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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

City of Gulfport

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND50ND
20140.0675 ppb161ND - 1.08 ppb
2015N/A00N/A
2016ND20ND
2017ND20ND

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
2012-06-05120606-003THND
2013-06-03130604-016THND
2013-12-16131217-022THND
2013-12-16131217-021THND
2013-12-16131217-007THND
2013-12-16131217-006THND
2014-03-17140318-015THND
2014-03-17140318-016THND
2014-03-17140318-017THND
2014-03-17140318-018THND
2014-06-18140619-016THND
2014-06-18140619-015THND
2014-06-18140619-014THND
2014-06-18140619-013THND
2014-06-18140619-012THND
2014-06-18140619-011THND
2014-09-17140918-010TH1.08 ppb
2014-09-17140918-011THND
2014-09-17140918-012THND
2014-09-17140918-024THND
2014-09-17140918-030THND
2014-09-17140918-031THND
2016-12-01161202-004THND
2016-12-01161202-003THND
2017-07-31170801-021THND
2017-07-31170801-020THND