Know Your Environment. Protect Your Health.

Trichloroacetic acid

Bradley Waterworks

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.189 ppb91ND - 1.70 ppb
20190.675 ppb84ND - 1.40 ppb
20202.39 ppb85ND - 13.1 ppb
2021ND80ND
20221.25 ppb108ND - 2.68 ppb
20230.544 ppb83ND - 1.58 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
2018-02-1218046002301ND
2018-02-12180460024011.70 ppb
2018-05-1418137006501ND
2018-05-1418137006601ND
2018-08-1318228002801ND
2018-08-1318228002601ND
2018-09-1818263001201ND
2018-11-1318319003401ND
2018-11-1318319003501ND
2019-02-1119045009501ND
2019-02-1119045009601ND
2019-06-18191710028011.30 ppb
2019-06-18191710027011.40 ppb
2019-08-1219227002301ND
2019-08-1219227002201ND
2019-11-05193110022011.40 ppb
2019-11-05193110021011.30 ppb
2020-01-21200230004011.10 ppb
2020-01-2120023000801ND
2020-06-02201560070011.40 ppb
2020-06-022015600690113.1 ppb
2020-08-24202390015022.10 ppb
2020-08-24202390011021.40 ppb
2020-12-0120337002201ND
2020-12-0120337002101ND
2021-03-0321063014501ND
2021-03-0321063014401ND
2021-05-2621147008901ND
2021-06-2121175001001ND
2021-08-2421238002801ND
2021-08-2421238002701ND
2021-11-2921336002801ND
2021-11-2921336002701ND
2022-02-25O195742-HAA-11.47 ppb
2022-02-25O195743-HAA-11.12 ppb
2022-05-31O198600-HAA-1ND
2022-06-20O199081-HAA-11.11 ppb
2022-09-06O201340-HAA-12.68 ppb
2022-09-06O201339-HAA-11.84 ppb
2022-09-26O202217-HAA-11.18 ppb
2022-09-26O202216-HAA-1ND
2022-11-28O204021-HAA-11.72 ppb
2022-11-28O204020-HAA-11.40 ppb
2023-02-27O206778-HAA-1ND
2023-02-27O206779-HAA-11.44 ppb
2023-06-06O209568-HAA-1ND
2023-06-06O209569-HAA-1ND
2023-08-29O211732-HAA-1ND
2023-08-29O211733-HAA-1ND
2023-11-27O214036-HAA-11.33 ppb
2023-11-27O214037-HAA-11.58 ppb