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Site Report: Petersburg AFS Tank Farm

Site Name: Petersburg AFS Tank Farm
Address: 703 South Nordic Drive, Petersburg, AK 99833
File Number: 1521.38.005
Hazard ID: 1988
Status: Active
Staff: Rebekah Reams, 9074512144 rebekah.reams@alaska.gov
Latitude: 56.807348
Longitude: -132.968507
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

Petro 49, Inc dba Harbor Enterprises Inc. conducted a phase II environmental site assessment. Some of the activities included within that assessment were excavating several test pits, installing short term groundwater monitoring wells and taking soil and groundwater samples. The results of the analytical testing warranted the reopening of this site. Concentrations above most stringent cleanup levels were found for DRO, RRO, VOCs, and PAHs in both soil and groundwater. RCRA metals were found in soil at concentrations above acceptable cleanup levels.

Action Information

Action Date Action Description DEC Staff
5/31/1994 Update or Other Action (Old R:Base Action Code = SA1R - Phase I SA Review (CS/LUST)). RP may construct treatment cell at municipal landfill. Cleanup will not begin until facility upgrade starts. CAP needed. Former Staff
12/30/1994 Site Added to Database Diesel contamination. Former Staff
12/30/1994 Site Ranked Using the AHRM Initial ranking. Former Staff
3/21/1995 Site Characterization Report Approved (Old R:Base Action Code = SI - Site Investigation). GeoEngineers request for ACL based on expanded site investigation work. Background biogenic carbon an issue. Randy Rice
5/3/1995 Update or Other Action Joint sampling with Clare, JEAL, and GeoEngineers to assess background biogenic carbon. Jim Clare
6/14/1995 Cleanup Level(s) Approved Approval of ACL following JEAL analysis of background biogenic carbon. ACL set at 1,000 ppm DRO. Randy Rice
6/16/1995 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Approved workplan and alternate cleanup level - letter dated June 16. Jim Clare
8/27/1996 Cleanup Plan Approved (Old R:Base Action Code = RAPA - Remedial Action Plan Approval). Bill Janes
9/24/1999 Update or Other Action Site has not been actively worked for some time. TOSCO bought facility, sold to Ted Smith, who in turned sold to Petro Marine. TOSCO retained environmental responsibilities. Unocal tried to bioremediate approximately 700 cubic yards of soil starting several years ago. TOSCO sampled summer of 1998. Samples still high. Well points installed around loading rack and across street. GW samples near loading rack had contamination. Another round of sampling summer 1999. No big change in bioremediation cell. Wells were dry. Report from Noll Environmental expected soon. TOSCO will probably haul biocell soils out to facility in Tacoma (TPS). ADEC needs to determine if any further characterization and confirmation sampling is needed before site is closed. Need to look at GW data and compare to the regulations. Bill Janes
11/22/1999 Update or Other Action 11/2/99 Noll Environmental report states all wells were dry on 7/29/99 and no GW samples collected. Five soil samples from the stockpiled soil mound contained DRO ranging from 1,100 to 3,750 ppm. Bill Janes
11/22/1999 Site Ranked Using the AHRM Name changed to TOSCO Petersburg and site score changed from 0.0 to 0.4 for GW exposure. Does not change priority ranking. Bill Janes
11/22/1999 Meeting or Teleconference Held Teleconference with Cramer. TOSCO will remove stockpiled soils in the spring. Expect report by approximately May. Make sure report documents extent of GW contamination. Bill Janes
7/5/2000 Update or Other Action Site visit with Marty Cramer and Mike Noll of Noll Environmental. Tosco planning to decommission bioventing cell and take soils to USR in Juneau. Bill Janes
9/21/2001 Update or Other Action Tosco has merged with ConocoPhillips. Bill Janes
10/1/2001 Update or Other Action Per Marty Cramer it sounds like Petro Marine is planning to close this site out in 2003. Told Marty to discontinue GW monitoring until after closure cleanup commences. GW levels have been consistently below Table C levels. Do not need to check on this site again until January 2003. Bill Janes
3/21/2003 Update or Other Action Telecon with Marty Cramer - Still some issues going on with a series of property tranfers involving the city. I told Marty to continue to put things on hold until the most efficient time to finish the work occurs. Bill Janes
1/11/2006 Update or Other Action Telephone call from Marty Cramer. Project starting up again. Expect workplan in the next few months. Bill Janes
3/1/2006 Update or Other Action Site chracacterization work plan received from SECOR Bill Janes
3/20/2006 Update or Other Action Telecon with Secor. Sample biopile with about 20 - 30 samples and then conduct stats. Characterization sampling around the infrastructure. GW monitoring on hold until results of soil test pitting are in. Revised workplan will be sent in a few days. Bill Janes
3/24/2006 Site Characterization Workplan Approved Bill Janes
7/10/2006 Update or Other Action Addiional Site Investigation Report received. Active biopile treatment still needed. 95% UCL of the sample mean calculated at 1145 mg/kg. Cleanup level was set at 1,000 mg/kg some years ago. Bill Janes
7/27/2006 Update or Other Action Email comments sent to SECOR on proposed biocell treatment plan. Bill Janes
9/15/2006 Update or Other Action Telecon with Mark Sauze and Dan McNair. Scope of work for sampling this weekend: 1. Will dig in former location of former bioventing system to determine if there is a liner. If so, will sample beneath liner. Will take six samples from the footprint for DRO, BTEX, GRO, PAH's (8270). 9060M will also be run for TOC. 2. 20-25 discrete samples will be taken from the treated soil will be sampled for DRO. 20% will be run for PAHs as well. Dan will also run a mulit-increment sampling for DRO and PAHs. 9060M will be run for TOC using a multi-increment approach as well. GRO and BTEX will not be run on the pile based on pre-treatment sampling results from April 2006. Bill Janes
1/16/2007 Update or Other Action Soil treatment and sampling report received. Draft soil excavation and disposal workplan received. Bill Janes
1/16/2007 Update or Other Action Conceptual Site Model received. Bill Janes
1/26/2007 Update or Other Action Site visit and meeting with Connoco Phillips(Mike Noll), consultant (Marc Sauze), and Petro Marine (Bob Cox and Bob Volk). Assuming the data are verified as acceptable, the ex-situ treated soil (approx 430 cy at 400-500 ppm avg.) will be spread on site. In-situ untreated soils will be excavated to 230 ppm DRO and taken to an out of state disposal facility. In-situ treated soils from the former biopile will be excavated and taken to the Petersburg landfill as top cover if approved by SW Program. Bill Janes
2/22/2007 Update or Other Action Email sent to Karl Hagerman, Public Works Director for Petersburg, regarding landfill disposal option. Bill Janes
3/29/2007 Update or Other Action Email from Mike Noll. ConnocoPhillips conducted a cost-benefit analysis and has decided to ship all contaminated soil to an out of state disposal faciltiy rather than using as landfill cover. Bill Janes
6/13/2007 Update or Other Action Cleanup underway. SIte inspection conducted this date to observe. Bill Janes
6/20/2007 Update or Other Action Update from Mike Noll. About 50 containers filled to date at 22.5 tons each. Small mass of residual contamination appears to remain under the fence along Nordic Drive. Treated water discharged to city system. Bill Janes
7/31/2007 Update or Other Action Update from Mike Noll - About 2,100 cy excavated and removed. Excavations backfilled with clean fill. Small volumes of contaminated soil remain in some areas. Final report expected end of August. Bill Janes
8/21/2007 Update or Other Action Email sent to Mike Noll clarifying that the site can only achieve conditional closure due to residual contamintation above 230 ppm DRO. Bill Janes
8/23/2007 Update or Other Action Cost recovery check for $493.13 received from Law. Bill Janes
9/4/2007 Update or Other Action Two CR checks received from the Department of Law: $612.32 and $1,627.14. Bill Janes
2/26/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Bill Janes
4/30/2008 Update or Other Action Soil Excavation and Disposal Report received from Secor. 1. Approximately 192 cy removed from the central area treated soil stockpile and shipped out of state. 2. The oil water separator and sludge were excavated. 3. About 458 cy of soil were excavated from area 1 and shipped out of state. The site has been backfilled with clean imported fill, compacted to grade, and grded with crushed rock. 4. About 727 cy of soil were excavated from area 2 and shipped out of state. Bill Janes
9/19/2011 Site Visit The exposed areas at 703 South Nordic Drive were inspected by the DEC and no sheen or indication of petroleum contamination was observed. DEC requested a work plan be submitted characterize surface soil in areas of residual contamination along the fenceline at the front of the property for diesel range hydrocarbon fractions. The site is currently a non-operating bulk plant located at the southeast corner of the intersection between Mitkof Highway and Tango Street in Petersburg, Alaska. The site covers approximately 0.4 acres. The bulk plant was constructed in the 1930s and 1940s, and upgraded in 1994 and 1995. Unocal owned and operated the bulk plant until 1992. Alaska Fuel Service became the operator of the bulk plant in 1992. Unocal sold the property to Tosco in 1997. Tosco then sold the property to Alaska Fuel Service in August 1998. The current property owner and site operator is Petro Marine, who acquired the property from Alaska Fuel Service in 1999. Petro Marine removed the overhead loading rack from the site in 2000. Bruce Wanstall
11/30/2011 Site Characterization Workplan Approved DEC has reviewed Soil Characterization & Closure Plan, Petro Marine Petersburg Facilities (Workplan) dated and received by electronic mail today. R&M Engineering-Ketchikan completed the work plan to conduct Site Characterization sampling of surface soil at the former fuel tank site at the Petro Marine Petersburg active bulk fuel facility and areas contaminated by historical oil spills at the inactive bulk fuel tank site Petersburg AFS Tank Farm also known as Former Unocal Petersburg Bulk Fuel Plant No. 0581 and Chevron Facility 350884, ConocoPhillips Site #0923 and Former Tosco Bulk Plant No. 0581. The Workplan correctly identifies exposure pathways and receptors at the site and the fate and transport mechanisms for contaminated media. In accordance with 18 AAC 75.355 (b), qualified impartial third party person(s) drafted the Workplan and will collect the soil samples using methods consistent with DEC methodology. The sampling and analysis plan meets field and laboratory report quality assurance criteria in Contaminated Sites Program guidance documents,therefore the Workplan is approved in accordance with 18 AAC 75.335(d). Bruce Wanstall
9/12/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 72966 Former Bulk Fuel ASTs. Bruce Wanstall
9/19/2012 Cleanup Complete Determination Issued The Contaminated Sites Program (DEC) has completed a review of the environmental records associated with Block 206, Lots 1, 2, 3, 4, 5, 6 & 7, site of the Petersburg AFS Tank Farm located at 703 Nordic Drive in Petersburg, Alaska. Based on the information provided to date in the administrative record located in the offices of the DEC in Juneau, Alaska, the DEC has determined that cleanup actions to date have served to excavate and adequately remove contaminated soil from the site and no further assessment or cleanup action is required. There is no longer a risk to human health or the environment, and this site is now designated as closed. Bruce Wanstall
9/27/2017 Update or Other Action It was recently brought to the attention of Chevron Environmental Management Company (CEMC) that some groundwater sampling points remain at this site. CEMC and Arcadis located two sampling points (GP-1 and GP-2) during a site visit in October 2016. Four other known sampling points (GP-3 through GP-6) could not be located at the time of the inspection. CEMC has scheduled abandonment work to be conducted October 2-4, 2017, in accordance with ADEC guidance. The four missing wells will be searched for and abandoned if located at that time. Arcadis will submit a decommissioning report once the work is complete. Kristin Thompson
1/11/2018 Document, Report, or Work plan Review - other Reviewed the November 22, 2017 Well Deconstruction Report submitted by Arcadis. During a site visit in October 2016, two sampling points (GP-5 and GP-6) were located, while the other four sampling points (GP-1 through GP-4) could not be visually located. An attempt to locate GP-1 through GP-4 was made on October 2, 2017 using ground penetrating radar; GP-4 was located, but there was no evidence of GP-1 through GP-3. It is believed that GP-1 through GP-3 were previously destroyed. On October 3, 2017, Arcadis destroyed GP-4 through GP-6 in accordance with ADEC guidance. There was some confusion in well identification during the original reporting of planned activities (see action notes from 9/27/2017), but this Well Deconstruction Report is correct in documenting the destruction of GP-4 through GP-6. Kristin Thompson
4/8/2020 Site Reopened CSP reopens the site. Randy Guintu
4/8/2020 Document, Report, or Work plan Review - other CSP completes review of Phase II Site Assessment. Randy Guintu
4/8/2020 Workplan Requested The CSP requested a site characterization workplan on April 8, 2020. Randy Guintu
4/17/2020 Workplan Requested The CSP submitted a site characterization workplan request letter on April 17, 2020 to a second RP. Randy Guintu
11/20/2020 Document, Report, or Work plan Review - other The ADEC received a site characterization work plan prepared by Arcadis on behalf of the Chevron Environmental Management Company. Randy Guintu
12/2/2020 Site Characterization Workplan Approved The ADEC approved the site characterization work plan from the Chevron Environmental Management Company on December 2, 2020. Randy Guintu
3/12/2021 Document, Report, or Work plan Review - other The ADEC received the work plan addendum from Arcadis on March 12, 2021. Randy Guintu
3/22/2021 Site Characterization Workplan Approved The ADEC approved the work plan addendum via electronic letter on March 22, 2021. Randy Guintu
9/15/2021 Document, Report, or Work plan Review - other DEC reviewed the Subsurface Investigation Summary Report submitted September 15, 2021. This report documents the advancement of six soil boring, four of which were converted into permanent monitoring wells MW-1 through MW-4. Analytical results identified DRO above migration to groundwater cleanup levels at 5 feet below ground surface at boring location MW-2 and select PAHs in surface soils at MW-3. Groundwater sample results reported DRO and select PAHs exceeded cleanup levels at MW-3. Rebekah Reams
11/9/2021 Document, Report, or Work plan Review - other 2021 Second Quarter Groundwater Monitoring event was conducted on June 15, 2021. Groundwater samples were collected from monitoring wells MW-1 through MW-4. Samples were submitted to the laboratory for GRO, DRO, VOCs, PAHs, mercury, and metals analysis. Groundwater flow direction was to the west-southwest and depth to groundwater was 2.53 to 4.47 feet below ground surface. DRO, naphthalene, 1-methylnaphthalene, and 2-methylnaphthalene exceeded cleanup levels in monitoring well MW-3. Rebekah Reams
1/27/2022 Document, Report, or Work plan Review - other 2021 Third Quarter Groundwater Monitoring event was conducted on August 4 and 5, 2021. Groundwater samples were collected from monitoring wells MW-1 through MW-4. Samples were submitted to the laboratory for GRO, DRO, VOCs, PAHs, and metals analysis. Groundwater flow direction was to the west-northwest and depth to groundwater was 2.49 to 4.34 feet below ground surface. DRO, naphthalene, and 1-methylnaphthalene exceeded cleanup levels in monitoring well MW-3. Rebekah Reams
2/28/2022 Document, Report, or Work plan Review - other 2021 Fourth Quarter Groundwater Monitoring event was conducted on October 21, 2021. Groundwater samples were collected from monitoring wells MW-1 through MW-4. Samples were submitted to the laboratory for GRO, DRO, VOCs, PAHs, and metals analysis. Groundwater flow direction was to the west-northwest and depth to groundwater was 2.00 to 3.96 feet below ground surface. DRO, naphthalene, and 1-methylnaphthalene exceeded cleanup levels in monitoring well MW-3. Rebekah Reams
4/6/2022 Offsite Soil or Groundwater Disposal Approved DEC approved transport of 0.8 cubic yards of soil and 130 gallons of water generated during April 2021 site characterization work. Rebekah Reams
5/10/2022 Document, Report, or Work plan Review - other 2022 First Quarter Groundwater Monitoring event was conducted on March 15, 2022. Groundwater samples were collected from monitoring wells MW-1 through MW-4. Samples were submitted to the laboratory for GRO, DRO, VOCs, PAHs, and metals analysis. Groundwater flow direction was to the west-northwest and depth to groundwater was 1.83 to 2.70 feet below ground surface. DRO, naphthalene, and 1-methylnaphthalene exceeded cleanup levels in monitoring well MW-3. Rebekah Reams
7/14/2022 Potentially Responsible Party/State Interest Letter PRP letter sent to the current landowner, Petro 49, Inc. Rebekah Reams
8/30/2023 Workplan Requested Following a site closure evaluation, ADEC requested a work plan be submitted to evaluated all site contaminants of potential concern in groundwater along the western property boundary to demonstrate that contaminated groundwater is not migrating off the property, evaluate the OWS as a potential source of contamination, and remove the OWS or indicate that it will be appropriately permitted through the Division of Water, Wastewater Discharge Authorization Program. Rebekah Reams

Contaminant Information

Name Level Description Media Comments
DRO 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.

No associated sites were found.

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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