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Site Report: ADOT&PF SREB - Savoonga Airport (New)


Site Name: ADOT&PF SREB - Savoonga Airport (New)
Address: Airport Road; Savoonga Airport Apron, North Coast of St. Lawrence Island; ~164 Miles W of Nome, Savoonga, AK 99769
File Number: 670.38.005
Hazard ID: 25444
Status: Active
Staff: Janice Wiegers, 9074512127 janice.wiegers@alaska.gov
Latitude: 63.690688
Longitude: -170.486980
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.

Problems/Comments

In the summer of 2009, the gravel floor of the (new) Savoonga airport snow removal equipment building (SREB) was excavated in preparation for installation of a new concrete floor. Contaminated soil was placed in supersacks pending approval of disposal method. DRO and RRO above cleanup levels were documented in the excavated soil. The new SREB, on the runway apron, should not be confused with the old SREB, which is ~0.3 Mile N/NE of the runway.

Action Information

Action Date Action Description DEC Staff
6/23/2009 Site Added to Database A new site has been added to the database Mitzi Read
8/4/2009 Update or Other Action Sam Meyer (DOT M&O) provided a June 2009 Diesel Cleanup Plan that was prepared for by Brice Environmental, Inc. by Environemntal Compliance Consultants, Inc. and associated emails from on-site workers discussing the excavation. The emails indicate the excavation extended to a depth of about 6 inches and that a membrane was present somewhere below that depth. According to the emails, the majority of the contamination was removed, and sample results from the excavated material contained DRO up to 1030 mg/kg and RRO up to 5000 mg/kg. Janice Wiegers
8/17/2009 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78809 name: ADOT&PF SREB - Savoonga Airport (New) Mitzi Read
8/18/2009 Update or Other Action DEC approves transport of 39 cubic yards of contaminated soil for incorporation into the runway or wind cone pad. This soil must be placed in locations that are at least 100 feet from surface water. Janice Wiegers
6/3/2011 Update or Other Action DEC provided information to EPA due to an inquiry EPA received about contaminated soil being incoporated into the airport runway. Communication with DOT indicated the soil had been incorporated into the apron to maintain the proper distance from surface water. DEC checked with the drinking water program and determined the Savoonga drinking water well is located south of the runway about 1,200 feet from the area where the contaminated soil was spread. The well is about 150 feet deep and is installed through permafrost and fractured bedrock. Janice Wiegers
6/10/2013 Update or Other Action Requested update from DOT. A final report had not been submitted for the excavation work, although a report was planned in the workplan prepared by Environmental Compliance Consultants. DOT verified that SREB floor is now concrete. Janice Wiegers
5/3/2017 Update or Other Action Discussed plans for site with Sam Meyer, DOT recently. DOT will have ECC draft final cleanup report for site this year. Janice Wiegers
7/20/2017 Report or Workplan Review - Other SREB Contaminated Soil Cleanup and Closure report submitted by Environmental Compliance Consultants and prepared for DOT. In July 2009, soil, including all visibly-stained soil was removed to 6 inches prior to pouring a concrete floor. No samples were collected at the base of the excavation, although sampling had originally been planned. A decision was made to only sample soil for disposal, since the concrete would cap remaining contamination left in place. Brice Environmental Services excavated 39 cubic yards of soil into a lined stockpile and then stored soil in supersacks. Three samples and a duplicate were collected from the stockpile and analyzed for DRO and RRO, which were found at levels up to 1,030 mg/kg and 4,220 mg/kg, respectively. The soil was placed under the runway in the summer 2009. Conceptual Site Model included in report. Janice Wiegers
9/27/2017 Update or Other Action DEC sent a letter to Sam Myers, DOT, to respond to the draft report. The report was approved; however, the site cannot be closed without additional site characterization. Janice Wiegers

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

There are no documents for this site report.

Missing Location Data

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