Know Your Environment. Protect Your Health.

Trichloroacetic acid

Southwest Ouachita Waterworks Inc.

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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

123

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201813.5 ppb32320.520 ppb - 89.8 ppb
20191.88 ppb32320.730 ppb - 7.50 ppb
20203.41 ppb16160.590 ppb - 17.5 ppb
20211.49 ppb1613ND - 5.40 ppb
20221.81 ppb1615ND - 4.80 ppb
20231.63 ppb1615ND - 3.10 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
2018-02-123537392500128.1 ppb
2018-02-123537392500217.6 ppb
2018-02-123537392500313.9 ppb
2018-02-123537392500431.6 ppb
2018-02-123537392500128.1 ppb
2018-02-123537392500217.6 ppb
2018-02-123537392500313.9 ppb
2018-02-123537392500431.6 ppb
2018-05-17353932250010.750 ppb
2018-05-17353932250020.520 ppb
2018-05-17353932250030.780 ppb
2018-05-17353932250040.610 ppb
2018-05-17353932250010.750 ppb
2018-05-17353932250020.520 ppb
2018-05-17353932250030.780 ppb
2018-05-17353932250040.610 ppb
2018-08-14354116170017.70 ppb
2018-08-14354116170020.920 ppb
2018-08-14354116170030.540 ppb
2018-08-143541161700489.8 ppb
2018-08-14354116170017.70 ppb
2018-08-14354116170020.920 ppb
2018-08-14354116170030.540 ppb
2018-08-143541161700489.8 ppb
2018-11-02354282260011.40 ppb
2018-11-023542822600218.8 ppb
2018-11-02354282260031.30 ppb
2018-11-02354282260042.10 ppb
2018-11-02354282260011.40 ppb
2018-11-023542822600218.8 ppb
2018-11-02354282260031.30 ppb
2018-11-02354282260042.10 ppb
2019-02-01354457500011.30 ppb
2019-02-01354457500020.730 ppb
2019-02-01354457500031.10 ppb
2019-02-01354457500040.980 ppb
2019-02-01354457500011.30 ppb
2019-02-01354457500020.730 ppb
2019-02-01354457500031.10 ppb
2019-02-01354457500040.980 ppb
2019-05-14354693220011.80 ppb
2019-05-14354693220022.00 ppb
2019-05-14354693220030.780 ppb
2019-05-14354693220043.50 ppb
2019-05-14354693220011.80 ppb
2019-05-14354693220022.00 ppb
2019-05-14354693220030.780 ppb
2019-05-14354693220043.50 ppb
2019-08-20354919340017.50 ppb
2019-08-20354919340020.800 ppb
2019-08-20354919340030.930 ppb
2019-08-20354919340041.50 ppb
2019-08-20354919340017.50 ppb
2019-08-20354919340020.800 ppb
2019-08-20354919340030.930 ppb
2019-08-20354919340041.50 ppb
2019-11-20355145880012.00 ppb
2019-11-20355145880021.40 ppb
2019-11-20355145880030.800 ppb
2019-11-20355145880043.00 ppb
2019-11-20355145880012.00 ppb
2019-11-20355145880021.40 ppb
2019-11-20355145880030.800 ppb
2019-11-20355145880043.00 ppb
2020-02-14355311970013.10 ppb
2020-02-14355311970022.10 ppb
2020-02-14355311970030.830 ppb
2020-02-14355311970042.90 ppb
2020-05-15355505760012.60 ppb
2020-05-15355505760022.30 ppb
2020-05-15355505760031.10 ppb
2020-05-15355505760044.70 ppb
2020-08-06355690580014.30 ppb
2020-08-06355690580022.60 ppb
2020-08-06355690580032.80 ppb
2020-08-063556905800417.5 ppb
2020-11-23355945430012.00 ppb
2020-11-23355945430020.810 ppb
2020-11-23355945430030.590 ppb
2020-11-23355945430044.30 ppb
2021-02-26356154090011.20 ppb
2021-02-26356154090020.790 ppb
2021-02-26356154090030.810 ppb
2021-02-2635615409004ND
2021-05-27356370430011.70 ppb
2021-05-27356370430020.940 ppb
2021-05-27356370430030.810 ppb
2021-05-27356370430042.90 ppb
2021-08-23356594270011.000 ppb
2021-08-2335659427002ND
2021-08-2335659427003ND
2021-08-23356594270045.40 ppb
2021-11-29356805320012.20 ppb
2021-11-29356805320020.980 ppb
2021-11-29356805320030.870 ppb
2021-11-29356805320044.20 ppb
2022-02-24356995740011.000 ppb
2022-02-24356995740020.460 ppb
2022-02-24356995740030.660 ppb
2022-02-24356995740044.80 ppb
2022-05-25357207130013.20 ppb
2022-05-25357207130022.90 ppb
2022-05-25357207130031.10 ppb
2022-05-25357207130041.50 ppb
2022-08-24357423770012.30 ppb
2022-08-24357423770020.520 ppb
2022-08-2435742377003ND
2022-08-24357423770043.10 ppb
2022-11-21357615940012.90 ppb
2022-11-21357615940021.20 ppb
2022-11-21357615940030.590 ppb
2022-11-21357615940042.70 ppb
2023-02-22357815280013.00 ppb
2023-02-22357815280021.10 ppb
2023-02-22357815280030.830 ppb
2023-02-22357815280042.20 ppb
2023-05-24358021570012.50 ppb
2023-05-24358021570021.50 ppb
2023-05-24358021570043.10 ppb
2023-05-26358026250010.880 ppb
2023-08-22358228980011.80 ppb
2023-08-22358228980020.700 ppb
2023-08-22358228980030.650 ppb
2023-08-22358228980040.910 ppb
2023-11-20358430640012.60 ppb
2023-11-20358430640021.50 ppb
2023-11-2035843064003ND
2023-11-20358430640042.80 ppb