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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Juneau

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.

 

85

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND110ND
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND

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
2012-02-07DB*201202110085ND
2012-02-07DB*201202110086ND
2012-05-29DB*201205310248ND
2012-05-29DB*201205310249ND
2012-08-20DB*201208240333ND
2012-08-20DB*201208240334ND
2012-10-30DT*201211020147ND
2012-10-30DT*201211020146ND
2012-11-29201212040243ND
2012-11-29201212040242ND
2013-01-28DB*201302050907ND
2013-01-28DB*201302050908ND
2013-04-09DB*201304130212ND
2013-04-09DB*201304130210ND
2013-07-09DB*201307120312ND
2013-07-09DB*201307120311ND
2013-10-14DB*201310160316ND
2013-10-14DB*201310160317ND
2013-10-14DB*201310160318ND
2013-10-14DB*201310160319ND
2013-10-14VO*201310160327ND
2014-01-06DB*201401110039ND
2014-01-06DB*201401110041ND
2014-01-06DB*201401110042ND
2014-01-06DB*201401110043ND
2014-04-01DB*201404030462ND
2014-04-01DB*201404030464ND
2014-04-01DB*201404030463ND
2014-04-01DB*201404030460ND
2014-07-07T2*3059548ND
2014-07-07T2*3059547ND
2014-07-07T2*3059545ND
2014-07-07T2*3059546ND
2014-10-06DT*3120396ND
2014-10-06DT*3120402ND
2014-10-06DT*3120400ND
2014-10-06DT*3120398ND
2015-01-12DT*3172560ND
2015-01-12DT*3172561ND
2015-01-12DT*3172562ND
2015-01-12DT*3172563ND
2015-04-06DT*3219949ND
2015-04-06DT*3219945ND
2015-04-06DT*3219943ND
2015-04-06DT*3219947ND
2015-07-06DT*3275773ND
2015-07-06DT*3275774ND
2015-07-06DT*3275775ND
2015-07-06DT*3275776ND
2015-10-05DT*3336176ND
2015-10-05DT*3336175ND
2015-10-05DT*3336174ND
2015-10-05DT*3336173ND
2016-01-04DT*3382673ND
2016-01-04DT*3382674ND
2016-01-04DT*3382675ND
2016-01-04DT*3382676ND
2016-04-04DT*3426423ND
2016-04-04DT*3426422ND
2016-04-04DT*3426421ND
2016-04-04DT*3426420ND
2016-07-18DT*3499732ND
2016-07-18DT*3499733ND
2016-07-18DT*3499734ND
2016-07-18DT*3499735ND
2016-10-03DB*3559112ND
2016-10-03DB*3559111ND
2016-10-03DB*3559110ND
2016-10-03DB*3559113ND
2017-01-09DT*3619069ND
2017-01-09DT*3619070ND
2017-01-09DT*3619071ND
2017-01-09DT*3619072ND
2017-04-03DT*3667842ND
2017-04-03DT*3667845ND
2017-04-03DT*3667844ND
2017-04-03DT*3667843ND
2017-07-03DT*3726832ND
2017-07-03DT*3726833ND
2017-07-03DT*3726834ND
2017-07-03DT*3726835ND
2017-10-02DT*3791853ND
2017-10-02DT*3791854ND
2017-10-02DT*3791855ND
2017-10-02DT*3791856ND