Know Your Environment. Protect Your Health.

Trichloroacetic acid

City Of Glen Rose

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)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.28 ppb86ND - 3.10 ppb
20192.31 ppb86ND - 10.00 ppb
20201.39 ppb84ND - 4.00 ppb
20210.350 ppb81ND - 2.80 ppb
2022ND80ND
20230.163 ppb81ND - 1.30 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
2018-02-15Q18066070021.000 ppb
2018-02-15Q1806607001ND
2018-04-26Q18171290021.000 ppb
2018-04-26Q18171290011.10 ppb
2018-08-08Q18317170093.10 ppb
2018-08-08Q18317170192.60 ppb
2018-10-31Q1843725001ND
2018-10-31Q18437250021.40 ppb
2019-02-13Q19066320011.60 ppb
2019-02-13Q19066320021.40 ppb
2019-05-01Q19175150091.90 ppb
2019-05-01Q19175150222.10 ppb
2019-08-13Q19544820031.50 ppb
2019-08-13Q1954482002ND
2019-11-05Q1975061001ND
2019-11-05Q197506100210.00 ppb
2020-02-27Q2007409001ND
2020-02-27Q20074090021.10 ppb
2020-06-02Q2021724001ND
2020-06-02Q20217240023.00 ppb
2020-09-21Q2037371009ND
2020-09-21Q2037371010ND
2020-11-24Q20468900194.00 ppb
2020-11-24Q20468900203.00 ppb
2021-03-17Q21069840072.80 ppb
2021-03-17Q2106984008ND
2021-06-01Q2114022020ND
2021-06-01Q2114022021ND
2021-09-01Q2123787011ND
2021-09-01Q2123787012ND
2021-12-02Q2133430002ND
2021-12-02Q2133430003ND
2022-02-22Q2206242006ND
2022-02-22Q2206242007ND
2022-05-09Q2213793001ND
2022-05-09Q2213793002ND
2022-08-01Q2221903001ND
2022-08-01Q2221903002ND
2022-11-03Q2233476017ND
2022-11-03Q2233476018ND
2023-01-11Q2301770007ND
2023-01-11Q2301770008ND
2023-04-05Q2312645003ND
2023-04-05Q2312645004ND
2023-07-10Q2326570002ND
2023-07-10Q2326570003ND
2023-10-11Q2343453026ND
2023-10-11Q23434530271.30 ppb