Site Report: Halliburton Energy Soil Disposal
| Site Name: | Halliburton Energy Soil Disposal |
|---|---|
| Address: | 6890 Arctic Boulevard, Referred to in past documents as 6900 Arctic Boulevard (mailing), Anchorage, AK 99518 |
| File Number: | 2100.38.083 |
| Hazard ID: | 3310 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.157898 |
| Longitude: | -149.893220 |
| 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
An estimated 100 cubic yards of suspected contaminated soil was stockpiled and later approved for disposal at the MOA solid waste landfill. The suspected contaminated soil was encountered at the west end of a trench excavated for the installation of a buried storm drain and was segregated by the contractor into two stockpiles, one from the gravelly surface soil and the second stockpile comprised of soil and peat from below the apparently contaminated gravelly soil.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 10/2/2000 | Update or Other Action | ADEC received notification of spill by fax provided by consultant URS that included laboratory results for stockpile and trench sampling. Contamination encountered by construction contractor on 9/7/2000; on 9/11/2000 URS sampled two stockpiles totaling an estimated 125 cubic yards and sampled the open trench in three locations at a depth of 2.5 feet bgs. | Eileen Olson |
| 10/20/2000 | Document, Report, or Work plan Review - other | ADEC received and approved the URS stockpile sampling plan dated October 13, 2000 for an approximately 125 cubic yard stockpile generated on Sept. 11, 2000 during excavation of a buried storm drain at the site. The plan proposes to follow ADEC guidance for background sampling to demonstrate that DRO and RRO levels are elevated througout the area of the site, which has a layer of peat present from approximately 2 to 6 feet below the ground surface. | Eileen Olson |
| 10/26/2000 | Offsite Soil or Groundwater Disposal Approved | ADEC and MOA approved disposal of gravelly soil stockpile at the MOA regional landfill. Soil was transported on 11/22/2000 under MOA authorization number CS20013. The weight of the soil was 17 tons or approximately 10 cubic yards. | Eileen Olson |
| 11/1/2000 | Document, Report, or Work plan Review - other | ADEC approved plan by consultant URS dated October 30, 2000 to spread at the site approximately 125 cubic yards of soil excavated during trenching for installation of storm drain laterals. (Instead, according to consultant URS the RP later chose to dispose of the soil off-site). Soil was primarily peat with two samples collected from the stockpile with one analyzed with and one without silica gel cleanup with respective results of 200 and 626 mg/kg DRO and 2,110 and 5,530 mg/kg RRO; samples collected from the limits of trench excavations were analyzed with silica gel cleanup with results of 239, 248 and 258 mg/kg DRO and 4,130, 4,330 and 3,980 mg/kg RRO respectively. Consultant posited that DRO and RRO were biogenic; ADEC approved spreading as reasonable. | Eileen Olson |
| 1/31/2001 | Document, Report, or Work plan Review - other | ADEC received report "Determination of Background Concentrations" prepared by URS and dated January 31, 2001. Background sampling results were intended to demonstrate that elevated RRO and DRO concentrations resulted from naturally occuring organics present in a peat layer 2 - 6 feet below the ground surface. Three hand borings were placed 150 feet from the utility trench in an undisturbed and presumably uncontaminated area in accordance with the approved sampling plan dated October 13, 2000. URS requested no further action status for the site contamination and proposed alternative cleanup levels for the site of 1,500 mg/kg DRO and 14,500 mg/kg RRO. In response ADEC staff provided informal comments to the consultant, noting that only one sample taken in 9/2000 was analyzed for DRO without silica gel cleanup, while none of the samples collected as background for comparison in 10/2000 were analyzed for DRO without silica gel cleanup - analysis was only done for DRO with silica gel cleanup - so that a comparison of the results was of questionable validity. ADEC did not approve the alternative cleanup levels or grant no further action status. Inspection of stockpiled peat-rich soil to take place in spring. | Eileen Olson |
| 7/25/2001 | Site Visit | ADEC project manager met with Halliburton Energy Services representative on site to view stockpiled material deemed by URS to contain naturally occurring DRO and RRO range organics. Staff observed stockpiled soil; there was no observable visual or olfactory evidence of contamination. | Eileen Olson |
| 8/2/2001 | Offsite Soil or Groundwater Disposal Approved | ADEC approved transport and disposal of stockpiled soil (estimated at 100 tons) at the MOA solid waste landfill. | Eileen Olson |
| 9/15/2004 | Site Added to Database | DRO. | Sarah Cunningham |
| 9/16/2004 | GIS Position Updated | TopoZone Pro. NAD 27. Street map on black and white aerial photo with no basemap using a view scale of 1:10,000. | Sarah Cunningham |
| 9/16/2004 | Site Ranked Using the AHRM | Initial ranking. | Sarah Cunningham |
| 6/13/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Eileen Olson |
| 3/18/2013 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 74285 Stockpiled petroleum-hydrocarbon contaminated soil. | Eileen Olson |
| 3/26/2013 | Update or Other Action | ADEC issued letter requesting information on disposition of stockpiled soil at the site dating back to 2000 as no documentation of disposal at the Municipality of Anchorage Regional Landfill is on file. | Eileen Olson |
| 6/21/2018 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 74285 DRO-contaminated soil - unknown source. | Catherine Beatty |
| 6/22/2018 | Cleanup Complete Determination Issued | All contaminants of concern are below clean up levels. Final closure document issued. | Catherine Beatty |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | < Method 2 Most Stringent | Soil | |
| RRO | < 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. | |
| 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.