Division of Spill Prevention and Response

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Site Report: Three Lakes Road Parcel


Site Name: Three Lakes Road Parcel
Address: Three Lakes Loop Road, 10 Mile Mitkof Highway, Petersburg, AK 99833
File Number: 1521.38.001
Hazard ID: 3866
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 56.683693
Longitude: -132.924020
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

Site Assessment Phase II sampling found that 4-5,000 mg/kg DRO/RRO was present in soil across the back of the shop in the northwest corner of the property where fuel and equipment were stored. The historical contamination is attributed to incidental fuel spillage and solid waste casually buried in the fill material that was imported to cover native forest soil root layer and muskeg. Concerns about off-site migration to muskeg along north boundary are not supported by results of Phase II sampling and analysis. No floor drains or signs of petroleum spillage are associated with the building. Facility operater Mitkof Logging was under lease by BLM prior to property transfer to State of Alaska. Property known as Falls Creek parcel (land sale contract MHT 0100112) 2.2 acres. Muskeg is anoxic peat soil with intersperced areas of perched ground water and surface water ponds.



Action Information

Action Date Action Description DEC Staff
4/2/2002 Site Added to Database Confirmed report of petroleum contamination of state land prepared for conveyance. Bruce Wanstall
4/2/2002 Site Ranked Using the AHRM Preliminary ranking. Bruce Wanstall
10/23/2002 Update or Other Action Phase II is planned by Mental Health Trust who sold the land recently conveyed from DNR. Site Status is still Unconfirmed. Bruce Wanstall
1/7/2003 Update or Other Action Discussion with Trust Land Office consultant about the Phase I Report. If accepted by TLO department will be copied, fairly certain that a petroleum release from the vehicle shop area pad has migrated to the surrounding muskeg. Bruce Wanstall
7/14/2003 Update or Other Action Site Characterization workplan received for review. Site work scheduled for August. Bruce Wanstall
7/21/2003 Site Characterization Workplan Approved Site Characterization Workplan approval letter sent. Bruce Wanstall
8/8/2003 Update or Other Action CS staff present for site characterization of property also known as Falls Creek Shop; exploratory trenching used to screen & sample subsurface soil around the shop building. Soil screening and observation identified solid waste/several batteries and weathered petroleum contamination. Soil and downgradient surface water analytical samples collected. Bruce Wanstall
8/14/2003 GIS Position Updated Global Positioning System latitude/ longitude coordinates recorded. Metadata calibrated to NAD 27; USGS 1:24,000 scale map projection saved in bitmap format at 'jnsvr' G:\SPAR\Spar-Contaminated Sites\38 Case Files (CSites)\1521 Petersburg\1521.38.001 Three Lakes Road Parcel. Bruce Wanstall
10/10/2003 Update or Other Action Characterization Report and Cleanup Action Plan received. Bruce Wanstall
10/16/2003 Update or Other Action Cleanup funding options discussion with landowner. Bruce Wanstall
10/29/2003 Update or Other Action File under review for CIP funding for corrective action plan. Bruce Wanstall
1/29/2004 Update or Other Action Property management transferred to DNR; remedial options discussed with land manager; current policy favors off-site remediation to avoid institutional controls. Bruce Wanstall
2/4/2004 Site Characterization Report Approved Areas of concern identified in the Phase I Site Assessment are adequately characterized; proposed cleanup plan modification is needed. Bruce Wanstall
2/26/2004 Update or Other Action File review for Record of Decision; Corrective Action Plan for on-site remediation under consideration; discussion with land manager for implementation under property lease or sale agreement. Bruce Wanstall
5/11/2004 Cleanup Level(s) Approved Alternative Cleanup Levels and proposed Corrective Action Plan approved with changes allowing on-site remedial option under property lease or purchase agreement. Bruce Wanstall
10/20/2004 Update or Other Action Property lease application recieved by DNR; bid estimates to complete on-site remediation under consideration by DNR were discussed. Bruce Wanstall
1/28/2005 Update or Other Action Draft request for propsals reviewed; comments sent to DNR project manager. Bruce Wanstall
3/23/2005 Update or Other Action Site cleanup and soil remediation workplan proposal review for prospective contractor; approval email sent to consultant and DNR PM Bruce Wanstall
3/24/2005 Update or Other Action Site cleanup and soil remediation workplan proposal review for potential contractor; approval email sent to consultant and DNR PM Bruce Wanstall
3/29/2005 Update or Other Action Site cleanup and soil remediation workplan proposal review for prospective contractor; approval email sent to consultant and DNR PM Bruce Wanstall
5/19/2005 Cleanup Plan Approved Soil removal excavations investigation findings discussed by telephone; workplan adjustments in volume of soil removal are acceptable pending work plan amendment summarizing the approved changes. Bruce Wanstall
5/20/2005 Meeting or Teleconference Held Workplan amendment reviewed with land manager and approval of changes sent by email. Bruce Wanstall
8/8/2005 Update or Other Action Soil treatment data recieved by email; QA/QC review of lab data completed. Bruce Wanstall
8/15/2005 Update or Other Action Emailed confirmation of verbal approval of laboratory data on samples collected from the limits of the excavation and soil treatment stockpile. Backfill of the excavation is approved. Bruce Wanstall
8/30/2005 Update or Other Action Deed Notice draft in review for institutional control reservation inherent with Method Three ACL cleanup closure. Bruce Wanstall
9/1/2005 GIS Position Updated Datum shift from NAD 27 to NAD 83 calculated and entered into the record to prepare site map for Site Summary publication on DEC website. Bruce Wanstall
10/7/2005 Institutional Control Record Established Deed Notice recorded. The Document contains final sampling locations at the limits of the contaminated soil on the property displayed on a scaled plat map. The remediated and stabilized petroleum contaminated soil is located on the rear half of the northwest corner of the 2.2 acre property extending to an average depth of four feet below ground surface. Beginning at the former fuel storage area southwest of the shop building and continuing behind the building toward the north just beyond the northwest corner of the building where a stretch of clean soil was found; the remediated soil then resumes near the north property line where buried solid waste was recovered. Pursuant to 18 AAC 75.370 (b), none of this soil can be transported to an off-site location without coordinating with the DEC to ensure protection to human health and the environment. Bruce Wanstall
10/7/2005 Conditional Closure Approved NFRAP letter was sent to the land manager; pursuant to 18 AAC 75.370 (b), a property Deed Notice was recorded informing prospective purchasers that if removal of soil from the areas of contaminated soil on the property becomes necessary, DEC must be notified in advance to ensure that final placement of the soil does not violate water quality or petroleum regulations. Bruce Wanstall
12/4/2013 Institutional Control Compliance Review IC compliance review conducted. Evonne Reese
1/8/2016 Institutional Control Compliance Review IC compliance review conducted and an IC reminder letter was issued to the responsible party on this date. Reminder system set to follow-up in 2021. Kristin Brown
6/8/2017 Institutional Control Compliance Review IC compliance review conducted. Closure/IC Details updated. Periodic review has been reduced to every three years since this site has a groundwater use restriction. Reminder system reset to follow-up in 2019. Kristin Brown

Contaminant Information

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


Control Type

Type Details
Notice of Environmental Contamination (Deed Notice) Document No. 2006-000181-0 recorded in the Petersburg Recording District of the State Recorder's Office on 3/23/2006.


Requirements

Description Details
Excavation / Soil Movement Restrictions Concentrations of diesel range hydrocarbons (DRO) and polycyclic aromatic hydrocarbons (PAHs) above the most conservative Method Two cleanup levels for the migration to groundwater pathway remain beneath the generator building and in heterogeneous soil and cobble in the down-gradient spill plume areas designated as SB1 and SB3. The quantity of remaining contaminated soil above Method Two cleanup levels is estimated at 23 cubic yards. If removal of soil from the contaminant plume area of the property becomes necessary the DEC will be notified in advance to ensure that final placement of the soil does not violate water quality or petroleum regulations.
Groundwater Use Restrictions If groundwater well installation on the property is planned, notify the DEC.
Periodic Review Every three years.
Advance approval required to transport soil or groundwater off-site. Standard condition.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) Standard condition.