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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Fort Riley

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.

 

75

Samples

0

Samples exceeding legal limit (MCL)

75

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.83 ppb441.50 ppb - 4.90 ppb
20132.83 ppb771.60 ppb - 5.50 ppb
20143.80 ppb16160.770 ppb - 14.0 ppb
20151.73 ppb16160.720 ppb - 3.30 ppb
20163.83 ppb16160.600 ppb - 7.00 ppb
20172.53 ppb16160.810 ppb - 4.80 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.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
2012-01-10572307DF4.90 ppb
2012-04-02577002DF1.50 ppb
2012-07-09581153DF2.00 ppb
2012-10-09586372DF2.90 ppb
2013-01-08589283DF5.50 ppb
2013-04-09594416DF2.00 ppb
2013-07-09598310DF2.20 ppb
2013-10-15604606DF2.60 ppb
2013-10-15604609DF1.60 ppb
2013-10-15604608DF3.70 ppb
2013-10-15604607DF2.20 ppb
2014-01-07319878.70 ppb
2014-01-07319841.50 ppb
2014-01-073198514.0 ppb
2014-01-07319860.870 ppb
2014-04-211008796.40 ppb
2014-04-221008982.10 ppb
2014-04-221008782.30 ppb
2014-04-221008776.60 ppb
2014-07-151521531.20 ppb
2014-07-151521541.20 ppb
2014-07-151521553.30 ppb
2014-07-151521563.90 ppb
2014-10-212175823.10 ppb
2014-10-212175810.770 ppb
2014-10-212175841.90 ppb
2014-10-212175833.00 ppb
2015-01-272683302.30 ppb
2015-01-272683312.40 ppb
2015-01-272683321.10 ppb
2015-01-272683331.40 ppb
2015-04-143136050.970 ppb
2015-04-143136062.10 ppb
2015-04-143136042.00 ppb
2015-04-143136071.60 ppb
2015-07-143670540.720 ppb
2015-07-143670531.70 ppb
2015-07-143670522.00 ppb
2015-07-143670511.20 ppb
2015-10-144212791.10 ppb
2015-10-144212820.880 ppb
2015-10-144212803.30 ppb
2015-10-144212812.90 ppb
2016-01-124757862.90 ppb
2016-01-124757895.70 ppb
2016-01-124757875.80 ppb
2016-01-124757885.00 ppb
2016-04-065241932.40 ppb
2016-04-065241921.60 ppb
2016-04-065241903.70 ppb
2016-04-065241910.600 ppb
2016-07-055779152.10 ppb
2016-07-055779164.20 ppb
2016-07-055779141.80 ppb
2016-07-055779134.00 ppb
2016-10-046361067.00 ppb
2016-10-046361053.30 ppb
2016-10-046361046.20 ppb
2016-10-046361034.90 ppb
2017-01-236797093.10 ppb
2017-01-236797104.00 ppb
2017-01-236797084.00 ppb
2017-01-236797114.30 ppb
2017-04-107401391.80 ppb
2017-04-107401383.50 ppb
2017-04-107401371.80 ppb
2017-04-107401364.80 ppb
2017-07-318084850.940 ppb
2017-07-318084791.80 ppb
2017-07-318084831.30 ppb
2017-07-318084810.810 ppb
2017-10-028518802.10 ppb
2017-10-028518832.10 ppb
2017-10-028518821.90 ppb
2017-10-028518812.20 ppb