Site Report: ARRC Cantwell Section House
| Site Name: | ARRC Cantwell Section House |
|---|---|
| Address: | Intersection Denali Hwy., and railroad mainline, Cantwell, AK 99729 |
| File Number: | 190.38.004 |
| Hazard ID: | 4106 |
| Status: | Cleanup Complete |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.391147 |
| Longitude: | -148.952697 |
| 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
Contaminated soil was discovered while the Alaska Railroad was in the process of constructing a pile-supported structure at this site. An assessment of groundwater conditions was conducted at the site which included determining GW flow direction, a water well search, and an evaluation of potential contaminant concentrations.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/30/2004 | Site Characterization Workplan Approved | A workplan was submitted to install 3 GW monitoring wells and conduct an assessment of GW conditions at the site which included determining GW flow direction, a water well search, and an evaluation of potential contaminant concentrations. | Linda Nuechterlein |
| 1/4/2005 | Update or Other Action | Received a Oct. 2004 Report which documents site characterization activities conducted within the building footprint on August 17, 2004. | Linda Nuechterlein |
| 1/20/2005 | Site Added to Database | DRO | Sarah Cunningham |
| 1/20/2005 | GIS Position Updated | TopoZone Pro. NAD27. | Sarah Cunningham |
| 2/17/2005 | Update or Other Action | Report received on this date that documents installation of 3 MWs and GW assessment. | Linda Nuechterlein |
| 1/26/2006 | Site Characterization Report Approved | Recieved Groundwater Monitoring and Well Decommissioning Report. All groundwater samples ND, drinking water sampled from Cantwell Lodge also ND. Monitoring wells decommissioned in accordance with ADEC guidance | Bill O'Connell |
| 5/22/2006 | Institutional Control Record Established | This decision will be noted as “Conditional Closure” on the ADEC database and is subject to the following conditions: 1. A Notice of Residual Contamination will be recorded on the ADEC database to document that there are areas where hazardous substance contamination may remain above the most stringent ADEC cleanup levels; 2. Any proposal to transport soil off site requires ADEC approval in accordance with 18 AAC 75.325(i). | Bill O'Connell |
| 5/22/2006 | Conditional Closure Approved | Based on the information provided to date, ADEC has determined that the Cantwell Section House shall be conditionally closed because the hazardous substance contamination has been adequately addressed and does not pose an unacceptable risk to human health or the environment. | Bill O'Connell |
| 9/13/2006 | Spill Transferred from Prevention Preparedness and Response Program | Site transferred by PERP staff Toivo Luick. PERP Spill No. 04309922502; PERP File No. 150.02.027; Spill Date 8/12/04; Diesel release of unknown quantity. Historic contamination discovered. Site has since been evaluated and is in conditional closure status. | Mitzi Read |
| 6/13/2012 | Update or Other Action | Staff changed from Grant Lidren to IC Unit. | Kristin Thompson |
| 7/9/2012 | Institutional Control Compliance Review | IC review conducted. | Evonne Reese |
| 7/9/2012 | Institutional Control Record Removed | This site meets the 2009 closure policy therefore ICs can be removed. The default requirement of no offsite transport of soil or groundwater from this site is still applicable. | Evonne Reese |
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.