Dieldrin
Connecticut Water Company - Northern Reg-reservoir Heights
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.
0
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 | 0.0184 ppb | 12 | 7 | ND - 0.0420 ppb |
| 2019 | 0.0197 ppb | 15 | 8 | ND - 0.0480 ppb |
| 2020 | 0.0344 ppb | 8 | 8 | 0.0280 ppb - 0.0390 ppb |
| 2021 | 0.0419 ppb | 8 | 8 | 0.0380 ppb - 0.0440 ppb |
| 2022 | 0.0147 ppb | 22 | 9 | ND - 0.0540 ppb |
| 2023 | 0.0348 ppb | 8 | 8 | 0.0310 ppb - 0.0390 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|