Site Report: NPS Denali Nat'l Park Eielson Visitor Center
| Site Name: | NPS Denali Nat'l Park Eielson Visitor Center |
|---|---|
| Address: | Denali National Park, Denali Park, AK 99755 |
| File Number: | 220.26.003 |
| Hazard ID: | 24984 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.431666 |
| Longitude: | -150.309722 |
| Horizontal Datum: | NAD27 |
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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
Orignial entry: Little in file. 8/8/96 report of contaminated soil. No SA, no CN, no Post-C, no FacID.May be a LUST Site. Above Level A. Two tanks were removed on 7/30/96: a 2,000 gallon heating oil tank next to the visitor center and a 1,000 gallon diesel fuel generator tank next to a generator shack approximately 250 feet northeast of the visitor center. Diesel-contaminated soil was documented in confirmation samples at both locations. Two other heating oil spills have been reported near the visitor center. A surface water intake was located uphill from the facility. Depth to groundwater is unknown but is expected to be greater than 50 feet. Excavation at the heating oil tank locaton occurred in 1996, 2005, and 2006. Some residual contamination remains.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 7/30/1996 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Former Staff | |
| 7/30/1996 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 78463 Release date correcton on 9/17/07 based on information in file that was unavailable when the first database entry was made (former date listed as 7/24/92 and stated that the date needed to be corrected). | Former Staff |
| 7/30/1996 | Site Added to Database | Former Staff | |
| 8/21/2002 | Update or Other Action | RECKEY has automatically been generated. | Cynthia Pring-Ham |
| 6/18/2004 | Document, Report, or Work plan Review - other | Reviewed UST Closure report (for 1,000-gallon generator tank) received from NPS following a request for information. DRO values as high as 5852 ppm under the piping that lead from the tank. 497 ppm highest concentration beneath the former location of the tank. Excavation backfilled. | Torsten Ernst |
| 6/12/2006 | Update or Other Action | Approved transport of 100cy of soil to ASR last week (at 2,000 heating oil tank location). NPS remediating site beyond 1996 work as new foundation construction has made further contamination accessible. Site is being overexcavated at piperun. | Mike Jaynes |
| 10/4/2007 | Update or Other Action | Replacement copy of UST Clousre Tank 9830-029, 1996 received from NPS. This report was missing in the file. | Janice Wiegers |
| 2/20/2008 | Update or Other Action | Teleconference with Bill Heubner and Tammy Scholton to discuss map developed by Bill that overlays old and new visitor centers and former excavation areas. NPS will also develop a human health CSM that depicts potential pathways. No wells have been installed at this site to investigate potential groundwater impacts. Groundwater is believed to be around 50 ft bgs based on topography. | Janice Wiegers |
| 12/1/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 78464 name: 1,000-gallon diesel generator tank | Deborah Williams |
| 9/15/2009 | Conceptual Site Model Submitted | Received CSM for Visitor Center site | Melody Debenham |
| 4/9/2013 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 78463 2,000 gallon HOT. | Melody Debenham |
| 4/9/2013 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 78464 1,000 gallon diesel generator tank. | Melody Debenham |
| 4/18/2013 | Cleanup Complete Determination Issued | Melody Debenham | |
| 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 |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.