| Action Date |
Action |
Description |
DEC Staff |
| 12/12/2000 |
Update or Other Action |
Date of Site Reconnaissance Emmonak Bulk Fuel Farm Assessment Project report. As of 2000, this tank farm was planned to be part of the tank farm consolidation.
Robert Moore, a representative of the Emmonak Corporation stated that there had been a stove oil release at one time in the tank farm, but he did not have any details.
The tanks had been completely removed from the former tank farm location, which was situated approximately 300 to 400 feet from the Yukon River. Based on available information and site observations, seven of the eight tanks were located within two adjacent bermed, lined areas. The eighth tank was situated outside the berm on the south side. There was an approximately 300-foot piping run from the former tank farm to the dispenser/pump house. In the vicinity of the pump house there were some stained soils.
At the time of the site reconnaissance, there were four tanks situated behind the corporation trailer approximately 100 feet from the river. These tanks were plumbed in to the existing pump houses and are being used for dispensing gasoline and diesel fuel to boats and vehicles.
Three hand auger holes were advanced. One sample was sent to the laboratory from the boring which a petroleum odor was noted. The sample, which was collected 4.5 feet bgs from the former tank farm, contained benzene ay 0.134 mg/kg. Based on screening results, elevated levels of contamination may exist where the pipe runs from the tank farm and enters the dispenser building. |
Keather McLoone |
| 4/15/2003 |
Site Added to Database |
Possibly GRO contamination. |
Deborah Williams |
| 4/27/2004 |
Update or Other Action |
Site evaluation funded through TAPL funding. With loss of TAPL funds to Alaska Energy Authority, ADEC will not be able to fund work on the site at this time. Other funding sources will be evaluated as needed. |
Mike Jaynes |
| 7/15/2004 |
Update or Other Action |
File number changed from 2413.42.002 to 2413.38.005 |
Sarah Cunningham |
| 3/14/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Bill O'Connell |
| 2/5/2010 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74332 Former ASTs. |
Keather McLoone |
| 7/9/2012 |
Site Visit |
ADEC performed a site visit on this date. Exact location of Tank Farm footprint could not be determined. One abandoned gas tank was observed at the site with the words "Grant Air" written on the front of the tank. |
Grant Lidren |
| 8/16/2012 |
Potentially Responsible Party/State Interest Letter |
PRP letter sent to the Emmonak Corporation on this date. |
Grant Lidren |
| 9/4/2012 |
Meeting or Teleconference Held |
ADEC had a teleconference with the Emmonak Corporation on this date. The Corporation has retained Rural AK Fuel Services as its consultant and a site visit evaluation is planned this summer. |
Grant Lidren |
| 4/25/2013 |
Document, Report, or Work plan Review - other |
Site investigation was conducted at this site in 2012. Seven test pits were excavated around the former tank farm both inside and outside of the diked areas, and one test pit was excavated at the former pump house Soil samples were collected from the surface to the bottom of the test pits, screened in the field with a PID, and the sample with the highest PID reading was submitted for analysis of DRO, GRO, RRO, and BTEX. Two samples were also analyzed for PAHs. At the former tank farm impoundments, DRO was detected up to 2,140 mg/kg in a sample from 7 feet bgs in Test Pit 2, which was excavated just south of the eastern impoundment. Further delineation in this area was impractical due to the presence of a steep bluff, which drops off to an apparently ephemeral slough that is connected to the Yukon River. Benzene was detected up to 1.18 mg/kg in a sample from 4 feet bgs in Test Pit 4 just north of the eastern impoundment. Test Pit 5 in the western impoundment did not contain contaminants above cleanup levels. At the former pump house, the soil sample from 6 feet bgs contained DRO up to 284 mg/kg. |
Bill O'Connell |
| 4/25/2013 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74332 Former ASTs. |
Bill O'Connell |
| 6/25/2013 |
Update or Other Action |
Date of letter sent to Emmonak Corporation stating that an investigation of the pipeline connecting the tank farm to the pumphouse had not yet been conducted. |
Keather McLoone |
| 8/16/2016 |
Update or Other Action |
Request for site characterization letter sent on this date. The site is not eligible for closure until the pipeline connecting the tank farm to the dispenser has been investigated for probable contamination. Site Characterization work plan is due October 17, 2016. |
Lisa Griswold |
| 8/24/2016 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74332 Former ASTs. |
Lisa Griswold |
| 10/7/2016 |
Document, Report, or Work plan Review - other |
ADEC reviewed the Emmonak Corporation Tank Farm Site Characterization Work Plan ADEC File No. 2413.38.005. The plan describes characterization activities to determine the nature and extent of contamination around the pipeline that connected the dispenser to the tank farm, areas previously not explored with test pits in 2013, soil at the soil/water interface, and if appropriate, groundwater. ADEC conditionally approved of the plan contingent upon: the use of a prepack well and positive pressure pump; the report including a conceptual site model. |
Lisa Griswold |
| 5/11/2017 |
Update or Other Action |
Letter sent to RP notifying them that project management was being transferred to Rodman and that the site characterization report should be sent to Rodman for review. |
Lisa Griswold |
| 5/11/2017 |
Update or Other Action |
Site transferred to Rodman |
Lisa Griswold |
| 11/29/2017 |
Site Characterization Report Approved |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) reviewed the “Emmonak Corp. Former Tank Farm Site - Site Characterization Report” (report) dated August 2017 for the Emmonak Corporation Tank Farm site in Emmonak, AK. The report was submitted via email on October 11, 2017 by Restoration Science & Engineering, LLC (RSE). The described field effort was conducted on June 13 & 14, 2017 and generally consisted of field-screening with a photo-ionization detector (PID), advancing test pits, collecting soil and groundwater samples for laboratory analysis, and managing investigation-derived waste (IDW).
|
Amy Rodman |
| 3/29/2018 |
Site Characterization Workplan Approved |
ADEC approves work plan. The work plan was submitted via email on March 2, 2018 by Restoration Science & Engineering, LLC. Proposed activities generally consist of excavation and landfarming of contaminated soil, field-screening with a photo-ionization detector, collecting soil samples and groundwater or surface water (hyporheic zone) sampling for laboratory analysis. |
Amy Rodman |
| 8/12/2019 |
Site Characterization Report Approved |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) reviewed and approved the “Emmonak Corp. Former Tank Farm Site - 2018 Corrective Actions Report” (report) dated February 2019 for the Emmonak Corporation Tank Farm site in Emmonak, AK. The report was submitted via email on July 30, 2019 by Restoration Science & Engineering, LLC (RSE). Field work was conducted on August 21-25 and September 11-13, 2018. Site corrective and characterization activities generally consisted of field-screening soil with a photo-ionization detector (PID), excavating soil for landfarming purposes, collecting soil and groundwater samples for laboratory analysis, and managing investigation-derived waste (IDW). Work plan to propose landfarming maintenance is due by September 30, 2019. |
Amy Rodman |
| 11/19/2019 |
Site Characterization Workplan Approved |
ADEC has reviewed and approved the work plan (Plan) titled, “Emmonak Corporation Tank Farm Landfarm Maintenance Work Plan: ADEC File No. 2413.38.005” for the Emmonak Corporation Former Tank Farm site in Emmonak, Alaska, dated November 12, 2019. The Plan was submitted via email on November 12, 2019 by Restoration Science & Engineering, LLC (RSE). Proposed 2020 landfarm activities include two fertilizer applications, collecting soil samples for field-screening and for laboratory analysis of diesel range organics, gasoline range organics, benzene, toluene, ethylbenzene, total xylenes, and polyaromatic hydrocarbons. |
Amy Rodman |
