Know Your Environment. Protect Your Health.

Trichloroacetic acid

Darbonne Ws North

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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.341 ppb1810ND - 0.770 ppb
2019ND160ND
20200.0363 ppb81ND - 0.290 ppb
20210.138 ppb82ND - 0.730 ppb
20220.245 ppb83ND - 0.690 ppb
20230.0963 ppb81ND - 0.770 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
2018-02-26353765980030.660 ppb
2018-02-2635376598001ND
2018-02-26353765980020.520 ppb
2018-02-26353765980030.660 ppb
2018-02-26353765980020.520 ppb
2018-02-2635376598001ND
2018-05-29353952120020.770 ppb
2018-05-29353952120010.730 ppb
2018-05-29353952120020.770 ppb
2018-05-29353952120010.730 ppb
2018-08-1635412063001ND
2018-08-16354120630020.390 ppb
2018-08-16354120630020.390 ppb
2018-08-1635412063001ND
2018-11-1935432389001ND
2018-11-1935432389002ND
2018-11-1935432389002ND
2018-11-1935432389001ND
2019-02-2535450964002ND
2019-02-2535450964002ND
2019-02-2535450964001ND
2019-02-2535450964001ND
2019-05-2035470222001ND
2019-05-2035470222002ND
2019-05-2035470222001ND
2019-05-2035470222002ND
2019-08-1935492404002ND
2019-08-1935492404001ND
2019-08-1935492404001ND
2019-08-1935492404002ND
2019-11-1935514075002ND
2019-11-1935514075001ND
2019-11-1935514075001ND
2019-11-1935514075002ND
2020-02-1835532449001ND
2020-02-1835532449002ND
2020-05-2035551963001ND
2020-05-2035551963002ND
2020-08-1735572268001ND
2020-08-1735572268002ND
2020-11-09355919250010.290 ppb
2020-11-0935591925002ND
2021-03-2335621297001ND
2021-03-2335621297002ND
2021-05-17356349840010.370 ppb
2021-05-1735634984002ND
2021-08-1235655892002ND
2021-08-1235655892001ND
2021-11-2935680829002ND
2021-11-29356808290010.730 ppb
2022-02-1435698271001ND
2022-02-1435698271002ND
2022-05-0935718281001ND
2022-05-0935718281002ND
2022-08-0835739540002ND
2022-08-08357395400010.590 ppb
2022-11-07357588540020.680 ppb
2022-11-07357588540010.690 ppb
2023-02-13357806970010.770 ppb
2023-02-1335780697002ND
2023-05-0835799623001ND
2023-05-0835799623002ND
2023-08-0735820248001ND
2023-08-0735820248002ND
2023-11-1335842433001ND
2023-11-1335842433002ND