Site Report: Sourdough Outfitters, Block 5, Lots 1A & 1B
| Site Name: | Sourdough Outfitters, Block 5, Lots 1A & 1B |
|---|---|
| Address: | Bettles, Alaska; Bettles, Airportaka Bettle Trading Post, Trading Post, Bettles, AK 99726 |
| File Number: | 890.26.009 |
| Hazard ID: | 24436 |
| Status: | Cleanup Complete |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 66.919731 |
| Longitude: | -151.517150 |
| 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
Bettles Airport Lots 1A&1B Block 5 ADOT/PF takes lead, Lessee to do site assessment on lots 1B&1A. 1A had 10000-gal AST removed in '80s. Site Assessment conducted 6/95.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/20/1994 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 77841 ADD; | Former Staff |
| 12/20/1994 | Site Added to Database | Former Staff | |
| 6/15/1995 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | LCAU; ADOT/PF requests via telephone that DEC approve landfarming of contaminated soil. DEC gives verbal approval followed by ADOT/PF 6/23/95 request for written approval. Written DEC approval faxed 6/23/95. | Former Staff |
| 3/5/1997 | Underground Storage Tank Site Characterization or Assessment | SA1A; Reviewed 7/11/95 site assessment received by DEC 7/17/95 on three USTs removed 8/91 and one AST removed in early 1980's. Prelim. analyses of soil during 6/14/95 site assessment(after the '91 removals)indicated,1,010 ppm DRO, 6,593 ppm GRO and 818 ppm BTEX. Approx. 25-50 cu. yds. contam. soils excavated and landspread. | Former Staff |
| 3/8/1997 | Leaking Underground Storage Tank Corrective Action Underway | LCAR; Reviewed 10/9/96 soil remediation report received by DEC 10/11/96. Soils below ADEC cleanup levels after landspreading period 6/95-8/96. No bottom liner used. Contrary to RPCON's written plan,top liner omitted. Final sampling did not include depth below surface area where soils sat for >a yr. | Former Staff |
| 11/20/1997 | Update or Other Action | ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: DAVID KETSCHER | Former Staff |
| 9/10/1999 | Underground Storage Tank Site Characterization or Assessment | Received SA report from operator consultant for investigation and removal of one 25,000 UST that has been in question for several years. Impacts detected, delineated horizontally, but GW and vertical delineation pending. Substantial GW impacts are not anticipated, and adjacent water supply wells will be tested as per consultant. | Former Staff |
| 11/1/2000 | Leaking Underground Storage Tank Corrective Action Underway | Dowl Engineers performed a corrective action for the UST site at Lot 1A. Approximately 235 cubic yards of contaminated soil were excavated and stockpiled. Confirmation soil samples from the base of the tank pit area or the adjacent surface spill area were not collected. Drinking water well samples were collected from the Bettles Lodge and Sourdough Outfitter's lodge. A water sample was also collected from MW-4 located at Holly Hollows Cabin property located south of the former UST location. Depth to water was 17.86 feet. The sample results from all three wells were non-detect for GRO, DRO and BTEX. Dowl concluded that the concentration of petroleum remaining in the soils, as determined by PID field screening, of the former UST location is above current ADEC cleanup levels. Dowl recommended further investigation of petroleum contaminated soil was necessary. | Deborah Williams |
| 10/1/2001 | Update or Other Action | Dowl collected 54 field screening soil samples from the former tank pit. Field screening sample locations were taken at a depth of 3-foot, 6-foot, and the intersection of the sidewall and the bottom of the excavation and throughout the bottom of the excavation. Confirmation soil samples were gathered from the north sidewall at E-3, J-3, and C-6; and at the south sidewall at T-6 as determined from field screening results. A 10-mil, reinforced liner was placed in the former tank pit and the contaminated soil from the stockpiles were then transferred and placed in the tank pit area. A 10-mil stockpile cover liner was placed over the entire tank pit area before applying a cap of imported gravel. According to the report, there are gaps of information from the characterization of the tank pit. | Deborah Williams |
| 1/28/2004 | Update or Other Action | Transferred DEC staff lead from John Carnahan | Cynthia Pring-Ham |
| 1/10/2005 | Update or Other Action | File transferred to Fairbanks office for project management shift to regional staff. | Bruce Wanstall |
| 5/3/2007 | Exposure Tracking Model Ranking | Initial ETM ranking complete | Evonne Reese |
| 7/7/2008 | Conditional Closure Approved | Former Staff | |
| 7/8/2008 | Institutional Control Record Established | Former Staff | |
| 9/8/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 77841 name: UST/stockpile | Neal Everson |
| 5/4/2011 | Institutional Control Compliance Review | IC review conducted, staff changed to IC Unit, and site conditions and ETM ranking considered. | Evonne Reese |
| 5/4/2011 | Institutional Control Record Removed | After an IC review was conducted, it was determined that ICs could be removed from this site due to the ETM ranking results and site conditions meet the 2009 closure policy. | Evonne Reese |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | |
| GRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.