Site Report: Fairbanks Natural Gas, Metro Industrial Airpark
| Site Name: | Fairbanks Natural Gas, Metro Industrial Airpark |
|---|---|
| Address: | 2147/2155/2161 Donald Avenue & 2060/2100 Taxiway Avenue, UMB01, Block 6 (Formerly Lots 6-11), Metro Industrial Airpark, Fairbanks, AK 99701 |
| File Number: | 100.38.228 |
| Hazard ID: | 25519 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.808353 |
| Longitude: | -147.765558 |
| 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 Fairbanks Natural Gas property consists of a natural gas storage and distribution system which supplies natural gas to the distribution infrastructure in Fairbanks. The primary components of the facility are liquid natural gas (LNG) storage vessels, odorization and vaporization equipment, a truck transfer area, heat exchangers, a building housing a boiler, and a control building. A subsurface site investigation in 2005 consisted of eight soil borings to depths up to 5 feet below ground surface (bgs) and installation of four groundwater monitoring wells for assessment of groundwater conditions. Stabilized groundwater levels in the wells ranged from 4.14 to 5.60 feet below the top of the well casing. Based on groundwater elevations calculated using an arbitrary datum at the Site, groundwater beneath the Site flows to the northwest. GRO, DRO, RRO, and glycols were not detected above the respective Method Reporting Limits (MRLs) in groundwater samples. Diesel Range Organics (DRO) and Residual Range Organics (RRO) were detected in soil at concentrations up to 14,000 mg/kg and 80,000 mg/kg, respectively. Metal concentrations in soil were generally similar to the concentrations detected in the two background samples collected. Gasoline Range Organics (GRO) were not detected above the MRL in the soil samples. At the time of site intake, no remediation or disposal activities with respect to the RRO and DRO had been conducted. Soil remediation is planned for summer 2010.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 5/27/2010 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 5/27/2010 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 78891 name: Fairbanks Natural Gas, Metro Industrial Airpark | Mitzi Read |
| 6/4/2010 | Document, Report, or Work plan Review - other | Reviewed 2005 Baseline Site Assessment report received May 28, 2010. Potential contaminant source areas include thre burn area, a drum storage area, areas of stained soil and a potential drywell. Eight soil borings were advanced around the property and four groundwater monitoring wells were installed and sampled. Groundwater samples did not contain detectable concentrations of contaminants, however the wells were screened from 10-20 feet bgs with water levels at about 5 feet bgs. Soil samples contained contaminants above cleaup levels in thre of the boreholes, with DRO detected up to 14,000 mg/kg in a surface sample collected at the 'burn pile' and RRO up to 80,000 mg/kg in the same sample. Contaminants above cleanup levels were also detected at the surface in the hangar building and at the drum storage area. | Bill O'Connell |
| 6/9/2010 | Potentially Responsible Party/State Interest Letter | Bill O'Connell | |
| 7/19/2010 | Document, Report, or Work plan Review - other | Reviewed Soil Remediation Work Plan for Fairbanks Natural Gas Facility. Prior to remediation additional characterization will be conducted at two areas west of the dome, near monitoring well FMW-4, near the former dormitory building, near boring FSB-1, at the septic tank area, near monitoring well FMW-2, and near borings FSB-4 and FSB-6.Soil samples will be analyzed for DRO and RRO, samples from the two burn areas near FMW-2 and FSB-6 will also be analyzed for PAHs, PCBs, VOCs and dioxins. VOCs will also be analyzed in one sample from near FSB-4 and from the tank area if contamination is suspected. The septic tank will be removed and investigated and the floor drain sealed as a UIC well in accordance with an EPA approved plan. Contaminated soil will be excavated and treated at OIT if appropriate or otherwise disposed of. Confirmation samples will be collected in accordance with Table 2b from the ADEC Field Sampling Guidance. The monitoring wells currently on site will be decommissioned in accordance with ADEC guidance and if contamination is encountered in close proximity to groundwater, new wells will be installed that are screened across the water table. | Bill O'Connell |
| 9/23/2010 | Document, Report, or Work plan Review - other | Reviewed Letter report of Soil Characterization Results for FNG. Additional characterization was conducted along the septic system, at the drum storage area, and at the two burn areas. Soil sampling indicated the septic system is not a source of contamination at the site and PCBs and dioxins were not found above cleanup levels at the burn piles. Because contamination has not reached groundwater the monitoring wells installed in 2005 were approved for decommissioning. | Bill O'Connell |
| 12/22/2010 | Document, Report, or Work plan Review - other | Reviewed Soil Remediation Report for Fairbanks Natural Gas Facility. Activities conducted at the site in 2010 included removal of a septic system and UIC well closure by EPA, decommissioning of four groundwater monitoring wells, and the excavation and thermal treatment of 300 tons of soil from the Hangar Area, Burn Barrel Area, Burn Pile Area, and Drum Storage Area. Excavation was not conducted at the septic tank because characterization samples did not contain contaminants above cleanup levels. At each of the excavation areas, contaminated soil was successfully removed and confirmation samples did not contain contaminants above ADEC cleanup levels | Bill O'Connell |
| 12/29/2010 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 78891 Fairbanks Natural Gas, Metro Industrial Airpark. | Bill O'Connell |
| 1/6/2011 | Cleanup Complete Determination Issued | The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with the Fairbanks Natural Gas Metro Industrial Park natural gas facility located on Lots 6 through 11 of Block 6, Metro Industrial Airpark in Fairbanks Alaska. 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 this site will be closed. | Bill O'Connell |
| 8/26/2015 | Update or Other Action | This file has been archived at Alaska Archives, Barcode 896962 Box 396 | Susan Carberry |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| 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.