4,4'-dde
Spokane County Water District 3, Sys 2
12
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 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-07-23 | 00894 | ND |
| 2014-07-23 | 00894 | ND |
| 2015-08-18 | 64589 | ND |
| 2015-08-18 | 64589 | ND |
| 2015-09-14 | 65762 | ND |
| 2015-09-14 | 65762 | ND |
| 2017-12-27 | ND | |
| 2017-12-27 | ND | |
| 2019-03-19 | ND | |
| 2019-03-19 | ND | |
| 2019-06-05 | ND | |
| 2019-06-05 | ND |