Site Report: Alyeska VMT U Site
| Site Name: | Alyeska VMT U Site |
|---|---|
| Address: | Valdez Marine Terminal, Dayville Road, Valdez, AK 99686 |
| File Number: | 1200.38.014 |
| Hazard ID: | 397 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.085500 |
| Longitude: | -146.398500 |
| 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
On May 20, 1987, a pipeline leak allowed crude-contaminated ballast water to contaminate soil beneath a faulty joint. Immediately after the release event, vacuum trucks recovered about 54 barrels of crude (2268 gallons), but about 16 barrels (672 gallons) soaked into the soil in an excavated containment area referred to as the "U-Site." Between 100 & 200 yards of contaminated soil was removed. The remaining impacted soil was treated by flushing and recovering crude on groundwater as it migrates into a series of excavations and underflow dams. Leaching to groundwater was enhanced by flushing impacted soil using surface spray, and horizontal migration to intercept points was enhanced by augmenting groundwater with supplemental water injected through injection wells. During a 1992 excavation to inspect a water line (for firefighting), crews uncovered mildly contaminated soils thought to have come from the 1987 spill. About 1,720 cubic yard was excavated.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 3/19/1993 | Update or Other Action | Date in footer of pages from report indicating that nine confirmation samples were collected at this site which showed BTEX, GRO (VPH), DRO (EPH), and RRO (TRPH) below most conservative Method 2 cleanup levels. March 1993 report entitled Tank Containment Soil Quality Assessment emailed from Alyeska on 02/25/2009, saved to network and printed off in its entirity to be included in the file. No figure of U site location or sample locations included in this report. | Keather McLoone |
| 5/14/1993 | Site Added to Database | Crude oil contamination. | Former Staff |
| 6/16/1993 | Update or Other Action | Date of "U" Site Surface Water Assessment Workplan indicating that samples to be taken monthly during the summer of 1993 from catch basin below the U site fire lines and analyzed for TRPH and BTEX. | Keather McLoone |
| 12/29/1993 | Update or Other Action | Surface and Subdrain Outlet Water Assessment - "U" Site and West Metering Road report prepared by Emcon on this date. Emailed from SLR on 2/20/09, saved to network, and printed out in its entirity to be included in the file. | Keather McLoone |
| 1/6/1995 | Site Number Identifier Changed | Reckey number changed from 1987400114001 due to region number change. | Scott Rose |
| 4/21/1998 | Site Ranked Using the AHRM | Ranking action added now because it was not added when the site was originally ranked. | Bill Petrik |
| 12/5/2000 | Site Ranked Using the AHRM | Changed Population Density Value from 0 to 5. | Former Staff |
| 12/27/2007 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Pam Clemens |
| 1/29/2013 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 71376 ballast water system tanks. All pathways are either De Minimis Exposure, Pathway Incomplete, or Pathway Controlled. | Richard Bernhardt |
| 2/20/2013 | Cleanup Complete Determination Issued | All soil and groundwater contaminant concentrations are below historic (1992) and contemporary (2013) cleanup levels. | Richard Bernhardt |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| RRO | < Table C | Groundwater |
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.