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Bromoform

South Central Water Assn

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND20ND
2011ND10ND
2012ND20ND
2013ND70ND
2014ND160ND
2015ND160ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.5 ppb

The 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.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-02-16100217-002THND
2010-08-10100811-002THND
2011-07-18110719-015THND
2012-02-28120229-010THND
2012-10-30121031-007THND
2013-02-13130214-002THND
2013-04-16130417-002THND
2013-07-17130718-022THND
2013-10-23131024-019THND
2013-10-23131024-020THND
2013-10-23131024-029THND
2013-10-23131024-030THND
2014-01-29140130-004THND
2014-01-30140130-003THND
2014-01-30140130-002THND
2014-01-30140130-001THND
2014-04-30140501-021THND
2014-04-30140501-022THND
2014-04-30140501-024THND
2014-04-30140501-023THND
2014-07-30140731-039THND
2014-07-30140731-038THND
2014-07-30140731-037THND
2014-07-30140731-036THND
2014-10-29141031-004THND
2014-10-29141031-003THND
2014-10-29141031-001THND
2014-10-29141031-002THND
2015-01-26150127-015THND
2015-01-26150127-016THND
2015-01-26150127-017THND
2015-01-26150127-018THND
2015-04-29150430-023THND
2015-04-29150430-024THND
2015-04-29150430-025THND
2015-04-29150430-026THND
2015-07-29150730-021THND
2015-07-29150730-022THND
2015-07-29150730-023THND
2015-07-29150730-024THND
2015-10-28151029-024THND
2015-10-28151029-023THND
2015-10-28151029-022THND
2015-10-28151029-021THND