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Trichloroacetic acid

Klondike Independent School District

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011N/A00N/A
2012N/A00N/A
2013ND20ND
2014ND20ND
2015ND40ND

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
2010-04-21AB25643ND
2013-01-231301678011ND
2013-06-20Q1302604004ND
2014-09-03Q1440864004ND
2014-10-23Q1453729004ND
2015-01-21Q1502000003ND
2015-04-15Q1514210003ND
2015-07-13Q1526518003ND
2015-10-14Q1540708003ND