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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Petersburg

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

 

88

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
20160.0938 ppb161ND - 1.50 ppb
20170.540 ppb123ND - 2.72 ppb
20180.512 ppb165ND - 2.07 ppb
2019ND120ND

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
2014-01-1614-T1PET02ND
2014-01-1614-T1PET06ND
2014-01-1614-T1PET04ND
2014-01-1614-T1PET05ND
2014-04-0914-T2PET05ND
2014-04-0914-T2PET02ND
2014-04-0914-T2PET06ND
2014-04-0914-T2PET04ND
2014-07-0914-T3PET04ND
2014-07-0914-T3PET06ND
2014-07-0914-T3PET02ND
2014-07-0914-T3PET05ND
2014-10-0814-T4PET04ND
2014-10-0814-T4PET05ND
2014-10-0814-T4PET06ND
2014-10-0814-T4PET02ND
2015-01-0900005-APPOMATTOXND
2015-01-0900005-APPOMATTOXND
2015-01-0900005-APPOMATTOXND
2015-01-0900005-APPOMATTOXND
2015-05-04460260-EUROFINSND
2015-05-04460260-EUROFINSND
2015-05-04460260-EUROFINSND
2015-05-04460260-EUROFINSND
2015-07-08460260-EUROFINSND
2015-07-08460260-EUROFINSND
2015-07-08460260-EUROFINSND
2015-07-08460260-EUROFINSND
2015-10-12460260-EUROFINSND
2015-10-12460260-EUROFINSND
2015-10-12460260-EUROFINSND
2015-10-12460260-EUROFINSND
2016-01-1116-T1PET04ND
2016-01-1116-T1PET06ND
2016-01-1116-T1PET05ND
2016-01-1116-T1PET02ND
2016-04-1116-T2PET02ND
2016-04-1116-T2PET04ND
2016-04-1116-T2PET05ND
2016-04-1116-T2PET06ND
2016-07-1216-T3PET02ND
2016-07-1216-T3PET04ND
2016-07-1216-T3PET05ND
2016-07-1216-T3PET06ND
2016-10-1216-T4PET04ND
2016-10-1216-T4PET06ND
2016-10-1216-T4PET021.50 ppb
2016-10-1216-T4PET05ND
2017-01-2517-T1PET02ND
2017-01-2517-T1PET04ND
2017-01-2517-T1PET05ND
2017-01-2517-T1PET06ND
2017-07-1317-T3PET06ND
2017-07-1317-T3PET022.72 ppb
2017-07-1317-T3PET052.13 ppb
2017-07-1317-T3PET041.63 ppb
2017-10-1817-T4PET02ND
2017-10-1817-T4PET04ND
2017-10-1817-T4PET05ND
2017-10-1817-T4PET06ND
2018-01-1018-T1PET06ND
2018-01-1018-T1PET05ND
2018-01-1018-T1PET04ND
2018-01-1018-T1PET021.20 ppb
2018-04-1118-T2PET061.25 ppb
2018-04-1118-T2PET021.89 ppb
2018-04-1118-T2PET042.07 ppb
2018-04-1118-T2PET051.78 ppb
2018-07-1818-T3PET02ND
2018-07-1818-T3PET04ND
2018-07-1818-T3PET05ND
2018-07-1818-T3PET06ND
2018-10-0218-T4PET02ND
2018-10-0218-T4PET04ND
2018-10-0218-T4PET05ND
2018-10-0218-T4PET06ND
2019-04-1019D0507-01-TTHMND
2019-04-1019D0507-02-TTHMND
2019-04-1019D0507-03-TTHMND
2019-04-1019D0507-04-TTHMND
2019-07-30E190703528ND
2019-07-30E190703544ND
2019-07-30E190703542ND
2019-07-30E190703526ND
2019-10-23E191004274ND
2019-10-23E191004272ND
2019-10-23E191004271ND
2019-10-31E191006113ND