Site Report: McCully Truck Rollover MP 32.1 Taylor Highway
| Site Name: | McCully Truck Rollover MP 32.1 Taylor Highway |
|---|---|
| Address: | MP 32.1 Taylor Highway, ~32.5 Miles NE of Tok, Tok, AK 99780 |
| File Number: | 200.38.005 |
| Hazard ID: | 4585 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.668160 |
| Longitude: | -142.270130 |
| Horizontal Datum: | NAD83 |
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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
On July 28, 2007, 3,698 gallons of diesel fuel were released when a fuel truck rolled off the Taylor Highway. Much of the contamination remains and likely migrated vertically or beneath the highway. Visible surface contamiation extended 251 feet along the east dich of the highway, and varied in width from 2 to 10 feet. Excavation of the entire length of the ditch occurred to the maximum depth feasible during initial response activities. Fractured bedrock and boulders made the excavation difficult and in most areas the excavation depth did not exceed 4 feet. Visible contaminated soil could be seen between the boulders. 14 dump truck loads (~9 cubic yards each) of contaminated soil were removed; rocks were screened out on site and remaining soil (167.58 tons) was hauled to OIT for thermal remediation. Initial analytical data and field screening data showed contamination above ADEC cleanup levels remained along most of the excavation. Additional site characterization efforts were conducted in October 2007 to determine the extent of contamination; this operation was unsuccessful due to the topography and inability to drill through the substrate.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 8/1/2007 | Interim Removal Action Approved | Tanker truck rollover occurred on July 28, 2007. Following the initial response actions, soil excavation of the ditch area was conducted on August 1 through 4, 2007. They excavated soil along 260 feet of the ditch; 2 to 4 feet deep and 4 to 14 feet in width. An estimated 126 yards was removed; then screened to removed larger particles. The soil treatment facility reported 167.5 tons was delivered from the site. Soil samples from the ditch ranged from 8650 to 14,000 mg/kg DRO. The soil transported off site ranged from 822 to 11,600 mg/kg DRO. | Jim Frechione |
| 1/18/2008 | Spill Transferred from Prevention Preparedness and Response Program | Site transferred by PERP staff Wesley Ghormley. Spill Date = 7/28/07; Spill No = 07309920901; Substance = Diesel; Quantity = 3,698 Gallons; PERP File No. 200.02.015. | Mitzi Read |
| 1/29/2008 | Site Characterization Report Approved | Shannon & Wilson report summarizing the results of 13 soil borings along the ditch and in the road bed area. the borings only ranged 2 to 9 feet though the original plan proposed 9 borings to 20 feet. Soil samples were screened and 5 samples(with 1 duplicate) detected DRO from 41.5 to 1560 mg/kg with the highest concentration in the ditch area. it was concluded that contamination migrated vertically with limited horizontal based on the geology of the site (ie fractured bedrock interspersed with fine soil particles). a site visit in 2008 was recommended to observe conditions in stream area and any groundwater seeps. | Jim Frechione |
| 1/30/2008 | Site Added to Database | Site added to the database. | Mitzi Read |
| 1/30/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Mitzi Read |
| 10/27/2008 | Update or Other Action | In may 2008, S&W conducted a site visit and took surface water quality samples. TAH exceeded surface water standards by a few ppbs. Next event in spring 2009 needs to include TAqH as well as TAH. Sorbent booms will be replaced on a dam in the creek. | Neal Everson |
| 4/20/2009 | Site Characterization Workplan Approved | Approved workplan for 2009. RP will sample for TAH and TAqH in effluent and down stream, submit CSM and ecoscoping forms, make observations of condition of site, replace sorbent booms. The dam must be maintained due to surface water quality violations in 2008 including >TAH and surface water sheen. | Neal Everson |
| 12/18/2009 | Update or Other Action | Site transferred to Will Boger. | Janice Wiegers |
| 5/5/2010 | Update or Other Action | Call from Sam Meyers at DOT. The underflow dam at site was causing flooding across the road due to spring melt run off and the area maintenance foreman wanted permission to remove it. This action was approved. They will re contour the ditch and remove any remaining absorbent boom material. | Willett Boger |
| 5/27/2010 | Update or Other Action | Certificate of Thermal Treatment for soil transported received from OIT, Mark Sanford. | Willett Boger |
| 1/5/2011 | Cleanup Complete Determination Issued | Willett Boger |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | DRO remains in the subsurface soil and fractured bedrock beneath the road right of way. |
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.