| Action Date |
Action |
Description |
DEC Staff |
| 7/11/1990 |
Update or Other Action |
(Old R:Base Action Code = FI - Field Inspection (General)). Mawson visited the site of the old abandoned fuel tank farm and found that fuel was leaching from the site into the Smith River on the south side of the Deering spit and that fuel contaminated soils were evident. Estimated 500 - 6000 cubic yards of soil. Recommended removal of soil and replacement with clean fill and revegetation. |
Former Staff |
| 10/26/1990 |
Interim Removal Action Approved |
(Old R:Base Action Code = REM - Removal / Excavation). Excavated approximately 1000 cubic yards of soil according to Romenesko. Took 3 samples and analyzed for TPH. All below 100 ppm TPH. Soils hauled to landfill. |
Former Staff |
| 12/5/1990 |
Site Added to Database |
Fuel spillage and contamination. |
Former Staff |
| 12/28/1990 |
Site Closure Approved |
Site closed according to R. Romenesko (DEC Nome). |
Former Staff |
| 6/23/2006 |
Update or Other Action |
Site status changed from Closed to Active based on new information received on June 20, 2006 contained in Geotechnical Exploration report by Duane Miller & Associates dated February 21, 2006. Report notes petroleum vapors encountered in test holes drilled in January 2006. Three test holes were advanced as geotechnical exploration in anticipation of installation of a new 400,000 gallon water tank. PID readings from TH #1, directly adjacent to the old power plant (skid mounted building), ranged from 78 ppm in the surface soil to 791 ppm in the soil layers just above water level (~13 ft bgs). The log also noted diesel odor. TH #2 PID readings were less than 10 ppm and none were recorded for TH #3. |
Mitzi Read |
| 6/27/2006 |
Update or Other Action |
ADEC Village Safe Water (VSW) proposes installing a new 400,000 gallon water storage tank in the area of the previous spill site. According to the file, in 1990, approximately 1000 cubic yards of contaminated soil were excavated and hauled to the landfill. Three soil samples were collected but the locations were not defined. ADEC is requiring that VSW install at least three sand point wells in the area to help define the extent of the groundwater contamination in the area. The sand point wells were chosen because they could be installed using the local backhoe. The groundwater will be analyzed for DRO and BTEX and PAHs from the source area. |
Deborah Williams |
| 5/16/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Keather McLoone |
| 7/15/2008 |
Update or Other Action |
Email request to VSW program requesting update on status of wells. Received an as built indicating location of wells. Wells were not sampled because the pipe was driven to 18 feet and did not encounter groundwater. |
Keather McLoone |
| 11/3/2014 |
Update or Other Action |
No new information or changes in status for this site. |
Keather McLoone |
| 5/21/2015 |
Update or Other Action |
File review completed on this day; no new information available. |
Joshua Barsis |
| 10/14/2015 |
Potentially Responsible Party/State Interest Letter |
Letter sent to RP on this day with brief site history and request for contact. Requested work plan by February 1, 2016. |
Joshua Barsis |
| 1/29/2016 |
Update or Other Action |
Reviewed letter from responsible party, dated January 26, 2016. ADEC responded with a letter dated January 28, 2016. ADECs letter included summary of RP letter, updated site history, aerial image research, and a request for work plan by April 1, 2016. UPDATED SITE HISTORY:The Deering Old Bulk Fuel Farm site is located on Lot 32 of the City of Deering Subdivision. Lot 32 is located roughly 500 feet south of the Front Street and Inmachuk Road intersection, and on the south side of Smith Creek and west side of the road. At least four bulk fuel tanks were used at the site from 1986 until 1988, when they were decommissioned and removed.
Contamination was originally identified in 1990 during a joint ADEC and NANA site visit. The goal of this particular site visit was to determine if contamination was present from the former NANA bulk fuel tank farm. Using a shovel to dig shallow test pits, ADEC noted visual and olfactory evidence of contamination that appeared to be leaching into the Smith River on the south side of the Deering spit. It was estimated that up to 6,000 cubic yards of soil could be impacted by fuel releases. Following the site visit, ADEC requested that NANA perform a site assessment and/or cleanup action to remove the contamination soil.
A letter from NANA, dated December 21, 1990, stated “During the week of September 20th this contaminated soil was removed and hauled and spread at the dump site. Upon completion of this effort, three soil samples were taken and sent to Chemical and Geological Laboratories of Alaska for analysis. The results of which are attached.” Analytical results revealed minimal contamination below ADEC cleanup levels and the site was closed. Please note that several issues exist with this letter and the data; mainly a lack of reporting and details. For example, a report should have been received that included details on the limits of the excavation, and sample locations, depths, and methodology.
Later in January 1993, a geotechnical soil investigation was performed at this site to assess the suitability for a 500,000-gallon water tank. Results of the investigation revealed that extractable petroleum hydrocarbons (EPH) were present in the surface and shallow subsurface soils up to 2,550 mg/kg. According to our records, the 500,000-gallon water tank was not installed.
This site is currently listed as active in the ADEC Contaminated Sites Database.
|
Joshua Barsis |
| 5/17/2016 |
Document, Report, or Work plan Review - other |
Reviewed the work plan titled Site Assessment at Lot 32, Old Bulk Fuel Tank Farm, and dated for May 2016. Field screening and analytical soil samples will be collected from seven test pits, and surface water samples will be collected from three surface water bodies surrounding the former tank farm. The objective of this field effort is to characterize the lateral and vertical extent of contamination. |
Joshua Barsis |
| 11/3/2016 |
Document, Report, or Work plan Review - other |
Reviewed the Environmental Site Assessment Report at Lot 32, Old Bulk Fuel Tank Farm, dated October 2016. The field effort was performed in August 2016 and included the collected of soil and water samples from eight test pits (Test Pits 1 through 8), three monitoring wells (MW01 through MW03), and three surface water bodies (SW02 through SW04). Wells MW01, MW02, and MW03 were installed in Test Pits 5, 1, and 2, respectively. All samples were analyzed for one or more of the following: gasoline range organics (GRO), diesel range organics (DRO), benzene, toluene, ethylbenzene, and xylenes (BTEX), and polycyclic aromatic hydrocarbons (PAHs).
Soil samples collected from Test Pits 1 through 4, 6, and 7 did not exhibit contaminant results above Method One Table A2 or Method Two Table B1 cleanup levels. Concentrations of DRO were present in Test Pits 8 and 5 at 4,670 mg/kg and 2,200 mg/kg, respectively, both of which exceed the Table A2 cleanup level of 500 mg/kg. The water sample collected from MW01 exhibited concentrations of DRO at 20.3 mg/l and benzene at 0.00589 mg/l, and was the only well to have contaminant concentrations present above Table C groundwater cleanup levels. All samples collected from surface water were below groundwater cleanup levels and AWQS.
The contamination appears to be bounded by test pits and monitoring wells to the north and west, and partially bounded to the south by the surface water body. The contamination is not bounded to the east, and potentially exists under the Deering Airport Road. Results of the investigation suggest that contamination is limited to the soil and pad pore-water surrounding Test Pits 8 and 5. ADEC requested a work plan for additional delineation to the south and east. |
Joshua Barsis |
| 2/1/2017 |
Document, Report, or Work plan Review - other |
Reviewed the work plan titled Site Assessment at Lot 32, Old Bulk Fuel Tank Farm, dated January 2017. Proposed activities mainly consist of soil sampling, shovel sheen testing, surface water sampling, and groundwater sampling. Activities will be completed in an effort to delineate soil and groundwater contamination at this site.
|
Joshua Barsis |
| 1/2/2018 |
Document, Report, or Work plan Review - other |
Reviewed the 2017 Site Assessment Report, dated December 2017. Field activities were performed in September 2017 and consisted of collecting soil samples from five new test pits, collecting water samples from two new temporary monitoring wells and four existing wells, collecting surface water samples from the tundra pond at the southern edge of the site, and completing 6 shovel sheen tests. Results of the investigation concluded that the extent of soil contamination has been delineated, and that the extent of groundwater contamination can be inferred as not impacting the surrounding surface water and not migrating beyond the road to the east. This site will be evaluated for closure. |
Joshua Barsis |
| 1/22/2018 |
Cleanup Complete Determination Issued |
Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action will be required unless new information becomes available that indicates residual contaminants may pose an unacceptable risk. |
Joshua Barsis |
