| Action Date |
Action |
Description |
DEC Staff |
| 1/1/1994 |
Update or Other Action |
Site included in 1994 two-party SAERA agreement between state and Navy. |
Christina Goff |
| 10/14/1994 |
Site Added to Database |
TPH suspected. |
Former Staff |
| 2/23/1996 |
Site Ranked Using the AHRM |
Site ranked. Score = 41. |
Scott Pexton |
| 3/14/1997 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). RI action added by Shannon and Wilson on 3/14/97, based on Relative Risk Evaluation Worksheet dated 5/25/95. RI is current phase listed on worksheet. Pathways: groundwater. Receptors: Human - downtown area, free product on groundwater, moving toward airport ditch. |
S&W-Miner |
| 5/1/1999 |
Proposed Plan |
Site to be included in ROD for OU-A. |
Christina Goff |
| 9/1/1999 |
Update or Other Action |
Site addressed in ROD for OU-A. Recommendation for institutional controls and monitored natural attenuation. |
Kevin Oates |
| 4/15/2000 |
Record of Decision |
The Record of Decision for this site was signed this date. |
Elim Yoon |
| 3/1/2003 |
Update or Other Action |
The Final 2001 Annual Groundwater Monitoring Report was received. Navy recommends continued monitoring of natural attenuation.
|
Meghan Dooley |
| 10/11/2003 |
Record of Decision |
Site removed from OU A ROD by OU A ROD Amendment; Amendment selected LGM as RA. |
Sami Goldman |
| 3/17/2004 |
Institutional Control Record Established |
Interim conveyance document contains an equitable servitude that restricts the domestic use of groundwater. Site is also located in the downtown excavation notification zone. |
Jason Weigle |
| 6/17/2004 |
Update or Other Action |
Comments for the 2003 Annual Groundwater Monitoring report were sent. ADEC supports the Navy's recommendation to conduct a visual inspection of the shoreline area near well 02-230 for seeps and sheens. Other concerns are that the field team may not be familiar with the requirements in the CMP and SOP and changes in ARARs.
|
Meghan Dooley |
| 9/7/2004 |
Update or Other Action |
The Final 2003 Annual Groundwater Monitoring Report was received. GRO and BTEX concentrations have been below endpoint criteria for 2 consecutive sampling years at wells MRP-MW8 and 02-230, and DRO exceeded endpoint criteria at both wells. Navy recommends discontinuing GRO and BTEX monitoring, but continuing DRO for these two wells. Navy also recommends continued monitoring of total and dissolved leads at well MRP-MW15.
|
Meghan Dooley |
| 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 |
| 2/17/2005 |
Update or Other Action |
2004 Annual Monitoring report received. |
Jason Weigle |
| 3/4/2005 |
Update or Other Action |
Review of Draft 2004 Annual Monitoring report completed. |
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 |
| 3/20/2006 |
Update or Other Action |
The draft annual groundwater monitoring report for 2005 was received on this date. |
Jason Weigle |
| 4/5/2006 |
Update or Other Action |
File number 2501.38.003.01 assigned on this date. |
Jason Weigle |
| 4/7/2006 |
Update or Other Action |
Comments on the 2005 groundwater monitoring report submitted to the Navy. The 2005 monitoring round shows a continued presence of high concentrations of DRO in the groundwater two to three times the groundwater clean-up level. Due to the continued high concentrations, the Navy has proposed to include a sweep of the shoreline near the south end SA 79 to ensure that no seeps are appearing along the shore. The Department has stated that it will ask for a remedy re-evaluation if concentrations remain at their current level or increase. |
Jason Weigle |
| 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 |
| 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 (Including SA79) with increasing contaminant trends to determine if additional investigation or remediaiton is required. |
Guy Warren |
| 12/21/2007 |
Update or Other Action |
Received Draft Petroleum Summary Report for sites Antenna Field, SA79, Former Power Plant, SWMU 60, and SWMU 61 at the former Adak Naval Complex. The report summarizes the investigation activities that have been conducted at these sites to date in addition to 2007 monitoring results. During 2007 the Navy collected a ground water sample from between the point of compliance well and Sweeper Cove using a drive point. Labortory results form this sample did indicated that ground water would not impact adjacent surface water quality. The report recommends continued monitoring of the drive point location and additional monitoring at select site wells. |
Guy Warren |
| 1/9/2008 |
Update or Other Action |
Submitted comments on the Draft Petroleum Summary Report (PSR) to the Navy. The Department concurred with the recommended changes to the Annual Monitoring Program for this site. |
Guy Warren |
| 1/9/2008 |
Update or Other Action |
Site Status changed on this date from "Conditional Closure" to "active". Due to recent changes in guidance, sites where long term monitoring is ongoing are not eligible for "Conditional Closure". |
Guy Warren |
| 3/28/2008 |
Update or Other Action |
The comments for the draft 2007 Annual Groundwater Monitoring Report were sent. 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. ADEC recommends that a finite location be selected for the NL-04 sample and a consistent location be used every year because of tidal influence.
|
Meghan Dooley |
| 7/1/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Jill Taylor |
| 8/14/2008 |
Update or Other Action |
The Final 2007 Annual Groundwater Monitoring Report was received. The Navy recommendations are as follows: Adding well E-403 and Temporary Well NL-01 for DRO monitoring, and conducting DRO, TAH, and TAqH sampling at wells 02-230 and MRP-MW8 as well as shoreline inspections downgradient of well 02-230.
|
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 discontinuing monitoring at NL-01 because of tidal influences, and continuing monitoring at E-403 for one more year, and if DRO concentrations remain under endpoint criteria, that monitoring be discontinued in 2010.
|
Meghan Dooley |
| 3/12/2010 |
Update or Other Action |
The draft 2009 Annual Groundwater Monitoring Report was received on this date. The Navy recommends discontinuing monitoring at well E-403 and for TAH and TAqH at all locations in the site.
|
Meghan Dooley |
| 4/15/2010 |
Update or Other Action |
Comments for the draft 2009 Annual Groundwater Monitoring Report were sent on this date. ADEC concurs with the recommendations for this site.
|
Meghan Dooley |
| 5/27/2010 |
Update or Other Action |
The Draft SAP Additional Petroleum Characterization and figures were received |
Meghan Dooley |
| 2/14/2011 |
Document, Report, or Work plan Review - other |
The draft Site Characterization Report was received on December 30, 2010 and ADEC sent comments on February 14, 2011. The purpose of the additional characterization was to determine if DRO was migrating in groundwater to the adjacent surface water (Sweeper Cove) at concentrations greater than surface water criteria. Soil borings were completed and 2 wells were installed and the report concluded that groundwater was not migrating to surface water with concentrations of DRO, TAqH, and TAH above cleanup levels. No recommendations were offered. |
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 |
| 5/10/2011 |
Site Characterization Report Approved |
The final Site Characterization Report was received. No action in addition to the current remedy was recommended for the 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 |
| 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 groundwater monitoring at SA 79 continue as prescribed.
|
Meghan Dooley |
| 7/11/2011 |
Document, Report, or Work plan Review - other |
The Final 2010 Annual Groundwater Monitoring Report was received. Additional site characterization was completed in 2010 that involved installation of new wells. The report recommends adding the new wells (601 and 602) to the annual monitoring event and sampling for DRO. |
Meghan Dooley |
| 10/16/2012 |
Document, Report, or Work plan Review - other |
Submit acceptance letter to Navy regarding Final 2011 Annual Ground Water Monitoring. Final report included recomendation to discontinue monitoring at site well 602. |
Guy Warren |
| 4/5/2013 |
Document, Report, or Work plan Review - other |
ADEC sent comments on the draft 2012 Annual Groundwater Monitoring Report. ADEC concurs with recommendations to reduce monitoring at the site to odd years. |
Meghan Dooley |
| 6/4/2013 |
Institutional Control Periodic Reporting |
The Final 2012 Institutional Control Site Inspection Report was received. There were no observed changes to land use and no indications of groundwater use or excavation activities. Signs were present. ICs appear to be functioning as intended. |
Meghan Dooley |
| 9/8/2014 |
Document, Report, or Work plan Review - other |
Received, Final 2013 Annual Groundwater and Landfill Monitoring Report for Adak Alaska. DRO remains above endpoint criteria in site wells. Monitoring will continue as prescribed. |
Guy Warren |
| 9/10/2014 |
Institutional Control Periodic Reporting |
The Final 2013 Institutional Control Site Inspection Report was received. There were no observed changes to land use and no indications of groundwater use or excavation activities. Signs were present. ICs appear to be functioning as intended. IC inspection frequency has been reduced to every odd year. |
Guy Warren |
| 7/16/2017 |
Site Visit |
ADEC completed a three day site visit to Adak NAVFAC. All active sites were visited and current status discussed at length with NAVFAC representatives. Current field work activities were observed and noted. Work plan activities were proceeding as scheduled. No work plan deviations were evident. |
Darren Mulkey |
| 5/23/2018 |
Site Characterization Report Approved |
Annual Groundwater and Landfill Monitoring Report, 2017 Long-Term Monitoring, Operable Unit A was finalized. Natural attenuation of petroleum hydrocarbons has been demonstrated on Adak. As a result, the CMP, Revision 6 (Navy 2014) prescribed natural attenuation parameter (NAP) monitoring once every 5 years. This monitoring was last conducted in 2014 at all MNA sites. |
Darren Mulkey |
| 10/24/2018 |
Document, Report, or Work plan Review - other |
Reviewed and approved Adak Comprehensive Monitoring Plan Revision 7, Operable Unit A. All LTM sites are updated for ground and surface water monitoring. |
Darren Mulkey |
| 3/6/2019 |
Document, Report, or Work plan Review - other |
During the 2018 monitoring event, groundwater, surface water, and sediment samples were collected from 123 monitoring locations at 19 sites. Product thickness and depth to water measurements were performed at 159 locations from these sites. Monitoring was conducted to satisfy Operable Unit A Record of Decision (Navy, ADEC, and EPA 2000) remedy requirements and subsequent to free product recovery remedy requirements that were established under the State-Adak Environmental Restoration Agreement (Navy and ADEC 1994). Monitoring was conducted to assess the remedies of monitored natural attenuation, limited groundwater monitoring, surface water protection, and compliance. Based on the previous monitoring results, the monitored natural attenuation remedies appear to be effective and biodegradation appears to be occurring to varying degrees at all of the monitored natural attenuation sites (Navy 2017). Monitoring for natural attenuation parameters has been reduced from annually to every 4 to 6 years to coincide with the next 5-year review, and was conducted in 2018.
Because DRO concentration remains at or above the endpoint criterion in the currently monitored site wells, it is recommended that groundwater monitoring continue as prescribed. |
Darren Mulkey |
| 7/12/2019 |
Update or Other Action |
Site location was updated on this date. Coordinates for this site are used to determine the presence and position of the site on BLM’s ANCSA Conveyed Land web map. |
Rebekah Reams |
| 8/9/2024 |
Long Term Monitoring Workplan or Report Review |
WASTE MANAGEMENT PLAN APPROVED: Final Waste Management Plan 2024 Long-Term Monitoring at Operable
Unit A and 2024 Waste Management Plan Addendum (via email). |
Jamie McKellar |
| 8/21/2024 |
Site Visit |
CS staff conducted site visits and attended a Regional Advisory Board (RAB) meeting on Adak Island. During the trip, CS staff and representatives from the US Navy also participated in a “RAB Field Day” organized by a RAB member who wanted to highlight some issues of concern - petroleum contamination at Sweeper Creek, the spillway at Lake Andrew, and munitions concerns in Parcel 4. While on the island, CS staff also met with contractors conducting PFAS sampling and long-term monitoring activities, and CS staff attended a community meeting hosted by the Aleut Corporation (TAC) and its contractor to discuss the community’s Brownfields Community Wide Assessment Grant. |
Jamie McKellar |
