Site Report: FAA Big Delta Station (Regulated Tanks)
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
LUST site inferred due to treatment methods discussed. Closure Notice 5/19/97, FacID (865).LUST site inferred due to treatment methods discussed.
The remote center air/ground communications (RCAG) Facility was located approximately 4,200 feet east of the access road entrance to the Range and Peripheral Area Tract. It consisted of Building 403 and adjacent area. Eight feet north of the northeast corner of the former Building 403 laid a 500-gallon underground storage tank (UST) (6-c-001). This UST contained diesel fuel and was associated with emergency generator operations.
The very high Omni-directional range/tactical air navigation station (VORTAC) facility was located on the west side of Jarvis Creek approximately 1,800 yards northeast of the Quarters Area Tract. It consisted of Building 401 and the adjacent area. A 1,000-gallon UST (6-b-001) was located 5 feet south of the southwest corner of the building. The UST supplied diesel and formerly gasoline to the emergency generator.
Characterization and Cleanup Activities
During July 1997, these USTs were decommissioned by Montgomery Watson at the FAA Big Delta Station. The UST (6-c-001) at the RCAG facility was removed and the final excavation dimensions were approximately 14 feet long, 9 feet wide and 8 feet deep. The bottom of the tank was approximately 6.5 feet below ground surface. Approximately 37 cubic yards of fuel-contaminated soil was excavated and transported to ESI in Fairbanks for thermal remediation. Eight field- screening samples were collected from the limits of the excavation. Soil beneath the fuel supply and return piping was removed as part of the excavation. Four confirmation soil samples were collected from the base of the excavation and they were analyzed for diesel range organics (DRO) and benzene, toluene, ethylbenzene, and xylenes (BTEX). All the soil samples met ADEC cleanup levels. No confirmation soil samples were collected from the sidewalls of the excavation but field-screening data from the sidewalls did not indicate any contamination.
The UST (6-b-001) at the VORTAC facility was removed and the final excavation dimensions were approximately 15 feet long, 9 feet wide and 7 feet deep. The bottom of the tank was approximately 7 feet bgs. Approximately 0.5 cubic yards of fuel-contaminated soil was excavated from the excavation. A total of 7 field-screening samples were collected from the sidewalls and the base of the excavation. Three confirmation soil samples and one duplicate were taken from the sidewall and base of the excavation and analyzed for gasoline range organics (GRO), DRO, BTEX and lead. All the sample results were below ADEC cleanup levels.
Action Information
Contaminant Information
| Name |
Level Description |
Media |
Comments |
| DRO |
< Method 2 Most Stringent |
Soil |
|
| DRO |
< Method 2 Most Stringent |
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.
