Know Your Environment. Protect Your Health.

Trichloroacetic acid

Pleasant City, Village of

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20191.70 ppb42ND - 3.60 ppb
20201.01 ppb86ND - 1.70 ppb
20210.0750 ppb82ND - 0.300 ppb
20220.513 ppb82ND - 2.30 ppb
20230.213 ppb81ND - 1.70 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
2018-09-11A180626709ND
2018-09-11A180626708ND
2019-08-209H03366-013.20 ppb
2019-08-209H03366-023.60 ppb
2019-11-129K01404-01ND
2019-11-129K01404-02ND
2020-02-110B01237-021.70 ppb
2020-02-110B01237-011.30 ppb
2020-05-120E01638-021.60 ppb
2020-05-120E01638-011.40 ppb
2020-08-110H01710-021.000 ppb
2020-08-110H01710-011.10 ppb
2020-11-100K01151-02ND
2020-11-100K01151-01ND
2021-02-091B01147-03ND
2021-02-091B01147-02ND
2021-05-111E01400-020.300 ppb
2021-05-111E01400-010.300 ppb
2021-08-101H01712-01ND
2021-08-101H01712-02ND
2021-11-091K01209-02ND
2021-11-091K01209-01ND
2022-02-082B00906-01ND
2022-02-082B00906-02ND
2022-05-102E01411-01ND
2022-05-102E01411-02ND
2022-08-122H02898-01ND
2022-08-122H02898-02ND
2022-11-082K01328-022.30 ppb
2022-11-082K01328-011.80 ppb
2023-02-143B01938-01ND
2023-02-143B01938-02ND
2023-05-143E02565-01ND
2023-05-143E02565-02ND
2023-08-083H01676-01ND
2023-08-083H01676-02ND
2023-11-143K02051-01ND
2023-11-143K02051-021.70 ppb