Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Miles

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
20181.000 ppb86ND - 1.80 ppb
20191.70 ppb86ND - 3.10 ppb
20201.58 ppb84ND - 3.40 ppb
20210.900 ppb82ND - 3.70 ppb
2022ND80ND
2023ND80ND

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
2018-02-22Q1807534010ND
2018-02-22Q18075340091.20 ppb
2018-04-25Q1816852003ND
2018-04-25Q18168520011.000 ppb
2018-07-18Q18285390021.40 ppb
2018-07-18Q18285390031.30 ppb
2018-12-05Q18497590021.80 ppb
2018-12-05Q18497590031.30 ppb
2019-03-07Q19098310013.10 ppb
2019-03-07Q19098310052.90 ppb
2019-05-15Q19255800021.80 ppb
2019-05-15Q19255800032.10 ppb
2019-08-01Q19503970031.70 ppb
2019-08-01Q19503970022.00 ppb
2019-11-05Q1975103002ND
2019-11-05Q1975103003ND
2020-02-19Q2006424001ND
2020-02-19Q2006424006ND
2020-05-21Q20204170023.20 ppb
2020-05-21Q20204170033.40 ppb
2020-07-30Q20299100023.00 ppb
2020-07-30Q20299100033.00 ppb
2020-11-18Q2045810001ND
2020-11-18Q2045810002ND
2021-03-09Q2106094010ND
2021-03-09Q2106094011ND
2021-05-18Q2112972003ND
2021-05-18Q2112972004ND
2021-07-21Q21191280013.70 ppb
2021-07-21Q21191280023.50 ppb
2021-11-18Q2132327002ND
2021-11-18Q2132327003ND
2022-02-15Q2205466003ND
2022-02-15Q2205466005ND
2022-05-31Q2215365002ND
2022-05-31Q2215365003ND
2022-07-21Q2220910002ND
2022-07-21Q2220910003ND
2022-10-26Q2232283001ND
2022-10-26Q2232283002ND
2023-02-16Q2306683005ND
2023-02-16Q2306683006ND
2023-04-20Q2314829002ND
2023-04-20Q2314829003ND
2023-08-02Q2331463002ND
2023-08-02Q2331463003ND
2023-11-09Q2348205002ND
2023-11-09Q2348205003ND