Site Report: North Delta Tank Farm
| Site Name: | North Delta Tank Farm |
|---|---|
| Address: | Jct. AK & Richarson Hwys., Delta Junction, AK 99737 |
| File Number: | 141.38.001 |
| Hazard ID: | 1705 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.035901 |
| Longitude: | -145.730641 |
| Horizontal Datum: | WGS84 |
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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
The Site held the North Tank Farm for the Fort Greely Fuel Distribution System and was operated by the U.S. Army between 1954 and 1987. The site contained above ground fuel tanks, a fuel pump station and truck fill stands. In 1999, approximately 4,300 cubic yards of petroleum contaminated soil was removed from the site and transported to Ft. Greely for treatment. An additional 830 cubic yards of petroleum contaminated soil was removed in 2006. Confirmation sampling results for gasoline and diesel range organics, benzene, toluene, and ethylbenzene were detected above the migration to groundwater cleanup level but below direct contact and inhalation cleanup levels. A limited volume of contaminated soil remains near a utility pole that could not be excavated due to stability concerns. Depth to groundwater at the North Delta Tank Farm is approximately 40 feet. Groundwater samples were collected from 3 monitoring wells in 2009 and 2010. Contaminants were not detected above the cleanup levels in groundwater. This site received a Cleanup Complete designation on September 2, 2015, subject to the following standard conditions: 1. Any proposal to transport soil or groundwater off-site requires ADEC approval in accordance with 18 AAC 75.325. A “site” [as defined by 18 AAC 75.990 (115)] means an area that is contaminated, including areas contaminated by the migration of hazardous substances from a source area, regardless of property ownership. 2. Movement or use of contaminated material in a manner that results in a violation of 18 AAC 70 water quality standards is prohibited.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 6/30/1992 | Site Added to Database | Suspected spills, tank or piping leaks. | Former Staff |
| 6/30/1992 | Update or Other Action | (Old R:Base Action Code = FI - Field Inspection (General)). Site investigated for subsurface contamination. Samples from NM tank and fill stand area showed 1600+ ppm contamination at 1 foot depth. Army has been advised of situation and asked to respond by 8-1-92. | Former Staff |
| 12/30/1992 | Site Ranked Using the AHRM | Initial ranking. | Former Staff |
| 1/24/1994 | Site Ranked Using the AHRM | Reranked. Previous score = 34. | Former Staff |
| 5/16/1994 | Update or Other Action | (Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter to Cristal Fosbrook requesting update/confirmation of information concerning the contaminated site. | Jeff Peterson |
| 11/17/2000 | Update or Other Action | Interim removal completed summer of 1999 without ADEC approval. Report not yet received by DEC. | Greg Light |
| 12/27/2000 | Site Ranked Using the AHRM | Changed Observed Environmental Impact Value from 3 to 0 and consequently changed Surface Environments Value from 2 to 3. Still a High Priority site. | Former Staff |
| 12/27/2000 | Update or Other Action | Army has not submitted a report on the interim removal as of this date. | Greg Light |
| 3/2/2001 | Update or Other Action | File number corrected from 120.38.001 to 141.38.001. | Mitzi Read |
| 11/7/2002 | Update or Other Action | Report received from Army under DEC review. | Greg Light |
| 1/15/2003 | Update or Other Action | Army conducted soil removal in 2000 but diesel contaminated soil remains on site. DEC has requested the Army to complete cleanup. | Greg Light |
| 6/1/2005 | GIS Position Updated | Updated site location with handheld GPS Reading. | Mike Jaynes |
| 6/27/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Deborah Williams |
| 10/12/2009 | Site Characterization Workplan Approved | Staff reviewed and approved the document titled “2009 North Delta Tank Farm Work Plan: Well Installation, Well Development, and Well Sampling” prepared for the US Army Space and Missile Defense Command (SMDC) by ASTS Incorporated. The workplan was revised based on comments provided in a letter dated September 9, 2009. This work plan addresses the installation of Groundwater Monitoring Wells at the former North Delta Tank Farm located in Delta Junction, Alaska. Groundwater monitoring is being implemented to assess potential groundwater contamination due to past storage of Aviation-gas and Jet Propellant-4 (JP-4) on the site by the US Army. | Tana Robert |
| 6/22/2010 | Document, Report, or Work plan Review - other | Commented on 2009 North Delta Field Activities Report summarizing the installation, development, and sampling of 3 groundwater monitoring wells. No final report will be prepared. Additional sampling is planned for 2010 and one report will be written incorporating both sampling events. | Melody Debenham |
| 9/13/2010 | Site Characterization Workplan Approved | Approved groundwater monitoring work plan for DRO, GRO, BTEX, and EDB. | Melody Debenham |
| 2/21/2012 | Site Characterization Report Approved | Approved the final 2009/2010 North Delta Tank Farm Groundwater Investigation Report describing the installation and sampling of 3 groundwater monitoring wells at this site. Three rounds of groundwater sampling were conducted, in November 2009, July 2010, and October 2010. Groundwater samples were analyzed for gasoline and diesel range organics (GRO and DRO), benzene, toluene, ethylbenzene, and xylenes (BTEX), and ethylene dibromide (EDB). Results from all 3 sampling events are either below the applicable cleanup levels or non-detects. | Melody Debenham |
| 8/6/2015 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 72683 Former Tank Farm. | Melody Debenham |
| 9/3/2015 | Cleanup Complete Determination Issued | Melody Debenham |
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. | |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) |
No associated sites were found.