Dieldrin
City of Hallsville
NOTE: City of Hallsville purchases water from City of Longview which is required to test for dieldrin. Sample information shown below was taken by City of Longview.
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.
21
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
NOTE: City of Hallsville purchases water from City of Longview which is required to test for dieldrin. Sample information shown below was taken by City of Longview.
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-14 | Q1416185008 | ND |
| 2014-05-14 | Q1416185001 | ND |
| 2014-05-14 | Q1416185011 | ND |
| 2015-02-12 | Q1505852003 | ND |
| 2015-02-12 | Q1505852002 | ND |
| 2015-02-12 | Q1505852001 | ND |
| 2016-02-11 | Q1606282003 | ND |
| 2016-02-11 | Q1606282002 | ND |
| 2016-02-11 | Q1606282001 | ND |
| 2016-09-02 | Q1635387015 | ND |
| 2016-11-10 | Q1648960009 | ND |
| 2017-02-16 | Q1706910003 | ND |
| 2017-02-16 | Q1706910002 | ND |
| 2017-02-16 | Q1706910001 | ND |
| 2017-05-09 | Q1718914001 | ND |
| 2018-05-17 | Q1820323012 | ND |
| 2018-05-17 | Q1820323011 | ND |
| 2018-08-21 | Q1833337004 | ND |
| 2019-02-04 | Q1905047002 | ND |
| 2019-02-04 | Q1905047003 | ND |
| 2019-02-04 | Q1905047001 | ND |