Know Your Environment. Protect Your Health.

Trichloroacetic acid

Sumner County Rural Water District 1

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.500 ppb41ND - 2.00 ppb
20192.23 ppb43ND - 3.40 ppb
20202.63 ppb441.10 ppb - 4.80 ppb
20211.60 ppb43ND - 4.20 ppb
20220.925 ppb42ND - 1.90 ppb
20231.41 ppb42ND - 5.00 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-27937888ND
2018-06-11986699ND
2018-09-251049135ND
2018-12-1010891442.00 ppb
2019-03-2011385312.90 ppb
2019-06-1111845212.60 ppb
2019-09-041233460ND
2019-12-1712913593.40 ppb
2020-03-2313451374.80 ppb
2020-06-2214132511.10 ppb
2020-09-2215184692.60 ppb
2020-12-0817022842.00 ppb
2021-03-241801891ND
2021-06-1418595851.10 ppb
2021-09-2919735054.20 ppb
2021-12-1420672041.10 ppb
2022-03-2122191941.90 ppb
2022-06-0822746921.80 ppb
2022-09-272366605ND
2022-12-132415175ND
2023-03-1524665360.650 ppb
2023-06-132517145ND
2023-09-262582364ND
2023-12-0526193105.00 ppb