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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Malvern 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

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND170ND
2016ND170ND
2017ND170ND
2018ND170ND
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
2014-01-1414016007002ND
2014-01-1414016007202ND
2014-01-1414016007102ND
2014-01-1414016006902ND
2014-04-0814100008102ND
2014-04-0814100008202ND
2014-04-0814100008002ND
2014-04-0814100007902ND
2014-07-0714191003602ND
2014-07-0714191004302ND
2014-07-0714191003702ND
2014-07-0714191004202ND
2014-10-0214276002202ND
2014-10-0214276002302ND
2014-10-0214276002102ND
2014-10-0214276002402ND
2014-11-1714324002401ND
2015-01-0715008006202ND
2015-01-0715008006302ND
2015-01-0715008006002ND
2015-01-0715008006102ND
2015-04-0915100003502ND
2015-04-0915100003702ND
2015-04-0915100003802ND
2015-04-0915100003602ND
2015-07-0715190004502ND
2015-07-0715190004602ND
2015-07-0715190004302ND
2015-07-0715190004402ND
2015-10-0715282003401ND
2015-10-0815282004902ND
2015-10-0815282004802ND
2015-10-0815282004602ND
2015-10-0815282004702ND
2016-01-0616008011102ND
2016-01-0616008011002ND
2016-01-0616008010902ND
2016-01-0616008010802ND
2016-04-0516098013302ND
2016-04-0516098013402ND
2016-04-0516098013502ND
2016-04-0516098013602ND
2016-07-0416189012002ND
2016-07-0416189011902ND
2016-07-0416189012102ND
2016-07-0516189011802ND
2016-10-0416280007102ND
2016-10-0416280007002ND
2016-10-0416280006902ND
2016-10-0416280007202ND
2016-11-2216327002801ND
2017-01-0317005009402ND
2017-01-0317005009302ND
2017-01-0317005009202ND
2017-01-0317005009502ND
2017-04-0317096005102ND
2017-04-0317096005302ND
2017-04-0317096005202ND
2017-04-0317096005002ND
2017-07-0317186000402ND
2017-07-0317186000602ND
2017-07-0317186000502ND
2017-07-0317186000302ND
2017-10-0217278006401ND
2017-10-0217278006702ND
2017-10-0217278006802ND
2017-10-0217278006602ND
2017-10-0217278006502ND
2018-01-0418005004002ND
2018-01-0418005003802ND
2018-01-0418005003702ND
2018-01-0418005003902ND
2018-04-0218095006202ND
2018-04-0318095006402ND
2018-04-0318095006102ND
2018-04-0318095006302ND
2018-07-0318186001002ND
2018-07-0318186000902ND
2018-07-0318186001102ND
2018-07-0318186001202ND
2018-10-0218277015502ND
2018-10-0218277015602ND
2018-10-0218277015702ND
2018-10-0218277015802ND
2018-10-0218277016002ND
2019-01-0819010003902ND
2019-01-0819010004102ND
2019-01-0819010004002ND
2019-01-0819010003802ND
2019-04-0219094008502ND
2019-04-0219094008602ND
2019-04-0219094008702ND
2019-04-0219094008402ND
2019-07-1019192000202ND
2019-07-1019192000102ND
2019-07-1019192000302ND
2019-07-1019192000402ND
2019-10-0219277001201ND
2019-10-0219277001502ND
2019-10-0219277001002ND
2019-10-0219277001402ND
2019-12-0419339005702ND