Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Dickinson

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

38

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20188.70 ppb881.07 ppb - 29.2 ppb
20191.36 ppb881.20 ppb - 1.64 ppb
20201.11 ppb87ND - 1.44 ppb
20210.924 ppb86ND - 1.35 ppb
20220.434 ppb83ND - 1.20 ppb
20231.09 ppb86ND - 1.97 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
2018-02-1318-S2341.15 ppb
2018-02-1318-S2331.07 ppb
2018-05-1418-S6891.09 ppb
2018-05-1418-S6901.24 ppb
2018-08-2018-S17525.06 ppb
2018-08-2018-S17532.51 ppb
2018-11-1318-S236029.2 ppb
2018-11-1318-S235928.3 ppb
2019-02-1219-S1821.20 ppb
2019-02-1219-S1811.28 ppb
2019-05-1319-S5871.38 ppb
2019-05-1319-S5861.22 ppb
2019-08-1919-S17121.64 ppb
2019-08-1919-S17111.34 ppb
2019-11-1219-S24221.45 ppb
2019-11-1219-S24231.40 ppb
2020-02-113610841.44 ppb
2020-02-113610851.34 ppb
2020-05-113646291.25 ppb
2020-05-113646301.10 ppb
2020-08-113701851.41 ppb
2020-08-113701871.28 ppb
2020-11-093731741.03 ppb
2020-11-09373175ND
2021-02-09376120ND
2021-02-103764861.24 ppb
2021-05-113803391.18 ppb
2021-05-113803401.35 ppb
2021-08-093843261.35 ppb
2021-08-093843271.20 ppb
2021-11-083885531.07 ppb
2021-11-08388554ND
2022-02-093918691.20 ppb
2022-02-093918701.13 ppb
2022-05-10395369ND
2022-05-10395368ND
2022-08-09399839ND
2022-08-09399838ND
2022-11-074038891.14 ppb
2022-11-07403890ND
2023-02-064075981.07 ppb
2023-02-064075971.46 ppb
2023-05-08411111ND
2023-05-08411112ND
2023-08-074149971.28 ppb
2023-08-074149981.22 ppb
2023-11-074190341.97 ppb
2023-11-074190351.70 ppb