Know Your Environment. Protect Your Health.

Trichloroacetic acid

Fort Bend County Municipal Utility District 128

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.375 ppb41ND - 1.50 ppb
20200.467 ppb31ND - 1.40 ppb
20211.23 ppb43ND - 2.40 ppb
20220.350 ppb41ND - 1.40 ppb
20230.500 ppb42ND - 1.000 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
2018-01-25AE10474ND
2018-06-21AE30948ND
2018-08-14AE36826ND
2018-10-24AE44456ND
2019-01-22AE50686ND
2019-04-09AE61576ND
2019-09-11AE82993ND
2019-11-19AE897501.50 ppb
2020-02-13AE984141.40 ppb
2020-05-29AF13356ND
2020-07-10AF19102ND
2021-02-11AF436932.40 ppb
2021-04-22AF510881.30 ppb
2021-07-21AF62808ND
2021-10-19AF739051.20 ppb
2022-01-25AF815841.40 ppb
2022-04-18AF93509ND
2022-09-28AG15215ND
2022-12-14AG21794ND
2023-02-01AG270861.000 ppb
2023-05-11AG402891.000 ppb
2023-07-21Q2330356001ND
2023-12-12AG66321ND