Site Report: JBER-Ft. Rich Bldg 796 UST 160
| Site Name: | JBER-Ft. Rich Bldg 796 UST 160 |
|---|---|
| Address: | Davis Highway and 5th Street; Building 796, Fort Richardson (JBER), AK 99505 |
| File Number: | 2102.26.074 |
| Hazard ID: | 26867 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.263127 |
| Longitude: | -149.693076 |
| 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
A 1,000-gallon used oil underground storage tank (UST 160) was removed from the ground on August 17, 2016 at Building 796. The excavated tank appeared to be in excellent condition upon removal. The product pipe run leading from the tank to the building to the interior oil drop sink was a flexible braided pipe inside a flexible plastic containment pipe. Piping was removed to the building foundation and plugged. The interior oil drop sink was also removed and plugged at the building foundation. The remaining pipe segment in the foundation was abandoned in place. The vent pipe was adjacent to the flex hose product pipe run; the vent pipe was removed in its entirety and disposed of as scrap metal. Field screening and confirmation samples were collected from throughout the excavation and soil stockpile. Confirmation samples indicated exceedances above the ADEC cleanup levels for arsenic. Methylene chloride was present in all confirmation samples and the laboratory supplied trip blank, and was also present in the laboratory QA/QC samples. Arsenic ranged from 2.54 mg/kg to 5.02 mg/kg. Arsenic is above ADEC cleanup levels; however, below the JBER background threshold value for arsenic at 9.31 mg/kg. Fuels and polycyclic aromatic hydrocarbons were detected in the excavation area below ADEC cleanup levels. Detections for diesel range organics and residual range organics in samples collected in the excavation area indicate a small release may have occurred; however, gross contamination was not encountered.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 7/2/1991 | Update or Other Action | RCRA SWMU 37: Former Neutralization Tank Building 796 is used for equipment and vehicle maintenance, and formerly contained a battery neutralization system. An underground tank storing neutralized battery acid deteriorated over time, until its remains and surrounding soils were reportedly removed in the late 1980's. The tank was most likely leaking for several years before its-removal, and therefore there is a potential for ground-water contamination. There could be continuing releases to ground water if soils were not sufficiently cleaned up during excavation (there was no documentation available for the RFA). Fort Richardson should first attempt to locate any documentation of the tank removal and cleanup actions, to verify whether appropriate actions were taken. The installation should initiate an investigation of soil and ground water to determine whether a release has occurred if such documentation is not available. In addition to the release of acids/caustics, heavy metals would be of concern in this study work. | Louis Howard |
| 6/27/2017 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Environmental Compliance Consultants, Inc. (ECC) in coordination with subcontractor Silver Mountain Construction, LLC (SMC), completed the removal of 21 underground storage tanks (USTs) & their associated pipelines & dispensers at 17 Buildings across Joint Base Elmendorf-Richardson (JBER), Alaska. Tank 160 was a 1,000-gallon used oil tank with ADEC tag 0956 at Building 796 & was removed on 17 August 2016. ECC emptied any remaining oil mixed with water from the tank prior to excavation. Samples collected at this location were collected from native soil from the excavation area. Confirmation samples were analyzed for GRO, VOC, BTEX, EDB, DRO, RRO, PAH, PCBs, & RCRA Metals. All results below most stringent cleanup level. Monitoring wells AP-3777 & AP-3591 are located SE & NW respectively to Building 796. The depth to GW at well AP-3777 is 84 feet bgs located approximately 600 feet SE of the UST locations north of Building 796. The depth to GW at well AP-3591 is 146 feet bgs located approximately 950 feet NW of the UST locations. | Louis Howard |
| 6/5/2018 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 6/5/2018 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST site created in CSP database for source area 1,000-Gallon Used Oil UST 160, 80234 | Mitzi Read |
| 6/29/2018 | Cleanup Complete Determination Issued | Building 160 UST 160 Site Assessment report documented no exceedances of most stringent cleanup levels at the site. Cleanup complete determination made by ADEC. | Louis Howard |
| 6/29/2018 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 80234 name: 1,000-Gallon Used Oil UST 160 | Louis Howard |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | < Method 2 Most Stringent | SoilSoilSoil |
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) |
| Hazard ID | Site Name | File Number |
|---|---|---|
| 26868 | JBER-Ft. Rich Bldg 796 USTs 161 & 162 | 2102.38.075 |
| 1497 | JBER-Ft. Rich OUD Bldg 796 USTs USTA 2 Party | 2102.38.004.05 |