Dieldrin
Harris County Municipal Utility District 468
NOTE: Harris County Municipal Utility District 468 purchases water from North Harris County Regional Water Authority which is required to test for dieldrin. Sample information shown below was taken by North Harris County Regional Water Authority.
Dieldrin is a highly toxic insecticide that was banned in the 1970s due to its persistence in the environment and toxicity 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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Harris County Municipal Utility District 468 purchases water from North Harris County Regional Water Authority which is required to test for dieldrin. Sample information shown below was taken by North Harris County Regional Water Authority.
| Date | Lab ID | Result |
|---|