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Site Report: Adak SA 80 Steam Plant 4


Site Name: Adak SA 80 Steam Plant 4
Address: OU A, Adak Naval Air Facility, Adak, AK 99546
File Number: 2501.38.003.04
Hazard ID: 2206
Status: Active
Staff: Darren Mulkey, darren.mulkey@alaska.gov
Latitude: 51.876572
Longitude: -176.639947
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

Steam Plant #4 was used to supply steam to two airplane hangars and the Birchwood Barracks. The steam plant was built in the late 1940s and was operational until 1995, when an earthquake severed the main steam line that connected the plant to buildings in the area. The site includes the steam plant building, two small sheds, and a gravel parking lot. USTs 27090 and 27089 were 23,000 gallon tanks that were located side by side. They were used to provide JP-5 to the boilers in the plant. UST 27090 removed in 1993; UST 27089 was removed in 1995. The tanks were filled from the Main Road Pipeline. A release of 50-70 gallons occurred when a service line burst in 1991. Free product was observed in wells around the site. An interim remedy of free-product recovery was selected under SAERA in OU A ROD. Free-product recovery has been determined to be no longer necessary. Site was removed from the OU A ROD by the OU A ROD Amendment for regulation under 18 AAC 75. Decision document signed for this site on May 20, 2005 (Decision Document for Petroleum Sites with no Unacceptable Risks).

Action Information

Action Date Action Description DEC Staff
1/1/1994 Update or Other Action Site included in State-Navy two-party SAERA agreement for petroleum sites. No Longer Assigned
10/14/1994 Site Added to Database TPH suspected. No Longer Assigned
2/23/1996 Site Ranked Using the AHRM Site ranked. Score = 4. Scott Pexton
5/1/1998 Proposed Plan Site to be included in OU-A ROD. Christina Goff
9/1/1999 Update or Other Action Site included in OU-A ROD and requires further evaluation due to presence of free product impacting groundwater. Free product recovery required. 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, 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
3/1/2003 Update or Other Action The Final 2001 Annual Groundwater Monitoring Report was received. Navy recommends continued sentinel monitoring at this site. Meghan Dooley
10/10/2003 Record of Decision Site removed from OU A ROD by OU A ROD Amendment; will be regulated under 18 AAC 75. Sami Goldman
6/17/2004 Update or Other Action Comments for the 2003 Annual Groundwater Monitoring report were sent. General concerns include: the field team may not be familiar with the requirements in the CMP and SOP, and changes in ARARs. Meghan Dooley
9/1/2004 Update or Other Action Site is currently in draft proposed plan stage. Jason Weigle
9/7/2004 Update or Other Action The Final 2003 Annual Groundwater Monitoring Report was received. The Navy recommends continuing current monitoring schedule. Meghan Dooley
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 Table C groundwater clean-up levels selected for remediation. 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 Monitored natural attenuation selected in proposed plan. Jason Weigle
2/9/2005 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 2004 Annual Monitoring report received. 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
3/4/2005 Update or Other Action Review of Draft 2004 Annual Monitoring report completed. Jason Weigle
3/4/2005 Update or Other Action Also see Event ID 817 in LUST Database for additional information on this site. 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 this date. Jason Weigle
5/20/2005 Long Term Monitoring Established Long-term monitored natural attenuation selected as the remedy for this site. Jason Weigle
5/23/2005 Update or Other Action The Final 2004 Annual Groundwater Monitoring Report was received. The Navy recommends reducing NAP monitoring frequency at wells 04-103 and SP4-3 to once every 5 years. Meghan Dooley
5/23/2005 Update or Other Action No further remedial action is expected other than long term monitoring at this site. Jason Weigle
1/19/2006 Update or Other Action File number issued 2501.38.003.04. Aggie Blandford
2/16/2006 Update or Other Action Revised Draft Petroleum Summary Report Received. The report summarizes the additional 'confirmation' sampling that the Navy conducted as part of the Decision Document for Petroleum Sites with No Unacceptable Risk. Groundwater was sampled at two wells and all results were within acceptable levels based on the risk assessment in the focused feasibility study for the site. Approximately six gallons of free product were removed from well 04-173 prior to sampling. The well had a moderately high level of DRO in the sample. The site will be evaluated over the next two field seasons to determine the possible need to restart free product recovery. Two soil samples were collected between wells 04-172 and 04-173 at depths of 6-7 and 12-14 feet respectively to determin if the majority of the free product and free-phase contamination was located in the confined upper aquifer or was prevalent in the deeper unconfined aquifer. The 6-7 foot was sample was non-detect and the 12-14 foot was 5920 mg/kg, consistent with other borings surrounding this gap in the data. 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 groundwater monitoring report submitted to the Navy. 2005 monitoring removed a signficant volume of free product from well 04-173. Approximately 2 gallons of free product was removed from the well during the monitoring event; a total of 8.5 gallons have been removed from the well in two removals in September 2004 and September 2005. Several other wells showed DRO contamination near or above clean-up levels. All wells in the group have not been sampled enough to establish statistical trends. If free product continues to be an issue at well 04-173, the Department will request that the Navy install a passive collection system in the well. Jason Weigle
6/9/2006 Update or Other Action The Final 2005 Annual Groundwater Monitoring Report was received. The Navy recommends continuing monitoring 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. ADEC recommends free product recovery should continue at this site and additional wells in the vicinity of the FP wells should be gauged for presence of free product. If they contain free product, they should be added to the recovery effort. Meghan Dooley
6/27/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Evonne Reese
8/14/2008 Update or Other Action The Final 2007 Annual Groundwater Monitoring Report was received on this date. The Navy recommends collecting product thickness measurements at wells 04-164 and 04-173. 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. ADEC concurs with the cessation of monitoring at well 04-103, however does not concur with cessation of monitoring at well 04-801. 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 well 04-103 and reducing monitoring for DRO at SP-4-3 to every even year. Monitoring for free phase product should continue as prescribed. Meghan Dooley
3/12/2010 Update or Other Action The draft 2009 Annual Groundwater Monitoring Report was received on this date. The Navy recommends no changes to the monitoring program for this site. Meghan Dooley
4/15/2010 Update or Other Action Comments for the draft 2009 Annual Groundwater Monitoring Report were sent on this date. General concerns include the use of a downgradient well for background comparison. ADEC recommends additional background wells for NAP analysis, and concurs with the recommendations for the site. Meghan Dooley
2/16/2011 Report or Workplan 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 Report or Workplan Review - Other The Final 2010 IC Site Inspection Report was received by ADEC. IC's appear to be functioning as intended for 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 continue as prescribed at SA 80 and that free product recovery activities be reduced to six times per year. Meghan Dooley
7/11/2011 Report or Workplan Review - Other The Final 2010 Annual Groundwater Monitoring Report was received. Concentrations of DRO remain above endpoint criteria, and so monitoring is recommended to continue as prescribed. Free product recovery is recommended to be discontinued at wells 04-155, 04-164, and SP4-2, but continue at wells 04-157, 04-158, and 04-173. Meghan Dooley
9/27/2011 Report or Workplan Review - Other ADEC reviewed and approved the Operations and Maintenance Plan for free product recovery. The plan addresses wells to be included in the free product recovery program and sites for boom maintenance. Meghan Dooley
10/16/2012 Report or Workplan Review - Other Submit acceptance letter for the Final 2011 Annual Groundwater monitoring report. Annual monitoring program is recomended to continue unchanged. Guy Warren
4/5/2013 Report or Workplan Review - Other ADEC sent comments on the draft 2012 Annual Groundwater Monitoring Report. ADEC concurs with recommendations to reduce monitoring frequency to odd years at the site and discontinue sampling at wells 04-801 and SP4-2. 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
9/8/2014 Report or Workplan Review - Other Received, Final 2013 Annual Groundwater and Landfill Monitoring Report for Adak Alaska. DRO remains above endpoint criteria in site wells. The presence of free product is decreasing and concentrations are stable or decreasing. Monitoring will continue as prescribed. Guy Warren
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
6/10/2015 Update or Other Action Received Final Annual Groundwater and Landfill Monitoring Report, 2014 Long Term Monitoring at OUA of the Former Adak Naval Complex. The report does not recommends any changes to the monitoring program for this site. Measureable free product continues to be measured in site wells and periodic free product recovery activities continue at the site. Wells exhibit a stable concentration trend. 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

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
DRO > Table C Groundwater

Control Type

Type Details
Equitable Servitude The Equitable Servitude to the Interim Conveyance Document restricts groundwater use and residential land use.
Institutional Control Management Plan The Institutional Control Management Plan, a supbart of the base-wide Comprehensive Monitoring Plan, requires the completion of a dig notification in the Downtown Area and at several outback locations.

Requirements

Description Details
Excavation / Soil Movement Restrictions All excavation within the 'downtown area' of Adak, as defined in the Equitable Servitude to the Interim Conveyance Document, must be submitted to the City of Adak and the Navy for review three days prior to excavation. Annual report of excavation notifications included in the IC Inspection Report.
Restricted to Industrial / Commercial Land Use Equitable servitude restricts land uses to non-residential uses. Site is inspected and reported yearly to ensure there are no residential land uses taking place.
Groundwater Use Restrictions The Equitable Servitude restricts groundwater use in the Downtown Area. Site is inspected and reported yearly to ensure groundwater is not being used in the Downtown Area.
Groundwater Monitoring The Comprehensive Monitoring Plan Rev. 2 requires annual groundwater monitoring for this site. Groundwater is sampled yearly for various parameters.

There are no documents for this site report.

Missing Location Data

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