Trichloroacetic acid
Slidell Water Supply
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 32 | 0 | ND |
| 2019 | ND | 32 | 0 | ND |
| 2020 | 0.188 ppb | 16 | 5 | ND - 0.680 ppb |
| 2021 | 0.0244 ppb | 16 | 1 | ND - 0.390 ppb |
| 2022 | 0.0681 ppb | 16 | 2 | ND - 0.610 ppb |
| 2023 | 0.243 ppb | 20 | 5 | ND - 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 |
|---|---|---|
| 2018-02-01 | 35371859001 | ND |
| 2018-02-01 | 35371859002 | ND |
| 2018-02-01 | 35371859003 | ND |
| 2018-02-01 | 35371859004 | ND |
| 2018-02-01 | 35371859001 | ND |
| 2018-02-01 | 35371859002 | ND |
| 2018-02-01 | 35371859003 | ND |
| 2018-02-01 | 35371859004 | ND |
| 2018-05-04 | 35390280001 | ND |
| 2018-05-04 | 35390280002 | ND |
| 2018-05-04 | 35390280003 | ND |
| 2018-05-04 | 35390280004 | ND |
| 2018-05-04 | 35390280001 | ND |
| 2018-05-04 | 35390280002 | ND |
| 2018-05-04 | 35390280003 | ND |
| 2018-05-04 | 35390280004 | ND |
| 2018-08-03 | 35408757001 | ND |
| 2018-08-03 | 35408757002 | ND |
| 2018-08-03 | 35408757003 | ND |
| 2018-08-03 | 35408757004 | ND |
| 2018-08-03 | 35408757001 | ND |
| 2018-08-03 | 35408757002 | ND |
| 2018-08-03 | 35408757003 | ND |
| 2018-08-03 | 35408757004 | ND |
| 2018-11-01 | 35428054001 | ND |
| 2018-11-01 | 35428054002 | ND |
| 2018-11-01 | 35428054003 | ND |
| 2018-11-01 | 35428054004 | ND |
| 2018-11-01 | 35428054001 | ND |
| 2018-11-01 | 35428054002 | ND |
| 2018-11-01 | 35428054003 | ND |
| 2018-11-01 | 35428054004 | ND |
| 2019-02-14 | 35448846001 | ND |
| 2019-02-14 | 35448846002 | ND |
| 2019-02-14 | 35448846003 | ND |
| 2019-02-14 | 35448846004 | ND |
| 2019-02-14 | 35448846001 | ND |
| 2019-02-14 | 35448846002 | ND |
| 2019-02-14 | 35448846003 | ND |
| 2019-02-14 | 35448846004 | ND |
| 2019-05-03 | 35466076001 | ND |
| 2019-05-03 | 35466076002 | ND |
| 2019-05-03 | 35466076003 | ND |
| 2019-05-03 | 35466076004 | ND |
| 2019-05-03 | 35466076001 | ND |
| 2019-05-03 | 35466076002 | ND |
| 2019-05-03 | 35466076003 | ND |
| 2019-05-03 | 35466076004 | ND |
| 2019-08-16 | 35491112001 | ND |
| 2019-08-16 | 35491112002 | ND |
| 2019-08-16 | 35491112003 | ND |
| 2019-08-16 | 35491112004 | ND |
| 2019-08-16 | 35491112001 | ND |
| 2019-08-16 | 35491112002 | ND |
| 2019-08-16 | 35491112003 | ND |
| 2019-08-16 | 35491112004 | ND |
| 2019-11-08 | 35511066001 | ND |
| 2019-11-08 | 35511066002 | ND |
| 2019-11-08 | 35511066003 | ND |
| 2019-11-08 | 35511066004 | ND |
| 2019-11-08 | 35511066001 | ND |
| 2019-11-08 | 35511066002 | ND |
| 2019-11-08 | 35511066003 | ND |
| 2019-11-08 | 35511066004 | ND |
| 2020-02-07 | 35529499001 | 0.630 ppb |
| 2020-02-07 | 35529499002 | 0.610 ppb |
| 2020-02-07 | 35529499003 | 0.530 ppb |
| 2020-02-07 | 35529499004 | 0.550 ppb |
| 2020-05-01 | 35547152001 | ND |
| 2020-05-01 | 35547152002 | ND |
| 2020-05-01 | 35547152003 | ND |
| 2020-05-01 | 35547152004 | ND |
| 2020-08-13 | 35570693001 | ND |
| 2020-08-13 | 35570693002 | ND |
| 2020-08-13 | 35570693003 | ND |
| 2020-08-13 | 35570693004 | ND |
| 2020-11-06 | 35590523001 | ND |
| 2020-11-06 | 35590523002 | 0.680 ppb |
| 2020-11-06 | 35590523003 | ND |
| 2020-11-06 | 35590523004 | ND |
| 2021-02-05 | 35610008001 | ND |
| 2021-02-05 | 35610008002 | ND |
| 2021-02-05 | 35610008003 | ND |
| 2021-02-05 | 35610008004 | ND |
| 2021-05-14 | 35633874001 | ND |
| 2021-05-14 | 35633874002 | ND |
| 2021-05-14 | 35633874003 | ND |
| 2021-05-14 | 35633874004 | ND |
| 2021-08-06 | 35653794001 | ND |
| 2021-08-06 | 35653794002 | ND |
| 2021-08-06 | 35653794003 | 0.390 ppb |
| 2021-08-06 | 35653794004 | ND |
| 2021-11-05 | 35676281001 | ND |
| 2021-11-05 | 35676281002 | ND |
| 2021-11-05 | 35676281003 | ND |
| 2021-11-05 | 35676281004 | ND |
| 2022-02-04 | 35695574001 | ND |
| 2022-02-04 | 35695574002 | ND |
| 2022-02-04 | 35695574003 | ND |
| 2022-02-04 | 35695574004 | ND |
| 2022-05-06 | 35715930001 | ND |
| 2022-05-06 | 35715930002 | ND |
| 2022-05-06 | 35715930003 | ND |
| 2022-05-06 | 35715930004 | 0.480 ppb |
| 2022-08-05 | 35737345001 | ND |
| 2022-08-05 | 35737345002 | ND |
| 2022-08-05 | 35737345003 | ND |
| 2022-08-05 | 35737345004 | ND |
| 2022-11-07 | 35758726001 | 0.610 ppb |
| 2022-11-07 | 35758726002 | ND |
| 2022-11-07 | 35758726003 | ND |
| 2022-11-07 | 35758726004 | ND |
| 2023-02-03 | 35776986001 | ND |
| 2023-02-03 | 35776986002 | ND |
| 2023-02-03 | 35776986003 | ND |
| 2023-02-03 | 35776986004 | ND |
| 2023-05-05 | 35797787001 | ND |
| 2023-05-05 | 35797787002 | ND |
| 2023-05-05 | 35797787003 | ND |
| 2023-05-05 | 35797787004 | ND |
| 2023-08-04 | 35818363001 | ND |
| 2023-08-04 | 35818363002 | ND |
| 2023-08-04 | 35818363003 | ND |
| 2023-08-04 | 35818363004 | ND |
| 2023-08-04 | 35818363005 | 0.890 ppb |
| 2023-08-04 | 35818363006 | ND |
| 2023-11-02 | 35839343001 | ND |
| 2023-11-02 | 35839343002 | 0.470 ppb |
| 2023-11-02 | 35839343003 | ND |
| 2023-11-02 | 35839343004 | 0.700 ppb |
| 2023-11-02 | 35839343005 | 1.40 ppb |
| 2023-11-02 | 35839343006 | 1.40 ppb |