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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Mountain Home 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

 

107

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND170ND
2015ND170ND
2016ND170ND
2017ND200ND
2018ND190ND
2019ND170ND

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
2014-03-1114072005702ND
2014-03-1114072006502ND
2014-03-1114072005502ND
2014-03-1114072005602ND
2014-03-1114072005802ND
2014-05-0614128005502ND
2014-05-0614128005802ND
2014-05-0614128005602ND
2014-05-0614128005702ND
2014-08-1814232000102ND
2014-08-1814232000902ND
2014-08-1814232000402ND
2014-08-1814232000502ND
2014-11-1914324009902ND
2014-11-1914324010002ND
2014-11-1914324009802ND
2014-11-1914324010102ND
2015-02-2415057000602ND
2015-02-2415057000309ND
2015-02-2415057000402ND
2015-02-2415057000502ND
2015-02-2415057000702ND
2015-05-1915141001202ND
2015-05-1915141001102ND
2015-05-1915141001002ND
2015-05-1915141000902ND
2015-08-3115245001102ND
2015-08-3115245001002ND
2015-08-3115245001202ND
2015-08-3115245000602ND
2015-11-1715323001802ND
2015-11-1715323002002ND
2015-11-1715323002102ND
2015-11-1715323001902ND
2016-01-2616029002302ND
2016-02-1616049002202ND
2016-02-1616049002102ND
2016-02-1616049002002ND
2016-02-1616049001902ND
2016-05-2416147007802ND
2016-05-2416147008102ND
2016-05-2416147008002ND
2016-05-2416147007902ND
2016-08-1516230003002ND
2016-08-1516230001802ND
2016-08-1516230001902ND
2016-08-1516230003102ND
2016-11-0816314007602ND
2016-11-0816314007702ND
2016-11-0816314007902ND
2016-11-0816314007802ND
2017-01-2317026000501ND
2017-02-1317047000502ND
2017-02-1317047000602ND
2017-02-1317047000802ND
2017-02-1317047000902ND
2017-04-0417095001102ND
2017-05-1517138010002ND
2017-05-1517138009902ND
2017-05-1517138009702ND
2017-05-1517138009802ND
2017-07-0417187008501ND
2017-08-0717222012602ND
2017-08-0717222012302ND
2017-08-0717222012402ND
2017-08-0717222012502ND
2017-10-0317278012701ND
2017-11-0817313011402ND
2017-11-0817313011302ND
2017-11-0817313011502ND
2017-11-0817313011202ND
2018-01-0918010003109ND
2018-02-1518047000402ND
2018-02-1518047000102ND
2018-02-1518047000502ND
2018-02-1518047000602ND
2018-04-0318094001809ND
2018-05-1518137010802ND
2018-05-1518137011102ND
2018-05-1518137010902ND
2018-05-1518137011002ND
2018-07-0218186010201ND
2018-08-1418228005302ND
2018-08-1418228005202ND
2018-08-1418228005402ND
2018-08-1418228005502ND
2018-11-1418319009002ND
2018-11-1418319008902ND
2018-11-1418319009102ND
2018-11-1418319009202ND
2019-01-0919010011302ND
2019-02-1219044002802ND
2019-02-1219044002902ND
2019-02-1219044003002ND
2019-02-1219044002702ND
2019-05-1419135000702ND
2019-05-1419135001502ND
2019-05-1419135001202ND
2019-05-1419135001302ND
2019-08-1319226007402ND
2019-08-1319226007202ND
2019-08-1319226007102ND
2019-08-1319226007302ND
2019-11-0519311007902ND
2019-11-0519311008002ND
2019-11-0519311007802ND
2019-11-0519311007702ND