Site Report: King Salmon AS GWZ4 DA035 Drum Storage
| Site Name: | King Salmon AS GWZ4 DA035 Drum Storage |
|---|---|
| Address: | DA035 in Ground Water Zone 2, King Salmon, AK 99613 |
| File Number: | 2569.38.018.04 |
| Hazard ID: | 4514 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 58.689039 |
| Longitude: | -156.684119 |
| Horizontal Datum: | NAD83 |
|  |
 |  |
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
The site is a former drum storage area and stained soil is located near the route of the former pipeline. Groundwater flow is to the south toward the Naknek river. Metal debris was found along the former pipeline route on the northern side of the pipeline. Several crushed, partually buried and rusted drums were found in the clearing at the former drum storage area. Monitoring well MW 55 was last sampled in 1993 and benzene was detected at 0.014 mg/L. Three soil samples were collected near the crushed drums in the clearing. None of the soil samples exceeded ADEC cleanup levels. MW 55 will need to be resampled to determine if any benzene is still present in the groundwater.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/6/2007 | Site Added to Database | Site added to the database. | Mitzi Read |
| 12/7/2007 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Jonathan Schick |
| 12/11/2007 | Update or Other Action | ADEC staff issued a letter to the 611th CES explaining the need for additional site inspection sampling to achieve closure at sites DA033, DA035, SA06 and SA043. | Jonathan Schick |
| 4/15/2008 | Site Visit | ADEC staff conducted a site visit to a large number of pertinent sites at King Salmon Air Station over a 3 day visit. Sites were inspected for any visible evidence of contamination and potential sampling locations. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A RAB meeting was held during the site visit. | Jonathan Schick |
| 4/15/2008 | Update or Other Action | ADEC staff participated in a Restoration Advisory Board meeting at the King Salmon Air Station. Community members are encouraged to attend and view a presentation of the most recent sampling program where data is available. Main topics discussed were the TCE plume that is in Groundwater Zone 1 where a treatibility study is being conducted to see the possible influence of adding an enhanced in-situ bioremediation product that is engineered to break down chlorinated solvents. The other main topic discussed was the results from the basewide monitoring event at all of the Groundwater Zones from 2007. | Jonathan Schick |
| 10/21/2008 | Site Visit | ADEC staff took part in a site visit to a number of pertinent sites at King Salmon Air Station over a 2 day visit. Sites, especially the pending Multi Site Inspection sites, were inspected for any visible evidence of contamination and potential sampling locations as the work plans are still being formulated. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, a discussion of the Multi-SIte inspection project, an update on the status of the Groundwater Zone 5 Records of Decision, and a brief discussion concerning the TCE treatibility Study in Groundwater Zone 1. The next RAB meeting has been tentatively scheduled for April 21, 2009. | Jonathan Schick |
| 3/23/2009 | Update or Other Action | USAF forwarded results from Groundwater monitoring well MW-55 from summer 2008 sampling activities. There was no benzene detected in the latest sample. MW-55 is located just downgradient of the DA035 site and had previously exceeded the cleanup level in a 1993 sample. Other than that groundwater sample from 1993, all soil samples in the area have returned results below cleanup level. | Jonathan Schick |
| 4/17/2009 | Cleanup Complete Determination Issued | On April 17, 2009 ADEC issued a letter to the USAF with a determination that cleanup is complete at site DA035. No soil contamination was identified at the site during the Site Inspection conducted in 2006. During the 2008 basewide monitoring event MW55 was sampled again to confirm that any benzene in the groundwater had attenuated to levels below the cleanup level. Therefore, the site was granted a cleanup complete determination. | Jonathan Schick |
| 10/20/2010 | Update or Other Action | ADEC staff conducted a site visit to pertinent sites at King Salmon Air Station over a 2 day visit. Sites were inspected for any visible evidence of contamination and to observe some of the work that is being conducted to remove POL impacted soils and PCB impacted soils at OT010. ADEC staff was accompanied to all of the sites by the Project manager from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, remedial action cleanup programs, and management of the IDW and soil in the biocells set up to add oxygen to the soil matrix to aid the degradation of the petroleum hydrocarbons. The next RAB meeting is scheduled for April 2011. | Jonathan Schick |
| 6/23/2011 | Update or Other Action | Contaminated Sites Staff recieved the Final Versoin of the Work Plan for Monitoring Well Decommissioning and Repair for all sites across King Salmon Air Station. The Comments from the Draft Version of the Plan were addressed in the response to comments and in the Final Version of the document. | Jonathan Schick |
| 6/23/2011 | Update or Other Action | Contaminated Sites Staff recieved the Final Versoin of the Work Plan for Monitoring Well Decommissioning and Repair for all sites across King Salmon Air Station. The Comments from the Draft Version of the Plan were addressed in the response to comments and in the Final Version of the document. | Jonathan Schick |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Benzene | < Table C | Groundwater | Monitoring Well MW-55 was resampled in 2008 and determined that the benzene levels had attenuated to below the applicable cleanup level. |
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.