Dieldrin
City of Napa
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.
10
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-09 | 1233-005-1145 | ND |
| 2014-07-09 | 1233-006-1245 | ND |
| 2014-07-09 | 1233-007-0925 | ND |
| 2015-07-21 | 1233-005-1120 | ND |
| 2015-07-21 | 1233-006-1415 | ND |
| 2015-07-21 | 1233-007-0940 | ND |
| 2018-07-11 | 1233-006-1015 | ND |
| 2018-07-11 | 1233-007-1200 | ND |
| 2019-07-10 | 1233-006-1200 | ND |
| 2019-07-10 | 1233-007-0830 | ND |