2,4,5-T
Harris County Municipal Utility District 412
NOTE: Harris County Municipal Utility District 412 purchases water from City of Houston which is required to test for 2,4,5-t. Sample information shown below was taken by City of Houston.
2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) is a herbicide banned in the U.S. since 1985. It was formerly used on residential and commercial lawns, and occasionally on food crops. 2,4,5-T contained the impurity dioxin, which is highly toxic to people and wildlife.
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 | 1 | 0 | ND |
| 2019 | ND | 10 | 0 | ND |
| 2020 | ND | 34 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 32 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Harris County Municipal Utility District 412 purchases water from City of Houston which is required to test for 2,4,5-t. Sample information shown below was taken by City of Houston.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-18 | AE09316 | ND |
| 2019-01-15 | AE50229 | ND |
| 2019-01-15 | AE50230 | ND |
| 2019-01-16 | AE50236 | ND |
| 2019-03-06 | AE57434 | ND |
| 2019-03-06 | AE57435 | ND |
| 2019-04-10 | AE62131 | ND |
| 2019-07-25 | AE76036 | ND |
| 2019-07-25 | AE76035 | ND |
| 2019-09-23 | AE84274 | ND |
| 2019-09-23 | AE84275 | ND |
| 2020-03-16 | AF03030 | ND |
| 2020-03-16 | AF03031 | ND |
| 2020-03-16 | AF03034 | ND |
| 2020-05-26 | AF12660 | ND |
| 2020-06-11 | AF15134 | ND |
| 2020-06-11 | AF15135 | ND |
| 2020-06-29 | AF17334 | ND |
| 2020-06-29 | AF17329 | ND |
| 2020-06-29 | AF17332 | ND |
| 2020-06-29 | AF17333 | ND |
| 2020-08-27 | AF25709 | ND |
| 2020-10-19 | AF31179 | ND |
| 2020-10-19 | AF31177 | ND |
| 2020-10-19 | AF31176 | ND |
| 2020-10-19 | AF31175 | ND |
| 2020-10-19 | AF31174 | ND |
| 2020-10-26 | AF31954 | ND |
| 2020-10-26 | AF31953 | ND |
| 2020-10-26 | AF31952 | ND |
| 2020-10-26 | AF31951 | ND |
| 2020-10-26 | AF31950 | ND |
| 2020-10-26 | AF31949 | ND |
| 2020-11-04 | AF33311 | ND |
| 2020-11-04 | AF33310 | ND |
| 2020-11-04 | AF33309 | ND |
| 2020-11-04 | AF33308 | ND |
| 2020-11-04 | AF33307 | ND |
| 2020-11-05 | AF33522 | ND |
| 2020-11-05 | AF33521 | ND |
| 2020-11-05 | AF33520 | ND |
| 2020-11-05 | AF33519 | ND |
| 2020-11-05 | AF33523 | ND |
| 2020-11-30 | AF35877 | ND |
| 2020-12-04 | AF36735 | ND |
| 2021-02-10 | AF43551 | ND |
| 2022-03-23 | AF90292 | ND |
| 2022-03-23 | AF90296 | ND |
| 2022-03-24 | AF90560 | ND |
| 2022-03-24 | AF90559 | ND |
| 2022-03-24 | AF90558 | ND |
| 2022-04-06 | AF92285 | ND |
| 2022-08-16 | AG09523 | ND |
| 2022-08-16 | AG09524 | ND |
| 2022-08-17 | AG09784 | ND |
| 2023-01-31 | AG26896 | ND |
| 2023-01-31 | AG26906 | ND |
| 2023-04-06 | AG35918 | ND |
| 2023-04-06 | AG35917 | ND |
| 2023-04-06 | AG35907 | ND |
| 2023-04-06 | AG35905 | ND |
| 2023-04-06 | AG35904 | ND |
| 2023-04-06 | AG35906 | ND |
| 2023-05-16 | AG40899 | ND |
| 2023-05-17 | AG40898 | ND |
| 2023-06-27 | AG46277 | ND |
| 2023-06-27 | AG46280 | ND |
| 2023-06-27 | AG46278 | ND |
| 2023-06-27 | AG46276 | ND |
| 2023-06-27 | AG46275 | ND |
| 2023-06-27 | AG46274 | ND |
| 2023-10-10 | AG59190 | ND |
| 2023-10-10 | AG59188 | ND |
| 2023-10-10 | AG59187 | ND |
| 2023-10-10 | AG59186 | ND |
| 2023-10-10 | AG59185 | ND |
| 2023-10-11 | AG59493 | ND |
| 2023-10-11 | AG59496 | ND |
| 2023-10-11 | AG59495 | ND |
| 2023-10-11 | AG59494 | ND |
| 2023-10-11 | AG59492 | ND |
| 2023-10-11 | AG59491 | ND |
| 2023-11-30 | AG65061 | ND |
| 2023-12-18 | AG66889 | ND |
| 2023-12-18 | AG66890 | ND |
| 2023-12-18 | AG66892 | ND |
| 2023-12-18 | AG66894 | ND |