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Site Report: Coastal Drilling

Site Name: Coastal Drilling
Address: Mile 0.5 Kenai Spur Hwy., Soldotna, AK 99669
File Number: 2333.38.013
Hazard ID: 464
Status: Cleanup Complete - Institutional Controls
Staff: Peter Campbell, 9072623412 peter.campbell@alaska.gov
Latitude: 60.492872
Longitude: -151.063643
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

Pit on-site (100 foot x 50 foot x 25 foot deep) used since 1957 and suspected to contain old engines, oil drilling rig parts, vehicles, construction wastes, and drilling mud in unknown amounts. Known contamination of soil by polychlorinated biphenyls (PCBs). Soil and groundwater contamination by benzene, toluene, ethylbenzene, and xylenes (BTEX), lead, and chlorinated solvents. Drinking wells potentially threatened. Extent of contamination unknown. PCBs up to 2,900 parts per billion (ppb) found in soil in 10,000 square foot area, August 1989. Donald L. Jack and Jerry Andrews of Alaska Homestead own the property. Peninsula Savings and Loan began to repossess property when Fed. S&L Insurance Co. of Seattle became receivers of PS&L. Tract 4B, Hayward Hills Subdivision, Tract 4, Plat #85132.

Action Information

Action Date Action Description DEC Staff
8/1/1987 Preliminary Assessment Approved Preliminary Assessment Report, August 1987 by Tryck, Nyman and Hayes. Report indicates waste oil and drilling muds disposed. Bryson Twidwell
9/19/1988 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Initiated site investigation by ENSR during week of September 19, 1988. FSLIC funded. Bryson Twidwell
11/1/1988 Update or Other Action (Old R:Base Action Code = SI - Site Investigation). Phase II Property Transfer Assessment ENSR Consulting and Engineering found visible oil sheen on shallow groundwater and PCBs at 33 mg/kg at 5 foot depth. Contracted by Federal Savings & Loan Insurance Corp. of Seattle. Bryson Twidwell
2/14/1989 Update or Other Action (Old R:Base Action Code = SI - Site Investigation). Final report due in March of 1990. Bryson Twidwell
8/25/1989 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Received QA/QC Plan, Coastal Drilling Site Investigation, Soldotna, Alaska, August 25, 1989 by Harding Lawson Associates. Bryson Twidwell
1/9/1990 Update or Other Action (Old R:Base Action Code = SI - Site Investigation). Site Investigation Coastal Drilling Salvage Site, Soldotna, Alaska, Draft Report of January 9, 1990 by Harding Lawson Associates. Results indicate up to 179,800 ppb of BTEX in soil; TPH up to 260,000 ppm in soil; PCBs up to 2,900 ppb in soil; 4,660 ppm for lead; TCE up to 880 ppb in soil; PCE up to 660 ppb in soil; perched water table contaminated by chlorinated solvents and BTEX and metals above MCL levels in about 10,000 square feet surface area. Bryson Twidwell
2/28/1990 Interim Removal Action Approved (Old R:Base Action Code = REM - Removal / Excavation). Drums removed as part of the FY90 contract for SI performed by Harding and Lawson. Bryson Twidwell
4/23/1990 Site Ranked Using the AHRM Initial ranking. Bryson Twidwell
6/5/1990 Site Number Identifier Changed Old Reckey 19882X1018303. Changed to reflect correct workplan. Also, Kenai Special Project code eliminated. Former Staff
5/31/1991 Notice of Violation Letter sent to inform respondents (Kenai Corp. formerly Kenai Drilling Ltd. Inc., Montgomery Drilling Co. Inc., and Donald L. Jack of Financial Services Inc.) stating that to date, no party has accepted responsibility for interim corrective action, site assessment, or remedial action at the site. Water has accumulated on the surface of the property, which water has tested positive for elevated levels of Total Petroleum Hydrocarbons (TPH), benzene, polychlorinated biphenols (PCBs), lead cadmium, chromium, vinyl chloride, 1,2 dichloromethane (DCA), and trichloroethylene (TCE). Bryson Twidwell
1/1/1992 Site Added to Database PCB, BTEX, lead and chlorinated solvents contamination. Bryson Twidwell
10/1/1992 Site Characterization Report Approved (Old R:Base Action Code = SA1R - Phase I SA Review (CS/LUST)). ADEC's contractor for the site assessment was Shannon and Wilson. Shannon and Wilson conducted borings, installed several monitor wells, sampled all of the old and new monitor wells, took soil samples of all the borings, took water and sediment samples from the open pit. Shannon and Wilson found several new areas of contamination from reviewing aerial photographs and doing soil borings in suspicious areas. A fence was placed around the contaminated areas in December 1991. Shannon and Wilson's greatest concerns are the following conclusion from their data: "The covered pit at the site has been used to dispose of miscellaneous debris as well as a drain field for wastes that are discharged into a metal grate located between Hydro test and the concrete slab. The metal grate is connected to the covered pit by a 6 inch steel pipe. Elevated concentrations of petroleum hydrocarbons, chlorinated solvents and hazardous substances at the site were found in the sump box below this grate and in the soils surrounding this grate. The highest levels of contaminants, however, were encountered at the discharge end of the effluent pipe covered pit. Several new areas of oil stained soils as well as where tanks and drums were stored in the past was visible in the aerial photographs acquired during this assessment. the unconfined groundwater table, with static levels at about 35 feet below the surface is in our opinion apparently being recharged by surface water collecting above and infiltrating downward through the covered and open disposal pits. The soils are relatively permeable beneath the disposal pits and provide little resistance to the downward migration of fluids. The continuous boring showed highly permeable soils adjacent to the pit. The bottom of the pit may be lined with emulsified petroleum or fine grained drilling muds. However, we feel that this artificial lining of the bottom of the pits will only cause infiltrating water to migrate laterally until in contact with more permeable soils and then continue on its downward decent." Bryson Twidwell
11/30/1992 Site Ranked Using the AHRM Reranked. Former Staff
6/9/1993 Site Ranked Using the AHRM Site re-ranked. SW Exposure Index Value changed to 0 and SW Environments changed to 3. Former Staff
6/25/1993 Update or Other Action (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Harding Lawson, and Associates was hired by ADEC to investigate the feasibility of five different treatment options for the Coastal Drilling site. Bryson Twidwell
6/30/1993 Update or Other Action (Old R:Base Action Code = SLSW - State Lead Scope of Work). Bryson Twidwell
10/15/1993 Cleanup Plan Approved (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Harding Lawson and Associates were hired by the ADEC to investigate the feasibility of five different treatment options for the Coastal Drilling site. The department reviewed and approved the proposed options submitted by HLA on October 14, 1993. HLA will continue to work on developing these options and sampling plan which will be submitted in December or January. Bryson Twidwell
1/25/1994 Update or Other Action (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Reviewed the remediation options that were researched and submitted by Harding Lawson Bryson Twidwell
3/24/1994 Update or Other Action (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Reviewed Harding and Lawson report on the feasibility and cost estimate for five different remediation options. Bryson Twidwell
5/13/1994 Update or Other Action (Old R:Base Action Code = SLSW - State Lead Scope of Work). Final scope of work submitted. Bryson Twidwell
5/20/1994 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Remedial action plan to excavate contaminated soils, treat via the bolsing process of solidification, and bury on-site. Comments and concerns provided via letter. Bryson Twidwell
10/17/1996 Update or Other Action Review files and develop briefing paper to discuss remediation options and possible costs/benefits. Donald Seagren
9/30/1997 Interim Removal Action Approved Completed a 470 response fund request and forwarded it for comments and funding source breakdown. Donald Seagren
10/28/1997 Update or Other Action Revised and submitted 470 funding request. Also submitted a Capital Budget funding request for 3 year GW monitoring at the site. Donald Seagren
11/6/1998 Long Term Monitoring Established Reviewed and approved a 3 year groundwater monitoring plan. Donald Seagren
11/20/2000 Update or Other Action Coordinated replacement of stolen fencing around disposal pits with Mark Kulstad, representative of owner. Donald Seagren
12/28/2000 Update or Other Action Reviewed draft monitoring report. No comments. Told HC to finalize with letter, conduct repairs to secure MWs if budget allows and include 3 year summary section in final monitoring report, Spring 2001. Donald Seagren
8/2/2001 Long Term Monitoring Complete The 3 year GW monitoring program has been completed with the submission of the Spring 2001 sampling report. A project summary report will be submitted in the near future. Donald Seagren
8/2/2001 Update or Other Action Spring 2001 monitoring report reviewed and approved. Hart Crowser given approval to finalize. Analytical results show that the contamination remaining in the area of the disposal pits and elsewhere on the property is not migrating off- site at this time. A decision will need to be made on what to do with the remaining contaminated soils and who will pay for any remediation. Donald Seagren
1/2/2002 Update or Other Action Reviewed demand letter and supporting documentation that LandMark sent to various oil companies involved with Coastal Drilling. Donald Seagren
2/11/2002 Update or Other Action Met with Chick Underwood of Marathon to discuss site, answer questions and familiarize him with files and site history. Donald Seagren
6/11/2002 Update or Other Action Reviewed Comprehensive Report for GW monitoring Investigation, dated June 02. No comments, additions, corrections. Approved draft report as final without re-printing. Donald Seagren
11/25/2002 Update or Other Action Telephone call with Mark Kulstad. Has heard from Unocal and Marathon. Re-contacting Texaco/Shell, Phillips, Conoco. Unocal has agreed to meeting to discuss issues. He thinks Marathon will also. Will keep me informed of any progress. Also discussed presentation to Kenai Watershed Forum. Donald Seagren
1/10/2003 Update or Other Action Telephone call with Gretchen Stoddard, Conoco/Phillips contractor Re: RP letter from Mark Kulstad and Susan Reeves. Donald Seagren
2/13/2004 Update or Other Action File number assigned and entered into the Fileroom DB and CS DB. Alyce Hughey
4/27/2004 Update or Other Action Received total cost recovery billing of $395,968.79. Provided to AG to be sent with demand letters to PRPs. Donald Seagren
5/10/2004 Update or Other Action Reviewed draft demand letter from AG office. Provided comments and additional information on potential responsible parties. Donald Seagren
4/15/2005 Update or Other Action Sent letter to all PRPs requesting a meeting on 4 May 05 to discuss site, responsibilities and try to get cleanup moving. Donald Seagren
6/29/2005 Meeting or Teleconference Held Attended the 2nd PRP meeting. New attendees were Shell and Exxon/Mobil. Possible connection between Kenai Drilling and the former Coastal Drilling is being researched. Possible insurance policies are also being pursued as a way of obtaining funds for the site cleanup. Additional assessment data and reports will be sent to the companies so they can further evaluate the site conditions and cleanup options. The next meeting is scheduled for 9 August 05. Donald Seagren
8/10/2005 GIS Position Updated Corrected site location based on information in legal description. Compared this information with the Kenai Borough's plat maps. Plotted location using tax parcels maps in GIS. Updated metadata fields to account for these changes. Torsten Ernst
8/16/2005 GIS Position Updated Using Figure 1 from a Coastal Drilling Risk Assessment, Dated November 29, 1991, and Aerial Photos from an Environmental Site Investigation Coastal Drilling Facility, dated August 1992, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes No Topo Basemap, TopoZone Pro Street Map, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD83. High degree of confidence in accuracy of location. Alyce Hughey
9/13/2005 Update or Other Action Telephone call with attorney from Chevron regarding their response for information. Received 39 emails with the informaiton attached. Began review of the information. Donald Seagren
9/15/2005 Update or Other Action Reviewed Chevron's information sent in response to a letter from ADOL & ADEC requesting inromaiton related to Coastal Drilling. Donald Seagren
1/10/2006 Update or Other Action reviewed and approved the HC proposal or a GW sampling event in the Spring of 06. Donald Seagren
3/10/2006 Site Characterization Workplan Approved Reviewee and approved the Draft Work Plan Groundwater Monitoring Coastal drilling Facility Soldotna, alaska dated February 06. The work plan was prepared by Hart Crowner for ADEC. Coordinated with the AGs office and attorney for the landowner to ensure the signed access agreement is in place by the tentative sampling date of 15 May 06 Donald Seagren
6/23/2006 Update or Other Action reviewed and provided comments onthe draft Groundwater Sampling report dated 23 June 06. One table needed a title correction. the remainder of the report was approved. B-2MW showed levels of chromium and lead above ADEC clenauplevels.This is the first occurrance of metals at this well at levels aboe ADEC cleanup levels. Further testing will show if this is an anomoly or a trend. Donald Seagren
7/12/2006 Update or Other Action Reviewed final report. Actions to be taken for inclusion in next monitoring event: 1- replace lock on fenced area gate; 2 - examine all MWs and repair &/or replace those that are damaged and unuseable; 3- re-survey all MWs; 4 - reassess monitroing network and determine if additonal MWs may be required or if existing wells need to be replaced. Donald Seagren
4/6/2007 Exposure Tracking Model Ranking Donald Seagren
4/3/2008 Update or Other Action A 2 phase monitoring program was developed and 2 RFPs sent to anchorage for processing. the work will be done after breakup in 08. the first phase will survey the monitor wells to ensure they are all suitable and secure. the first phase will also replace locks for which we no longer have keys. the second phase will be based on the results of the survey. Unsuitable/broken monitor wells will be repaired &/or abandoned; as necessary, selected abandoned MWs will be replaced; the wells will be surveyed in to provide updated Gw flow directions and all MWs will be sampled to determine current contaminant plume status. Donald Seagren
6/11/2008 Update or Other Action Site transferred from Don Seagren to Paul Horwath, per Linda Nuechterlein. Alyce Hughey
11/20/2009 Document, Report, or Work plan Review - other Reviewed and approved the Focused Site Investigation Work Plan, dated November 13, 2009, from ALTA Geosciences, Inc. The proposed work will reflect the current site conditions and the concentration of the contaminants present at the site. Two test pits will be excavated within the Covered Pit Area, and two samples will be analyzed from each of the test pits. Four test pits will be excavated within the Open Pit Area, and one sample will be analyzed from each of the test pits. Also proposed are two test pits to be excavated within the Outside Grate Area, and four samples will be taken from the two test pits. The areas of the Machine Shop and the Drill Shop Sump will not be evaluated within this Work Plan due to the small volume of potentially impacted soils, which are unlikely to affect the feasibility of the capping option that is being proposed. Paul Horwath
11/2/2010 Document, Report, or Work plan Review - other Reviewed the Focused Site Investigation Report, Former Coastal Drilling Site, from ALTA Geosciences, Inc., dated September 2010. The investigation efforts of the open pit indicated that the pit consists of mostly uncontaminated solid waste other than in the northeast side of the pit where several vehicle batteries and battery parts were found, and hydrocarbon-saturated soils at a depth of 10 feet with 9,650 mg/kg DRO and 323 mg/kg GRO. The total volume of the open pit is estimated at 550 cubic yards. The investigation efforts of the covered pit indicated that the area near where the drain pipe from the grate area had discharged, an elevated DRO concentration was detected at 1,240 mg/kg. The measurement results of the density of the cover material over the covered pit indicated that the soils consist of silty sand with gravel with a maximum density at 130 pounds/cubic feet, and a relative compaction of 92.8%. The investigation efforts of the shallow soils in the grate area indicated that PCBs were detected at low levels that were below the ADEC soil cleanup levels. Alyce Hughey
1/13/2012 Update or Other Action Project Manager changed from Paul Horwath to Peter Campbell per Paul Horwath. Alyce Hughey
4/3/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 71443 waste disposal pits & spills. Peter Campbell
4/13/2012 Update or Other Action Hexavalent chromium analysis was conducted in the Focused Site Investigation Report and we have determined that chromium +3 is the valence of the chromium present at this site, which does not exceed any ADEC site cleanup levels. Chromium is no longer considered a contaminant of concern. It appears that groundwater has not been impacted at the site. ADEC has requested a cleanup work plan or closure plan detailing additional proposed site work from the RP. Peter Campbell
5/18/2012 Meeting or Teleconference Held Meeting with Peter Campbell, Paul Horwath, Alex Tula with ALTA GeoSciences, and Larry Bamberger at the Soldotna ADEC office to discuss the current status of the site, and what cleanup actions needed for site closure. Alyce Hughey
4/25/2014 Update or Other Action Received "Site Cleanup Plan Former Coastal Drilling Site" Peter Campbell
5/6/2014 Meeting or Teleconference Held Met with consultant to discuss proposed Site Cleanup Plan. ADEC requested modifications to proposed work with the intent to move forward with site cleanup and closure. Peter Campbell
6/26/2014 Document, Report, or Work plan Review - other Work plan approval issued for the open pit and sump area. Solid waste debris and lead batteries will be removed and disposed and/or recycled. Soil sampling will be conducted for confirmation sampling. Additional excavation work is to be conducted at the former sump area. the closed pit is not going to be addressed this year. The property owner has agreed to have an engineer design an environmental cap to cover the area of impacted soil for the 2015 field season. Peter Campbell
7/10/2014 Site Visit Contractor has been working on site, excavating from the open pit, removing debris to the Soldotna Landfill. Several drums of soil/lead impacted soil removed from the site for hazardous waste disposal. The open pit will be filled. Monitor Well GW-3 was destroyed by an excavator. This well will need to be assessed and be repaired or abandoned. Peter Campbell
7/10/2015 Meeting or Teleconference Held Meeting with Don Jack to discuss site status. We were informed that there may be PCB's on site in a fifty cubic yard stockpile of excavated soils. We requested a report documenting the sampling efforts. Peter Campbell
8/17/2016 Document, Report, or Work plan Review - other Reviewed the Soil Remediation Construction Completion Report (June 2016) that documents cleanup actions at the open pit and the log crib sump. Six batteries, 1,800 pounds of broken batteries and battery plates and 1,200 pounds of lead impacted soils were removed from the site and either recycled or sent to a RCRA landfill. A total of 80.56 tons soil containing less than 50 ppm PCB’s were sent to a permitted landfill. An additional 26.1 tons of soil containing more than 50 ppm PCB’s were sent to a TSCA permitted landfill. The owner has submitted engineered plans to construct a lined cap over what is known as the covered pit and is working towards site closure with institutional controls. Peter Campbell
9/27/2016 Update or Other Action Refine Lat/Long location based on the location of the covered pit using the ADEC CSP Internal GIS Map. Paul Horwath
10/4/2016 Document, Report, or Work plan Review - other Issue conditional approval of engineering plans to construct a protective cap/cover over the residual contamination remaining in the subsurface covered disposal pit located at this site. Paul Horwath
6/29/2017 Site Visit Conducted a site inspection while the lined cap was being installed over the covered pit. The project engineer was on site observing. Soils that were capping the pit (approximately 1500 cy)had been excavated and stockpile on site. ADEC has issued a requirement that these soils be sampled to determine if they are suitable for onsite disposal. Peter Campbell
8/21/2017 Document, Report, or Work plan Review - other Reviewed a multi-incremental sampling work plan for approximately 500 cy of soil removed from the covered pit. The Soils were stockpiled approximately 100 feet north east of the covered pit. Oily rags and stained soils and metallic debris were observed in the excavated soils. ADEC will require additional testing from BTEX, GRO, DRO, PCB's and chlorinated solvents. In addition, we will require a method of collecting samples that is representative of the entirety of the stockpile. Peter Campbell
10/3/2017 Update or Other Action The consultant had determined that MIS sampling requirements may be too cumbersome and is revising the excavated soil stockpile sampling work plan to use discrete sample methods. Peter Campbell
10/26/2017 Document, Report, or Work plan Review - other Reviewed a soil sampling work plan for soils stockpiled at the site. Requested additional information from consultant. Peter Campbell
10/26/2017 Update or Other Action Asphalt cap installed over the western closed cell. The asphalt cap covers and protects a engineered liner that was installed during the summer of 2017. This completes the institutional controls for the covered pit area. Peter Campbell
10/26/2017 Document, Report, or Work plan Review - other Reviewed and commented on a soil stockpile work plan. Request additional information from consultant. Peter Campbell
11/6/2017 Update or Other Action The owner requested permission to wait until next summer to sample soils stockpiled on the north east corner of the property, with the understanding that the stockpile would need to be knocked down to a uniform thickness so that the sampler could gain access to the entirety of the stockpile. Peter Campbell
7/18/2018 Document, Report, or Work plan Review - other Approve a Stockpile Sampling Work Plan (7/16/18) for soils removed from the covered pit and stockpiled on the north east portion of the property. The consultant will use incremental sampling to characterize approximately 544 cubic yards of soil. Peter Campbell
11/14/2018 Document, Report, or Work plan Review - other Review and approve the Soil Stockpile Sampling and Analysis Report (September 2018). Peter Campbell
8/8/2019 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 71443 waste disposal pits & spills. Peter Campbell
8/18/2020 Update or Other Action Homer Electric Association general easement across Lot 4-A2 vacated. Peter Campbell
8/24/2020 Update or Other Action HEA released general utility easement across parcel with engineered cap. Peter Campbell
8/12/2021 Update or Other Action Draft environmental covenant received. Peter Campbell
8/11/2023 Update or Other Action Environmental Covenant signed. Peter Campbell
8/18/2023 Cleanup Complete Determination Issued Cleanup Complete Determination – Institutional Controls with Environmental Covenant. Documents filed in Kenai Recording District. Property is in the process of being sold to new owners. Peter Campbell
8/18/2023 Institutional Control Record Established Institutional Controls established and entered into the database. Peter Campbell

Contaminant Information

Name Level Description Media Comments
2-Methylnaphthalene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
BTEX > Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
Lead - Total > Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
Naphthalene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
PCBs - Total > Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
RRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
Tetrachloroethene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Area of impact covered by an engineered cover.
Trichloroethene < Method 2 Most Stringent Soil Area of impact covered by an engineered cover.

Control Type

Type Details

Requirements

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

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
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