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Site Report: Kustatan River No. 1 Drill Site

Site Name: Kustatan River No. 1 Drill Site
Address: Kustatan, West Foreland, ~6 Miles Up Kustatan Riv., Nikiski, AK 99635
File Number: 2323.38.016
Hazard ID: 3760
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 60.808333
Longitude: -151.916389
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 investigation of an inactive reserve pit and drill site reported DRO in two borings on the north end of the drill site with concentrations ranging from 3,300 to 8,500 mg/kg from 0 to 24 inches depth. The site is within the Redoubt Bay Critical Habitat Area. Site is 4,226.1 feet south and 1,923.86 feet west from the northeast corner, Section 4, T8N, R15 W, Seward Meridian. It is situated in the floodplain of the lower Kustatan River in a wetlands area near a slough that drains into the Kustatan River. The gravel pad is approximately 200 by 350 feet and DRO contaminated soil is currently estimated at roughly 100 by 100 feet on the north end of the gravel pad (based on limited characterization data). Shallow groundwater is present under the pad at a depth of approximately three feet. Latitude and longitude are approximate.

Action Information

Action Date Action Description DEC Staff
8/3/2000 Update or Other Action Site visit with Jim Sewell of Shell Exploration, Deborah Heebner of ADNR, Herman Griese of ADF&G, Gar Carothers, and Robb Crotty of CH2MHILL, Jay McKendrick of Lazy Mountain Research and Bo Douglas. Scott Pexton
1/31/2001 Update or Other Action Received Draft Investigation Report for Kustatan River Number 1 Inactive Reserve Pit and Drill Site, prepared by CH2MHILL. Scott Pexton
2/6/2001 Update or Other Action Letter sent from Judd Peterson of the ADEC Solid Waste Program to Jim Sewell of Shell Exploration regarding the draft Investigation report and indicating transfer of oversight of assessment and cleanup of diesel contamination to the Contaminated Sites Remediation Program. Scott Pexton
2/14/2001 Meeting or Teleconference Held Attended meeting at CH2MHILL offices in Anchorage with Colleen Burgh of CH2MHILL, Jim Sewell of Shell Exploration (via teleconference), Joe Meehan and John Westlund of ADF&G, and Deborah Heebner of ADNR to discuss the draft report and plans to revegetate the gravel pad later this spring. Scott Pexton
2/26/2001 Site Added to Database DRO contamination. Scott Pexton
2/27/2001 Site Ranked Using the AHRM Site ranked based on information provided in the Draft Investigation Report prepared by CH2MHILL. Scott Pexton
2/27/2001 Update or Other Action Letter sent to Jim Sewell of Shell Exploration with comments on the draft Investigation report. Letter also included Cost recovery Notification informing Shell of the state's intent to recover oversite costs. Scott Pexton
5/7/2001 Update or Other Action Received final Investigation Report for Kustatan River Number 1 Inactive Reserve Pit and Drill Site, prepared for Shell Exploration and Production Company by CH2MHILL. Also, received a memorandum from CH2MHILL with responses to ADEC comments on the draft report. Scott Pexton
6/15/2001 Site Characterization Workplan Approved Approved site characterization and re-vegetation work plan. Sediment sampling in the fall will be dependent on analytical results from this sampling event. Donald Seagren
8/20/2001 Update or Other Action Conference call with Colleen Burgh and Rob Crotty regarding preliminary sampling results from summer sampling event. Discussed any additional needs for September re-vegetation inspection. Will meet with other agencies this winter to decide course of action for contaminated soils and surface water. Donald Seagren
3/20/2003 Update or Other Action Talked to Rob Crotty, CH2MHill. Have not received report. He will contact Jim Sewell, Shell, to see what happened and get copy of report released to me. Donald Seagren
8/11/2003 Update or Other Action Reviewed 2002 sampling report. Sent letter to Jim Sewell, requesting missing reports from previous approved work plans and background information referenced, but missing from file. Donald Seagren
11/13/2003 Meeting or Teleconference Held Met with Crotty/Acomb to discuss site data, risk based closure/ nfa versus closure, no LTM, no IC with ADNR/ADFG concurrence. Donald Seagren
3/24/2004 Update or Other Action File number assigned and entered into the Fileroom DB and CS DB. Alyce Hughey
9/20/2004 Institutional Control Record Established Redoubt Bay Critical Habitat area regulations will act as IC to prevent development and limit access. Donald Seagren
9/20/2004 Conditional Closure Approved NFRAP decision based on review of data indicating remaining weathered DRO contaminant plume is not migrating. Natural attenuation will address remaining contamination. Donald Seagren
9/8/2005 GIS Position Updated Using Figure 1 from an Investigation Report for Kustatan River No. 1 Inactive Reserve Pit and Drill Site, from CH2MHILL, dated January 2001, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes USGS Topo Maps 1:63K, TopoZone Pro Street Maps, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:25,000, Coordinate Datum NAD83. Moderate to high degree of confidence in accuracy of location. Alyce Hughey
6/12/2008 Update or Other Action Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. Alyce Hughey
11/10/2014 Update or Other Action Staff changed from Paul Horwath to IC Unit. Kristin Thompson
9/4/2015 Institutional Control Compliance Review IC compliance review conducted. The area of remaining contamination is in a critical habitat area. Schedule to send a letter reminding the parties involved of this. Evonne Reese
2/19/2016 Institutional Control Update Verified with DNR Oil & Gas that Shell Oil remains the lease holder. Schedule to send an IC reminder letter. Evonne Reese
2/25/2016 Institutional Control Update An IC reminder letter was issued to the responsible party (Shell Oil), and a copy sent to the other involved parties (ADNR and ADF&G). Kristin Thompson
3/30/2017 Institutional Control Compliance Review IC compliance review conducted. Closure/IC Details updated. Kristin Thompson
5/7/2019 Institutional Control Update An Institutional Controls reminder letter mailed to the responsible party on this date. Mossy Mead
6/4/2024 Institutional Control Compliance Review IC compliance review completed on this date. An IC reminder letter was issued to the landowner. The next review will be in three years’ time. Gaige Robinson

Contaminant Information

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

Control Type

Type Details
Land Use Plan / Maps / Base Master Plan critical habitat area regulations reatrict access and land use

Requirements

Description Details
Other The pad is in the Redoubt Bay Critical Habitat Area. The regulations governing the Critical Habitat Area prohibit development and limits access to the site.
Groundwater Use Restrictions The groundwater in the pad area will not be used as a drinking water source.
New Construction Restrictions Should any work be done at the site in the future, Shell will be responsible for properly addressing all soil contamination exceeding the applicable cleanup standards.
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.
Periodic Review Every three years.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby