Site Report: Galena AFS/Airport - UST 1578-3
| Site Name: | Galena AFS/Airport - UST 1578-3 |
|---|---|
| Address: | North of the Water Treatment Plant, Galena, AK 99741 |
| File Number: | 860.26.002 |
| Hazard ID: | 25116 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.739800 |
| Longitude: | -156.956300 |
| Horizontal Datum: | NAD83 |
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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
UST 1578-3 was a 1,000-gallon tank that stored gasoline for a standby water pump. It was removed in 1997 and the sampled excavation had benzene and DRO over Method 2 soil cleanup levels. Contaminated soil was used as backfill after pulling the tank. --Updated 2011-- In April 2010 this site was included in a Preliminary Assessment report, and was recommended for additional site characterization. The target analytes for this site are GRO, DRO, RRO, BTEX, PAHs, EDB, 1,2 DCE, and lead. 2010 sampling is close to delineating the nature and extent of contamination at this site. However sample UST15783_GP002 showed a hit of 4170 mg/kg of DRO at 29 ft bgs. During TPT discussions, it was agreed that this site needs additional evaluation.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 11/22/2005 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 77513 1997 tank pull report documented benzene and DRO above Method 2 cleanup levels. Currently negotiating with AF Compliance about past UST removals to see which sites merit further investigation. | Colin Craven |
| 11/22/2005 | Site Added to Database | Former Staff | |
| 11/30/2005 | Update or Other Action | RECKEY has automatically been generated. | Former Staff |
| 8/13/2010 | Site Characterization Workplan Approved | SC Workplan approved | Fred Vreeman |
| 8/13/2010 | Conceptual Site Model Submitted | CSM submitted | Fred Vreeman |
| 9/1/2010 | Site Visit | Site visited | Amanda Loomis |
| 2/15/2011 | Meeting or Teleconference Held | TPT meeting, site discussed | Fred Vreeman |
| 4/1/2011 | CERCLA PA | Preliminary Assessment of site reviewed | Fred Vreeman |
| 6/9/2011 | Site Visit | Site visited | Fred Vreeman |
| 7/11/2011 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 77513 name: autogenerated pm edit - Galena Airport - UST 1578-3 | Amanda Loomis |
| 8/16/2011 | Meeting or Teleconference Held | TRIAD meeting held. Site Discussion and DEC approval of two stepout borings. | Fred Vreeman |
| 10/20/2011 | Meeting or Teleconference Held | TRIAD meeting held. Site data from previous stepouts discussed an unknown DRO source identified to the northeast of the Site. 4 additional stepouts were approved by DEC. | Dennis Shepard |
| 5/10/2012 | Document, Report, or Work plan Review - other | DEC received a Draft Site Characterization report for Site. | Dennis Shepard |
| 7/20/2012 | Document, Report, or Work plan Review - other | DEC provided review comments for the Draft Site Characterization report. The report concluded that subsurface soil beneath and in the immediate vicinity of UST 15783 is contaminated with EDB above migration to groundwater Method Two cleanup levels. The review concluded that EDB contamination is not fully delineated at the Site. | Dennis Shepard |
| 12/31/2012 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Administrative action addition for grant reporting purposes. | Evonne Reese |
| 5/10/2013 | Document, Report, or Work plan Review - other | DEC received a Draft Final Site Characterization results report for the Site. | Dennis Shepard |
| 8/28/2013 | Document, Report, or Work plan Review - other | DEC provided Comments for the Draft Final report. AF has agreed to include a further evaluation of Site UST 1578-3 data as part of the Site Characterization and cleanup at Site B 1812. This will include an evaluation of EDB in the cumulative risk calculation at site B 1812. | Dennis Shepard |
| 9/6/2013 | Meeting or Teleconference Held | A teleconference call was held to discuss the Final resolution of comments for the Site UST 1578-3 Site Characterization report. All issues were resolved and DEC provided verbal approval to Finalize the report. | Dennis Shepard |
| 9/12/2013 | Document, Report, or Work plan Review - other | DEC received the Final Site Characterization report for Site UST 1578-3_B 1812. The report recommends cleanup complete designation for the UST 1578-3. The Air Force has agreed that any residual contamination left on site will be cleaned up concurrent with Cleanup efforts for the adjacent Site B 1812. | Dennis Shepard |
| 10/2/2013 | Cleanup Complete Determination Issued | A cleanup complete determination is appropriate for the UST 1578-3 site. A cleanup complete determination letter has been sent to the Air Force. The Air Force has agreed that any residual contamination left on site will be cleaned up concurrent with Cleanup efforts for the adjacent Site B 1812. | Dennis Shepard |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Ethylene dibromide | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | One soil sample out of 28 samples collected returned a positive result(0.0013 mg/kg)for EDB in soil greater than the table B, Method two, migration to groundwater level (0.00016 mg/kg) but well below human health levels. The residual EDB on site is considered De Minimus. EDB was not detected in Groundwater. |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.