Dieldrin
CTWC - Unionville System
NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for dieldrin. Sample information shown below was taken by Metropolitan District Commission.
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.
19
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 | 9 | 0 | ND |
| 2019 | ND | 20 | 0 | ND |
| 2020 | ND | 10 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 12 | 0 | ND |
| 2023 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for dieldrin. Sample information shown below was taken by Metropolitan District Commission.
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-27 | CA79476 | ND |
| 2018-06-27 | CA79477 | ND |
| 2018-06-27 | CA79475 | ND |
| 2018-09-25 | CB38504 | ND |
| 2018-09-25 | CB38505R | ND |
| 2018-09-25 | CB38869 | ND |
| 2018-09-25 | CB38505 | ND |
| 2020-12-08 | SOC 200600638 | ND |
| 2020-12-08 | SOC 200600609 | ND |
| 2020-12-09 | SOC 200600592 | ND |
| 2021-11-23 | S300107511 300107513 | ND |
| 2021-11-23 | S300107593 300107596 | ND |
| 2021-11-29 | S300109627 300109629 | ND |
| 2022-12-15 | S300287039 300287044 | ND |
| 2022-12-15 | S300287062 300287065 | ND |
| 2022-12-15 | S300287090 300287093 | ND |
| 2023-12-05 | S300456329 300456332 | ND |
| 2023-12-06 | S300456308 300456311 | ND |
| 2023-12-06 | S300456298 300456301 | ND |