Know Your Environment. Protect Your Health.

Trichloroacetic acid

Comanche Harbor & Port Ocall

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.325 ppb41ND - 1.30 ppb
20200.250 ppb41ND - 1.000 ppb
20210.925 ppb42ND - 2.30 ppb
20220.800 ppb42ND - 2.20 ppb
20230.375 ppb41ND - 1.50 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
2018-01-22Q1802344018ND
2018-05-31Q1821632001ND
2018-07-23Q1829050001ND
2018-10-03Q1839558001ND
2019-01-30Q1904579001ND
2019-04-18Q1915699008ND
2019-08-27Q19598600011.30 ppb
2019-11-06Q1976021001ND
2020-01-28Q2003195001ND
2020-04-27Q2016257001ND
2020-07-30Q20298930071.000 ppb
2020-10-07Q2039326001ND
2021-03-08Q2105930001ND
2021-04-14Q2109651012ND
2021-08-09Q21210050011.40 ppb
2021-10-21Q21297850012.30 ppb
2022-02-17Q2205935005ND
2022-04-28Q2212750001ND
2022-07-18Q22205340012.20 ppb
2022-10-31Q22330530011.000 ppb
2023-01-26Q2303721001ND
2023-04-12Q2313631001ND
2023-08-15Q23340330021.50 ppb
2023-11-30Q2351053001ND