Dalapon
Harris County Municipal Utility District 5
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
50
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 9 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-06 | AE12481 | ND |
| 2018-02-06 | AE12476 | ND |
| 2018-05-02 | AE24794 | ND |
| 2018-05-02 | AE24772 | ND |
| 2018-09-12 | AE39788 | ND |
| 2018-09-12 | AE39789 | ND |
| 2018-11-26 | AE46811 | ND |
| 2018-11-26 | AE46812 | ND |
| 2019-02-06 | AE53171 | ND |
| 2019-02-06 | AE53173 | ND |
| 2019-04-29 | AE63920 | ND |
| 2019-04-29 | AE63933 | ND |
| 2019-08-15 | AE78868 | ND |
| 2019-08-15 | AE78899 | ND |
| 2019-12-04 | AE91218 | ND |
| 2019-12-04 | AE91219 | ND |
| 2020-02-21 | AE99488 | ND |
| 2020-02-21 | AE99503 | ND |
| 2020-02-21 | AE99586 | ND |
| 2020-05-20 | AF12101 | ND |
| 2020-05-20 | AF12104 | ND |
| 2020-08-19 | AF24546 | ND |
| 2020-08-19 | AF24564 | ND |
| 2020-10-22 | AF31655 | ND |
| 2020-10-22 | AF31656 | ND |
| 2021-02-02 | AF42136 | ND |
| 2021-02-02 | AF42138 | ND |
| 2021-06-18 | AF58799 | ND |
| 2021-06-18 | AF58804 | ND |
| 2021-08-12 | AF66047 | ND |
| 2021-08-12 | AF66049 | ND |
| 2021-10-28 | AF75038 | ND |
| 2021-10-28 | AF75039 | ND |
| 2022-02-15 | AF84866 | ND |
| 2022-02-15 | AF84868 | ND |
| 2022-04-25 | AF94216 | ND |
| 2022-04-25 | AF94217 | ND |
| 2022-09-16 | AG13478 | ND |
| 2022-09-16 | AG13475 | ND |
| 2022-11-30 | AG20270 | ND |
| 2022-11-30 | AG20271 | ND |
| 2023-02-13 | AG28581 | ND |
| 2023-02-13 | AG28583 | ND |
| 2023-02-13 | AG28643 | ND |
| 2023-05-09 | AG39709 | ND |
| 2023-05-09 | AG39710 | ND |
| 2023-07-24 | AG49767 | ND |
| 2023-07-24 | AG49768 | ND |
| 2023-11-15 | AG63724 | ND |
| 2023-11-15 | AG63725 | ND |