Dieldrin
Johnstown Water Works
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 |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-11-12 | JH1408015-SOC | ND |
| 2014-11-12 | JH1408016-SOC | ND |
| 2016-05-10 | JH1603553-SOC | ND |
| 2016-05-10 | JH1603554-SOC | ND |
| 2017-10-02 | JH1707997-SOC | ND |
| 2017-10-02 | JH1707996-SOC | ND |
| 2019-05-02 | JH1902571-SOC | ND |
| 2019-05-02 | JH1902572-SOC | ND |
| 2019-07-15 | JH1904723-SOC | ND |
| 2019-10-09 | JH1907426-SOC | ND |