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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Paris Waterworks

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

 

53

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND90ND
2016ND90ND
2017ND110ND
2018ND90ND
2019ND80ND

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
2014-01-1514017002402ND
2014-02-2514058008802ND
2014-04-0914101004002ND
2014-07-0714190002002ND
2014-10-1314289005802ND
2014-10-1314289005701ND
2014-10-1314289003902ND
2015-01-1915023002602ND
2015-01-1915023002702ND
2015-04-1415106007802ND
2015-04-1415106007702ND
2015-07-1415197009902ND
2015-07-1415197010002ND
2015-10-1415289000302ND
2015-10-1415289000402ND
2015-11-0515310001009ND
2016-01-1316015002302ND
2016-01-1316015002402ND
2016-04-1416106001102ND
2016-04-1416106001002ND
2016-07-1216196009502ND
2016-07-1216196009602ND
2016-10-1116288002901ND
2016-10-1116288002702ND
2016-10-1116288002802ND
2017-01-1017013001902ND
2017-01-1017013001802ND
2017-04-1117103005802ND
2017-04-1117103005702ND
2017-07-1217194012602ND
2017-07-1217194012502ND
2017-08-1617229005302ND
2017-08-1617229005402ND
2017-10-1717292002802ND
2017-10-1717292002902ND
2017-10-1717292003201ND
2018-01-1018011007801ND
2018-01-1018011007901ND
2018-04-1018101001202ND
2018-04-1018101001302ND
2018-07-1018192005502ND
2018-07-1018192005602ND
2018-10-0918283003102ND
2018-10-0918283002809ND
2018-10-0918283003002ND
2019-01-0719010012801ND
2019-01-1519017010802ND
2019-01-1519017010902ND
2019-07-3119213004601ND
2019-07-3119213004501ND
2019-10-0819283011501ND
2019-10-0819283011602ND
2019-10-0819283011702ND