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Site Report: Former Auto Salvage Yards

Site Name: Former Auto Salvage Yards
Address: 5655 Old Seward Highway, Anchorage, AK 99518
File Number: 2100.38.408
Hazard ID: 2028
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 61.169567
Longitude: -149.867869
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

The site was the location of two adjacent auto salvage yard and used parts sales operations, one that began operations by the early 1960s (the former ABC Towing/Adrian Gray site that fronted on Old Seward Highway and 56th Ave.); the other property located adjacent and to the east of the Gray Property had the site name ABC Towing/Carley Property site and reportedly began operating as a salvage yard in the early 1980's. Contamination was first documented by ADEC in 1994 when Contaminated Sites staff observed improper handling of gasoline and other fluids released from automobiles during preparation of salvage vehicles for recycling. The improper handling included piercing of gas tanks with hand tools, resulting in high levels of GRO and BTEX in site soils. Widespread surface contamination was also present as a result of intensive automotive salvage activities on the unpaved properties. Initial PRPs included towing companies (Aurora Towing, City of Anchorage (operation clean sweep)), ABC Towing, and Adrian Gray (Property owner). The ABC Towing/Adrian Gray and ABC Towing/Carley Property sites were considered separate sites until they were administratively combined in 2009 when both properties were purchased as the planned location of a large warehouse. Cleanup complete status with institutional controls (CC-ICs) is in effect for the site as of ADEC's February 19, 2009 decision, with extensive additional environmental work that took place from 2009 through 2016 documented in the March 21, 2018 addendum to the CC-ICs decision.

Action Information

Action Date Action Description DEC Staff
4/26/1994 Notice of Violation Carley site (former): NOV sent to Rod Lewis, operator of ABC Towing, concerning releases of petroleum observed by DEC staff when car crusher was operated on 4-14-94. Eileen Olson
9/28/1995 Notice of Violation Gray site (former)--but NOV also references Carley property contamination: Notice of Violation (NOV) sent to Adrian Gray, Rod Lewis, Aurora Towing, and the Municipality of Anchorage concerning releases of petroleum when car crusher was operated on 9-25-95. Ray Dronenburg
9/28/1995 Update or Other Action Gray site (former)--but NOV also references Carley property contamination: NOV sent to Adrian Gray, Rod Lewis, Aurora Towing, and the Municipality of Anchorage concerning releases of petroleum when car crusher was operated on 9-25-95. Ray Dronenburg
10/19/1995 Notice of Violation Carley site (former): NOV sent to Floyd Carley, landowner, concerning releases of petroleum when car crusher was operated on 4-14-94. Ray Dronenburg
10/27/1995 Update or Other Action Gray site (former): ADEC received analytical results for six samples collected under the search warrant on 9/26/1995. Maximum GRO and DRO concentrations were respectively 11,000 mg/kg and 8,400 mg/kg. Ray Dronenburg
11/17/1995 Update or Other Action Gray Site (former): ADEC received report of on-site drinking water well analysis. No contaminants exceeded MCL except lead, which was present at 0.017 mg/L and may be attributable to fixtures, pump and/or piping, or other sources. Ray Dronenburg
1/25/1996 Update or Other Action Carley site (former) added to database: GRO and BTEX contamination. Ray Dronenburg
1/25/1996 Update or Other Action Carley site (former): Site ranked. Score = 120. AG Leroy Latta assigned. Ray Dronenburg
1/25/1996 Update or Other Action Gray site (former): GRO, DRO and BTEX. Ray Dronenburg
1/25/1996 Site Ranked Using the AHRM Gray site (former): Site ranked. Score = 120. AG Leroy Latta assigned. Ray Dronenburg
4/15/1997 Preliminary Assessment Approved Carley site (former): Reviewed and approved a phase 1 site assessment. More site assessment needs to be performed. Jim Frechione
9/15/1997 Update or Other Action Carley site (former): A limited Site Characterization work plan prepared by Gilfilian Engineering and Environmental Testing was submitted to ADEC for review. Ray Burger
11/18/1997 Site Number Identifier Changed Carley site (former): Split information from Reckey for ABC Towing/Adrian Gray site to this one to distinguish 2 unique properties. Ray Burger
11/18/1997 Site Number Identifier Changed Gray site (former): This Reckey split from 1995210126801 to distinguish 2 properties. Ray Burger
2/9/1998 Meeting or Teleconference Held Carley site (former): ADEC met with Gilfilian and Curt Carley. The limited site investigation report was submitted at the meeting. Jim Frechione
2/11/1998 Update or Other Action Carley site (former): ADEC informed Mr. Carley that the surface debris should be removed and additional site characterization is required. Jim Frechione
5/14/1998 Update or Other Action Gray site (former): Certificate of Lien for State Expenditures for Oil or Hazardous Substance Spill Under AS 46.08.075 signed by Commissioner Michele Brown. Filed May 27, 1998 at Book 3257, Page 727, Anchorage Recording District. Jim Frechione
5/19/1998 Update or Other Action Gray site (former): Letter from AGO Latta to Attorney for the Estate of Adrian Gray (Hugh Wade) recognizing surface debris and structures are removed but 50+ drums need to be addressed. Jim Frechione
6/18/1998 Proposed Plan Carley site (former): ADEC received workplan for Phase II Release Investigation for the Carley site. Jim Frechione
7/1/1998 Site Characterization Workplan Approved Carley site (former): ADEC approved of the Phase II Release Investigation work plan subject to the conditions in the approval letter. Additional sampling and characterization action is required. Jim Frechione
10/29/1998 Update or Other Action Carley site (former): ADEC comments on 10/15/98 Gilfilian report that provided information on the July 1998 field investigation. ADEC concluded that the site was not adequately characterized and additional work is required. Jim Frechione
2/2/1999 Update or Other Action Gray site (former): ADEC letter to Hugh Wade requesting site characterization work plan by 02/16/99 or the State may assume the lead role in the investigation. No response to the letter was received. Jim Frechione
5/20/1999 Update or Other Action Gray site (former): DEC letter to Hugh Wade informing the Estate of Adrian Gray that contaminated soil and drums must not be removed from the site without ADEC approval. There was a documented removal of soil from the site during cleanup operations. Jim Frechione
11/19/1999 Update or Other Action Gray site (former): ADEC letter to the Estate of Adrian Gray requesting their current intentions in regards to site characterization and status of drums. Darrell Gray (Executor of the Estate) called and informed ADEC that the drums were removed. Jim Frechione
11/26/1999 Update or Other Action Gray site (former): ADEC letter to Hugh Wade requesting information regarding the transport and removal of the drums. Jim Frechione
12/16/1999 Update or Other Action Gray site (former): Letter sent to Hugh Wade requesting information about contents of drums formerly stored at the site. Jim Frechione
3/24/2000 Update or Other Action Carley site (former): Mr. Carley requests information from ADEC confidential files. Files reviewed by AGO and those records determined to be "public" will be incorporated into the Carley file. Jim Frechione
4/13/2000 Meeting or Teleconference Held Carley site (former): Meeting held at 555 Cordova to discuss site issues. Participants included Curt Carley, Lynn Kent, and Bill Queitzsch. Lynn Kent
4/13/2000 Interim Removal Action Approved Carley site (former): Phytoremediation as a remedial action approved. Fertilizer and grass seed to be applied. Eileen Olson
4/17/2000 Update or Other Action Carley site (former): Memorandum prepared by Bill Queitzsch sent to Lynn Kent with a summary of the April 13 meeting. Lynn Kent
5/12/2000 Meeting or Teleconference Held Carley site (former): Meeting held at 555 Cordova to discuss site related issues. Participants included Curt Carley, Norm Rokeberg, Lynn Kent, Scott Pexton, Bob Gilfilian, and Bill Queitzsch. Scott Pexton
5/16/2000 Site Ranked Using the AHRM Carley site (former): Site re-ranked based on information in the Site Characterization and Remediation work plan dated October 15, 1998, prepared by Gilfilian Engineering and Environmental Testing, Inc. Scott Pexton
10/27/2000 Meeting or Teleconference Held Carley site (former): Meeting with Leroy Latta, Craig Tillery, and Scott Pexton to discuss site cleanup issues. Scott Pexton
11/6/2000 Update or Other Action Gray site (former): Received faxed information from Energy Recovery Services, Inc. regarding drums formerly stored at the site. Scott Pexton
11/16/2000 Meeting or Teleconference Held Carley site (former): Meeting with Curtis Carley, Bill Sykes, Craig Tillery, Leroy Latta, and Scott Pexton to discuss site cleanup issues. Scott Pexton
11/24/2000 Site Ranked Using the AHRM Gray site (former): Site reranked based on review of case file. Scott Pexton
11/28/2000 Update or Other Action Gray site (former): Final Notice letter sent to Darrel Gray with request for site characterization. Scott Pexton
1/26/2001 Meeting or Teleconference Held Carley site (former): Meeting held at Department of Law with Bill Sykes, Craig Tillery, Leroy Latta, Jim Frechione, and Scott Pexton, with Bob Gilfilian via telephone. Options to characterize the seepage pits area of the Carley property were discussed. Scott Pexton
3/14/2001 Update or Other Action Gray site (former): Letter sent from State Office of the Attorney General to attorney Hugh Wade with request for authorization of DEC, its employees and authorized agents to enter property to perform site investigation work necessary to determine the extent of environmental contamination at the site. Scott Pexton
4/16/2001 Update or Other Action Gray site (former): Request for Proposal issued to Oasis/Bristol JV for Assessment Term Contract #18-2012-12; Adrian Gray Property Soil and Groundwater Sampling. Scott Pexton
4/20/2001 Update or Other Action Gray site (former): ADEC received proposal from Oasis/Bristol Environmental Services for soil and groundwater investigation. Scott Pexton
4/27/2001 Meeting or Teleconference Held Gray site (former): Meeting at ADEC offices in Anchorage with Teresa O'Carroll (Oasis) and Mike Torpy (Bristol) to discuss RFP. Scott Pexton
5/2/2001 Update or Other Action Gray site (former): ADEC received revised proposal from Oasis/Bristol JV regarding soil and groundwater investigation. Scott Pexton
5/4/2001 Update or Other Action Gray site (former):Notice to Proceed issued to Oasis/Bristol Environmental Services by ADEC contract manager. Scott Pexton
5/10/2001 Meeting or Teleconference Held Gray site (former): Meeting at ADEC offices with Hugh Wade, Leroy Latta, Jim Frechione, and Scott Pexton to discuss site access and soil and groundwater investigation issues. Scott Pexton
5/21/2001 Update or Other Action Gray site (former): Received draft work plan for environmental site assessment prepared by Oasis/Bristol Environmental Services. Scott Pexton
5/23/2001 Update or Other Action Carley site (former): Letter from Representative Con Bunde to Commissioner Brown received regarding a conversation with Mr. Carley and inquiring about the status of the situation, what ADEC was doing to resolve problems at the property, and DEC's timeline for cleanup. Scott Pexton
5/29/2001 Update or Other Action Gray site (former): Letter sent to Oasis/Bristol Environmental Services with comments on draft work plan. Scott Pexton
6/5/2001 Site Characterization Workplan Approved Gray site (former): Letter sent to Oasis/Bristol Environmental with approval of June 5, 2001 workplan for environmental site characterization of Adrian Gray Estate Property. Schedule indicates field work to begin June 13th with drillers scheduled to be on site June 18th. Scott Pexton
6/12/2001 Meeting or Teleconference Held Gray site (former): Met with Teresa O'Carroll and Karl Hill of Oasis and Chris Fedele and Craig Gales at the site to discuss the approved work plan and to coordinate characterization activities with business owners. Scott Pexton
6/18/2001 Meeting or Teleconference Held Gray site (former): Met at ADEC offices with Teresa O'Carroll and Karl Hill of Oasis Environmental to discuss field screening results and bore hole and monitoring well locations. Scott Pexton
6/18/2001 Update or Other Action Gray site (former): Reviewed faxed copy of PID screening results received from Oasis. Scott Pexton
7/13/2001 Update or Other Action Carley site (former): Letter signed by Kurt Fredrikkson sent to Representative Con Bunde indicating ADEC had gained access to property adjacent to the Carley property and that OASIS/Bristol Environmental had begun a site investigation under contract with the department. Scott Pexton
8/3/2001 Update or Other Action Gray site (former): Received Draft Site Characterization Report prepared by OASIS/Bristol Environmental Services. Scott Pexton
8/16/2001 Site Ranked Using the AHRM Gray site (former): Site reranked based on information provided in the draft Site Characterization Report prepared by OASIS/Bristol Environmental. Groundwater Exposure Index Value changed from 0.4 to 0. Scott Pexton
9/6/2001 Update or Other Action Gray site (former): ADEC received final Site Characterization Report prepared by OASIS/Bristol Environmental Services. Scott Pexton
9/25/2001 Update or Other Action Gray site (former): ADEC received a request from OASIS/Bristol Environmental Services to transport 18 drums of soil derived from drill cuttings to the Alaska Soil Recycling treatment facility in Anchorage. ADEC sent a letter to OASIS with approval of the request. Scott Pexton
10/1/2001 Update or Other Action Carley site (former): Letter sent to Curtis Carley with request for confirmation soil sampling in accordance with the Site Cleanup Rules. Scott Pexton
10/24/2001 Update or Other Action Gray site (former): ADEC sent letter to OASIS with approval of the request to transport 18 drums of soil to the OIT, Inc. treatment facility in North Pole, Alaska. Scott Pexton
4/23/2002 Update or Other Action Gray site (former): Request for Proposal sent to Oasis/Bristol Environmental Services under Assessment Term Contract #18-2012-12. Request to calculate alternative soil cleanup levels for the site. Scott Pexton
6/3/2002 Update or Other Action Gray site (former): Received Fate and Transport Model and Input Parameters prepared by OASIS/Bristol Environmental Services. Scott Pexton
6/4/2002 Meeting or Teleconference Held Gray site (former): Meeting at ADEC offices with Craig Tillery, Kay Rawlings, Jim Frechione, and Scott Pexton to discuss site cleanup issues and status of cost recovery bill and liens on property. An updated cost recovery bill (CO25442) was distributed with a total amount due of $107,737. Scott Pexton
6/10/2002 Update or Other Action Gray site (former): Received copy of Environmental Degradation Rates data used by OASIS/Bristol Environment Services for SeSoil model calculations to propose alternative soil cleanup levels. Scott Pexton
6/10/2002 Exposure Tracking Model Ranking Adrian Gray property: Initial ranking with ETM completed for source area id: 73006 name: Surface Spills Eileen Olson
6/28/2002 Update or Other Action Gray site (former): Received Leaching Assessment and Alternative Cleanup Levels Final Report, prepared by OASIS Environmental. Scott Pexton
7/11/2002 Meeting or Teleconference Held Gray site (former): Meeting with Darren Stewart, Craig Tillery, Kay Rawlings and Scott Pexton regarding site cleanup process. Mr. Stewart provided copies of a Personal Representative's Deed and a Deed of Trust. The Personal Representative's Deed indicates that Darrell L. Gray, Personal Representative of the estate of Adrian L. Gray granted and conveyed the property to Darren E. Stewart. Scott Pexton
8/1/2002 Update or Other Action ADEC project manager changed from Scott Pexton to Eileen Olson for both Gray and Carley sites (former). Scott Pexton
9/17/2002 Update or Other Action Carley site (former): Responded to fax of 9/12/02 from environmental consultant; plan coming within the week. Provided clarification to consultant that if contamination associated with septic system from adjacent property is found to be the responsibility of the neighboring property owner, the Department cannot close the Carley site until the contamination is cleaned up. Eileen Olson
9/30/2002 Update or Other Action Gray site (former): Received email from Sam Myers of OIT Inc. with copies of certificate of thermal treatment attached that indicated that 18 drums of soil had been thermally treated. The soil had been generated at the property during the OASIS site characterization and approved by Pexton for transport to the OIT facility in October 2001. Scott Pexton
12/31/2002 Update or Other Action Carley site (former): Date of report on file with ADEC is 12/31/2002, with the report submitted to property owner Curtis Carley. The report was faxed to ADEC on 8/28/2003; there is no record that it was received earlier. The report documents sampling of contaminated septic tanks that were identified by a previous consultant. The location of the septic tanks is not specified in reports on file, but is variously described as located along the border between the adjacent Gray and Carley sites and the southeastern corner of the Carley property. Work entailed collecting two samples from a septic tank and collecting 12 samples (tested for DRO, GRO and BTEX) from depths of 18 to 30 inches below the ground surface areas identified in previous investigations as having high field-screening readings. Eileen Olson
8/28/2003 Update or Other Action Carley site (former): DB entry by Olson: Frechione responded to Heather of Rep. Rokeburg's office in response to Curt Carley's complaint to that office. Status of site summarized; work complete but expect restrictions on property use/soil transport offsite. Decision expected by mid-Sept. Jim Frechione
9/24/2003 Record of Decision Carley site (former): The Record of Decision was signed for this site recognizing that elevated levels of soil contamination remain on site but with certain institutional controls - will not pose a risk. The leaching assessment from the Gray property was used in making the decision and requires groundwater monitoring to verify assumptions. It was also recommended that a cover or cap be used at the site to minimize exposure and infiltration. A Notice of Environmental Contamination was forwarded to the RP for signature and recordation. Jim Frechione
9/24/2003 Update or Other Action Gray site (former): ADEC cost recovery bill sent to Darrin Stewart for $107,737 that covers costs through April 2002. Eileen Olson
9/24/2003 Institutional Control Record Established Carley site (former): Groundwater monitoring required, capping recommended, deed notice as NEC required. Eileen Olson
9/24/2003 Conditional Closure Approved Carley site (former): Conditional site closure granted. Eileen Olson
10/1/2003 Update or Other Action (former Gray site): ADEC letter to Darren Stewart (owner) requesting information regarding work done on Former Adrian Gray Estate Property. Eileen Olson
10/1/2003 Update or Other Action Gray site (former): Letter from prospective buyer Nathan Mattox re outstanding debt to ADEC with offer. Eileen Olson
10/2/2003 Update or Other Action Gray site (former): Rec'd faxed description by owner Darren Stuart describing the decommissioning of the water well and monitoring wells on the Gray estate property. The description is dated September 24, 2003. Eileen Olson
10/3/2003 Update or Other Action Gray site (former): DEC letter outlining requirements for NFRAP status sent to current owner Darren Stewart. Part of property was paved and is eligible for NFRAP status with institutional controls if owner agrees to monitor and maintain pavement. Another unpaved area has lead and petroleum contaminants above deparment cleanup levels and will need to be paved before NFRAP status can be considered for the entire property. Eileen Olson
10/6/2003 Update or Other Action Gray site (former): Received copy of Deed of Trust dated June 11, 2002 from Darren Steward, Trustor and Alaska Properties, LLC as Beneficiary c/o law firm of Wade, Kelly & Sullivan. The grantee Darren Steward assumed the obligation to settle and satisfy ADEC's claims. Eileen Olson
11/5/2003 Update or Other Action Gray site (former): Reranked site based on known groundwater contamination: Groundwater Exposure Index changed to 0 from 1, since former monitoring wells were impacted. Eileen Olson
11/26/2003 Update or Other Action Gray site (former): Received Deed of Trust and Warranty Deed signed on October 7, 2003 that transfers ownership through sale from Darren Stuart to Nathan Mattox of Red White and Blue Auto Sales. Eileen Olson
5/18/2004 Update or Other Action Gray site (former): File number changed from CS100.125.1 to 2100.38.408 Sarah Cunningham
6/1/2004 Update or Other Action Gray site (former): A record of decision dated June 1, 2004 was signed by ADEC staff was sent to the current owner/operator (Nathan Mattox) for his signature. The NFRAP and ROD was amended later and replaced by the copy on file dated 6/18/2004. See entry for later date. Jim Frechione
6/9/2004 Update or Other Action Carley site (former): File number changed from CS100.125.2 to 2100.38.413 Sarah Cunningham
6/15/2004 Meeting or Teleconference Held Gray site (former): ADEC staff Olson and Frechione met with owner Nate Mattox regarding the record of decision (ROD) for the property. Eileen Olson
6/18/2004 Record of Decision Gray site (former): Conditional closure granted in a letter of this date to property owner Nathan Mattox titled "No Further Remedial Action Planned (NFRAP) status for Former Adrian Gray Estate Property". Conditional closure letter states that status is dependent upon conditions and requirements set forth in the attached Record of Decision (ROD) being met. The letter dated 6/18/2004 replaces a previous conditional closure letter dated 6/1/2004 that was subsequently amended. Update: 2/20/2009 On 2/19/2008 a ROD and Closure Complete with Institutional Controls was issued for the combined former ABC Towing/Adrian Gray site and ABC Towing/Carley site. Therefore the conditional closure status for the Gray site was changed to Record of Decision since Closure Complete has been issued that pertains to the 2/19/2009 decision. Eileen Olson
6/18/2004 Record of Decision Gray site (former): Re-issued Revised NFRAP and Record of Decision. Document signed 6/18/2004 replaces and includes amendments to previous NFRAP and ROD dated June 1, 2004. Jim Frechione
6/18/2004 Update or Other Action Gray site (former): The action "Institutional Control Record Established" was changed to "update" on 2/20/2009 following issuance on 2/19/2009 of Closure Complete with Institutional Controls status for the former Gray and Carley sites that were administratively combined in January 2009 to become the Former Auto Salvage Yards site. Eileen Olson
9/16/2004 Update or Other Action Gray site (former): Received copy of title report for Adrian Gray property from realtor. Eileen Olson
9/24/2004 Update or Other Action Gray site (former): Rec'd copy of description by former owner Darren Stuart describing the decommissioning of the water well and monitoring wells on the Gray estate property. The description is dated September 24, 2003 and was faxed with a cover letter by owner Nate Mattox. Information was provided in response to ADEC requests for documentation regarding decommissioning of monitoring wells and the drinking water well at the site. Eileen Olson
11/22/2005 Update or Other Action Gray site (former): Change of ownership: Deed of Trust on file showing that Nathan Mattox sold property to Justin Green dba Alaska Demolition on 11/22/2005. Eileen Olson
3/19/2007 Update or Other Action Gray site (former): DEC received "Easement Characterization Work Plan, 56th Avenue and Old Seward Highway, Anchorage, Alaska" for assessment of easement at northwest corner of property at the planned location of a traffic signal for a Wal-Mart Supercenter to be constructed at the southwest comer of 56th Avenue and Homer Drive. Date of plan and date received are the same; consultant notified ADEC that work is underway. Eileen Olson
4/4/2007 Update or Other Action Gray Site (former): DEC approved "Easement Characterization Work Plan, 56th Avenue and Old Seward Highway" in a letter dated March 19, 2007 for work adjacent to contaminated site formerly known as the ABC Towing/Adrian Gray site. Letter notes that verbal approval was granted on April 3, 2007. Eileen Olson
5/4/2007 Exposure Tracking Model Ranking Carley site (former): Site ranked with Exposure Tracking Model. Eileen Olson
11/1/2007 Update or Other Action Gray site (former): DEC received and approved the "Work Plan for Groundwater Assessment, East 56th Avenue and Old Seward Highway, Anchorage, Alaska" prepared by Shannon & Wilson and proposing environmental assessment of soil and groundwater in the easement area at the northwestern corner of the property. Eileen Olson
11/1/2007 Update or Other Action Gray site (former): ADEC received report "Easement Characterization, 56th Avenue and Old Seward Highway, Anchorage, Alaska, May 2007" by Shannon & Wilson, reporting on work done according to the work plan submitted on 3/19/2007. The results of ten push probes, designated Borings B1 through BlO, advanced on April 3, 2007 are reported. Soils were reported as moist for all borings except B-6, for which the 2.3-6 foot interval is described as moist to wet. The locations of the probes were within the boundaries of the proposed easement expansion area within and near the northwest corner of the former Gray site, at the southwest corner of Old Seward Highway and 56th Ave. The purpose of the assessment was to identify potential environmental risks associated with purchasing specific easements associated with planned improvements Wal-Mart might undertake in developing a nearby property. No peat was logged in the probe boring logs. Eileen Olson
12/14/2007 Update or Other Action Gray site (former): Report rec'd titled "Soil and Groundwater Assessment...December 2007" prepared by Shannon & Wilson. The report documents six borings completed as monitoring wells B1MW through B6MW located at the northwest corner of the former Gray property, at the southeast corner of the Old Seward Highway and 56th Ave. intersection. The purpose was to investigate potential environmental risks associated with easements to be purchased for planned improvements by Wal-Mart. The borings were advanced on November 6-7, 2007 with boring locations based on the reported groundwater flow direction to the north and northwest. All screened intervals were appropriate. Groundwater was encountered in all of the borings and was measured at depths of less than 6 feet below the ground surface after drilling. Peat was not present in 5 of the 6 borings, but was present in boring B4MW as a 1/2 foot-thick stratum 4-4.5 feet below the ground surface. Groundwater analytical results were above 18 AAC 75.345 Table C cleanup levels for B2MW and B4MW with respective contaminant levels of: 2.45 mg/L DRO and 1.94 mg/L RRO; and 18.4 mg/L DRO, 1.29 mg/L RRO, and 0.192 mg/L benzene. Soil contaminant levels were also elevated in these two borings, with the results for the B2MW 6-8 foot sample 395 mg/kg DRO and the results for the B4MW 0-2 foot sample 6,760 mg/kg DRO and 16,300 mg/kg RRO and elevated metals analytical results. Eileen Olson
12/31/2007 Update or Other Action ADEC received a plan with laboratory results by email on this date requesting approval to transport three drums of investigation derived waste (IDW) for treatment and/or disposal. Eileen Olson
1/7/2008 Offsite Soil or Groundwater Disposal Approved ADEC approved transport and remediation of three 55-gallon drums of investigation-derived wastes (IDW) containing petroleum hydrocarbon, metal, and PCB-impacted soil, and petroleum hydrocarbon-impacted water generated during the soil and groundwater assessment activities at the East 56th Avenue and Old Seward Highway intersection. Work was done by Shannon & Wilson, Inc. on behalf of Wal-Mart, which has property farther to the east that may be developed, in which case the intersection would need to be upgraded. The soil is contained in two 55-gallon drums, and the water is contained in one 55-gallon drum. One 55-gallon drum containing petroleum hydrocarbon, metals, and PCB-impacted soil will be transported to an EPA-approved Class C landfill in Grandview, Iowa. The analytical results were 467 mg/kg lead and 0.501 mg/kg PCBs. A 55-gallon drum of petroleum hydrocarbon-impacted soil containing 395 mg/kg DRO will be transported for disposal at the Hiland Road landfill. A 55-gallon drum of petroleum hydrocarbon-impacted development/purge water was approved for treatment and filtration prior to release to Anchorage Water and Wastewater Utility (AWWU). The water sample, from Monitoring Well MW4, contained 18.4 milligrams per liter (mg/L) DRO, 1.29 mg/L RRO, and 0.192 mg/L benzene. Eileen Olson
2/27/2008 Update or Other Action ADEC letter clarifying ADEC's position on the contamination issues associated with Walmart's recent acquisition of a 1,888 square foot parcel of land at East 56th and Old Seward Highway to be used for a public utility easement. ADEC will expect the owner or the operator (utility company) of the subject parcel to comply with the terms and conditions of the decision document (current or amended versions) and any environmental regulations that govern the management of contaminated media. Jim Frechione
5/9/2008 Update or Other Action Gray and Carley sites (former): ADEC letter sent to owner Justin Green requesting a release investigation and notifying him of changed conditions relative to Conditional Closure status at the "ABC Towing/Adrian Gray Property" and "ABC Towing/Floyd Carley Property" contaminated sites. at 5625 Old Seward Highway. The letter states that during assessment work done in 2007 in the northeastern area of the Gray site, groundwater contamination was documented for the first time. Conditional closure for both sites was granted based on the findings of a June 28,2002 Leaching Assessment for the Gray site. The report concluded that soil contamination at the site had not impacted groundwater and would not migrate to groundwater in the future if the sites were paved or capped to prevent infiltration. While the letter does not rescind conditional closure status for the two sites, it states that based on the review of the May 2007 Easement Characterization and December 2007 Soil and Groundwater Assessment reports, prepared by Shannon & Wilson, Inc. on behalf of Wal-Mart, the conclusions of the leaching assessment are no longer considered to be valid. ADEC requested that a plan be submitted by June 30, 2008 for a release investigation of the areas where groundwater contamination was documented during the 2007 work, and a schedule for monitoring groundwater in the existing wells on the adjacent ABC Towing Floyd Carley Property site (Carley site) property and existing wells on the Gray site. Eileen Olson
5/12/2008 Update or Other Action (From this entry forward all database entries refer to the combined site described in the database problem statement comments): DEC received BGES plan prepared for prospective purchaser titled "5625 Old Seward Highway, Anchorage, Alaska, 2008 Limited Site Characterization and Cleanup Work Plan". Plan is undated but was received on 5/12/2008 as an email attachment. Eileen Olson
5/14/2008 Document, Report, or Work plan Review - other ADEC issued review letter conditionally approving "2008 Limited Site Characterization and Cleanup Work Plan" prepared by BGES and rec'd (undated) May 12, 2008. DEC requested a modified plan or plan addendum to include measures to be taken to prevent the creation of preferential pathways for contaminated groundwater flow in the proposed utility corridor, a proposed monitoring plan, and other requirements. Eileen Olson
8/25/2008 Update or Other Action Work plan by Shannon & Wilson dated 8/25/2008 received: "Site Characterization and Groundwater Sampling Work Plan, 5625 Old Seward Highway". The plan states "The project scope consists of advancing six soil brings; installing two monitoring wells; collecting subsurface soil samples; developing the new wells and sampling the new and existing monitoring wells; and preparing a summary report. Four of the six borings were advanced and sampled in June 2008. The remaining two borings will be advanced, sampled, and completed as monitoring wells. An Environmental Management Plan (EMP), which will present the procedures to handle potentially contaminated soil and groundwater during the construction phase, will be prepared and submitted to the ADEC as a separate document." Eileen Olson
9/2/2008 Update or Other Action Approved plan: "Site Characterization and Groundwater Sampling Work Plan, 5625 Old Seward Highway" dated August 25, 2008. Eileen Olson
9/22/2008 Document, Report, or Work plan Review - other DEC received and approved this date "Revised Site Characterization and Groundwater Sampling Work Plan, 5625 Old Seward Highway" prepared by Shannon & Wilson. The revisions were requested by the consultant and approved by the DEC project manager in an email dated 9/11/2008. Changes to the August 25, 2008 work plan include relocating one of two proposed monitoring wells and reducing on a one-time basis the number of wells sampled to four including the two new wells. Eileen Olson
11/21/2008 Update or Other Action DEC received report "Site Characterization, 5625 Old Seward Highway...November 2008" by Shannon & Wilson. June 2008 soil sampling and September 2008 Soil and Groundwater sampling are reported. Four borings designated B02, B03, B04, and B05 were advanced within the building footprint to depths of 11.5 to 17 feet below the ground surface (bgs) during the June 2008 sampling effort. Groundwater was not encountered in any of the four borings. One sample was collected from each boring. The only elevated petroleum hydrocarbon constituent encountered in the four samples was 0.525 mg/kg benzene from the B02 2.5-3.5 foot sample described as silty sandy gravel. The second phase of work was done in September 2008 and entailed completing two borings as monitoring wells, B7MW and B8MW. The screened interval for both newly installed wells was below the measured groundwater level after drilling with static groundwater measured in the monitoring wells at 0.92 foot bgs (Well B7MW) and 3 feet bgs (Well B8MW). Groundwater elevations were determined for wells B2MW, B4MW, B7MW and M8MW, indicating a north - northwest flow direction. Eileen Olson
12/31/2008 Update or Other Action ADEC letter notifying the property owner that the closure document will be reissued to relect additional requirements based on changed site conditions, and that there will be associated requirements including long-term groundwater monitoring. Eileen Olson
1/16/2009 Update or Other Action ADEC issued a letter notifying the property owner of both the ABC Towing/Adrian Gray Property and ABC Towing/Carley Property sites, which are adjacent properties, that the sites are to be administratively combined into one site by January 31, 2009, and will share a single site name, file and ADEC-assigned Hazard I.D. number. The new name is the Former Auto Salvage Yards site. Eileen Olson
2/19/2009 Update or Other Action DEC issued a Record of Decision granting Closure Complete with Institutional Controls status to the Former Auto Salvage Yards site. The site was created administratively in January 2009 by combining the adjacent former ABC Towing/Adrian Gray and ABC Towing/Floyd Carley sites. The two former sites were conditionally closed by 2004, but subsequent investigation done in anticipation of development identified previously undocumented groundwater contamination that exceeded ADEC cleanup levels. In addition, the planned land use changed from the current vacant status to a proposed building site. The changed knowledge of site conditions and proposed change in land use necessitated modifications to the existing conditions of closure. The four tax parcels comprising the site are expected to be re-platted as one parcel that is the planned location of a 55,000 square foot retail warehouse. In addition to standard requirements such as recording a deed notice that describes the type and extent of contamination remaining at the site, the institutional controls for the site include requirements to 1) install additional monitoring wells; 2) submit for ADEC approval a plan for monitoring the new and existing monitoring wells, 3) submit an environmental management plan to ADEC for review before pre-construction excavation or other activities take place with the plan covering events specific to the construction period such as dewatering of excavations, dust suppression and diverting runoff; and 4) submit a plan for construction of an asphalt or other ground-surface cap if one is proposed as a means to control infiltration. Eileen Olson
5/11/2009 Update or Other Action Received "Groundwater Sampling Work Plan, 5625 Old Seward Highway" by Shannon & Wilson dated May 11, 2009. The plan proposes work to be done as required by ADEC’s February 19, 2009 Record of Decision including installation of four monitoring wells by July 1, 2009. The plan states that the monitoring wells installed in 2008 demonstrate that the groundwater contaminant plume does not migrate off-property from the Adrian Gray parcel. The wells referred to are B1MW through B8MW, with wells B1MW-B6MW installed Nov. 6-7, 2007 as reported in S&W's report received 12/14/2007; and B7MW and B8MW installed Sept. 24, 2008 as reported in S&W's report received 11/21/2008. The screened intervals for B7MW and B8MW are below the groundwater levels measured after drilling. Eileen Olson
6/18/2009 Document, Report, or Work plan Review - other DEC conditionally approved the "Groundwater Sampling Work Plan, 5625 Old Seward Highway" by Shannon & Wilson dated May 11, 2009 that proposes installing and sampling new monitoring wells, determining whether wells installed in 1997 still exist at the site, and sampling certain of the existing monitoring wells. Two wells (MWB-1 and MWB-6) were approved for decommissioning following final static water level measurement. Eileen Olson
8/6/2009 Document, Report, or Work plan Review - other ADEC approved IDW disposal as requested in Shannon & Wilson "Groundwater Sampling Workplan" dated May 11, 2009. Eileen Olson
9/17/2009 Proposed Plan ADEC received "5625 Old Seward Highway, Anchorage, Alaska, 2009 Soil Borings Work Plan" prepared by BGES and proposing to characterize the magnitude of contamination in soils in areas to be excavated for later construction. The plan notes that the static groundwater level in monitoring well G-2 was reported to be 0.67 foot below ground surface (bgs), and 4.80 feet bgs in monitoring well G-1, and these two wells are within the approximate boundaries of the future building pad location. Both G-1 and G-2 were located on the former Carley property. The plan proposes to advance approximately 27 soil borings in the proposed building excavation area to characterize the extent and magnitude of contaminated soils prior to excavation activities, and 23 soil borings will be advanced in the proposed utility trench excavation areas to a depth of 15 feet bgs. It was BGES' understanding that the utility trenches will be excavated to a depth of approximately 12 feet bgs. Boring in the utility trench areas will be advanced to 15 ft bgs. The utility trenches under the future building will be excavated to a depth of 6 ft, therefore borings in this area will be advanced to 7-8 ft. bgs. Eileen Olson
9/21/2009 Document, Report, or Work plan Review - other ADEC project manager verbally approved the "2009 Soil Borings Work Plan" prepared by BGES and received 9/17/2009. A follow up letter making a record of the verbal approval was sent on October 16, 2009. Eileen Olson
10/16/2009 Document, Report, or Work plan Review - other ADEC letter to Alaska Industrial Hardware documenting verbal approval granted on Sept. 21, 2009 for work plan received Sept. 17, 2009 and prepared by consultant BGES. Eileen Olson
10/30/2009 Update or Other Action ADEC rec'd figures associated with the"Draft Summary of Soil Borings and Contaminated Soil Volume Calculations Along Planned Utility Corridor and Within Proposed Building Foundation, 5625 Old Seward Highway, Anchorage, Alaska" prepared by BGES for AIH. Also provided were logs for the 50 borings. Eileen Olson
12/2/2009 Document, Report, or Work plan Review - other ADEC received information on 12/1 and 12/2: The text portion of the BGES "Draft Summary of Soil Borings and Contaminated Soil Volume Calculations Along Planned Utility Corridor and Within Proposed Building Foundation, 5625 Old Seward Highway" prepared by BGES and dated October 30, 2009 was received 12/1/2009. Previous submittal (10/30/2009 database entry) only included diagrams. The report documents 50 borings that apparently had maximum depths of 10 ft. that were made Sept. 22-29, 2009 to determine potential future disposal options for the contaminated soils that will be removed during pre-construction. All samples were collected within the proposed AIH store footprint or the utility corridor route. On 12/2/2009 ADEC received a figure showing boring locations and a summary table showing soil boring analytical results and soil disposal types. The summary table only included samples that exceeded cleanup levels or contained detectable PCBs. BGES noted in the text that MRLs for DRO exceeded cleanup levels for many samples collected in the southern portion of the building footprint so that area may contain contaminated soil in addition to the northern half that contains documented contamination from various samples collected from the ground surface to 10 ft below ground surface. Samples exceeded cleanup levels for DRO, GRO, ethylbenzene, benzene, total xylenes and trichloroethene (TCE). Lead was present in one sample at a concentration of 1,010 mg/kg. PCBs were detected in eight samples at levels an order of magnitude below 1 mg/kg. Eileen Olson
12/4/2009 Document, Report, or Work plan Review - other Rec'd report "Groundwater Characterization...November 2009" prepared by Shannon & Wilson. In July 2009 four monitoring wells, B9MW through B12MW were installed and sampled; five previously installed wells were sampled; and six previously installed wells were decommissioned. The water levels after installation of two of the new wells, B9MW and B12MW, were above the screened interval by 0.39 feet and 0.69 feet respectively. Well B5MW was accidentally decommissioned instead of well B6MW, and well B3MW was not sampled as proposed in the approved work plan but will be sampled later. Five of the 9 wells sampled including two of the new wells exceeded the cleanup levels for DRO, RRO and/or benzene. Four of the 9 wells sampled are screened below the water table, including MW-2, which was sampled in July 2009 instead of B2MW. In August 2009 B2MW was correctly identified and sampled with RRO the only contaminant exceeding cleanup levels. Eileen Olson
12/8/2009 Meeting or Teleconference Held Met with prospective purchasers and consultant BGES regarding preliminary results prepared by BGES and submitted to ADEC December 1 and 2, 2009 and next steps including status of property following contaminant mitigation measures. Eileen Olson
12/9/2009 Update or Other Action "Environmental Management Plan" (EMP) dated September 2008 prepared by Shannon & Wilson submitted: Prospective purchaser AIH submitted the plan by email on this date after referring to it during a meeting the previous day. The conditions of the site closure documents dated February 2, 2009 require submittal of an EMP at least 30 days prior to earthmoving, excavating, filling, or other activities that would disturb or move soil or groundwater. ADEC noted that the EMP does not included the appendices or Figures 2-5 that are reportedly within Appendix A. Eileen Olson
3/4/2010 Document, Report, or Work plan Review - other ADEC review comments and non-approval of plan "Soil Excavation, Loading, Transport and Land Spreading, February 2010" prepared by ChemTrack and received 2/15/2010. The plan proposes transport of fuel-impacted soil (DRO, GRO, RRO and BTEX) from the site to a site adjacent to the permitted C&D Inert Waste Monofill in Palmer, also owned by Alaska Demolition, to be treated by landspreading. ADEC requested a revised plan that meets the requirements of 18 AAC 75.360, Cleanup operation requirements and 18 AAC 75.365, Offsite or portable treatment facilities. ADEC stated that landspreading without a liner can be proposed, but if it is the revised plan needs to demonstrate that type and concentrations of contaminants present in the soils proposed for landspreading will not leach or migrate resulting in a risk to human health or the environment. Eileen Olson
3/22/2010 Document, Report, or Work plan Review - other ADEC preliminary review comments for "Soil Screening and Characterization, March 2010" plan received March 15, 2010 emailed to ChemTrack noting that review is still in process to ensure that all relevant analytical data was included in the BGES summary diagrams which appear to be the basis for the plan. ADEC further notes that the plan is not approved and that ADEC expects to require additional sampling than that proposed in the plan. Approval is granted only to excavate and stockpile soil at the site with the several conditions listed including but not limited to providing the final dimensions of the proposed excavation at the site; establish known reference points at the corners of the excavation through swing-ties or survey methods; stockpile and map the location of excavated soils so that each 50-cubic-yard or less volume of soil can be located after excavation; off-site transport of any excavated soil is not approved; all excavated soil, including the suspected clean soil, must be placed on a liner and covered; all suspected PCB- and lead-contaminated soils as identified on the attached BGES diagram and identified in other file documents must be segregated in separate stockpiles; soils believed to be contaminated only by fuel compounds must also be stockpiled in a separate area; and advise the ADEC project manager of the field schedule so that staff have the opportunity to observe field work. Lastly ADEC noted that review of the landspreading plan (see database entry of 3/4/2010) is not complete and that approval of landspreading as a remedial method at the proposed receiving property is not a certainty, and if allowed, a liner and cover may required. Eileen Olson
4/12/2010 Document, Report, or Work plan Review - other Reviewed submittal by ChemTrack titled 'Additional Information for the Proposed Land Spread Site Alaska Demolition LLC, March 2010' received on 3/17/2010. Contacted Solid Waste Program Coordinator Lori Aldrich who was referenced in the submittal as having "indicated that she did not object to the placement of a land spread area in this location pending approval by the ADEC Contaminated Sites project manager." Ms. Alrich responded that she had not seen any plans prior to being contacted by the Contaminated Sites (CS) project manager on this date, and that she did not recall stating any such thing. She noted that ChemTrack had been advised that the idea would need to be cleared with the CS coordinator, then a shighly pecific operations plan would need to be submitted before Solid Waste would comment. Further, CS may approve (or deny) the plan based on 18 AAC 60.200(a)(3 or it may also be exempt from SW approval based on 18 AAC 60.005(d). If the area and volume are larger than the exempted size requirements, the responsible party would need to apply for a treatment facility permit if required by CS. Eileen Olson
5/5/2010 Meeting or Teleconference Held Brief meeting with Steve Agni and Chuck Waddell, developers, and submittal of "Former Auto Salvage Yards Lead Soil Sample Results" for work done by ChemTrack without a plan to obtain information on lead concentrations in soil, in an area previously documented during April 2009 work by BGES as having 1,010 mg/kg lead within the 0-2 ft. depth interval. ChemTrack collected two samples for lead analysis on April 5, 2010 (date as per lab sheets) from depths of 0.6 ft below ground surface in the area of the previous elevated sample, with results below 10 mg/kg lead. ChemTrack also excavated 30 cy from the area that was sampled and stockpiled the soil on site. Eileen Olson
5/17/2010 Document, Report, or Work plan Review - other ADEC received notification from consultant ChemTrack that excavating at the site would begin on Tuesday May 18, 2010. In response to the email on the same date, ADEC clarified that all of the soil at the Former Auto Salvage Yards site is considered to be potentially contaminated and does not approve the transport of any soil off-site until field screening and sampling results are submitted. ADEC will consider approval of off-site transport of soil following review of the data. ADEC also noted that since there is still an outstanding proposal to transport soil to a location in Palmer, it is important that soil that the record of investigation for the site indicates will be clean is properly segregated as ADEC will not be able to approve transport to the proposed Palmer site of any material that has not met the most stringent cleanup levels until the community input and notification issues are addressed. ADEC further stated that if ChemTrack, acting for Alaska Demolition, intends to pursue landspreading at the Palmer site it will need to contact the City of Palmer to find out what their restrictions are, and go through the public process since the land use at the proposed site has been controversial and there are many interested parties. results. Eileen Olson
6/9/2010 Update or Other Action ADEC rec'd a letter which combines a short report and plan (essentially the required Environmental Management Plan (EMP)) with subject line "56th & Old Seward Highway Site, Your file no. 2100.38.408" dated June 8, 2010 with attached excavation sample results for work completed between March 1st and May 15th 2010 by ChemTrack; letter prepared by developer Steve Agni notes that work was done with objective of providing 'proof of concept' with respect to the type of materials present at the site. No work plan was provided prior to work that included excavating a 25 ft by 25 ft area, 10 ft deep and sampling the stockpiled soil for DRO and BTEX. The plan proposes blending of contaminated soil for use as cover at the permitted construction debris landfill in Palmer. Eileen Olson
6/25/2010 Update or Other Action ADEC notified ChemTrack in an email on this date that comments on Environmental Management Plan received 6/9/2010 will be forthcoming and reminded ChemTrack that transporting any soil excavated from a contaminated site requires ADEC approval, and if the plan is to treat contaminated soil at the Palmer construction fill pit property without a liner, the public notice and comment process will be required. Eileen Olson
6/28/2010 Update or Other Action ADEC received email notification during the A.M. from Steve Agni, developer and realtor that there are now no plans to transport and dispose of contaminated soil at the Palmer Alaska Demolition fill pit property, and that if such activities are planned in the future a plan will be submitted to ADEC. Eileen Olson
6/28/2010 Meeting or Teleconference Held Following an afternoon meeting, ADEC sent an email to Chemtrack and developer Steve Agni making a record of the discussion and decisions made during the meeting, including outlining the applicable requirements regarding sampling and disposal of peat excavated from within the foundation excavation for the proposed AIH warehouse. Conditions included segregating peat-rich soil from other soils and analytical sampling frequency. Eileen Olson
6/30/2010 Update or Other Action ADEC requested documentation regarding proposal to replace excavated soil containing up to 1,000 mg/kg DRO into the foundation excavation. Steve Agni, developer responded. The issue later became moot because, although conditionally approved, no contaminated soil was returned to the foundation excavation during the course of the project. Eileen Olson
7/6/2010 Meeting or Teleconference Held Staff met with consultant and purchaser; planned site visit for following day. Eileen Olson
7/7/2010 Document, Report, or Work plan Review - other ADEC email to developer who represents both purchaser and seller in response to 7/7/2010 emailed supplement to plan received 6/9/2010, both prepared by developer Steve Agni who is not a qualified party as required by regulation. ADEC requested a revised plan prepared by a qualified person and advised developer that purchaser will remain responsible for meeting the conditions of the Feb. 19, 2010 Record of Decision, including long-term groundwater monitoring and submittal of an environmental management plan for ADEC approval prior to pre-construction earthwork and/or dewatering. Eileen Olson
7/7/2010 Site Visit Two site visits this date, one in the a.m. during which only 2 of the 5 monitoring wells reportedly present could be located (wells B7MW and B11MW). Water present at 2 - 4 feet below ground surface. Agreed to return in afternoon after consultant had time to locate additional wells. By the afternoon site visit a third well B9MW had been confirmed as being located beneath a material stockpile. Additional wells B3MW and 4MW reportedly located beneath additional stockpiles but not confirmed. Eileen Olson
7/13/2010 Update or Other Action Revised Environmental Management Plan (EMP) dated 7/9/2010 with subject line "56th & Old Seward Highway Site" received this date, includes two attachments, "Initial Lead Soil Sampling Report" dated May 5, 2009 and already submitted to ADEC in May 2010 (see 5/5/2010 database entry) documenting excavation of 30 cy of soil and collection of two surface lead samples and "Initial Excavation SAP Report, June 2010" submitted for the first time, documenting work done without submittal of a work plan including excavating and sampling 300 cy of soil, with samples collected on May 20, 2010. The EMP revises the plan prepared by Steve Agni dated June 8, 2010 that was submitted to DEC on June 9th and was signed by a qualified person, Chuck Ronan of ChemTrack. Eileen Olson
7/13/2010 Document, Report, or Work plan Review - other ADEC preliminary review comments for Environmental Management Plan (EMP) dated 7/9/2010 with subject line “56th & Old Seward Highway Site” received this date. The EMP revises the plan prepared by Steve Agni dated 6/8/2010 and is signed by a ChemTrack representative. The "Initial Excavation SAP Report, June 2010" was submitted for the first time as an attachment to the EMP and documents work done without submittal of a work plan that included excavating, sampling and stockpiling 300 cy of soil, with samples collected on May 20, 2010. Review by the ADEC CS chemist included the suggestion that a method such as PetroFlag may be more appropriate for field screening gravel especially if it is heavily weathered petroleum and noting that peat is a problem with any field screening or analytical method. The CS chemist also noted that the SAP report only presents the silica gel cleanup results for the samples and does not provide the chromatograms and that chromatograms must be submitted. The field screening criteria to determine 'clean' material was not found to be valid, as a PID field screening reading of <100 ppm should not be considered clean, nor should visual/olfactory screening of peat be used to determine whether soil is ‘clean’. Eileen Olson
7/16/2010 Document, Report, or Work plan Review - other ADEC initial review of "Peat Stockpile Sampling and Analysis" report dated July 14, 2010. ADEC requested additional information in an email to involved parties (ChemTrack, AIH, AlaskaDemo). Approximately 3,000 cy of soil was sampled. ADEC noted that the report only presents the silica gel cleanup results for the samples and does not provide the chromatograms, which is not consistent with ADEC technical memo data reporting requirements. ADEC cannot accept silica gel results without further documentation/evaluation, therefore chromatograms were requested. Additionally, the lab checklist submitted is not filled out correctly; the peat samples were not submerged with methanol in the field; the Anchorage lab added methanol to samples E-H and “H” had to be re-extracted at the Portland lab. The checklist marks “yes” for everything and says all data is usable. At a minimum, the GRO/BTEX results for samples E, F, and G should be flagged as low-biased estimates and H should be rejected. Additionally, this elevates the benzene reporting limits above the cleanup level which is incorrect on the checklist. Eileen Olson
7/19/2010 Update or Other Action ADEC received lab review checklists from ChemTrack this date for two soil sampling reports submitted on 7/13/2010; these were the SAP report submitted with the Environmental Management Plan for ~300 cy soil) and "Peat Stockpile Sampling and Analysis report" for ~3,000 cy peat). Eileen Olson
8/3/2010 Update or Other Action ADEC acknowledgement to Alaska Soil Recycling (ASR) that 175.54 tons of petroleum impacted soil had been transported to ASR and that in accordance with ASR's approved facility operations plan the sils are to be co-mingled with other soils unless otherwise indicated, the soils are covered by tbe bonding requirements of 18 AAC 75.365; and no further remedial action is required by the responsible party for the soils. Eileen Olson
8/4/2010 Document, Report, or Work plan Review - other ADEC provided final review comments by email for the "Peat Stockpile Sampling and Analysis Report" received 7/14/2010 and prepared by ChemTrack. The report provides both DRO and post-silica gel cleanup DRO results for approximately 3,000 cubic yards of excavated and stockpiled peat. ADEC's preliminary review comments on 7/16/2010 requested chromatograms for the laboratory analysis of the peat, field notes and laboratory QA/QC checklists in accordance with applicable ADEC guidance documents. Following receipt of the requested data by 7/21/2010 ADEC provided review comments in an email dated 8/4/2010, noting that the applicable site cleanup level for DRO is 250 mg/kg (rather than 230), so several samples that exceeded 230 mg/kg DRO but did not exceed 250 mg/kg can be considered to meet Method Two cleanup levels for the Anchorage precipitation zone. Additionally, review of the chromatograms for one sample that exceeded the DRO cleanup level indicated that all compounds detected were biogenic, so the sample was considered to be below the applicable cleanup level for DRO. Eileen Olson
8/4/2010 Meeting or Teleconference Held Brief meeting with ChemTrack Chuck Ronan and developer Steve Agni a.m. ADEC prior to providing email response same date regarding chromatogram interpretations by CS chemist Earl Crapps for peat analyses and determination of validity of silica gel cleanup results for peat samples. Eileen Olson
8/5/2010 Update or Other Action Email sent notifying Chuck Ronan of ChemTrack that review of ChemTrack's plan dated 7/9/2010 (rec'd 7/13/2010) can be completed after receiving Attachment A to the plan and the previously requested groundwater measurements for the two wells at the site that could be located, and the total number of wells determined to remain at the site. Eileen Olson
8/5/2010 Offsite Soil or Groundwater Disposal Approved ADEC approved off-site transport of soil for the first time during this project by email on this date stating that the 3,000+ cy of peat shown to meet cleanup levels for DRO could be hauled off-site. DRO levels were shown to be biogenic by evaluation of chromatograms by CS chemist. Eileen Olson
8/9/2010 Meeting or Teleconference Held Staff Rich Sundet and project manager met with Chuck Ronan of ChemTrack, Inc. and Steve Agni of Development Managers, Inc. Discussed during the meeting was the fact that DEC has not yet approved ChemTrack’s workplan received July 13th. ADEC also learned during the meeting that work proposed in the plan including the backfilling of contaminated soil at depth within the building footprint excavation was done without ChemTrack’s knowledge or oversight. ADEC noted in a followup email to Mssrs. Ronan and Agni that DEC regulations at 18 AAC 75.355 require that a responsible person ensure that the collection, interpretation, and reporting of data, and the required sampling and analysis is conducted or supervised by a qualified, impartial third party. Staff noted that a review letter will be forthcoming upon receipt of information requested in the ADEC project manager's email of August 5, 2010, and to refrain from working without direct oversight of a qualified third party and refrain from placing contaminated or potentially contaminated soil back in the excavation until plan review is complete. Eileen Olson
8/10/2010 Document, Report, or Work plan Review - other ADEC received monitoring well information requested by email on 8/5, 8/6 and 8/9. Two wells were located; Groundwater level in B7MW below ground surface was 1.2 ft and in B11MW was 1.4 ft with measurements taken on 8/9/2010. ADEC also received email confirmation from Steve Agni, developer, that only material tested as clean has been placed as backfill in the building footprint. Eileen Olson
8/13/2010 Document, Report, or Work plan Review - other ADEC letter issued granting limited conditional approval for plan and report dated July 9, 2010 titled "56th & Old Seward Highway Site" prepared by ChemTrack and received on July 13, 2010. The approval was limited to approval with conditions to place excavated site soil into the excavated footprint and over-excavated perimeter. The other portions of the proposed plan are not approved unless previously approved in writing by ADEC. Eileen Olson
8/18/2010 Site Visit At the request of Rich Sundet, ADEC staff member Brent Porter met Chuck Ronan at the site and observed site work. Ronan and Porter discussed the work plan, segregation of contaminated soils, field screening techniques, and their sampling strategy according to the work plan. Brenton Porter
8/19/2010 Site Visit A second site visit was made by ADEC staff member, Brent Porter to discuss two issues identified by Rich Sundet and Eileen Olson. The first issue discussed with Mr. Ronan was the need to have an ADEC qualified person onsite directing the site environmental work. The second issue discussed with Ronan was the movement of contaminated soil without an approved work plan. Ronan indicated that contaminated soil was moved on site, but he thought that he had ADEC verbal approval to work. ADEC site visit report dated 8/19/2010 on file. Brenton Porter
8/19/2010 Update or Other Action ADEC email to ChemTrack regarding request to use soil excavated prior to receipt of DEC's August 13th letter as backfill. ADEC requested field notes for all excavated soil proposed for use as backfill, a table showing the total estimated volume of non-peat soil excavated to date, the dates it was excavated, and the status of the fill (that is, the volume that has been used as fill, and the volume of soil remaining in stockpiles that is proposed for use as fill in the excavation). If all of the soil to be used as fill has not been field screened at one sample per 10 cubic yard; for example if the uppermost layer of sand and gravel was not field screened during excavation it will need to be field screened before being used as fill. The placement of fill should be documented in field notes during work, including the maximum depth below the surface of the bottom of the fill layer, the thickness of the re-used fill placed in the excavation, and the location of the clean fill buffer zone. (Note that contaminated soil was not placed in the foundation excavation during the project despite conditional approval granted). Eileen Olson
8/31/2010 Update or Other Action Chemtrack letter dated 8/31/2010 provides information re fill material excavated at the site prior to ADEC letter dated 8/13/2010. Approval requested by ChemTrack to use the fill material excavated at the site prior to ADEC August 13 letter that has a PID<2, no odor, and no sheen. The material will be placed on top of a 4 ft layer of imported fill. (This pertains to use of potentially contaminated soil as backfill in the AIH store excavation, no soil exceeding 250 mg/kg DRO was used for this purpose). Eileen Olson
9/2/2010 Site Visit Staff visited the site during compaction of backfill and met onsite with consultant ChemTrack. Staff noted dewatering of excavation in progess from the excavation into a drainage ditch and lack of liner or cover for potentially contaminated stockpiles. Approximately 80 feet of width for the approximately 300 foot long by 160 foot wide building footprint remains to be excavated to the depth of peat. Eileen Olson
9/3/2010 Update or Other Action In response to ADEC's request for information regarding dewatering at the site, Brad Bigelow of Alsaka Demolition stated that the dewatering in question was being done only after heavy rains and is all done within the confines of the property limits with daily inspections and maintenance of BMPs in place for M.O.A. SWPPP to prevent migration of sediment into the catch basins in the northeast and northwest corners of the subject property. Eileen Olson
9/7/2010 Update or Other Action Consultant ChemTrack notified ADEC by email that the stockpiles of potentially contaminated soil observed during ADEC's site visit on 9/2/2010 were covered on 9/3/2010. Eileen Olson
9/28/2010 Update or Other Action Consultant ChemTrack submitted by email analytical data and chromatograms for peat samples from stockpile designated 'K' collected on 9/16/2010. Stockpile K contained an estimated 375 CY and was sampled at a rate of 1 sample per 25 CY, for a total of 15 samples collected for DRO analysis, with silica gel (SG) cleanup conducted on (& chromatograms provided for) samples that exceeded the 250 mg/kg cleanup level for DRO under method 2, less than 40 inch precipitation zone, of 18 AAC 75.341 (Soil cleanup levels; tables). Following SG cleanup all of the samples were below the 250 mg/kg DRO cleanup level, ranging from 112 to 231 mg/kg DRO. ChemTrack noted in a separate email that the excavation for the building is finished with backfilling still in progress using imported fill. ChemTrack also reported that no sand/gravel has been transported from the site and only the peat that was specifically approved for removal has been transported off-site. Eileen Olson
9/30/2010 Update or Other Action Consultant ChemTrack submitted data for samples collected on 9/27/2010 from stockpile BP, containing approximately 500 CY. Thirteen of 20 samples contained less than 250 mg/kg DRO without using silica gel cleanup. Following silica gel cleanup the 7 samples no longer exceeded the cleanup level for DRO, with results ranging from 64 to 184 mg/kg DRO. Request for review of samples containing less than 250 mg/kg DRO so that the soil can be removed from the site. Consultant noted that previously sampled peat materials with DRO levels less than 250 mg/kg were scheduled for transport from the site, and stated that peat that was re-analyzed using silica gel methods would not be removed without ADEC review. No chromatograms or COC forms provided; ADEC requested. Eileen Olson
10/1/2010 Update or Other Action Consultant ChemTrack submitted chromatograms for samples collected on 9/27/2010 from Stockpile BP (containing an estimated 500 CY). Chromatograms for all samples provided, and chromatograms for samples that initially contained over 250 mg/kg DRO and were re-run with silica gel cleanup were provided. Eileen Olson
10/1/2010 Document, Report, or Work plan Review - other ADEC approved off-site transport and use/disposal of ~875 CY of peat containing less than 250 mg/kg DRO. Based on a review of chromatograms by ADEC chemist Earl Crapps, ADEC determined that the chromatograms received on 9-30-2010 for the sampling on 9/27/2010 showed the material was peat with very low levels of anthropogenic contaminants present, and placed no restriction on the movement or placement of that soil (i.e. Stockpile K, estimated at 375 CY). For soil showing the presence of diesel but at levels below the 250 mg/kg cleanup level for DRO (i.e. Stockpile BP, estimated at 500 CY), the soil placement is restricted to areas at least 100 feet from any area that is sensitive such as a wetland or within the protective radius of a drinking water supply system such as a Class A well. Rich Sundet
10/8/2010 Update or Other Action ADEC received a letter from Alaska Demolition owner Justin Green requesting use of ~3,000 cy of 'legacy gravel' containing less than 250 ppm DRO and approximately 1,000 cy peat containing less than 250 ppm DRO. Green stated that he intends to place the material within a flat area of about 400 ft x 250 ft on his 9-acre property on Finland Drive in Potter Valley (Anchorage). Eileen Olson
10/11/2010 Update or Other Action ChemTrack submitted sample data for peat samples collected on 9-27-2010 with request for ADEC review to 'remove the peat material based on sample data and the previous handling of the peat.' Eileen Olson
10/20/2010 Document, Report, or Work plan Review - other In response to ADEC's request by email on 10/13/2010, consultant ChemTrack submitted a site figure showing the general layout of the excavation and various stockpiles. ChemTrack noted that the excavation backfilling is finished and on this date submitted an excavation backfilling report on a disc. According to ChemTrack the last section of the excavation was shallow (4 ft deep) with very little or no peat and all of the backfill was comprised of clean imported fill material. So far no sand and gravel (non-peat) soil has been removed from the site. Eileen Olson
10/24/2010 Update or Other Action ADEC received analytical and other data* for peat samples collected on 10/6 (work orders ATJ 0023 and ATJ 0022) and 10/7/2010 (work order WO 0027). *Other data includes chromatograms, summary of peat data pre- and post-silica gel cleanup, laboratory data review checklists. Eileen Olson
10/26/2010 Update or Other Action ADEC received a final report "LEGACY STOCKPILE SAND/GRAVEL Sample Analytical Data, October 2010" via email from ChemTrack for sampling sand/gravel fill material referred to as the legacy stockpile. The pile was demarcated into 98 grids that were sampled. The 'legacy stockpile' included intermixed peat. The narrative states the following: During the site excavation the sand/gravel fill material was separated from the peat material. Both the peat and he sand/gravel fill material were field-screened to evaluate potential contamination. Sand/gravel fill that had no sheen, no odor and had a PID measurement of 2 units or less was staged separately for potential re-use as on-site backfill material. This sand/gravel stockpile has been designated the "Legacy Stockpile". Please note that sand/gravel fill material that did have an odor/sheen and/or PID measurement >2 units was staged in a different area. The data for that stockpile is pending and will be provided in a separate report. Eileen Olson
10/27/2010 Document, Report, or Work plan Review - other ADEC email with attached transport approval form for 50CY in response to Alaska Demolition request dated October 21, 2010. The email states that based on communications with ChemTrack in which ChemTrack indicated it only proposes to thermally treat 50 CY comprising soil containing over 1,000 mg/kg DRO, the approval was limited to the 50 CY portion of the estimated 500 CY stockpile that had DRO levels in excess of 1,000 mg/kg (the transport form approves the entire 500 CY to ASR). The remaining soil is now slated for reuse as approved in engineering cross-section. The two 25-cubic yard lots are designated A1.4 and A4.4 and originated from stockpile “S&G El 8’” shown on the right side of the figure titled “AIH/AK DEMO Layout of Dirt Piles” received from ChemTrack on 10-20-2010. Eileen Olson
11/18/2010 Offsite Soil or Groundwater Disposal Approved ADEC conditionally approved transport of ~2,500 cy of gravel containing less than 250 mg/kg DRO to the private Green property designated in 10/8/2010 correspondence with the following conditions: 1) The placement and depth of the fill transported from the Former Auto Salvage Yards site will be located on a to-scale diagram of the receiving property so that ADEC may verify a separation distance of at least 100 feet from surface water bodies, including the pond shown on the site plan that has yet to be excavated. 2) All solid waste will be removed from the fill upon unloading and spreading/placement at the receiving property. 3) Approval is granted only for material that was sampled according to the requirements of ADEC’s letter dated August 13, 2010, for which analytical results were provided to ADEC, and for which DRO concentrations were either below 250 mg/kg DRO, or for which ADEC explicitly approved any analytical results for DRO that exceeded the 250 mg/kg cleanup level that were subsequently reduced based on the presence of biogenic compounds as determined by a review of the chromatograms. 4) ADEC staff will be allowed access to the receiving property during and after placement of the soil as appropriate for general oversight functions and/or to verify the placement of soil with respect to existing or planned surface water bodies. 5) ADEC may issue these conditions in greater detail and reserves the right to require additional recordkeeping and documenting than that provided in this email. Eileen Olson
11/23/2010 Document, Report, or Work plan Review - other ASR Soil Disposal notification received stating that on 11/18/2010 ASR received 48.4 tons of soil from 5625 Old Seward Highway site for thermal treatment. ADEC signed acknowledgement. (See 10/27/2010 entry). Eileen Olson
12/10/2010 Update or Other Action ADEC received an email from Alaska Demolition (owner or previous owner) stating that it plans to haul the remaining portion of the ~500 CY stockpile (for which 50 CY was approved by ADEC for thermal treatment at ASR - see 10/27/2010 entry) that has less than 1,000 mg/kg DRO to the Anchorage Regional Landfill (ARL). Attached to the email is a Municipality of Anchorage letter with subject line 'Contaminated Soil Disposal Authorization' dated December 9, 2010 approving disposal of an estimated 1450 CY from the site, with disposal authorization expiring on Dec. 30, 2010. Eileen Olson
1/7/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved transport of an estimated 750 cubic yards (CY) of contaminated soil to ASR for thermal remediation. Transport was requested on this date. The request was made the same day in an email from Alaska Demolition (owner or previous owner) stating that it plans to haul the remaining portion of the ~500 CY stockpile (for which 50 CY was approved by ADEC for thermal treatment at ASR - see 10/27/2010 entry) that has less than 1,000 mg/kg DRO to the Anchorage Regional Landfill (ARL). Attached to the email is a Municipality of Anchorage letter with subject line 'Contaminated Soil Disposal Authorization' dated December 9, 2010 approving disposal of an estimated 1450 CY from the site, with disposal authorization expiring on Dec. 30, 2010. Eileen Olson
1/25/2011 Update or Other Action ADEC acknowledged receipt of Alaska Soil Recycling (ASR) informational letter notifying ADEC that on January 11 & 12, 2011 ASR received 1901.51 tons of petroleum impacted soil from the site. ASR's letter notes that in accordance with ASR's approved facility operations plan no further remedial action is required the responsible party for the soils, etc. (This is soil approved for transport & remediation - database entry 1/7/2011). Eileen Olson
2/17/2011 Update or Other Action ADEC letter responding to email request on 2/2/2011 by owner and developer AIH with attached "Updated Conceptual Site Model (CSM) Report...February 2011" prepared by ChemTrack. AIH requested a letter from ADEC that AIH has substantively met the requirements of ADEC's Record of Decision dated February 19, 2009 and continues to meet other applicable ADEC regulatory requirements with respect to the site for the purpose of meeting Municipality of Anchorage permitting requirements. ADEC advised AIH that additional environmental actions including monitoring well installation and long-term groundwater monitoring will be required. Eileen Olson
4/14/2011 Site Visit Site visit to determine status of stockpiled soil at the site. Eileen Olson
4/20/2011 Update or Other Action ADEC letter sent to Alaska Industrial Hardware and Alaska Demolition, respectively current and former owners, requesting information regarding excavation of contaminated or potentially contaminated soil that took place in late March or early April 2011. The letter noted that ADEC learned through discussions with Chemtrack and AIH representatives that the northeast area of the site had been excavated, with soil sampled, analyzed and stockpiled, without submittal of a work plan to ADEC or notice to ADEC prior to work. Eileen Olson
4/21/2011 Update or Other Action Former owner Alaska Demolition responded by email to 4/20/2011 information request by stating that work has been in progress, that ChemTrack personnel have been present for all excavation, and that consultant will provide the results of excavated soil analysis soon. ChemTrack representative responded by email on same date that 'no suspect contaminated material has left the site' and that 'all of the suspect contaminated material remains at the site'. Further, ChemTrack representative stated that he had all data for the excavated material, which was excavated from the northeast corner of the site. Eileen Olson
4/24/2011 Update or Other Action ADEC received "Utilidor Excavation SAP Report, Former Auto Salvage Yards...April 2011". Peat and coarse-grained soil (sand and gravel) were excavated and segregated, with an estimated 270 cubic yards (CY) of peat excavated and 480 CY of coarse-grained soil excavated. The utility corridor is located in the northern central section of the site, just south of E. 56th Avenue. The peat was screened and sampled and the lab conducted silica gel cleanup on samples to demonstrate that there is a biogenic component to the results in the diesel range organics range (DRO) and that the analytical results are therefore below the applicable cleanup level for DRO. (ADEC chemist to review results & chromatograms). Report is not complete as a peat sample is being re-run with silica gel cleanup. Eileen Olson
5/13/2011 Update or Other Action Received request dated May 10, 2011 from Alaska Demolition (former owner) to transport 275-300 cy of peat to Alaska Demolition owner Justin Green's residence, with the material proposed to be placed in a flat area a minimum of 100 feet from surface water or drainages. (See transport approval entry for this soil 6-10-2011). Eileen Olson
6/3/2011 Document, Report, or Work plan Review - other Reviewed report "Utilidor Excavation SAP Report" received 4/24/2011; requested chromatograms not included with report. Eileen Olson
6/8/2011 Document, Report, or Work plan Review - other ADEC received complete data packet including chromatograms for report received 4/24/2011. Following review of report ADEC had noted that all chromatograms had not been provided, and on 6/7/2011 requested all results (before and after silica gel cleanup results), with final concentrations and surrogate recoveries provided. Eileen Olson
6/9/2011 Update or Other Action ADEC received an email from consultant ChemTrack with attached "Analytical Sample Report, Storm Drain Excavation Soils, Former Auto Salvage Yards...June 2011." The report documents excavation and sampling of approximately 480 Cubic Yards of coarse-grained (sand & gravel) soil from May 31 - June 7, 2011 during excavation for a storm drain system running east-west at the northern property boundary, south of E. 56th Avenue. The email notes that excavation of soil and installation of a storm drain system is in progress and that sand/gravel material with less than 250 mg/kg DRO will be used as fill at this site or at another location, and excavated material with DRO levels above 250 mg/kg will be disposed of at the MOA ARL landfill. ChemTrack states that clean material will be moved as necessary to allow for continued site excavation. The material that exceeded 250 mg/Kg will be kept onsite pending approval for disposal from the Municipal Landfill and submission of that approval to ADEC with a request to transport the soil. Eileen Olson
6/10/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved transport of an estimated 275-300 CY of peat for use at Alaska Demolition owner Justin Green's property following receipt of all chromatograms and data package on 6/9/2011. (See request for transport entry 5-13-2011). Eileen Olson
6/23/2011 Document, Report, or Work plan Review - other ADEC received consultant ChemTrack's request to transport an estimated 125 CY (five 25-CY piles) from the site to ASR for thermal remediation. DRO results ranged from 293 - 2,480 mg/kg DRO and RRO results 1,080 to 3,040 mg/kg. Upon review ADEC requested additional information to identify the post treatment analysis including the complete laboratory data report,chain of custody for the stockpile samples, and a copy of the work plan and approval letter for the stockpile sampling. Eileen Olson
6/30/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved transport and thermal remediation of an estimated 125 CY soil at ASR as per request by consultant ChemTrack dated 6/23/2011. (See corresponding receipt of ~160 tons of soil by ASR - database entry of 7/19/2011). Eileen Olson
7/19/2011 Document, Report, or Work plan Review - other ADEC acknowledged receipt of Alaska Soil Recycling (ASR) informational letter dated 7-17-2011 notifying ADEC that 160.54 tons of petroleum impacted soil from the site was received on July 1, 2011 and would be co-mingled with other soils etc. in accordance with ASR's approved facility operations plan. (See corresponding database entry on 6-30-2011 approving transport of this soil). Eileen Olson
7/19/2011 Update or Other Action On July 18 and 19, 2011 ADEC received several data packages (analytical results, chromatograms and silica gel analysis) from consultant Chemtrack for samples collected from peat stockpiles. Cover letters for each group of samples stated that ChemTrack requested approval to use the post silica gel results (all of which indicated DRO levels are below the 250 mg/kg cleanup level). Eileen Olson
7/21/2011 Update or Other Action AIH (new owner) representative requested timeframe for approving authorization to move material from the site to the various locations where it would be acceptable (Burner, Landfill, Etc...). Eileen Olson
7/25/2011 Document, Report, or Work plan Review - other ADEC sent reviews of two groups of data to consultant and RP. (1) First email review requests corrected checklists and other information not provided in submittals of 7/18 & 19/2011. Although the silica gel results for the samples listed are acceptable, the analytical checklists require correction before approval may be granted. That is, a number of data issues identified in the lab reports were not documented on the checklists and include this information in the required QA/QC text of the report. ADEC also requested that the laboratory be instructed to submit integrated chromatograms in the future. (First review email Sample nos.: 50,51,460A,84,89,90_A, 75,77_A, 156,157,18,159,160,161,163_A. SD_18_A and SD-27_SD-38_A). (2) The second email review for this date pertained to the analytical packets including silica gel cleanup data for two groups of samples (169 & 171) and (138,145,148) submitted electronically on this date. ADEC requested additional information based on the following deficiencies: For sample 169, only the silica gel results were reported, and the remaining samples were re-extracted on 7/19; however, the original silica gel result for sample 171 from the 7/18 extraction is reported, which is not acceptable because the same extract must be reported, before and after silica gel cleanup. The silica gel cleanup chromatogram was not provided for sample 145. Eileen Olson
7/26/2011 Document, Report, or Work plan Review - other ADEC approved by email the partial response to 2nd email review of 7-25-2011 by ChemTrack (that is, the chromatogram for sample 145 was provided and ADEC's chemist found it to be acceptable). ADEC also noted that transport of soil other than that with remaining issues noted in 7/25/2011 reviews can be approved if requested. AIH (owner) responded by email, requesting that ADEC approve transport of soil other than AUG 0032 (packet containing sample 169, 171 data) which will be submitted as soon as the lab provides the additional information. Eileen Olson
7/26/2011 Offsite Soil or Groundwater Disposal Approved ADEC held a teleconference with ChemTrack and AIH representatives in a.m. and followed up with email stating that approval is granted for transport of the soil for which lab results and silica gel evaluation have been found to be acceptable by DEC, with the condition that the consultant identify in the field during a site visit with DEC staff the stockpiled soil for which lab issues have not yet been resolved (identified by Chemtrack as soil sampled under work order AUG003). For stockpiles approved for transport by DEC, loading and transport can begin at any time. Soil not yet transported offsite for use at Justin Green property is that reported in data submitted on July 18, 19 and 25, 2011 (and associated missing data supplied later). Eileen Olson
7/26/2011 Site Visit Met on site with owner AIH and consultant Chemtrack representatives to verify location and status of stockpiled soil at the site. Eileen Olson
7/27/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved two forms requesting transport of an estimated 75 CY and 350 CY of soil for disposal at the ARL landfill or thermal treatment at ASR, with the choice to be made by ChemTrack or owner representatives. Consultant had previously intended to dispose of the 350 CY at the landfill. Eileen Olson
7/27/2011 Document, Report, or Work plan Review - other ADEC received the requested information for peat samples from work order AUG0032, with review and approval by ADEC chemist for samples 169-172, completing the response to ADEC's requests for information of 7/25 & 26, 2011. Eileen Olson
8/3/2011 Update or Other Action ADEC acknowledged ASR's receipt of 175.54 tons of petroleum-impacted soil delivered on 7/28/2011. The soil corresponds to the transport form approved by ADEC on 7-27-2011 for 75 CY of material. Eileen Olson
8/26/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved two transport and treatment approval forms submitted on 8/25/2011 by ChemTrack, one for 100 CY to be thermally treated at Alaska Soil Recycling (ASR) and the other to dispose of 575 CY at the Anchorage Regional Landfill (ARL). Soil data was received and reviewed on 8/25/2011. Disposal at ARL was approved for 22 stockpiles (223, 225, 226, 229-232, 367, 370, 371, 373-375, 378, 382, 383, 385, 386, 391, 392, 395, 400) containing DRO ranging from 283 - 822 mg/kg. Thermal treatment at ASR was approved for 4 stockpiles (372, 396, 398, 401) containing DRO concentrations ranging from 870 to 1040 mg/kg. (Later AIH opted to thermally treat all 650 CY according to ASR in an email dated 8/31/2011). Eileen Olson
8/31/2011 Offsite Soil or Groundwater Disposal Approved Received and reviewed laboratory analytical results for 400 cy soil with request for transport for thermal treatment for 200 cy and disposal at Highland Road Regional Landfill for 200 cy. Approval granted for transport and treatment/disposal; later the same day AIH amended the request to send all 400 CY to ASR for thermal remediation, and ADEC approved the amended request. Eileen Olson
9/9/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved offsite transport of an estimated 325 CY of soil to Alaska Soil Recycling (ASR) for thermal treatment following review of data package received previous day. Eileen Olson
9/16/2011 Document, Report, or Work plan Review - other ADEC reviewed consultant ChemTrack's “Request to Transport Soils with DRO levels exceeding 250 mg/Kg” dated 9/15/2011. Based on results of past investigations ADEC requested additional information including figures showing the location of the Storm Drain excavation on the site and the location and depths of the samples taken, or if only excavated soil was sampled, the segment of the corridor where the respective stockpiles were excavated, including depth intervals; and the specific location and depth along the excavation corridor where the soil containing high levels of DRO and RRO (that is, 12,000 mg/kg DRO and 13000+ mg/kg RRO) were excavated. Also requested was a narrative including the date(s) the soils were excavated, the depth of the excavation(s), bedding material used (if any) for the storm sewer line, status of construction (is the line installed and the trench closed, etc.); field notes and photographs. Eileen Olson
9/19/2011 Document, Report, or Work plan Review - other ADEC initially granted approval to transport and store but not treat (pending ADEC approval of analytical results) approximately 500 cubic yards of soil excavated from the northwest corner of the property "NW Parking Lot area" shown on a figure received on this date dated 9/17/2011. The figure also shows the storm drain excavation area excavated in June/July 2011 and the location of a soil stockpile with DRO results as high as 12,000 mg/Kg. ASR rescinded its approval to store the soil at the ASR facility but in coordination with ADEC came up with a plan to transport the soil to ASR and have ChemTrack sample it there under an approved plan. The figure includes information that the parking lot area was excavated to a maximum depth of 34 inches. Eileen Olson
9/20/2011 Update or Other Action ADEC acknowledged ASR notification that it received 3,432.13 tons of petroleum impacted soil from the site from August 30 through Sept. 12, 2011. Eileen Olson
9/20/2011 Document, Report, or Work plan Review - other ADEC approved a sampling plan prepared by ChemTrack for 500 cy of soil to be transported to ASR and sampled for solvents and other compounds. Eileen Olson
9/21/2011 Site Visit Staff observed stockpile sampling of soil transported from site to Alaska Soil Recycling yard for thermal treatment. Eileen Olson
9/28/2011 Meeting or Teleconference Held Teleconference between ADEC staff and ChemTrack with followup email sent noting that ChemTrack is visiting the site same date to determine whether additional soil is scheduled to be excavated and requesting a record including photographs of field work. Requested report elements in addition to lab results submitted same date including field notes; the lab QA/QC sheets; a table correlating PID results with lab results; etc. Later this same date ChemTrack informed ADEC that all excavation is complete. Eileen Olson
10/3/2011 Offsite Soil or Groundwater Disposal Approved ADEC approved thermal treatment at ASR (where the soil was transported on 9/20/2011) of approximately 500 CY of contaminated soil following the review of data submitted this date by ChemTrack for all soil. Following additional review of lab results ADEC approved post-treatment analysis for DRO and RRO on 10/10/2011. Eileen Olson
10/19/2011 Update or Other Action ADEC acknowledged ASR's notification that it received 1,457.15 tons of petroleum impacted soil from the site on September 20, 2011. Eileen Olson
11/17/2014 Potentially Responsible Party/State Interest Letter AIH new owner received standard notification of liability for the contamination identified at the Former Auto Salvage Yards site located at 5655 Old Seward Highway in Anchorage. Because you are documented as the current owner and operator of this site, you are identified as financially responsible or liable under AS 46.03.822 (Strict Liability for the Release of Hazardous Substances) for the investigation and cleanup of any hazardous substance contamination that might be present. Eileen Olson
12/29/2014 Update or Other Action ADEC letter to current owner requesting submittal of final report by March 31, 2015 for environmental work done in 2010-2011 during preconstruction, underground utility installation, paving, etc. phases of property development. The letter summarizes ADEC records indicating disposition of soil in 2011 including transport and thermal remediation of 7,126 tons at Alaska Soil Recycling (ASR); disposal of an estimated 925 cubic yards (CY) at the Anchorage Regional Landfill; and off-site transportation of an estimated 3,725 CY of soil with contaminant levels below applicable site cleanup levels, for which ADEC requested the dates and other records documenting soil transport including the quantity of soil transported and the name and address of the property or facility to which the soil was transported. Eileen Olson
3/12/2015 Meeting or Teleconference Held Met with prospective purchaser and consultant to discuss ADEC requirements set forth in 12/29/2014 ADEC letter. Eileen Olson
3/20/2015 Update or Other Action ADEC received a copy of "WORK PLAN FOR ADDITIONAL SOIL AND GROUNDWATER INVESTIGATION ACTIVITIES, 5655 OLD SEWARD HIGHWAY" dated March 20, 2015 and prepared by BGES, Inc. for the Bering Straits Native Corporation, purchaser of AIH. Based on the results presented in the November 2009 Groundwater Characterization Report (see 12/4/2009 database entry), the ADEC requested that four soil borings, with three being completed as monitoring wells be advanced/installed on the subject property to further define the presence of soil and groundwater contamination at the subject property. Eileen Olson
4/2/2015 Document, Report, or Work plan Review - other ADEC letter approving the "Work Plan for Additional Soil and Groundwater Investigation Activities" dated March 20, 2015. ADEC noted that in accordance with the conditions of the February 19, 2009 Record of Decision for the site, ADEC did not require further characterization of soil or groundwater at the site unless it was excavated or otherwise disturbed during site development. All excavated soil was characterized and transported off-site as clean fill or thermally treated. Eileen Olson
8/18/2015 Update or Other Action ADEC received an electronic copy of the "Project Summary Report, Former Auto Salvage Yards 5625 Old Seward Hwy., Anchorage, Alaska, August 2015" prepared by ChemTrack, Inc. Eileen Olson
11/6/2015 Document, Report, or Work plan Review - other ADEC review letter for "Project Summary Report...August 2015" prepared by ChemTrack for former owner AIH. Current owner is Bering Straits Native Corporation. Requesting missing information regarding soil transported off site and legible copies of report attachments. Eileen Olson
11/9/2015 Document, Report, or Work plan Review - other ADEC review letter requesting a groundwater monitoring schedule issued for the BGES report "SITE CHARACTERIZATION ACTIVITIES, May 2015" for work done according to the plan approved 4/2/2015. Work included advancing four soil borings with three finished as monitoring wells MW1A, MW2A and MW3A in April 2015. One soil sample was collected from each boring with analysis for DRO, RRO and BTEX. Soil samples from borings SB1 and SB2, completed as MW1A and MW2A, exceeded the benzene cleanup level (migration to groundwater) of 0.022 with respective results of 0.0529 and 0.303 mg/kg. Monitoring well MW2A was the only well that exceeded contaminant concentrations for any compound, with a result of 0.0108 mg/L benzene compared to the groundwater cleanup level of 0.0046 mg/L. ADEC's letter noted that although the site has retained cleanup complete with institutional controls status, following completion of monitoring and other environmental work that may be required, ADEC expects to issue an addendum to the February 19, 2009 decision document. The addendum will update the decision document by summarizing environmental work done at the site since the decision document was issued, including providing updated information on land use, the conceptual site model (CSM) and contaminant distribution. Eileen Olson
12/15/2015 Update or Other Action ADEC issued a conditional approval letter dated 12/15/2015 for a workplan received on 12/14/2015 for groundwater monitoring prepared by Geosyntec Consultants Inc. Conditions included collecting groundwater monitoring water samples as close as possible to, and within one foot of the soil/groundwater interface (i.e. water table) and recording the depth of the end of the tubing. As noted on page 29 of ADEC’s Draft Field Sampling Guidance, May 2010 the guidance, groundwater samples must be collected as close as possible to the soil/groundwater interface. Eileen Olson
12/21/2015 Document, Report, or Work plan Review - other ADEC approved the "Final Work Plan for Groundwater Monitoring Services" prepared by Geosyntec Consultants Inc. and dated 12/231/2015. The plan was revised to incorporate the conditions listed in ADEC's conditional approval letter dated December 15, 2015 and is approved. Eileen Olson
4/4/2016 Document, Report, or Work plan Review - other ADEC received the Geosyntec "DRAFT First Quarter 2016 Groundwater Monitoring Report 5655 Old Seward Highway, Anchorage, Alaska" for sampling done on 3/10/2016 and that documents ongoing long-term groundwater monitoring at the site. MWA1 contained o-Xylene at a concentration of 0.330J mg/L, exceeding the 2016 groundwater cleanup level that had not yet gone into effect as of the date of the report. MW3A contained 2.88J mg/L DRO and 3.00J mg/L RRO, exceeding the cleanup level for both compounds. Bold Eileen Olson
4/12/2016 Update or Other Action ADEC received a revised report by ChemTrack as requested in review letter dated 11/06/2015: "Project Summary Report, Former Auto Salvage Yards...Revised April 2016." Information requested in the letter has been provided in part but new data is included that appears to have no basis in the file record. Determination is that ADEC cannot rely on the information presented in ChemTrack's report as accurate in several respects including the locations where the soil (consisting of peat, sand/gravel and mixtures of peat and mineral soils) was taken, or which type of soil was transported. ADEC did not, for example, approve transport of any soil to landscaping firms as the criteria set forth for soil that contains anthropogenic DRO could not be assured in a commercial setting (examples - such soil cannot be placed within 100 ft of streams or within the protective radius of a drinking water supply system such as a Class A well.) and no record of such transport was included in the earlier August 2015 summary report received 8/8/2015. The subject 2016 report includes in Table 3, 'Soil Disposition' that 17,123 tons or 12,684 cy of soil was taken to Alaska Trailblazing for landscaping and clean fill on a single day, 9/15/2010, but provides no invoices or other records, all previously requested by ADEC, of such transport. Additionally, ADEC approved transport of 3,375 cy of soil to the Justin Green property, while the ChemTrack reports indicate that only 300 cy were transported to that location. The total tonnage of excavated material transported from the site increased from 22,350 tons as reported in the 2015 summary report to 39,424 tons as reported in the 2016 summary report. In conclusion the record of the transport and fate of the soil excavated at the site is incomplete and/or contradictory. Eileen Olson
5/24/2016 Site Visit Staff visited site during the third groundwater sampling event for monitoring wells MWA1, MWA2 and MWA3, which is the second of the minimum of four quarterly monitoring events requested by ADEC. The first event took place on 4/16/2015, almost a year before the first of the quarterly monitoring events began on 3/10/2016. Eileen Olson
8/30/2016 Update or Other Action Third quarterly monitoring event by Geosyntec took place on this date. Geosyntec notified ADEC on 8/23 that monitoring would take place on this date. Eileen Olson
11/8/2016 Update or Other Action On this date Geosyntec conducted the fourth and last of the minimum of four quarterly monitoring events requested by ADEC. Geosyntec notified ADEC on 11/04 that the monitoring would be done on this date. Eileen Olson
12/21/2016 Document, Report, or Work plan Review - other ADEC received "Draft 2016 Quarterly Groundwater Monitoring Report" prepared by Geosyntec with summarized results for five groundwater monitoring events, with the most recent event on 11/8/2016. Monitoring well MW1A continued to exceed the cleanup level for benzene as it had for the fourth straight monitoring event and exceeded the cleanup level for DRO. Monitoring wells MW2A and MW3A did not exceed groundwater cleanup levels for any compound during the fifth and most recent monitoring event. Compounds tested for were DRO, RRO and BTEX. Eileen Olson
6/14/2018 Institutional Control Compliance Review IC compliance review conducted. Staff changed from Eileen Olson to IC Unit. Kristin Thompson
7/31/2024 Institutional Control Compliance Review IC compliance review completed on this date. An IC reminder letter was e-mailed to the landowner. The next review will be in five 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
Notice of Environmental Contamination
Signed CS Determination

Requirements

Description Details
Groundwater Use Restrictions No groundwater wells shall be installed in the area covered by the institutional controls (the site, which coincides with the property boundary in this case) without prior ADEC approval.
Other The Landowner must notify ADEC prior to any sale or transfer of the property within 60 days of transfer and shall report to ADEC every 5 years to document the status of compliance with the institutional controls.
Maintenance / Inspection Of Engineering Controls The cap shall be inspected annually and maintained as needed to prevent contact with subsurface contaminated soil, and/or infiltration of water and potential leaching of contaminants.
Other ADEC must be notified in advance of the subdivision or replat of the property associated with the institutional controls for this site. The recorded Notice of Environmental Contamination must be included as part of future property transactions and attached to subsequent associated parcels.
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.
Other Standard condition.

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
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Physical Location: 410 Willoughby