Site Report: NPS Denali Nat'l Park HQ Bldg. 21
| Site Name: | NPS Denali Nat'l Park HQ Bldg. 21 |
|---|---|
| Address: | Headquarters Building 21, Denali National Park, Denali Park, AK 99755 |
| File Number: | 220.38.005 |
| Hazard ID: | 3958 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.721025 |
| Longitude: | -148.966186 |
| Horizontal Datum: | WGS84 |
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We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
A 1,000 gallon buried heating oil tank was removed. Approximately 1230 ppm DRO remained at 13 feet below grade (limit of excavation) at the west side of the excavation.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/18/2001 | Update or Other Action | Underground Storage Tank Closure report Received. | Jeff Conn |
| 5/23/2002 | Update or Other Action | Site Investigation Work Plan received. | Jeff Conn |
| 6/7/2002 | Site Characterization Workplan Approved | Jeff Conn | |
| 12/5/2002 | Site Added to Database | Heating oil. | Jeff Conn |
| 6/18/2008 | Site Characterization Report Approved | Reviewed Site Investigation report dated August 2002. Three borings were installed during this investigation at the west and southwest end of the tank. The highest DRO level was 156 mg/kg, which is below ADEC cleanup levels. This sample was collected at 10 ft bgs. DRO levels were much lower at 15 ft bgs. One boring was installed to 32 ft bgs; groundwater was not encountered. | Janice Wiegers |
| 6/18/2008 | Site Closure Approved | Site closed based on last site investigation report. Soil contamination has been excavated to cleanup levels. Groundwater was not encountered in the excavation or borings, and is expected to be at least 65 ft bgs at this location. | Janice Wiegers |
| 9/30/2014 | Potentially Responsible Party/State Interest Letter | Potentially responsible party letter sent to the National Park Service. | Melody Debenham |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| For more information about this site, contact DEC at (907) 465-5390. |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
There are no documents for this site report.
No associated sites were found.