DDT
Crest Hill
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 | 10 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 9 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-05 | SB40142-01_01 | ND |
| 2014-02-05 | SB40140-01_01 | ND |
| 2014-02-05 | SB40141-01_01 | ND |
| 2014-02-05 | SB40143-01_01 | ND |
| 2014-02-05 | SB40144-01_01 | ND |
| 2014-06-05 | SF40228-01_01 | ND |
| 2014-06-05 | SF40231-01_01 | ND |
| 2014-06-05 | SF40229-01_01 | ND |
| 2014-06-05 | SF40227-01_01 | ND |
| 2014-06-05 | SF40225-01_01 | ND |
| 2017-01-31 | 1702020-001B | ND |
| 2017-01-31 | 1702020-010B | ND |
| 2017-01-31 | 1702020-007B | ND |
| 2017-01-31 | 1702020-004B | ND |
| 2017-04-19 | 1704D33-004B | ND |
| 2017-04-19 | 1704D33-007B | ND |
| 2017-04-19 | 1704D33-001B | ND |
| 2017-04-19 | 1704D33-010B | ND |
| 2017-12-28 | 1801130-001B | ND |
| 2018-06-26 | 18F1104-01_02 | ND |
| 2019-12-26 | 9124547-01 | ND |