Dieldrin
Westborough 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 8 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 9 | 0 | ND |
ppb = parts per billion
All test results
Date | Result |
---|---|
2016-05-13 | ND |
2016-05-13 | ND |
2016-05-13 | ND |
2016-05-25 | ND |
2016-12-21 | ND |
2016-12-21 | ND |
2016-12-21 | ND |
2016-12-21 | ND |
2017-08-31 | ND |
2017-11-14 | ND |
2019-06-21 | ND |
2019-06-21 | ND |
2019-06-21 | ND |
2019-07-24 | ND |
2019-12-18 | ND |
2019-12-18 | ND |
2019-12-30 | ND |
2019-12-30 | ND |
2019-12-30 | ND |