Site Report: Adak SWMU 02 Causeway Minefield
| Site Name: | Adak SWMU 02 Causeway Minefield |
|---|---|
| Address: | OU A, Eastern Side of Clam Road, Adak, AK 99546 |
| File Number: | 2501.38.005 |
| Hazard ID: | 2276 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | Jamie McKellar, 9074515175 jamie.mckellar@alaska.gov |
| Latitude: | 51.953547 |
| Longitude: | -176.567189 |
| Horizontal Datum: | NAD83 |
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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
The SWMU 2 Candidate Site is located at the northeast corner of Clam Lagoon, north of downtown Adak. This area was identified as a candidate site based upon historical anecdotal information, some of which was provided by former EOD officers on Adak. The minefield was investigated in 1997 field season by SSPORTS. A single transect was used to investigate the area. An M2 series land mine was encountered 633 feet from the start point. Based on this find, the site was recommended for immediate remediation. The remediation of the site was completed the following year by SSPORTS. A 200 percent geophysical survey was conducted and 100 percent of the metallic debris was investigated and removed to a depth of 18 inches over the entire SWMU 2 area. The remedial activity located and disposed of training mines, service mines, and mine-related wastes which were found in this area along with mortars, Banglor torpedoes, and various pieces of OE scrap. Several large craters were noted by the field crews and it appears that this area was used for disposal of ordnance. Because remedial actions were completed in 1998 and environmental sampling was negative, NOFA was selected for the site in the OU B-1 ROD. Draft Close Out Report for Partial Delisting submitted for Department review on June 16. Comments were submitted to the Navy on August 16.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 7/29/1994 | Site Added to Database | COPC POL, chlorinated and non-chlorinated solvents, PAHs, PCBs, Ethylene Glycol and metals. | Former Staff |
| 6/16/1995 | Site Ranked Using the AHRM | Initial ranking. Action code added because it wasn't when the site was originally ranked. | Former Staff |
| 3/14/1997 | Update or Other Action | (Old R:Base Action Code = RIFS - Remedial Investigation / Feasibility Study). RIFS action added by Shannon and Wilson 3/14/97 based on Relative Risk Evaluation Worksheet dated 10/17/95. RIFS is current phase listed on worksheet. No pathways or receptors described. | S&W-Miner |
| 4/1/1999 | Update or Other Action | Site added as AOPC to OU-B. NOTE: OU-B includes 35 AOPCs with a high ADEC priority ranking. | Kevin Oates |
| 4/15/2000 | Record of Decision | The Record of Decision for this site was signed this date. | Elim Yoon |
| 12/28/2001 | Institutional Control Record Established | Institutional Control Established. Includes Equitable Servitude for: Commercial/Industrial Land Use Restrictions, Excavation permit required for areas with Soil Excavation Restrictions, requirements for Inspections and Reporting, requirements for Education Program, and requirements for Sign Inspections. See document “Adak Island Institutional Control Management Plan, Final Edition, December 2001, Prepared by: Engineering Field Activity, Northwest.” | Elim Yoon |
| 3/20/2003 | Site Number Identifier Changed | Changed Workplan from X1 to X9 to reflect presence of hazardous substances. | Former Staff |
| 6/2/2004 | Conditional Closure Approved | Remediation complete prior to ROD; ICs still in place for both landfill and minefield. | Jason Weigle |
| 9/1/2004 | Update or Other Action | Site also listed as MF-21 in Preliminary Assessment Report for OU B | Jason Weigle |
| 10/19/2004 | GIS Position Updated | Latitude and Longitude was derived using ArcGIS with either High Resolution Aerial Photography from the Navy with an up to 3 meters error, or line maps used in investigations combined with road layers, +/-25 feet accuracy. Metadata is as follows: Updated NAD 1983 State Plane Alaska 10 FIPS 5010 Feet; Projection: Lambert Conformal Conic; False Easting: 3280833.333333; False Northing: 0.000000; Central Meridian: -176.000000; Standard Parallel 1: 51.833333; Standard Parallel 2: 53.833333; Latitude of Origin: 51.000000; GCS North American 1983. | Jason Weigle |
| 2/9/2005 | Update or Other Action | Interim conveyance document contains an equitable servitude that restricts excavation or disturbance of soils or caps placed over this site without the expressed written approval of the US Navy. | Jason Weigle |
| 3/7/2005 | Update or Other Action | Added MRTS data, derived from ADNR and USGS range, township, and section data overlaid on lat/lon coordinates derived previously. Accuracy is equivalent to the lat/lon coordinates. MRTS information depicts the center point of range fans and target areas; actual target areas or fans may overlap several sections. | Jason Weigle |
| 3/8/2005 | Update or Other Action | Added legal description for site. | Jason Weigle |
| 6/16/2005 | Update or Other Action | Draft Close Out Report for Partial Delisting submitted for review on this date. | Jason Weigle |
| 8/16/2005 | Update or Other Action | Comments on Draft Close Out Report for Partial Delisting submitted to Navy on this date. | Jason Weigle |
| 4/5/2006 | Update or Other Action | File number 2501.38.005 assigned on this date. | Jason Weigle |
| 3/11/2024 | ANCSA Program Eligible | This site meets the criteria for the EPA Contaminated ANCSA Lands program: the site is on ANCSA conveyed land, the contamination occurred pre-ANCSA conveyance, and there is documented proof of contamination that exceeds DEC’s cleanup values in 18 AAC 75. This site will be listed as “verified” on EPA’s contaminated lands inventory. | Brittani Mack |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| UXO | Inactive Range Ordnance Management- 46.03.100(e)(7) | Soil |
Control Type
| Type | Details |
|---|---|
| Ordnance Awareness Program | An Ordnance Awareness Program was instituted as part of the OU B-1 Record of Decision. |
Requirements
| Description | Details |
|---|---|
| Ordnance Awareness Program | The Ordnance Awareness Program is a set of educational tools that are used to teach people about ordnance hazards on Adak. Annual evaluation of effectiveness included in the IC Inspection Report. |
There are no documents for this site report.
| Hazard ID | Site Name | File Number |
|---|---|---|
| 27909 | Adak Island OU A, B1, & B2 | 2501.38.007.01 |