Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Goldthwaite

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.420 ppb52ND - 1.10 ppb
20190.763 ppb82ND - 4.40 ppb
20202.04 ppb87ND - 5.00 ppb
20211.70 ppb881.000 ppb - 3.40 ppb
20221.28 ppb85ND - 3.50 ppb
20230.950 ppb85ND - 2.40 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
2018-01-18AE09243ND
2018-04-30AE243791.10 ppb
2018-08-23AE38264ND
2018-10-01AE421811.000 ppb
2018-10-01AE42182ND
2019-02-28AE56539ND
2019-02-28AE56540ND
2019-05-02AE645864.40 ppb
2019-05-02AE646161.70 ppb
2019-08-06AE77188ND
2019-08-06AE77193ND
2019-10-22AE87183ND
2019-10-22AE87182ND
2020-01-16AE939371.10 ppb
2020-01-16AE939401.30 ppb
2020-04-07AF058542.60 ppb
2020-04-07AF058553.30 ppb
2020-07-07AF182022.00 ppb
2020-07-07AF182041.000 ppb
2020-11-09AF33585ND
2020-11-09AF335865.00 ppb
2021-03-01AF446191.000 ppb
2021-03-01AF446171.000 ppb
2021-04-12AF497531.10 ppb
2021-04-12AF497541.60 ppb
2021-07-08AF610632.30 ppb
2021-07-08AF610653.40 ppb
2021-10-07AF725342.00 ppb
2021-10-07AF725351.20 ppb
2022-01-27AF821942.30 ppb
2022-01-27AF821963.50 ppb
2022-04-14AF93349ND
2022-04-14AF933501.60 ppb
2022-07-14AG046791.30 ppb
2022-07-14AG046821.50 ppb
2022-10-20AG17781ND
2022-10-20AG17782ND
2023-01-11AG24002ND
2023-01-11AG24004ND
2023-04-06AG357731.70 ppb
2023-04-06AG357761.10 ppb
2023-08-23AG536612.40 ppb
2023-08-23AG536631.40 ppb
2023-10-25AG610341.000 ppb
2023-10-25AG61035ND