Site Report: Clear SFS Site 15 WP014
| Site Name: | Clear SFS Site 15 WP014 |
|---|---|
| Address: | 3400 Ft. NW of Power Plant, Lake Sansing, Clear, AK 99704 |
| File Number: | 151.38.001 |
| Hazard ID: | 1116 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.298286 |
| Longitude: | -149.200193 |
| 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
Manmade lake that receives cooling water from the Detection Radar Area and the power plant. Sediment sampling in 1994 showed chromium up to 97.9 mg/Kg, lead up to 262 mg/Kg, and mercury upt ot 3.1 mg/Kg. Site was proposed for no further action by the Air Force and a decision document signed by the base commander to that effect in 1990. ADEC and EPA were not consulted.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 10/13/2005 | Site Added to Database | Site intake completed using site information provided by the project manager via email. | Sarah Cunningham |
| 10/13/2005 | GIS Position Updated | Site coordinates were obtained using Topozone Pro. The location data are considered a default value for Clear, Alaska. More accurate location information will be provided by the Air Force in the future. | Sarah Cunningham |
| 11/8/2005 | Update or Other Action | Staff reviewed site summaries for 23 IRP sites at Clear. The following comment was sent to the Air Force for this site: Site 15 (WP014) is a manmade percolation pond that receives cooling water from both the technical site and the power plant. It has been named Lake Sansing. The pond is lined with fly ash and top soil to slow infiltration to groundwater. Sediments have been sampled and analyzed and exceedances of the NOAA SqUIRTs for cooper, chromium, lead, and mercury have been found. The lake has been stocked with fish and recreational fishing does occur. The Air Force is proposing to conduct an RI, followed by a FS, PP, and ROD. DEC concurs. | Debra Caillouet |
| 3/8/2007 | Update or Other Action | Staff submitted comments to the Air Force on the draft site characterization work plan | Debra Caillouet |
| 4/30/2007 | Site Characterization Workplan Approved | The Final Phase I Remedial Investigation Site 15, Clear Air Force Station, Alaska Work Plan April 2007 was approved. The work plan has been developed to determine if there are concentrations of contaminants present in the surface water or sediments of Lake Sansing that could pose a threat to human health or the environment. The drainage ditches leading into Lake Sansing will also be sampled to assist in determining a source if contamination is found in the lake. One monitoring well will be installed upgradient of the lake to determine if groundwater has been affected. | Debra Caillouet |
| 10/11/2007 | Exposure Tracking Model Ranking | Debra Caillouet | |
| 8/19/2008 | Update or Other Action | The ADEC received an updated Community Involvement Plan for the Environmental Restoration Program at Clear Air Force Station. | Debra Caillouet |
| 9/5/2008 | Site Characterization Workplan Approved | The Phase II RI work plan and risk assessment work plan was approved. | Debra Caillouet |
| 2/27/2009 | Document, Report, or Work plan Review - other | The draft RI report was reviewed and comments sent to the Air Force. | Debra Caillouet |
| 4/14/2009 | Site Characterization Report Approved | The Final Phase II Remedial Investigation Report, Site 15, Lake Sansing and Associated Drainages, Clear Air Force Station was approved. The results of this investigation show that there is no significant risk to human health, but there are impacts to benthic organisms. This is limiting the food supply for stocked fish in the lake. While no action may be necessary to address the risks to human health or fish health, DEC suggests that the lake not be stocked in the future. | Debra Caillouet |
| 1/12/2010 | Update or Other Action | A draft Proposed Plan for Sites 15, 17, 19, 20, 21, & 23 recommending no further action under CERCLA was reviewed and minor editorial comment sent to the Air Force. | Debra Caillouet |
| 3/25/2010 | Proposed Plan | Final Proposed Plan for Sites 15, 17, 19, 20, 21, and 23, Clear AFS, Alaska, Clear Air Force Station, March 2010 | Debra Caillouet |
| 4/12/2010 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 72095 Lake Sansing. | Debra Caillouet |
| 5/21/2010 | Document, Report, or Work plan Review - other | The final 2009 well decommissioning report documents the proper closure of 55 wells throughout the base. It recommends an additional 20 wells be decommissioned. | Debra Caillouet |
| 12/16/2010 | CERCLA ROD Approved | Final Record of Decision Sites 15, 17, 19, 20, 21, and 23 dated August 2010 signed. | Debra Caillouet |
| 12/16/2010 | Cleanup Complete Determination Issued | per ROD | Debra Caillouet |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Mercury - Total | < Method 2 Most Stringent | 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.