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Site Report: Alyeska Franklin Bluffs Camp


Site Name: Alyeska Franklin Bluffs Camp
Address: Mile 377.3 Dalton Highway, 37 Mi. South of Deadhorse, Prudhoe Bay, AK 99734
File Number: 330.38.061
Hazard ID: 14
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 69.717750
Longitude: -148.704243
Horizontal Datum:WGS84

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 site was used as a construction camp during construction of the Trans Alaska Pipeline System in the early 1970s. During construction, the camp was used for personnel housing, vehicle maintenance and storage, construction material staging, and fuel storage and transfer. In 1975, approximately 30,000 gallons of diesel were released to the camp pad and some contamination migrated to nearby wetlands at the edge of the pad. Alyeska conducted initial spill response and cleanup including product recovery according to company procedures. In 1985, Alyeska’s camp closeout was approved by Alaska Department of Natural Resources (ADNR). Multiple users have occupied the site since it was used as a construction camp. Multiple contaminants had remained from spills during operations of a pipeline construction camp. Soil, GW and SW contamination existed, fresh water and wetlands present, anadromous fish stream nearby. TAPS Alignment: AS131; MP40. Multiple users have had permits from the State. The Camp was being considered by the Dalton Highway P&A Board for future development. Land was selected by the North Slope Borough. Recreational and subsistence hunting, fishing and food gathering activities occur throughout the area. The site is located within 5 miles of Franklin Bluffs Peregrine Falcon Zone of Restricted Activity.

Action Information

Action Date Action Description DEC Staff
4/1/1998 Update or Other Action Risk-Based Corrective Action at Franklin Bluffs Camp 1997 Project Report submitted by Oasis Grant Lidren
6/30/1998 Site Ranked Using the AHRM Initial ranking. Donald Seagren
7/1/1998 Site Added to Database Site added by staff. Multiple contaminants. Donald Seagren
8/16/1999 Site Characterization Report Approved 1998 Project Report - Surface and GW Monitoring and Risk Based Corrective Action - soil excavation and thremal treatment. Donald Seagren
1/24/2000 Update or Other Action Reviewed 1999 Surface and GW Monitoring report. Donald Seagren
7/24/2000 Site Characterization Workplan Approved Reviewed and approved workplan for additional site assessment investigation to meet Method 2 cleanup levels. Donald Seagren
11/27/2000 Cleanup Level(s) Approved Reviewed and approved Alyeska request to use Method 2 soils cleanup levels for the site. Donald Seagren
12/6/2000 Update or Other Action Responded to information request from JPO regarding soil and GW cleanup levels. Donald Seagren
12/14/2000 Site Ranked Using the AHRM Changed Toxicity Value from 4 to 2 because contaminants of concern are reported to be petroleum. No Longer Assigned
1/17/2001 Update or Other Action Franklin Bluffs Camp Additional Assessment Activities Report submitted to ADEC. According to the report, although soils exceeding Method 2 cleanup levels were identified at SB11 in 1996 (3,600 ppm GRO), the additional investigation conducted in 2000 did not identify any soils exceeding Method 2 cleanup levels in this area. Soils may still exist on-site that exceed Method 2 cleanup levels at SB11. IT plans on removing the impacted soil above method 2 cleanup levels and request closure from ADEC. Deborah Williams
1/19/2001 Update or Other Action 2000 Surface Water and Groundwater Monitoring Report, Franklin Bluffs Camp submitted to ADEC. The 2000 monitoring results indicate that concentrations of all contaminants of concern have generally remained stable or decreased and that all contaminant concentrations are below ADEC cleanup levels for the site. IT recommends discontinuing groundwater and surface water monitoring at the Franklin Bluffs Camp. Deborah Williams
7/31/2001 Cleanup Plan Approved Corrective action workplan approval to remove soils contaminated with GRO above Method 2 Arctic Zone levels. Renee Evans
2/12/2002 Update or Other Action ADEC received the Corrective Action Report for the Alyeska Franklin Bluffs Camp. In August of 2001, Alyeska removed approximately 150 cubic yards of GRO and benzene contaminated soil. Past results had indicated GRO levels above the ADEC inhalation and ingestion cleanup levels. The excavation occurred 50 feet north of SB-11 which is located in the truck pull out area. Originally there was a small stain approximately four feet in diameter identified. There was no sheen on the adjacent surface water body. The final excavation reached a depth of 5.5 feet bgs. Excavation confirmation sample results less than Method 2 arctic zone cleanup levels. SLR recommended site closure. Deborah Williams
7/17/2007 Exposure Tracking Model Ranking Initial ranking completed. Deborah Williams
2/5/2008 GIS Position Updated Updated using Arc GIS SPAR_StatewideLocator (ArcReader) Grant Lidren
3/14/2008 Update or Other Action Received Trans Alaska Pipeline System: 2007 Monitoring Well Decommissioning Report. Four monitoring wells, MW-2 thru MW-5, were successfully located and decommissioned. MW-1, MW-6, and MW-7 were not located. MW-1 and MW-6 lie in a broad, open area and could not be located within a reasonable search time limit. MW-7 which lies near the Dalton Highway in a frequently used pull-out area could not be located using swingties nor metal locator and was assumed to be destroyed during road grading. Keather McLoone
4/10/2008 Update or Other Action ADEC contacted DNR to discuss conditional closure at this site. PERP was also contacted to inquire if there have been of any spills reported at the site since ~ 2002 (last Alyeska site cleanup/characterization activities). Keather McLoone
5/30/2008 Conditional Closure Approved Keather McLoone
5/30/2008 Institutional Control Record Established There is contamination remaining above established cleanup levels at Alyeska Franklin Bluffs Camp but ADEC has determined there is no unacceptable risk to human health or the environment, and this site will be conditionally closed. This decision is subject to the following conditions: 1. A Notice of Environmental Contamination will be recorded on the ADEC database to document that there is residual contamination remaining on site above the most stringent ADEC cleanup levels; 2. Any proposal to transport soil off site requires ADEC approval in accordance with 18 AAC 75.370 (b). Keather McLoone
12/1/2011 Update or Other Action The current project manager chose to retain management of this site with the Cleanup Complete Determination that has Institutional Controls. Kristin Brown
11/10/2013 Update or Other Action Staff changed from Linda Nuechterlein to IC Unit. Kristin Brown
11/19/2013 Institutional Control Compliance Review IC review conducted. The Task Tracker application was updated to document the need for an IC reminder letter to be sent to the RP. Evonne Reese
12/30/2014 Update or Other Action Provided a diagram of the contamination area for this site to the landowner, DNR. They are going to include this are on their mapping information so that they can track where the contamination is located. The DNR contact info has been updated in our Affiliates records. Evonne Reese
12/30/2014 Institutional Control Periodic Reporting Contact with DNR (the landowner) has been made and they are aware of the contamination. We should check back with them in four years time to check on land use. The property currently does not have a lessee. Evonne Reese
9/2/2015 Site Characterization Workplan Approved The Alaska Department of Environmental Conservation (ADEC) Contaminated Sites Program (CSP) has received and reviewed the AEA Icewine #1 Cellar Spoils Characterization Sampling Work Plan and Disposal Evaluation submitted by RSE and dated August 31, 2015. Grant Lidren
3/15/2017 Report or Workplan Review - Other On this date, ADEC received the AEA Icewine #1 Cellar Stockpile Sampling and Characterization Report submitted by RSE and dated October 14, 2015. Soil was excavated for installation of an exploration well cellar. Reportedly, noticeable contamination was encountered at an unknown depth. Three soil samples collected from a 35 cy stockpile contained DRO at 372, 452, and 458 mg/kg. The soil stockpile was used to backfill the excavation after decommissioning of the exploration well. Grant Lidren
5/11/2017 Report or Workplan Review - Other On this date, received the AEA ICEWINE #2 Cellar Spoils Characterization Sampling Work Plan and Disposal dated March 19, 2017 and the Well Cellar & Conductor Casing Installation Report dated March 21, 2017 both submitted by RSE. All material was frozen solid during the well cellar excavation (it was around 0°F during this period). No gross contamination was encountered. A sample collected from cuttings at the pad/tundra interface during drilling for the conductor casing contained the highest PID screening result (295 ppm) and was sampled.Analytical results were: 376 mg/kg DRO; 18.2 mg/kg GRO; 0.008 mg/kg Benzene; 0.0208 mg/kg Toluene; 0.0906 Ethylbenzene;0.433 Xylenes; and 0.5524 Total BTEX. The next highest screening result was 85.4, also found in cuttings from the drilling the conductor casing, immediately below the pad/tundra interface. Following the work plan, all of this material – cuttings and spoils from the same location-- was used as backfill in the annular space between the cellar wall and excavation sidewall after the cellar was installed. Grant Lidren

Contaminant Information

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

Control Type

Type Details
CS Database Notation And Letter To Landowner/RP

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

Missing Location Data

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