Know Your Environment. Protect Your Health.

Trichloroacetic acid

Milton Purchase Water System

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.870 ppb440.750 ppb - 0.990 ppb
20190.875 ppb440.800 ppb - 0.950 ppb
20200.990 ppb220.980 ppb - 1.000 ppb
20210.365 ppb21ND - 0.730 ppb
20220.909 ppb15150.770 ppb - 1.20 ppb
20230.877 ppb17170.520 ppb - 1.40 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
2018-08-24354134470010.990 ppb
2018-08-24354134470020.750 ppb
2018-08-24354134470020.750 ppb
2018-08-24354134470010.990 ppb
2019-08-02354868590020.800 ppb
2019-08-02354868590010.950 ppb
2019-08-02354868590020.800 ppb
2019-08-02354868590010.950 ppb
2020-08-20355726780010.980 ppb
2020-08-20355726780021.000 ppb
2021-08-02356527660010.730 ppb
2021-08-0235652766002ND
2022-05-05357158000011.20 ppb
2022-05-05357158000020.990 ppb
2022-05-05357158000031.000 ppb
2022-05-05357158000040.840 ppb
2022-05-05357158000050.840 ppb
2022-08-18357407610020.800 ppb
2022-08-18357407610010.910 ppb
2022-08-24357426960030.820 ppb
2022-08-24357426960020.860 ppb
2022-08-24357426960011.000 ppb
2022-11-29357634250040.960 ppb
2022-11-29357634250030.990 ppb
2022-11-29357634250020.830 ppb
2022-11-29357634250010.830 ppb
2022-11-29357634250050.770 ppb
2023-02-15357803550030.810 ppb
2023-02-15357803550050.790 ppb
2023-02-15357803550040.810 ppb
2023-02-15357803550020.660 ppb
2023-02-15357803550010.790 ppb
2023-05-11357996120040.810 ppb
2023-05-11357996120031.000 ppb
2023-05-11357996120020.810 ppb
2023-05-11357996120010.990 ppb
2023-08-17358219810011.40 ppb
2023-08-17358219810021.20 ppb
2023-08-17358219810031.20 ppb
2023-08-17358219810041.20 ppb
2023-11-03358392870010.700 ppb
2023-11-03358392870020.660 ppb
2023-11-03358392870030.560 ppb
2023-11-03358392870040.520 ppb