Dieldrin
Manchester Water Department
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.
73
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 |
|---|---|---|
| 2018-01-09 | AA82350-DIELDRIN | 0.0300 ppb |
| 2018-01-09 | AA82347-DIELDRIN | 0.0300 ppb |
| 2018-04-10 | AA83456-DIELDRIN | 0.0300 ppb |
| 2018-06-13 | AA84269-SOC2 | 0.0290 ppb |
| 2018-06-13 | AA84270-SOC2 | ND |
| 2018-06-26 | AA84433-SOC2 | ND |
| 2018-06-27 | AA84458-SOC2 | ND |
| 2018-06-27 | AA84459-SOC2 | ND |
| 2018-06-29 | AA84479-SOC2 | 0.0420 ppb |
| 2018-06-29 | AA84480-SOC2 | ND |
| 2018-07-18 | AA84742-DIELDRIN | 0.0300 ppb |
| 2018-10-17 | AA85906-DIELDRIN | 0.0300 ppb |
| 2019-01-15 | AA86956-DIELDRIN | 0.0430 ppb |
| 2019-01-16 | AA86974-DIELDRIN | 0.0380 ppb |
| 2019-04-25 | AA88156-DIELDRIN | 0.0480 ppb |
| 2019-07-08 | AA89074-DIELDRIN | 0.0280 ppb |
| 2019-09-16 | AA89989-SOC2 | 0.0310 ppb |
| 2019-09-16 | AA90001-SOC2 | 0.0380 ppb |
| 2019-09-16 | AA90001-SOC2 | 0.0380 ppb |
| 2019-09-16 | AA89986-SOC2 | ND |
| 2019-09-16 | AA89985-SOC2 | ND |
| 2019-09-16 | AA90007-SOC2 | ND |
| 2019-09-16 | AA89986-SOC2 | ND |
| 2019-09-17 | AA90002-SOC2 | ND |
| 2019-09-17 | AA89998-SOC2 | ND |
| 2019-09-17 | AA89998-SOC2 | ND |
| 2019-10-16 | AA90371-DIELDRIN | 0.0310 ppb |
| 2020-01-21 | AA91526-DIELDRIN | 0.0330 ppb |
| 2020-01-21 | AA91522-DIELDRIN | 0.0360 ppb |
| 2020-04-14 | AA92521-DIELDRIN | 0.0280 ppb |
| 2020-04-14 | AA92524-DIELDRIN | 0.0280 ppb |
| 2020-07-07 | AA93639-DIELDRIN | 0.0380 ppb |
| 2020-07-14 | AA93751-DIELDRIN | 0.0390 ppb |
| 2020-10-13 | AA95167-DIELDRIN | 0.0360 ppb |
| 2020-10-14 | AA95186-DIELDRIN | 0.0370 ppb |
| 2021-01-12 | 210112-3-03 DIE | 0.0430 ppb |
| 2021-01-13 | 210113-3-05 DIE | 0.0420 ppb |
| 2021-04-12 | 210412-3-05 DIE | 0.0400 ppb |
| 2021-04-13 | 210413-3-03 DIE | 0.0430 ppb |
| 2021-07-14 | 210714-3-03 DIE | 0.0440 ppb |
| 2021-07-14 | 210714-3-05 DIE | 0.0380 ppb |
| 2021-10-12 | 211012-3-03 DIE | 0.0430 ppb |
| 2021-10-12 | 211012-3-05 DIE | 0.0420 ppb |
| 2022-01-04 | 220104-3-03 DIE | 0.0540 ppb |
| 2022-01-05 | 220105-3-05DIE | 0.0420 ppb |
| 2022-04-07 | 220407-3-03DIE | 0.0360 ppb |
| 2022-04-07 | 220407-3-05DIE | 0.0260 ppb |
| 2022-06-06 | 220606-1-06 SOC | ND |
| 2022-06-06 | 220606-3-01SOC | ND |
| 2022-06-06 | 220606-3-02 SOC | ND |
| 2022-06-06 | 220606-3-03 SOC | ND |
| 2022-06-07 | 220607-3-04SOC | ND |
| 2022-06-08 | 220608-3-05 SOC | 0.0300 ppb |
| 2022-06-08 | 220608-3-06 SOC | ND |
| 2022-07-06 | 220706-3-05DIE | 0.0360 ppb |
| 2022-07-06 | 220706-3-03DIE | 0.0390 ppb |
| 2022-09-01 | 220901-3-08SOC | ND |
| 2022-09-01 | 220901-3-09SOC | ND |
| 2022-09-01 | 220901-3-06SOC | ND |
| 2022-09-07 | 220907-1-10SOC | ND |
| 2022-09-07 | 220907-3-05 SOC | ND |
| 2022-09-07 | 220907-3-06SOC | ND |
| 2022-10-11 | 221011-3-03 DIE | 0.0310 ppb |
| 2022-10-12 | 221012-3-05 DIE | 0.0290 ppb |
| 2022-10-12 | 221012-3-04 SOC | ND |
| 2023-01-17 | 230117-3-03 DIE | 0.0330 ppb |
| 2023-01-17 | 230117-3-05 DIE | 0.0320 ppb |
| 2023-04-03 | 230403-3-05DIE | 0.0360 ppb |
| 2023-04-05 | 230405-3-03DIE | 0.0390 ppb |
| 2023-07-17 | 230717-3-03 DIE | 0.0370 ppb |
| 2023-07-17 | 230717-3-05 DIE | 0.0320 ppb |
| 2023-10-02 | 231002-3-03DIE | 0.0380 ppb |
| 2023-10-02 | 231002-3-05DIE | 0.0310 ppb |