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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Bedford Regional Water Authority (brwa)

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

 

115

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND200ND
2017ND230ND
20180.0475 ppb322ND - 1.08 ppb
2019ND400ND

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
2016-01-211601L65-01AND
2016-02-221602P81-01AND
2016-02-221602P81-03AND
2016-04-2016042291-01AND
2016-04-2616042814-05AND
2016-04-2616042814-03AND
2016-05-1616051802-01AND
2016-05-1616051802-02AND
2016-07-1816071828-03AND
2016-07-1816071828-05AND
2016-07-2116072337-01AND
2016-08-2316083360-01AND
2016-08-2316083360-02AND
2016-10-1316101669-01AND
2016-10-1716101956-03AND
2016-10-1716101956-05AND
2016-10-2716103065-01AND
2016-10-2716103065-02AND
2016-11-1416111726-01AND
2016-11-1416111726-03AND
2017-01-1217011367-01AND
2017-01-1917012031-03AND
2017-01-1917012031-05AND
2017-02-1517021950-01AND
2017-02-1517021950-03AND
2017-04-1717041917-03AND
2017-04-1717041917-05AND
2017-04-2617042938-01AND
2017-05-2317053016-01AND
2017-05-2317053016-03AND
2017-07-2017072492-01AND
2017-07-2417072744-03AND
2017-07-2417072744--05AND
2017-08-0917081608-03AND
2017-08-0917081608-01AND
2017-10-1117101459-01AND
2017-10-1117101459-03AND
2017-10-1117101459-05AND
2017-10-1117101459-07AND
2017-10-1117101459-13AND
2017-10-1117101459-09AND
2017-10-1117101459-11AND
2017-10-1117101459-15AND
2018-01-1618011706-01AND
2018-01-1618011706-03AND
2018-01-1618011706-05AND
2018-01-1618011706-07AND
2018-01-1618011706-09AND
2018-01-1618011706-11AND
2018-01-1618011706-13A1.08 ppb
2018-01-1618011706-15A0.440 ppb
2018-04-1218041724-01AND
2018-04-1218041724-03AND
2018-04-1218041724-05AND
2018-04-1218041724-07AND
2018-04-1218041724-09AND
2018-04-1218041724-11AND
2018-04-1218041724-13AND
2018-04-1218041724-15AND
2018-07-2418073115-01AND
2018-07-2418073115-03AND
2018-07-2418073115-05AND
2018-07-2418073115-07AND
2018-07-2418073115-09AND
2018-07-2418073115-11AND
2018-07-2418073115-13AND
2018-07-2418073115-15AND
2018-10-1718102482-01AND
2018-10-1718102482-03AND
2018-10-1718102482-05AND
2018-10-1718102482-07AND
2018-10-1718102482-09AND
2018-10-1718102482-11AND
2018-10-1718102482-13AND
2018-10-1718102482-15AND
2019-01-2419012822-01AND
2019-01-2419012822-04AND
2019-01-2419012822-06AND
2019-01-2419012822-08AND
2019-01-2419012822-10AND
2019-01-2419012822-12AND
2019-01-2419012822-14AND
2019-01-2419012882-16AND
2019-04-1119041634-001AND
2019-04-1119041634-005AND
2019-04-1119041634-007AND
2019-04-1119041634-009AND
2019-04-1119041634-03AND
2019-04-1119041634-11AND
2019-04-1119041634-13AND
2019-04-1119041634-15AND
2019-07-1119071661-01AND
2019-07-1119071661-03AND
2019-07-1119071661-05AND
2019-07-1119071661-07AND
2019-07-1119071661-09AND
2019-07-1119071661-11AND
2019-07-1119071661-13AND
2019-07-1119071661-15AND
2019-07-23L1122790-01ND
2019-07-23L1122790-02ND
2019-07-23L1122790-03ND
2019-07-23L1122790-04ND
2019-07-23L1122790-05ND
2019-07-23L1122790-06ND
2019-07-23L1122790-07ND
2019-07-23L1122790-08ND
2019-10-10734387001ND
2019-10-10734387004ND
2019-10-10734387006ND
2019-10-10734387008ND
2019-10-10734387010ND
2019-10-10734387012ND
2019-10-10734387014ND
2019-10-10734387016ND