| Action Date |
Action |
Description |
DEC Staff |
| 4/15/2000 |
Site Added to Database |
Petroleum. |
Elim Yoon |
| 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, Groundwater Restrictions, Excavation permit required for areas with Soil Excavation Restrictions, and requirements for Inspections and Reporting. See document “Adak Island Institutional Control Management Plan, Final Edition, December 2001, Prepared by: Engineering Field Activity, Northwest.” |
Elim Yoon |
| 11/10/2003 |
Record of Decision |
Site removed from OU A ROD by OU A ROD Amendment. |
Sami Goldman |
| 8/31/2004 |
Update or Other Action |
Site is currently in draft proposed plan stage |
Jason Weigle |
| 9/15/2004 |
Risk Assessment Report Approved |
Risk Assessment approved as part of Focused Feasibility Study for Free-Product Sites Below Health Goals |
Jason Weigle |
| 9/15/2004 |
Site Characterization Report Approved |
Site Characterization Report approved as part of Focused Feasibility Study for Free-Product Sites Below Health Goals |
Jason Weigle |
| 9/15/2004 |
Update or Other Action |
Focused Feasibility Study Approved for this site. |
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 |
| 12/10/2004 |
Cleanup Level(s) Approved |
10X groundwater cleanup level selected for this site in the Proposed Plan. |
Jason Weigle |
| 12/10/2004 |
Proposed Plan |
Proposed Plan approved on this date. |
Jason Weigle |
| 1/24/2005 |
Update or Other Action |
Received copy of the Draft Decision Document for Petroleum Sites with No Unacceptable Risk for review. |
Jason Weigle |
| 2/8/2005 |
Update or Other Action |
Risk assessments were used to justify remedial endpoints for active remediation, not final clean-up endpoints. |
Jason Weigle |
| 2/8/2005 |
Update or Other Action |
Limited groundwater monitoring selected as remedial action in the Proposed Plan. |
Jason Weigle |
| 2/8/2005 |
Update or Other Action |
Navy has attempted to characterize the source of this seep to no avail. All pipelines and junctions have been inspected and/or secured and cleaned. |
Jason Weigle |
| 2/8/2005 |
Update or Other Action |
Interim conveyance document contains an equitable servitude that restricts residential land use as well as the domestic use of groundwater. Site is also located in the downtown excavation notification zone. |
Jason Weigle |
| 2/17/2005 |
Update or Other Action |
Completed review of the Draft Decision Document for Petroleum Sites with No Unacceptable Risk. Sent comments to the Navy for incorporation into the Decision Document. |
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 |
| 5/20/2005 |
Record of Decision |
Decision Document for Petroleum Sites with No Unacceptable Risks signed on May 20, 2005. |
Jason Weigle |
| 5/20/2005 |
Long Term Monitoring Established |
Limited groundwater monitoring selected for this site. |
Jason Weigle |
| 5/23/2005 |
Conditional Closure Approved |
No further action other than monitoring expected for this site. |
Jason Weigle |
| 1/11/2006 |
Update or Other Action |
Interim removal action completed at this site. The OU A ROD selected free product recovery as an interim measure at this site. A report, the Closure Report, Interim Action Free Product Recovery, was submitted on November 18, 2005 for review. The Department completed review and submitted a closure letter on January 11, 2006, closing the interim remedy in favor of the currently selected remedy in the Decision Document for this site. |
Jason Weigle |
| 1/19/2006 |
Update or Other Action |
File number issued 2501.38.003.02. |
Aggie Blandford |
| 1/27/2006 |
Update or Other Action |
The Final Closure Report, Interim Free Product Recovery for this site was received on this date. |
Jason Weigle |
| 3/20/2006 |
Update or Other Action |
Final 2005 Institutional Control Primary Site Inspection Report received on this date. No IC problems noted at this site. |
Jason Weigle |
| 3/20/2006 |
Update or Other Action |
The draft annual groundwater monitoring report for 2005 was received on this date. |
Jason Weigle |
| 4/7/2006 |
Update or Other Action |
Comments on the 2005 annual groundwater monitoring event were sent to the Navy. Free product was detected in well 04-146 during the 2005 monitoring event, although no sheen was evident on Kuluk Bay. Three wells showed decreasing concentrations (04-405, 04-145, and NS-2) and two showed increases in concentrations (04-147 and 04-403). Not enough data is available for the site to establish a statistical trend. |
Jason Weigle |
| 6/9/2006 |
Update or Other Action |
The Final 2005 Annual Groundwater Monitoring Report was received on this date. The Navy recommends visual inspection of seeps and sheen along adjacent shoreline of Kuluk Bay and other monitoring should continue as prescribed.
|
Meghan Dooley |
| 12/18/2006 |
Update or Other Action |
Received Draft 2006 Institutional Control Primary Site Inspection Report that details the results of annual Institutional Control (IC) inspections to determine the effectiveness of IC's selected in the OUA Record of Decision. |
Guy Warren |
| 12/27/2006 |
Update or Other Action |
Submitted comment letter to the Navy on the Draft Institutional Control Primary Site Inspection Report. Comments focused on the adequacy of the excavation notification program, the effectiveness of the ordnance awareness program, and visitor notification of ICs. |
Guy Warren |
| 2/15/2007 |
Update or Other Action |
Received Draft Annual Ground Water Monitoring Report, which presents the results of September 2006 ground water monitoring activities at 24 sites at the Former Adak Naval Complex. |
Guy Warren |
| 3/13/2007 |
Update or Other Action |
Received the Final 2006 Institutional Control Primary Site Inspection Report. Several Department comments will be addressed through revisions of the Institutional Control Management Plan planned for 2007. The remaining comments were addressed and additional recomendations to increase efforts to notify island visitors of ICs (including the ordnance awareness education program) were included in the final document. |
Guy Warren |
| 4/25/2007 |
Update or Other Action |
Submitted comments on the Draft Annual Ground Water Monitoring Report. Primary areas of concern include: increasing trends in contaminant levels at several sites, Increased free product, and adherence to field sampling procedures. In general it appears that declining ground water levels are responsible for the increase in free product and dissolved contaminant concentrations. The Navy and DEC have agreed to reinstate free product recovery at those sites showing increases in free product. |
Guy Warren |
| 7/26/2007 |
Update or Other Action |
Received Final Annual Ground Water Monitoring Report, September 2006. The Department's comments have been addressed in the Final Report. The Navy has agreed to conduct additional free product recovery at those sites with increassed free rpoduct. The Navy has agreed to evaluate conditions at several sites with increasing contaminant trends to determine if additional investigation or remediaiton is required. |
Guy Warren |
| 3/28/2008 |
Update or Other Action |
The comments for the draft 2007 Annual Groundwater Monitoring Report were sent. General concerns include: consistency of groundwater depth and flow measurements between sites, reporting of free product recovery methods and results, inclusion of the Petroleum Summary Report in recommendations for applicable sites in this report, tracking changes to the CMP, and extending surface water and sediment monitoring to appropriate sites.
|
Meghan Dooley |
| 8/14/2008 |
Update or Other Action |
The Final 2007 Annual Groundwater Monitoring Report was received on this date. The Navy recommends discontinuing sampling at 5 wells, conducting annual visual shoreline inspections of Kuluk Bay for seeps and sheen downgradient of well 04-146, and discontinuing DRO sampling but continuing free phase product monitoring at well 04-146.
|
Meghan Dooley |
| 5/20/2009 |
Update or Other Action |
The comments for the draft 2008 Annual Groundwater Monitoring Report were sent. General concerns include: adequacy of the MNA remedy and increasing contaminant levels, implementation of recommendations from the Petroleum Summary Report, effects of the March 2008 earthquake and documentation in the report, the monitoring well network, and the inclusion of useful photos.
|
Meghan Dooley |
| 8/21/2009 |
Update or Other Action |
The Final 2008 Annual Groundwater Monitoring Report was received on this date. The Navy recommends to reduce monitoring to every even year for DRO at 3 wells, continue free product monitoring annually, and recommends that sediment samples be collected during low tide on the embankment if sheen is observed during 09 shoreline inspections.
|
Meghan Dooley |
| 3/12/2010 |
Update or Other Action |
The draft 2009 Annual Groundwater Monitoring Report was received on this date. The Navy recommends collecting shoreline sediment and surface water for DRO analysis during low tide downgradient of well 04-146 if sheen is observed during the 2010 shoreline inspection.
|
Meghan Dooley |
| 4/15/2010 |
Update or Other Action |
Comments for the draft 2009 Annual Groundwater Monitoring Report were sent on this date. ADEC does not concur with recommendations for cessation of monitoring at well 02-479 as it appears to have an increasing trend in DRO concentrations.
|
Meghan Dooley |
| 12/7/2010 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 74395 name: auto-generated pm edit Adak NORPAC Hill Seep Area |
Meghan Dooley |
| 2/16/2011 |
Document, Report, or Work plan Review - other |
The draft 2010 IC Site Inspection Report was received on January 11, 2011 and DEC sent comments on February 16, 2011. There were no observed problems with ICs at this site. |
Meghan Dooley |
| 5/12/2011 |
Document, Report, or Work plan Review - other |
The Final 2010 IC Site Inspection Report was received by ADEC. ICs appear to be functioning as intended at this site. |
Meghan Dooley |
| 6/27/2011 |
CERCLA ROD Periodic Review |
The draft Third 5-Year Review was received. The purpose of the 5-Year Review is to evaluate the effectiveness of the remedy and determine if further action is warranted to protect human health and the environment. The document listed actions taken to address issues from the previous 5-Year Review, and offered new recommendations based on data collected from 2006 to 2010 from Operable Units A and B-1. It concluded that the remedy is functioning as intended at all but 4 sites and provided the following area-wide recommendations:
1. Update the current Comprehensive Monitoring Plan, Institutional Control Monitoring Plan, Operation and maintenance Plan,
2. Update the document repositories,
3. Assess and update as necessary the Community Relations Plan, and
4. Address action items identified during 2010 site inspections.
The 5-Year Review recommends that monitoring be discontinued at the NORPAC Hill Seep Area site. Groundwater has met endpoint criteria and minimal product has been recovered from the site since 2007.
|
Meghan Dooley |
| 9/2/2011 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74395 auto-generated pm edit Adak NORPAC Hill Seep Area. |
Meghan Dooley |
| 9/19/2011 |
Cleanup Complete Determination Issued |
ADEC issued a "Cleanup Complete with Institutional Controls" Determination. Minimal product has been recovered from site wells from 2007 to 2010, and so free product recovery ceased after March 2011. Concentrations of DRO in groundwater are below 10 times the Table C values, however they are above the most stringent Table C values, therefore Institutional Controls are required. Results of the sediment samples at the seep were below the endpoint established for South of Runway 18/36 in both 2009 and 2010. Institutional Controls in affect at the NORPAC Hill Seep Area are as follows:
• An Equitable Servitude was established as part of the land transfer to ensure
that all applicable land use restrictions are included on land titles to ensure
that future land owners are aware of the restrictions.
• Adak Downtown ground water use restriction.
• Land use restrictions that limit use of the site to commercial/industrial and
prohibit residential occupancy of the site.
• IC excavation permits are required for proposed excavations at this site and
signage indicating the soil restrictions must be posted. |
Meghan Dooley |
| 6/4/2013 |
Institutional Control Periodic Reporting |
The 2012 Final Institutional Controls Site Inspection Report was received. There were no indications of groundwater use, changes in land use, or unauthorized excavations. Excavation restriction signs were clearly visible. ICs appear to be functioning as intended. |
Meghan Dooley |
| 9/10/2014 |
Institutional Control Periodic Reporting |
The 2013 Final Institutional Controls Site Inspection Report was received. There were no indications of groundwater use, changes in land use, or unauthorized excavations. Excavation restriction signs were clearly visible. ICs appear to be functioning as intended. IC inspection frequency has been reduced to every odd year. |
Guy Warren |
| 3/16/2015 |
Update or Other Action |
Received Final 2014 Institutional Controls Site Inspection Report, OUA and OUB of the former Adak Naval Complex. No recommendations for site in report, as all IC’s appear to be functioning as intended. Next IC inspection is scheduled to occur in 2019 in coordination with the 5-year review.
|
Guy Warren |
| 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 |
