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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Sw Boone County Water Association

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

 

63

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND80ND
2016ND100ND
2017ND120ND
2018ND100ND
2019ND110ND

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
2014-01-2114023003601ND
2014-02-1714051007102ND
2014-02-1714051007302ND
2014-04-2914121005202ND
2014-04-2914121005302ND
2014-04-2914121003109ND
2014-07-2814212001602ND
2014-07-2814212001302ND
2014-08-1914233003809ND
2014-10-2814303008202ND
2014-10-2814303008502ND
2014-10-2814303006502ND
2015-01-2715029009302ND
2015-04-2815120005602ND
2015-07-0715190010602ND
2015-07-0715190009502ND
2015-07-2815210001001ND
2015-10-2815302004502ND
2015-10-2815302004302ND
2015-10-2815302004401ND
2016-01-2116025006901ND
2016-05-1716140011102ND
2016-05-1716140011302ND
2016-05-1716140011202ND
2016-07-1816203007401ND
2016-08-2316237000802ND
2016-08-2316237000702ND
2016-11-1516321009801ND
2016-11-1516321010002ND
2016-11-1516321009902ND
2017-02-0617040000701ND
2017-02-0617040000802ND
2017-02-0617040000902ND
2017-04-2517117003409ND
2017-04-2517117003602ND
2017-04-2517117003502ND
2017-07-2517207001908ND
2017-07-2517207001802ND
2017-07-2517207001502ND
2017-10-2417299004702ND
2017-10-2417299004802ND
2017-10-2517299005901ND
2018-01-2418025010402ND
2018-05-0818129001902ND
2018-05-0818129001802ND
2018-05-0818129001702ND
2018-07-3118213007402ND
2018-07-3118213007702ND
2018-07-3118213007301ND
2018-10-3018304001902ND
2018-10-3018304001602ND
2018-10-3018304001501ND
2019-01-2919031007301ND
2019-01-2919031007702ND
2019-01-2919031007402ND
2019-04-3019122005602ND
2019-04-3019122005902ND
2019-04-3019122005502ND
2019-07-2319205003401ND
2019-07-3019212006802ND
2019-07-3019212006502ND
2019-10-3019305001002ND
2019-10-3019305001102ND