-07-1313082121ND
2015-07-1313082119ND
2015-10-121345782212.8 ppb
2015-10-121345782010.2 ppb
2015-10-121345782112.5 ppb
2015-10-12134578196.66 ppb
2016-01-1113819259ND
2016-01-1113819258ND
2016-01-1113819257ND
2016-01-1113819260ND
2016-04-11141871121.80 ppb
2016-04-11141871142.06 ppb
2016-04-11141871132.01 ppb
2016-04-11141871152.09 ppb
2016-07-1114664427ND
2016-07-1114664425ND
2016-07-1114664428ND
2016-07-1114664426ND
2016-10-10151630203.30 ppb
2016-10-1015163017ND
2016-10-10151630193.00 ppb
2016-10-10151630182.62 ppb
2017-01-1615596923ND
2017-01-1615596924ND
2017-01-1615596922ND
2017-01-1615596925ND
2017-04-1716026037ND
2017-04-1716026038ND
2017-04-1716026036ND
2017-04-1716026039ND
2017-07-1116498651ND
2017-07-1116498650ND
2017-07-1116498649ND
2017-07-1116498652ND
2017-10-17169621642.61 ppb
2017-10-17169621622.19 ppb
2017-10-17169621632.56 ppb
2017-10-17169621612.16 ppb
2018-01-168A16081-01ND
2018-01-168A16081-02ND
2018-01-168A16081-040.630 ppb
2018-01-168A16081-03ND
2018-04-178D17103-03ND
2018-04-178D17103-02ND
2018-04-178D17103-01ND
2018-04-178D17103-04ND
2018-07-178G17196-04ND
2018-07-178G17196-02ND
2018-07-178G17196-01ND
2018-07-178G17196-03ND
2018-10-162346795001ND
2018-10-162346795004ND
2018-10-162346795003ND
2018-10-162346795002ND
2019-01-159A15102-04ND
2019-01-159A15102-01ND
2019-01-159A15102-03ND
2019-01-159A15102-02ND
2019-04-169D17055-021.15 ppb
2019-04-169D17055-011.53 ppb
2019-04-169D17055-031.38 ppb
2019-04-169D17055-041.97 ppb
2019-07-169G17043-03ND
2019-07-169G17043-04ND
2019-07-169G17043-01ND
2019-07-169G17043-05ND
2019-10-159J16148-0114.0 ppb
2019-10-159J16148-027.77 ppb
2019-10-159J16148-0414.4 ppb
2019-10-159J16148-039.40 ppb