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Site Report: Alyeska VMT Tank 7 Oily Water Sump

Site Name: Alyeska VMT Tank 7 Oily Water Sump
Address: Valdez Marine Terminal, Dayville Road, Valdez, AK 99686
File Number: 1200.38.010
Hazard ID: 1434
Status: Active
Staff: Grant Lidren, 9072698685
Latitude: 61.081464
Longitude: -146.379058
Horizontal Datum:WGS84

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.


Sump vault separations allowed oily water to enter soils beneath liner. Subsurface investigations, bioventing, and monitoring is being tracked under the Alyeska VMT East TF Biovnet/ETF Summary informational file # 1200.38.017.

Action Information

Action Date Action Description DEC Staff
7/22/1992 Update or Other Action Receipt of report on 1991 subsurface investigation at ETF entitled East Tank Farm Sumps Subsurface Investigation Status Report which concludes that the lateral extent of contamination near sump associated with Tank 7 may not have been delineated. Report does not include any figures showing were samples were collected. Concentrations up to 9,810 mg/kg residual-range hydrocarbons (result obtained by calculation from analytical results) and 1,100 mg/kg diesel (EPH). GRO and BTEX results below Method Two migration to groundwater but results should be considered biased low due to holding time exceedance. Also, samples were not likely methanol preserved during this time period. Keather McLoone
3/25/1993 Update or Other Action Receipt of ETF Tank # 5 and Tank # 7 Subsurface Soil Investigation. Report includes boring logs. Borings were advanced and one to three soil samples selected from each boring based on staining and/or PID readings. Most samples collected from Tank #7 area and all were collected at subsurface depths. In these, TPH-diesel ranged from ND to 7,800 mg/kg, TPH-gasoline from ND to 2,200 mg/kg, TRPH from ND to 12,000 mg/kg, and benzene from ND to 0.7 mg/kg. Heterotrophic plate counts from six soil samples ranged from 320 to 18,000 CFU/mL. Residual-range hydrocarbons were also calculated by subtracting VPH and EPH. Keather McLoone
5/14/1993 Site Added to Database Petroleum contamination. No Longer Assigned
12/24/2007 Exposure Tracking Model Ranking Initial ranking with ETM completed. Pam Clemens
1/2/2008 GIS Position Updated Geographic coordinates verified. Pam Clemens

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details


Description Details

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