Superfund / Washington
Hidden Valley Landfill (Thun Field)
Pierce County, Pierce County, Washington
This site remains on the final NPL. The engineered cleanup (its "remedy") was physically completed on 09/28/2000, and the site stays listed while monitoring confirms the remedy works.
| EPA ID | WAD980511539 |
| Status | NPL Site |
| HRS score | 37.93 |
| Proposed | 06/10/1986 |
| Listed | 03/31/1989 |
| Construction complete | 09/28/2000 |
| Deleted | - |
| Coordinates | 47.09500, -122.28780 |
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