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Site Report: AKARNG Tuntutuliak FSA


Site Name: AKARNG Tuntutuliak FSA
Address: No street address, Tuntutuliak, AK 99680
File Number: 2452.38.001
Hazard ID: 2824
Status: Cleanup Complete
Staff: ,
Latitude: 60.345415
Longitude: -162.675138
Horizontal Datum:NAD83

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

Petroleum contaminated soil. DRO ranging up to 150,000 mg/kg. TPH up to 204,000 mg/kg. Last staff assigned was Pexton.

Action Information

Action Date Action Description DEC Staff
12/18/1997 Site Added to Database Petroleum contaminated soil. Scott Pexton
12/18/1997 Site Ranked Using the AHRM Site ranked by staff. Scott Pexton
12/18/1997 Update or Other Action (Old R:Base Action Code = SA1A - Phase I Site Assessment Approval). Draft Report for Preliminary Assessment/Site Investigation dated February 1997 reviewed (received 12/12/97, prepared by Ogden Environmental and Energy Services). GRO detected in 3 of 5 soil samples ranging from 210 to 500 mg/kg; DRO in 6 or 7 samples ranging from 99 to 150,000 mg/kg; benzene in 1 of 4 samples at 1.5 mg/kg; TPH in 6 or 7 samples from 360 to 204,000 mg/kg. Matrix score indicates Level B cleanup standard. Scott Pexton
2/10/1998 Site Ranked Using the AHRM Site reranked by staff. Changed Toxicity Value from 2 to 3; Quantity Value from 2.1 to 2; Air Exposure Index Value from 0.2 to 0.1; GW Usage Value from 0.1 to 1; GW Exposure Index Value from 0 to 0.4 and Environmental/Recreation Area from 0 to 2. Former score was 29. Scott Pexton
4/27/1998 Site Ranked Using the AHRM Site reranked by staff. Changed Toxicity Value from 3 to 2 and SW Usage Value from 1 to 0.2. Former score was 63. Scott Pexton
9/23/2002 Update or Other Action A Site Assessment was done by Portage Environmental under NALEMP. The conclusion is that the DoD and AKARNG are not responsible for the contamination and therefore the site is not eligable for further work under NALEMP. Site is reported to be the Old BIA school and the contamination related to the BIA activities. Report is of a 1997 assessment. Debra Caillouet
1/22/2004 Update or Other Action ADEC received draft Alternate Cleanup Level Demonstration Project workplan. Beatrice Egbejimba
4/12/2004 Update or Other Action File number assigned: 2452.38.001. Sarah Cunningham
1/30/2006 Update or Other Action Staff reviewed and drafted a comment letter on the Alternative Cleanup Level Demonstration project Debra Caillouet
12/12/2006 GIS Position Updated Latitude/longitude updated using ADEC GIS at 1:24,000 with topo map as well as DCED on-line Tuntutuliak community map. Mitzi Read
4/8/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Debra Caillouet
4/15/2008 Site Characterization Report Approved Staff accepted the final Alternative Cleanup Level report. Debra Caillouet
2/3/2010 Meeting or Teleconference Held Staff participated in the Installation Action Plan meeting. Debra Caillouet
11/30/2010 Report or Workplan Review - Other Staff reviewed and sent comment to the Alaska Army National Guard on the Draft Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, November 2010, including the Site Specific Plans for Akiak, St. Mary’s and Tuntutuliak. Debra Caillouet
1/26/2011 Site Characterization Workplan Approved Final Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, January 2011 and the Site Specific Plans for Akiak, St. Mary’s and Tuntutuliak. Debra Caillouet
5/23/2011 Site Characterization Workplan Approved Final Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, April 2011 approved. Debra Caillouet
4/5/2013 Report or Workplan Review - Other Draft Tuntutuliak Federal Scout Readiness Center, Data Gap Investigation Report, March 2013 Similar to other recent DGI reports, this one also does not include all supporting data, misapplies the EPH/VPH from multiple source areas and duplicates. This one even creates a relatively high cumulative risk from all non-detected results. Please have this report reviewed by the contractor and resubmitted with all data and the appropriate use of the data. Debra Caillouet
5/3/2013 Site Characterization Report Approved Final Tuntutuliak Federal Scout Readiness Center, Data Gap Investigation Report, April 2013 The report recommends alternative soil cleanup levels based on the aliphatic/aromatic split determined by the Washington EPH/VPH methods. The total DRO based on this is 11,482 mg/kg for the main source area and 11,147 mg/kg for the generator source area. These values are calculated from the ingestion cleanup levels of 4100 mg/kg DRO aromatic and 10,000 mg/kg DRO aliphatic. ADEC has no objection to the use of these cleanup levels. Confirmation sampling will be necessary to show all three levels,(total DRO by AK102, DRO Aromatic and DRO Aliphatic) are met for each site. Debra Caillouet
6/10/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 73800 Spills/Leaks. Debra Caillouet
7/16/2013 Cleanup Level(s) Approved Record of Decision signed. Debra Caillouet
12/26/2013 Cleanup Level(s) Approved Revised record of decision for petroleum contamination to correct typos on page 4 of orginal Debra Caillouet
4/20/2015 Cleanup Plan Approved Remedial action to remove and ship off-site remaining contaminated soil. Debra Caillouet
12/16/2015 Report or Workplan Review - Other Rec'd draft Remedial Action Report this date. Danielle Duncan
12/17/2015 Update or Other Action Staff changed to Danielle Duncan and hard file transferred to the Juneau office. Kristin Brown
1/15/2016 Report or Workplan Review - Other Sent approval letter and minor comments for draft Remedial Action Report. The draft report documented excavation activities at the site in preparation for site closure without ICs. 36 yd3 was excavated from three source areas and shipped in SuperSacks to an appropriate landfill for disposal. Soils in the area are characteristic of tundra and have high organic matter (peat) content and low solid content (as low as 13%) especially for the surface layer (up to two feet below ground surface). The laboratory data reflected these characteristics and diesel range (DRO) and residual range (RRO) organics analyses were run both with and without silica gel cleanup. These analyses demonstrated that the peat in the soil co-elutes with DRO and RRO and results in higher petroleum values than are actually present. The chromatograms and chemist’s comments verify these conclusions. Therefore, the ADEC concurs that naturally-occurring organic material is quantified erroneously as RRO at concentrations exceeding site-specific cleanup levels in several samples at the site. Aside from these erroneous values, all of the confirmation samples collected post-excavation have concentrations lower than the site-specific cleanup levels, and the ADEC anticipates issuing a Cleanup Complete without ICs designation once a finalized copy of the report is received by our office. Danielle Duncan
2/29/2016 Report or Workplan Review - Other Rec'd final Remedial Action Report this date. Danielle Duncan
8/24/2016 Site Characterization Report Approved Drafted and sent an approval letter for the final remedial action report. Danielle Duncan
8/26/2016 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 73800 Spills/Leaks. Danielle Duncan
8/29/2016 Cleanup Complete Determination Issued Danielle Duncan

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil Maximum DRO concentration remaining on site is 4,190 mg/kg.
RRO < Method 2 Most Stringent Soil
Benzene < Method 2 Most Stringent Soil
Ethylbenzene < Method 2 Most Stringent Soil
1-Methylnaphthalene < Method 2 Most Stringent Soil
2-Methylnaphthalene < Method 2 Most Stringent Soil
Naphthalene < Method 2 Most Stringent Soil
Toluene < Method 2 Most Stringent Soil
Xylenes (total) < 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)

Missing Location Data

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