Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of La Joya

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)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.23 ppb83ND - 11.5 ppb
20190.675 ppb84ND - 2.00 ppb
20204.30 ppb86ND - 12.5 ppb
20214.84 ppb881.000 ppb - 9.60 ppb
20220.713 ppb85ND - 1.30 ppb
20231.49 ppb881.10 ppb - 2.00 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
2018-03-08AE17496ND
2018-03-08AE17495ND
2018-06-11AE2977811.5 ppb
2018-06-11AE29775ND
2018-08-28AE386609.50 ppb
2018-08-28AE386644.80 ppb
2018-12-05AE48177ND
2018-12-05AE48183ND
2019-01-17AE50380ND
2019-01-17AE50381ND
2019-06-07AE697041.20 ppb
2019-06-07AE697052.00 ppb
2019-09-13AE835321.10 ppb
2019-09-13AE835251.10 ppb
2019-12-06AE91845ND
2019-12-06AE91865ND
2020-03-10AF02238ND
2020-03-10AF02239ND
2020-05-20AF123593.70 ppb
2020-05-20AF123602.60 ppb
2020-08-27AF255971.30 ppb
2020-08-27AF255992.70 ppb
2020-12-02AF3663512.5 ppb
2020-12-02AF3663711.6 ppb
2021-03-03AF450729.00 ppb
2021-03-03AF450749.60 ppb
2021-06-09AF571665.60 ppb
2021-06-09AF571676.50 ppb
2021-09-17AF706051.000 ppb
2021-09-17AF706062.30 ppb
2021-11-19AF771981.70 ppb
2021-11-19AF772023.00 ppb
2022-01-27AF821481.30 ppb
2022-01-27AF82155ND
2022-06-30AG029821.30 ppb
2022-06-30AG029841.000 ppb
2022-08-17AG096671.10 ppb
2022-09-27AG14982ND
2022-12-07AG213001.000 ppb
2022-12-07AG21301ND
2023-03-22AG337821.10 ppb
2023-03-22AG337832.00 ppb
2023-05-12AG406101.30 ppb
2023-05-12AG406111.40 ppb
2023-07-27AG503381.80 ppb
2023-07-27AG503401.40 ppb
2023-11-02AG621481.50 ppb
2023-11-02AG621531.40 ppb