Know Your Environment. Protect Your Health.

Trichloroacetic acid

LPWD South

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.

 

129

Samples

0

Samples exceeding legal limit (MCL)

128

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.973 ppb32320.720 ppb - 2.10 ppb
20190.790 ppb32320.570 ppb - 0.940 ppb
20200.656 ppb17170.490 ppb - 0.940 ppb
20210.691 ppb1615ND - 1.000 ppb
20220.876 ppb16160.580 ppb - 1.20 ppb
20230.809 ppb16160.460 ppb - 1.10 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
2018-02-08353740390010.820 ppb
2018-02-08353740390020.740 ppb
2018-02-08353740390030.940 ppb
2018-02-08353740390040.870 ppb
2018-02-08353740390010.820 ppb
2018-02-08353740390020.740 ppb
2018-02-08353740390030.940 ppb
2018-02-08353740390040.870 ppb
2018-05-03353903380010.940 ppb
2018-05-03353903380020.970 ppb
2018-05-03353903380030.960 ppb
2018-05-03353903380040.930 ppb
2018-05-03353903380010.940 ppb
2018-05-03353903380020.970 ppb
2018-05-03353903380030.960 ppb
2018-05-03353903380040.930 ppb
2018-08-02354086080010.750 ppb
2018-08-02354086080021.20 ppb
2018-08-02354086080032.10 ppb
2018-08-02354086080040.720 ppb
2018-08-02354086080010.750 ppb
2018-08-02354086080021.20 ppb
2018-08-02354086080032.10 ppb
2018-08-02354086080040.720 ppb
2018-11-15354322820010.820 ppb
2018-11-15354322820020.820 ppb
2018-11-15354322820030.990 ppb
2018-11-15354322820041.000 ppb
2018-11-15354322820010.820 ppb
2018-11-15354322820020.820 ppb
2018-11-15354322820030.990 ppb
2018-11-15354322820041.000 ppb
2019-02-06354470790010.780 ppb
2019-02-06354470790020.800 ppb
2019-02-06354470790030.900 ppb
2019-02-06354470790040.850 ppb
2019-02-06354470790010.780 ppb
2019-02-06354470790020.800 ppb
2019-02-06354470790030.900 ppb
2019-02-06354470790040.850 ppb
2019-05-09354682930010.760 ppb
2019-05-09354682930020.810 ppb
2019-05-09354682930030.940 ppb
2019-05-09354682930040.880 ppb
2019-05-09354682930010.760 ppb
2019-05-09354682930020.810 ppb
2019-05-09354682930030.940 ppb
2019-05-09354682930040.880 ppb
2019-08-02354868570010.810 ppb
2019-08-02354868570020.870 ppb
2019-08-02354868570030.930 ppb
2019-08-02354868570040.810 ppb
2019-08-02354868570010.810 ppb
2019-08-02354868570020.870 ppb
2019-08-02354868570030.930 ppb
2019-08-02354868570040.810 ppb
2019-11-12355126640010.570 ppb
2019-11-12355126640020.630 ppb
2019-11-12355126640030.700 ppb
2019-11-12355126640040.600 ppb
2019-11-12355126640010.570 ppb
2019-11-12355126640020.630 ppb
2019-11-12355126640030.700 ppb
2019-11-12355126640040.600 ppb
2020-02-06355294850010.600 ppb
2020-02-06355294850020.570 ppb
2020-02-06355294850030.660 ppb
2020-02-06355294850040.580 ppb
2020-05-01355471670010.510 ppb
2020-05-01355471670020.490 ppb
2020-05-01355471670030.550 ppb
2020-05-01355471670040.520 ppb
2020-08-13355708740010.600 ppb
2020-08-13355708740020.700 ppb
2020-08-13355708740030.770 ppb
2020-08-13355708740040.740 ppb
2020-11-09355913410010.740 ppb
2020-11-09355913410020.780 ppb
2020-11-09355913410030.940 ppb
2020-11-09355913410040.830 ppb
2020-11-20355940570010.580 ppb
2021-02-1035611838001ND
2021-02-10356118380020.670 ppb
2021-02-10356118380030.790 ppb
2021-02-10356118380040.640 ppb
2021-05-13356338260010.400 ppb
2021-05-13356338260020.430 ppb
2021-05-13356338260030.640 ppb
2021-05-13356338260040.500 ppb
2021-08-26356596360011.000 ppb
2021-08-26356596360021.000 ppb
2021-08-26356596360030.950 ppb
2021-08-26356596360040.990 ppb
2021-11-03356765950010.730 ppb
2021-11-03356765950020.700 ppb
2021-11-03356765950030.800 ppb
2021-11-03356765950040.810 ppb
2022-02-23356993680010.930 ppb
2022-02-23356993680020.910 ppb
2022-02-23356993680030.940 ppb
2022-02-23356993680040.910 ppb
2022-05-24357210660070.720 ppb
2022-05-24357210660080.600 ppb
2022-05-24357210660090.740 ppb
2022-05-24357210660100.580 ppb
2022-08-11357406780011.000 ppb
2022-08-11357406780021.20 ppb
2022-08-11357406780031.20 ppb
2022-08-11357406780041.20 ppb
2022-11-07357588790010.680 ppb
2022-11-07357588790020.780 ppb
2022-11-07357588790030.830 ppb
2022-11-07357588790040.790 ppb
2023-02-22357820440010.850 ppb
2023-02-22357820440020.930 ppb
2023-02-22357820440031.10 ppb
2023-02-22357820440040.740 ppb
2023-05-10357992520010.930 ppb
2023-05-10357992520020.830 ppb
2023-05-10357992520030.740 ppb
2023-05-10357992520040.890 ppb
2023-08-17358219800010.910 ppb
2023-08-17358219800020.950 ppb
2023-08-17358219800030.940 ppb
2023-08-17358219800040.940 ppb
2023-11-03358392880010.580 ppb
2023-11-03358392880020.580 ppb
2023-11-03358392880030.460 ppb
2023-11-03358392880040.570 ppb