| Action Date |
Action |
Description |
DEC Staff |
| 11/16/1994 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 76333 ADD; Site added to database. |
Former Staff |
| 11/16/1994 |
Site Added to Database |
|
Former Staff |
| 1/5/1995 |
Release Investigation |
RELR; Release Investigation Review. |
Former Staff |
| 1/5/1995 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; LUST Corrective Action Underway. |
Former Staff |
| 11/20/1997 |
Update or Other Action |
ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: HUB OF ALASKA |
Jim Hayden |
| 11/28/1997 |
Update or Other Action |
HUB of Alaska's Jasper Hall, states the soil was taken out and clean. |
Jim Hayden |
| 5/31/2005 |
Update or Other Action |
The file cannot be located. The 20 November 1997 "Intent to Cost Recover" letter was scanned and is attached to this database, but no other documents are available for review. Former DEC project manager unknown. |
Lynne Bush |
| 5/9/2006 |
Update or Other Action |
Project management transferred from Bush to Nuechterlein. The file is still missing. |
Aggie Blandford |
| 9/16/2010 |
Meeting or Teleconference Held |
A personal communication with Jerry Lefemann of HUB of Alaska on this date indicates the HUB obtained fuel from ASTs prior to 1994. On 6/1/1994, USTs were installed, which are currently in use and in compliance with the IPP UST Program. Therefore, any potential leaks and spills prior to 6/1/1994 are assumed to be from non-regulated ASTs. The drinking water well on property is not in use due to the high amount of iron in the water causing drinking water and corrosion issues. Instead, the Hub hauls drinking water on site. |
Grant Lidren |
| 9/11/2017 |
Document, Report, or Work plan Review - other |
Between October 9-11, 2017 two 12,000 gallon gasoline USTs and on 12,000 gallon diesel UST and their associated piping were removed. A release was identified at the middle diesel dispenser on the fuel island closest to the building. At the dispenser areas up to 4,630 mg/kg GRO, 2,330 mg/kg DRO, 52.7 mg/kg benzene, 137 mg/kg ethylbenzene, 341 mg/kg toluene, 656 mg/kg xylenes, 243 mg/kg 1,2,4-trimethylebenzene, 67.5 mg/kg 1,3,5-trimethylbenzene, 17.5 mg/kg cumene, 27.3 mg/kg naphthalene, 9.65 mg/kg 1-methylnaphthalene, 14.6 mg/kg 2-methylnapthalene, and 9.81 mg/kg lead. Contamination over migration to groundwater cleanup levels was also identified at the west dispenser (1,450 mg/kg DRO and 0.0691 mg/kg naphthalene) and the middle gasoline tank (0.371 mg/kg benzene, 8.23 mg/kg xylenes, 4.45 mg/kg 1,2,4-trimethylbenzene, and 0.152 mg/kg naphthalene). The tank excavation samples were collected at 12 feet below ground surface when the groundwater was encountered. 800 cubic yards (cy) of soil was excavated as part of this work, of which 200 cy was segregated as obviously contaminated. The 600 cy of potentially clean excavated soil was sampled but placed back in the excavation before getting the sample results, those soils had 671 mg/kg DRO in one sample. |
Robert Weimer |
| 10/20/2017 |
Document, Report, or Work plan Review - other |
DEC approves revised October 20, 2017 Interim Removal work plan. The work plan proposes to remove contaminated soil at the first dispenser island and up to 300 cubic yards at the second dispenser island. Confirmation sidewall and base samples will be collected from the two excavations. The excavated soil will be sampled and placed on a liner and covered. |
Robert Weimer |
| 10/21/2017 |
Document, Report, or Work plan Review - other |
On October 21, 2017 a water sample was collected from the on-property well was analyzed for VOCs and DRO and it had 19.4 ug/l benzene and 2.82 ug/l naphthalene, with the other compounds below Table C cleanup levels. A well search conducted identified an active water well about a mile from the gas station property (opened ended steel cased well drilled to 103' depth with static water at 55'), the only other well identified was the well on the gas station property that reportedly only supplies water to the toilets. |
Robert Weimer |
| 10/22/2017 |
Document, Report, or Work plan Review - other |
Between October 21-22, 2017 additional contaminated soil was excavated from the side of two dispenser areas that had contamination identified as remaining above migration to groundwater cleanup levels. 300 cubic yards of contaminated soil was excavated. The excavation extended to 8' to 9' below ground surface (bgs), with one test pit extending to groundwater at 12' bgs. After they finished excavating bottom and sidewall samples were collected. The remaining contamination in this excavation area was up to 3,240 mg/kg GRO, 2,890 mg/kg DRO, 46.6 mg/kg benzene, 116 mg/kg ethylbenzene, 369 mg/kg toluene, 462 mg/kg xylenes, 127 mg/kg 1,2,4-trimethylebenzene, 0.832 mg/kg 1,2-dichloroethane, 35.3 mg/kg 1,3,5-trimethylbenzene, 23.7 mg/kg cumene, and 50.1 mg/kg naphthalene.
At the dispenser area soils with up to 4,630 mg/kg GRO, 2,330 mg/kg DRO, 52.7 mg/kg benzene, 137 mg/kg ethylbenzene, 341 mg/kg toluene, 656 mg/kg xylenes, 243 mg/kg 1,2,4-trimethylebenzene, 67.5 mg/kg 1,3,5-trimethylbenzene, 17.5 mg/kg cumene, 27.3 mg/kg naphthalene, 9.65 mg/kg 1-methylnaphthalene, 14.6 mg/kg 2-methylnapthalene, and 9.81 mg/kg lead was not excavated as part of this work and still remains in place.
|
Robert Weimer |
| 6/13/2018 |
Document, Report, or Work plan Review - other |
DEC approves the May 25, 2018 "2018 Landfarm Treatment of Sampling Work Plan". The plan proposes to construct and operate a lined landfarm on the property to treat the 500 cubic yards of contaminated soil generated during the 2017 UST removal work. |
Robert Weimer |
| 4/11/2019 |
Document, Report, or Work plan Review - other |
Email update from the consultant (EMI) that the landfarm treatment cell has been constructed and the soil in the cell was turned over several times in 2018 and they plan to continue the treatment in 2019, with possible confirmation sampling in 2019 once fuel odors in the soil are gone. |
Robert Weimer |
| 5/5/2020 |
Potentially Responsible Party/State Interest Letter |
ADEC staff sent a Potentially Responsible Party letter to owners of the Hub, in Glennallen. |
Laura Jacobs |
| 5/6/2020 |
Document, Report, or Work plan Review - other |
ADEC staff issued comments regarding the 2018 and 2019 Landfarm Treatment and Sampling Letter Report, and requested additional work to continue natural attenuation of petroleum in landfarm soils by tilling. Also, ADEC staff requested a release investigation and site characterization to follow documentation of petroleum releases to soils and potentially groundwater under the three underground storage tanks that were removed. |
Laura Jacobs |
| 9/16/2020 |
Document, Report, or Work plan Review - other |
The revised work plan for site characterization and landfarm management was reviewed. Approval was issued upon the condition that chlorinated compounds would be included in the laboratory analyses of soils. |
Laura Jacobs |
| 2/18/2022 |
Meeting or Teleconference Held |
DEC met with the consultant leading work at this site to discuss water use on site, location of utilities, and possible future filtration requirements. Report review is in progress, and will be completed shortly. |
Laura Jacobs |
| 7/20/2022 |
Document, Report, or Work plan Review - other |
A work plan submitted on June 14, 2022 was reviewed for continued site characterization work. Based upon 2021 sample results, and approval by DEC, the top 12 inches of landfarmed soils will be removed from the landfarm and stockpiled for use on site, followed by additional tilling of the remaining soils. Additional borings, soil samples and well installation will continue the site characterization work. The on-site supply well will have a water treatment system installed so that water used for toilets will be free of contaminants of concern. DEC approved the work plan with the requirement of the treated water be sampled from the supply well. |
Laura Jacobs |
| 8/10/2022 |
Document, Report, or Work plan Review - other |
DEC approved the second version of "The Hub of Alaska Site Characterization Report - Revision 2" received by our office February 7, 2022. |
Laura Jacobs |
| 6/1/2023 |
Document, Report, or Work plan Review - other |
Site characterization efforts continued in September 2022. The report "The Hub of Alaska Additional Site Charactetrization Report" was received by DEC in February of 2023. The extent of the contamination in groundwater has yet to be determined as exceedances of groundwater cleanup levels are present in the most down-gradient well. A filtration system was provided to the RP to ensure the wastewater leaving the site to the community sewage lagoon did not continue to contaminate the waters moving offsite. The system has yet to be installed over one year later. The landfarmed soils that were excavated from the UST excavation pit have not been maintained, or covered over the winters and it is not known currently if soils have been reused. |
Laura Jacobs |
| 7/31/2023 |
Document, Report, or Work plan Review - other |
DEC reviewed the 2022 Site Characterization Report submitted to our office February 27, 2023. Comments were sent with several required site characterization efforts to be completed in the coming sample effort. Continued efforts need to be made to further delineate the contamination remaining in soil and groudwater. Additional monitoring wells must be installed to determine the extents of groundwater contamination downgradient of the previous underground storage tank area, dispenser island, and piping runs. A monitoring well should be located close to the non-potable water well. Because of remaining contaminants in the soil that are considered volatile, DEC is requiring a vapor intrusion study of the building. The log describing the water sample effort described the purged water as having a septic odor and was an odd color. DEC is requesting an effort to determine where the septic lines are located on the site. DEC also requested a well survey for horizontal and vertical locations of wells and continue to determine groundwater flow direction as the groundwater was substantially higher in September 2022 versus the April 2021 effort, and the flow direction had changed from east to south-southwest. |
Laura Jacobs |
| 10/10/2024 |
Document, Report, or Work plan Review - other |
DEC approved the final Hub of Alaska 2024 Field Activities Work Plan, detailing additional site characterization work that will be performed Fall of 2024. |
Livia Bracker |
| 6/2/2025 |
Document, Report, or Work plan Review - other |
DEC approved DOT's Glenn/Richardson Highway Right-of-Way Reconciliation Soil Stockpile Construction and Sampling Work Plan, detailing the plan for construction and sampling of a soil stockpile generated during the construction of a wayside facility near the site. |
Livia Bracker |
| 3/5/2026 |
Document, Report, or Work plan Review - other |
DEC approved the Additional Site Characterization Work Plan Addendum. Field work is planned for Spring 2026. |
Livia Bracker |
