Site Report: ARRC Broad Pass Railroad Station
| Site Name: | ARRC Broad Pass Railroad Station |
|---|---|
| Address: | MP 193 Parks Highway; ARRC MP 304.5; ~15 mi. SW of Cantwell, Cantwell, AK 99729 |
| File Number: | 150.38.042 |
| Hazard ID: | 25593 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.235530 |
| Longitude: | -149.268670 |
| 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
In 2009, during a drainage ditch sampling effort for the ARRC - Broad Pass Railroad Station (HAZID 22938), a previously unknown 500-gallon diesel heating oil underground storage tank (UST) was discovered. The UST was found to be partially open and submerged with water. In 2010, the UST was purged of water and removed from the site. Three soil samples collected 6 inches below the former UST, at 3.75 ft. bgs, contained benzene up to 0.387 mg/kg. The excavation was then backfilled with stockpiled soils and clean fill to bring to grade.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 11/17/2010 | Document, Report, or Work plan Review - other | On this date ADEC received UST Removal Report Broad Pass Section House submitted by Clarus and dated October 29, 2010. | Grant Lidren |
| 12/15/2010 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 12/15/2010 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 78996 name: 500-Gallon Heating Oil UST | Mitzi Read |
| 1/20/2011 | Cleanup Complete Determination Issued | The Alaska Department of Environmental Conservation (ADEC), Contaminated Sites Program, has completed a review of the environmental records associated with the ARRC Broad Pass Railroad Station. Based on the information provided to date and the administrative record, the ADEC has determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment, and no further remedial action will be required as long as the site is in compliance with established institutional controls. | Grant Lidren |
| 1/20/2011 | Institutional Control Record Established | Institutional Controls established and entered into the database. | Grant Lidren |
| 1/26/2011 | Update or Other Action | On this date, ADEC recieved signed Cleanup Complete-ICs Agreement and Signature Page. | Grant Lidren |
| 6/13/2012 | Update or Other Action | Staff changed from Grant Lidren to IC Unit. | Kristin Thompson |
| 6/13/2012 | Institutional Control Compliance Review | IC review conducted and reminder system set-up for 2016 follow-up with responsible party. | Kristin Thompson |
| 1/11/2016 | Institutional Control Compliance Review | IC compliance review conducted and IC reminder letter issued to the responsible party on this date. Reminder system set to follow-up in 2021. | Kristin Thompson |
| 1/13/2016 | Institutional Control Update | Received verification from the property owner that land use has not changed. | Evonne Reese |
| 2/24/2023 | Institutional Control Compliance Review | IC compliance review conducted on this date and a reminder letter was issued. The next compliance review will be in 5yrs. | Jennifer McGrath |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Benzene | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| Signed CS Determination |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
| Hazard ID | Site Name | File Number |
|---|---|---|
| 22938 | ARRC Broad Pass Railroad Station | 150.26.036 |