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Site Report: Alaska Oil Sales Kenai Bulk Plant


Site Name: Alaska Oil Sales Kenai Bulk Plant
Address: 608 Bridge Access Road, Kenai, AK 99611
File Number: 2320.38.003
Hazard ID: 3763
Status: Cleanup Complete
Staff: ,
Latitude: 60.552778
Longitude: -151.227222
Horizontal Datum:NAD27

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

Petroleum contaminated soil was encountered at 27 of the 41 test holes; 22 of the 27 holes were advanced to groundwater during an assessment done in 2001 by Rozak Engineering. Surface contamination was visible at several pump and header locations. Quantity of contamination is estimated at 800 to 1200 cubic yards, with 30 to 40 percent of the contamination below the water table, with 90 to 95 percent of the soil contamination appears to be connected at groundwater. The primary source of this large plume is from discharges near several pumps and the unloading headers. Several releases also occurred within the impound dike and near the oil-water separator. Smaller isolated areas of contamination were located under the middle of the TTLR, at two pumps , and the former drum storage area. Does business as Petro Marine Services.

Action Information

Action Date Action Description DEC Staff
11/6/2003 Site Ranked Using the AHRM Initial ranking. Alyce Hughey
11/10/2003 Site Added to Database DRO and GRO. Alyce Hughey
11/24/2003 Update or Other Action Reviewed site file and assessment report. Sent letter additional assessment and site cleanup required. Donald Seagren
1/15/2004 Update or Other Action Assigned file number and entered into the Fileroom DB and CS DB. Alyce Hughey
1/27/2004 Update or Other Action Telephone call with Chip Franke, Petro Marine Services to answer questions on site and update contact. Donald Seagren
2/6/2004 Update or Other Action Received site past ownership information. Donald Seagren
2/6/2004 Update or Other Action Letter from Petro Marine regarding cost recovery and questionsing Harbor Enterprises/Petro Marine being listed as RP. Donald Seagren
4/29/2004 Update or Other Action Sent letter requesting site assessment/remediaton plan within 60 days fo the receipt of the letter. Donald Seagren
5/3/2004 Update or Other Action Telephone call from Bob Cox. Petro Marine will be having Rozak Engineering conduct a complete Phase I SA. Still concerned about being the RP. Looking for documentation of Chevron involvement. Donald Seagren
8/11/2004 Preliminary Assessment Approved Reviewed Phase I Environmental Site Assessment Report. Donald Seagren
8/13/2004 Meeting or Teleconference Held Met with Petro Marine and Rozak Engineering. Discussed project status, Site decommissioning & Phase I SA reoprts and how best to proceed. It is not clear when releases occurred. Petro Marine & DEC will send letters to all PRPs to try to bring everyone together to address the contamination. Rozak will develop a work plan to determine GW flow direction for site. Donald Seagren
9/20/2004 Update or Other Action Reviewed Piezometer Installation & GW Survey reoprt. GW flow dierction is southwesterly. PHC odor dectected in PZ- 4. Copy of report sent to Chevron. Donald Seagren
11/3/2004 Update or Other Action Reviewed the file and sent an e-mail to all involved parties requesting a meeting in Soldotna ADEC office, either after or before the holidays to discuss cleanup of the site and have a cleanup plan developed for implementation the summer of 05. Donald Seagren
11/23/2004 Update or Other Action Received and reviewed additonal background information from Chevron on prior ownership, Chevron leases, inspection forms and monitor well installation. Donald Seagren
1/19/2005 Update or Other Action Reviewed groundwater survey #2. The water table in November was approximately 1.3 feet higher than September. Both surveys show the direction of groundwater flow at this portion of the site is southwesterly, toward the Kenai Rive at a gradient of approximately 0.005 to 0.008 ft/ft. the water table drops approximately one foot across the southern portion of the site. Petroleum odor was detected as PZ-4. A meeting to discuss data and how to best proceed with additional assessment, monitoring and remediation will be held on 16 February 05. Donald Seagren
1/19/2005 Update or Other Action Corrected oversight and sent a letter to Marlene Geordge, land owner, informing/inviting her to the meeting with the RPs on 16 February 05. If she is not available, I requested she inform me who her agent is that will be attending the meeting. Donald Seagren
2/16/2005 Meeting or Teleconference Held Held meeting with Petro Marine Services, ChevronTexaco and representative of the landowner. Discussed site history, current data and plans for future. Additional site assessment & GW monitoring will be conducted in 2005 to fully delineate the contamiant plume. Remedial actions may be started in 2005 and go into 2006. Work plan to be submitted in April. Donald Seagren
4/7/2005 Update or Other Action Discussed heating oil tank removal with Chenny McLennan, a DEC certified septic system installer. Discussed current status, need for development of a work plan and having a qualified thrid party consultant on site to conduct assessment and collect samples during tank excavation/removal. Donald Seagren
4/13/2005 Update or Other Action Heating Oil USt to be removed on 18 April 05. Discussed environmental requirements/needs with Pete Campbell - American Environmental. Notified Chevron & Petro Marine about UST removal and plans for assessment. Site inspection will be conducted during UST removal. Donald Seagren
4/18/2005 Update or Other Action Sent letter outlining procedures for UST removal and assessment. Donald Seagren
5/17/2005 Update or Other Action Received a call on 16 May 05 from field crew. No work plan had been received/approved. Sent e-mail to SECOR and Chevron/Texaco. 17 May 05 received work plan via e-mail. Work plan is appropriate to conduct further assessment. Field work to continue. Site inspection will be conducted later today. Donald Seagren
5/17/2005 Update or Other Action Site inspection. Will be on site through Friday. No problems encountered so far. GW very shallow, probably due to high tide. Will adjust well screen and soil sampling intervals accordingly. Will sample at low tide to reduce tidal influence. Discussed removal of piezometers with field crew and Brian Silva (SECOR). They will remove piezometers. these will be replaced with the groundwater monitoring wells being installed. Heating oil UST has not been removed. They will adjust that sampling location to miss the tank. Donald Seagren
6/9/2005 Update or Other Action Discussed partial analytical results with Jocelyn Jackson of SECOR. Approved transport of investigation derived wastes to ASR in Anchorge for thermal remediation. Donald Seagren
7/11/2005 GIS Position Updated Using Figures 1 through 4 from a Phase 1 Environmental Site Assessment Report, from Rozak Engineering in cunjuction with TopoZone Pro, and the KPB Parcel Lookup, entered the coordinates for this site. Metadata Included No Topo Basemap, TopoZone Pro Street Map, Aerial Black and White Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD27. High degree of confidence of accuracy of location. Alyce Hughey
9/22/2005 Site Characterization Report Approved The assessment report verified soil & GW contamination exceeding ADEC cleanup levels. A LTM and Corrective action plans are required. A meeting will be scheduled to discuss the findings further and develop a corrective action plan. Donald Seagren
9/26/2005 Update or Other Action Talked to David Weigner of SECOR about the need for a GW monitoring work plan, corrective action plan and scheduling a meeiting. He stated that Staci from chevron was in the office today and he would discuss this with her. Donald Seagren
10/19/2005 Update or Other Action Quarterly groundwater monitoring work plan reviewed and approved. The data and plan will be reviewed after 4 quarterly monitoring events. Any required changes will be made at that time. Donald Seagren
12/5/2005 Update or Other Action Reviewed the analytical results of composite sample of purge water from the monitoring event in November 05. Sample results exceed ADEC cleanup levels for GRO, DRO, RRO and benzene. The purge water cannot be disposed of on-site. It must be taken to a waste disposal facility. Donald Seagren
12/14/2005 Update or Other Action Reviewed 4th quarter GW monitoring report. Petroleum contmination has migrated off-site towards the Kenai River. Development of a CAP is required for implementation in 2006. A meeting is recommended after the holidays to finalize the plan so it can be implemented after breakup. Provided cleanup levels for 3 PAHs not currently liste din the regulations. Have not received any work plan or documentation on the removal on the heating oil UST located on site. Donald Seagren
2/8/2006 Meeting or Teleconference Held Meeting with Chevron, SECOR and Petro Marine to discuss site assessment, GW monitoring results and development of CAP. Discussed various remediation technologies, pros & cons, LTM, and the various cleanup levels and implications. Chevron will present a plan by May for implementation in June/July 06. Donald Seagren
6/13/2006 Site Characterization Workplan Approved Reviewed and approved work plan for additional soil & GW delineation. Work to be conducted during July 06. Assessment will provide additional information to be used in the development of a corrective action plan for the facility. Donald Seagren
7/11/2006 Update or Other Action Reviewed the April 06 monitoring report. Results are comparable to previous sampling events. With the exception of MW10, the contaminant plume has not migrated off site. BBL & Oasis were provided a copy of the revised lab data quality checklist for inclusion in the next report. Additional site assessment and MW installation will take place the week of 17 July 06. the additional assessment will better define the contaminant plume and prodive additional infomation for development of a corrective action plan. Donald Seagren
7/21/2006 Update or Other Action reviewed first quareter 06 monitoring report. So significant changes from previous reports. No significant changes in risk to human helath and the environment. Additional assessment work scheduled to take place the week of 31 July 06 Donald Seagren
9/29/2006 Update or Other Action Reviewed letter from attorney for Marlene Geordge (property owner) to Chevron & Petro Marine Services requesting time frame & schedule for cleanup of the sit eto achieve site closure so that the property can be sold. Called attorney to discuss site and inform him of the heating oil UST that Ms. Geordge is responsible for removing. Donald Seagren
10/4/2006 Update or Other Action Reviewed second quarter 06 monitoring report. No significant change from previous sampling events. Dataloggers were set to record every 3 days, which did not provide any usable data. They were re-calibrated to record every 6 hours. The dataloggers are to assist in determining any tidal influence on the site. BBL requested a reduction in PAH sampling. A final decision on this request was deferred until at least 2 quarters of data for all MWs (previous MWs and the new MWs installed during the summer of 06) has been reviewed. Donald Seagren
10/30/2006 Update or Other Action Approved transportation of purge water ffrom monitroing wells to Emerald Alaska for treatment. Soil cutting from site investigations in the fall 07, exceeded only for benzene. the cuttings may be landspread on-site during the summer of 07 or transported to ASR in Anchorage for thermal remediation. Donald Seagren
1/3/2007 Update or Other Action Reviewed the Third Quarter GW monitroing report. the results from the September 06 event are consistent with the resulst from the 4 previous events. The concentrations of GRO, DOR, RRo BTEX and several PAHs continue to exceed the cleanup levels in several wells. The groundwater elevation, flow direction and gradient were consitent with previous monitoring events. No MTBE has been found in any of the samples analyzed for this. Teh influence of tidal fluctuations on the Gw on site is still not clear. The pressure transducers/dataloggers have been reprogramed to provide better data for understanding tidal influence on Gw and contaminant migration at the site. The monitoring information will compiled in the spring 07 to develop a corrective action plan for the site. Donald Seagren
3/7/2007 Exposure Tracking Model Ranking Donald Seagren
3/7/2007 Update or Other Action Discussed development of CAP with Rebecca Andresen. After reviewing file and SPI ops plan, sent an email with items to include in CAP for transport of contamianted soil to the former Chevron Refinery for thermal treatment. Treated soil will be returned to the site to backfill the excavation. Donald Seagren
5/4/2007 Cleanup Plan Approved Reviewed and approved Corrective Action Plan, Work Plan, and first Quarter 2007 Groundwater Monitoring Report dated 2 may 07. Included in the approval was post excavation modifications to the existing groundwater monitroing program Donald Seagren
6/7/2007 Update or Other Action Chevron will be using clean gravel from a Davis Block company pit as backfill in the excavation. The thermally treated soil from the former Unocal Bulk Facility 0745 will remain at the former Chevron Refinery. Donald Seagren
9/7/2007 Update or Other Action Telephone call from Rebecca Andresen. MW3 & MW6 have been destroyed. After reviewing site data and direction of flow of GW it was decided that for the present time to properly abandon the MWs. Data from downgradient MWs will be reviewed in the future and a decision made as to whether or not to reinstall them. These 2 MWs are in the middle of the lot and likely to be hit again if reinstalled. Donald Seagren
9/12/2007 Site Characterization Workplan Approved reviewed and approved Work Plan for Additional Delineation of Soil Donald Seagren
2/7/2008 Site Characterization Report Approved Reviewed Corrective Action Completion Report & 3rd Quarter GW Monitoring Report dated 28 january 08. with the exception of DRO concentrations around boring SW-04 all contamianted soil exceeding ADEC cleanup standards has been removed from the site and thermally remediated. Further excavation of SW-04 is restricted by fencing and roads. confirmation sampling conducted around SW-04 indicates that the remaining contamination appears to be limited to the area of the boring. Depth to Gw ranged from 2.81' to 5.97'bgs. The apparent dierction of GW flow is SW towards the Kenai river. the petroleum compounds present at concentrations exceeding ADEC cleanup levels include GROP, DRO, Benzene and severla PAHs. Analytical results for thi smonitoring event are consistent with previous monitoirng events. this is the first samplign event following excavation. With removal of the source ares, it is anticipated tha tthe Gw contaminant levels will drop off druing further events. Due to the difficulties of sampling the MWs during the winter, Chevron is proposing tri-annual rather than quarterly sampling. this will be discussed at a meeting on 6 March 08. Donald Seagren
2/13/2008 Update or Other Action reviewed 4th quarter GW monitoring report. Everything is consistent with previous sampling events. MW5 continues to have exceedances for GRO, DRO & Benzene. All other wells were below clenaup levels. MW12 could not be sampled due to snow & ice. The continued exceedances at MW5 will be discussed when we meet in March. Arcadis was asked to look further into MW5. Since ice & snow prevents sampling all the MWs during the winter, Arcadis has been given approval to switch to tri-annual (3 times a year) sampling. The MW sampling will be conducted during April, August & December. Donald Seagren
3/6/2008 Update or Other Action Met with Chevron and consultant. GW monitoring will continue 3 times a year. Due to ice and snow sampling during the winter is not feasable and provides lillte useful information. The additional GW monitoring data will provide informaiton to develop a closure stragety for the site. Donald Seagren
6/11/2008 Update or Other Action Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. Alyce Hughey
11/24/2008 Update or Other Action Reviewed the First Tri-annual 2008 Groundwater Monitoring Event Report, dated July 9, 2008 from ARCADIS for Paul Horwath and provided him a summary for his review and oversight. Site conditions remain stable, and over the course of sampling events, concentrations are decreasing. The contamination appears to be remaining around the area of the former location of the truck off load slab, the former pump area, and the former containment dike. The monitoring wells down gradient, towards the Kenai River are testing either non-detected or very low levels that are below the groundwater cleanup levels. Continual tri-annual groundwater monitoring should continue in order to make sure that the contamination isn't migrating towards the Kenai River. Alyce Hughey
12/23/2008 Update or Other Action Reviewed the Second Tri-annual 2008 Groundwater Monitoring Report, dated November 10, 2008, from ARCADIS. This report had two monitoring events, one done in June by Oasis, and the other done in August by ARCADIS. Site conditions remain stable, and over the course of sampling events, concentrations are decreasing. Only MW-5 has concentrations in GRO, DRO, and Benzene above the groundwater cleanup levels. MW-5 is down-gradient of the former location of the truck off load slab. MW-10, a down gradient well towards the Kenai River, showed levels of PAH’s above the groundwater cleanup levels during the June and August sampling events. Continual tri-annual groundwater monitoring should continue in order to make sure that the contamination isn’t migrating towards the Kenai River. Alyce Hughey
1/20/2009 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74738 ASTs. Alyce Hughey
3/24/2009 Report or Workplan Review - Other Reviewed the Third Tri-annual 2008 Groundwater Monitoring Report and Geochemical Parameter Monitoring Results from ARCADIS, dated February 19, 2009 for Paul Horwath and prepared a summary for his review and oversight. Site conditions remain stable, and over the course of sampling events, concentrations are decreasing. Only MW-5 has concentrations in GRO, DRO, and Benzene above the groundwater cleanup levels. Continual tri-annual groundwater monitoring should continue in order to make sure that the contamination isn’t migrating towards the Kenai River. The findings of the geochemical parameter monitoring showed that anaerobic biodegradation of the petroleum hydrocarbon related impact at the site may be occurring. Alyce Hughey
7/30/2009 Report or Workplan Review - Other Reviewed the First Tri-annual 2009 Groundwater Monitoring Report and Geochemical Parameter Monitoring Results report, dated June 30, 2009, from ARCADIS for Paul Horwath. Site conditions remain stable, and over the course of sampling events, concentrations are decreasing. Only MW-5 has concentrations of GRO, DRO, RRO and Benzene above the groundwater cleanup levels. Continual groundwater monitoring should continue in order to further evaluate the groundwater concentrations, and to make sure that the contamination isn’t migrating towards the Kenai River. The findings of the geochemical parameter monitoring showed that anaerobic microbial degradation of the petroleum hydrocarbon related impact at the site is likely occurring via iron-reduction, nitrate-reduction, and methanogenic microbial processes. Alyce Hughey
7/30/2009 Update or Other Action Letter received informing the department that a change in environmental consultant has occurred. The environmental consultant effective immediately will be Conestoga-Rovers & Associates. Alyce Hughey
2/4/2010 Report or Workplan Review - Other Reviewed the Second Semiannual 2009 Groundwater Monitoring Report, dated December 30, 2009, from Conestoga-Rovers & Associates for Paul Horwath. Site conditions remain stable, and over the course of sampling events, the concentrations are decreasing. MW-5 has concentrations of GRO, DRO and Benzene above the groundwater cleanup levels. PAH’s were detected in monitoring wells MW-10 and MW-12 above the groundwater cleanup levels. Continual groundwater monitoring should continue in order to further evaluate the groundwater concentrations, and to make sure that the contamination isn’t migrating towards the Kenai River. Alyce Hughey
2/4/2010 Report or Workplan Review - Other Reviewed the Second Semiannual 2009 Groundwater Monitoring Report, dated December 30, 2009, from Conestoga-Rovers & Associates for Paul Horwath. Site conditions remain stable, and over the course of sampling events, the concentrations are decreasing. MW-5 has concentrations of GRO, DRO and Benzene above the groundwater cleanup levels. PAH’s were detected in monitoring wells MW-10 and MW-12 above the groundwater cleanup levels. Continual groundwater monitoring should continue in order to further evaluate the groundwater concentrations, and to make sure that the contamination isn’t migrating towards the Kenai River. Alyce Hughey
6/23/2010 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74738 ASTs. Alyce Hughey
8/3/2010 Site Visit Site visit to look for GW monitoring wells and look at soil stockpiled on property. Paul Horwath
10/6/2010 Report or Workplan Review - Other Reviewed and approved the Amended Confirmation Soil Boring Workplan, dated October 6, 2010, from Conestoga-Rovers & Associates. Paul Horwath
10/13/2010 Report or Workplan Review - Other Reviewed the Annual 2010 Groundwater Monitoring Report, Former Alask Oil Sales Kenai Bulk Plant, dated September 10, 2010, from Conestoga-Rovers & Associates for Paul Horwath. During the June 2, 2010 sampling event three of the existing seven monitoring wells MW-5, MW-10 and MW-12 were sampled. MW-5 showed a decrease in concentrations; MW-12 concentrations remained relatively the same, where MW-10 had an increase in DRO at 3.2 mg/L and RRO at 12 mg/L. PAH’s were detected in monitoring wells MW-10 and MW-12 above the groundwater cleanup levels. Alyce Hughey
1/11/2011 Report or Workplan Review - Other Reviewed the Supplemental Site Assessment Report and Cleanup Complete with Institutional Controls Report, dated December 3, 2010, from Conestoga-Rovers & Associates. During the September 7, 2010 supplemental soil sampling, three soil borings were advanced near monitoring well MW-11, near pipeline sample SB-21, and near the excavation sample SW-04. Soil boring sample HA10-1 was taken at 4 feet below ground surface (near MW-11), soil boring samples HA10-2 was taken at 4 and 6.5 feet below ground surface (near pipeline sample SB-21), and soil boring sample HA10-3 was taken at 2.5 feet below ground surface (near excavation sample SW-04). The samples taken from HA10-1 and HA10-3 didn’t detect any of the analytes above the soil cleanup levels. The samples taken from HA10-2 at 4 feet below ground surface (near pipeling sample SB-21)detected DRO at 2,700 mg/kg and Benzene a 0.04 mg/kg and at 6.5 feet below ground surface Benzene was detected at 0.1 mg/kg. The September 7, 2010 supplemental groundwater sampling was taken from MW-10 and MW-11, with analytical results indicating only PAH’s above the groundwater cleanup levels. Alyce Hughey
3/1/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74738 ASTs. Paul Horwath
6/7/2011 Report or Workplan Review - Other Approved for the monitoring well decommissioning portion of CRA's "Exposure Pathway Mitigation and Well Decommissioning Workplan with Cleanup Complete Request", dated May 31, 2011, with the condition that a written report will be submitted to ADEC after the completion of the decommissioning work, and the installation of the water and sewer service lines to the City of Kenai public systems. Paul Horwath
6/9/2011 Site Visit Completed a site inspection to observe the decommissioning of the groundwater monitoring wells, being overseen by CRA consultants, and being performed by Discovery Drilling. Paul Horwath
10/19/2011 Report or Workplan Review - Other Reviewed the Closure Activities Complete Notification, dated October 7, 2011, from Conestoga-Rovers and Associates. The seven remaining monitoring wells, MW-5 and MW-7 through MW-12 were decommissioned on June 9, 2011 by Discovery Drilling in accordance with the ADEC Monitoring Well Guidance. The onsite potable water well was decommissioned on September 15, 2011 by Discovery Drilling in accordance with the approved variance workplan from ADEC Drinking Water Program on September 2, 2011. The City of Kenai municipal water main was connected to the site building by River City Construction of Soldotna on September 21, 2011. The former building water line was disconnected from the potable well and connected to the City of Kenai's water main. The six-inch water main connection was reduced to a one-inch connection to accommodate the building's existing one-inch copper water service line. Alyce Hughey
10/26/2011 Cleanup Complete Determination Issued Cleanup Complete Determination letter issued. The latest soil and groundwater sampling was conducted in June of 2010. Groundwater contamination was detected at the following concentrations: DRO at 3.5 mg/L, GRO at 4.3 mg/L, and benzene at 0.085 mg/L. Soil contamination was detected at the following concentrations: DRO at 2,700 mg/kg, and benzene at 0.04 and 0.1 mg/kg at depths of 4 to 6.5 ft bgs. Paul Horwath
11/9/2011 Institutional Control Record Removed Institutional Controls have been removed. Paul Horwath
11/9/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74738 ASTs. Alyce Hughey
3/29/2017 Update or Other Action Public records request. Save records as publicly viewable attachments to this database record. Paul Horwath

Contaminant Information

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

Control Type

Type Details
No ICs Required

Requirements

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

Missing Location Data

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