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Trichloroacetic acid

Forrest City Waterworks

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND10ND
2013ND50ND
2014ND120ND
2015ND20ND

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 trichloroacetic acid was defined by the Environmental Protection Agency 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)20.0 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
2010-06-2910181004201ND
2011-08-3111244001501ND
2012-08-2712242003301ND
2013-08-2713241000901ND
2013-11-2613331004901ND
2013-11-2613331004601ND
2013-11-2613331004801ND
2013-11-2613331004701ND
2014-03-1714079001101ND
2014-03-1714079001301ND
2014-03-1714079001201ND
2014-03-1714079001001ND
2014-06-2514177008901ND
2014-06-2514177009101ND
2014-06-2514177008801ND
2014-06-2514177009001ND
2014-08-2714240003101ND
2014-08-2714240002901ND
2014-08-2714240002501ND
2014-08-2714240003001ND
2015-04-0815099009901ND
2015-08-2415238000801ND