Action Date |
Action |
Description |
DEC Staff |
7/27/1998 |
Update or Other Action |
Received Preliminary Assessment Records Review report and Draft Site Sampling Plan, both prepared by Hart Crowser, Inc. |
Scott Pexton |
8/12/1998 |
Site Characterization Workplan Approved |
Letter sent with approval of draft site sampling plan. |
Scott Pexton |
9/14/1998 |
Update or Other Action |
Received Final Site Sampling Plan, prepared by Hart Crowser, Inc. |
Scott Pexton |
12/28/1998 |
Update or Other Action |
Received Draft Site Investigation report, prepared by Hart Crowser, Inc. |
Scott Pexton |
6/11/1999 |
Update or Other Action |
Letter sent with comments on draft site investigation report. |
Scott Pexton |
8/20/1999 |
Update or Other Action |
Received Final Site Investigation Report, prepared by Hart Crowser, Inc. |
Scott Pexton |
11/12/1999 |
Site Added to Database |
Petroleum product from heating oil system. |
Scott Pexton |
11/18/1999 |
Site Ranked Using the AHRM |
Site ranked based on information in the August 1999 Final Site Investigation report, prepared by Hart Crowser, Inc. |
Scott Pexton |
2/27/2002 |
Update or Other Action |
Received "Corrective Action Plan" prepared by Clearwater Environmental, Inc. The plan describes a proposed interim removal action to excavate up to 20 cubic yards of petroleum-contaminated soil to reduce potential exposure to grossly contaminated soil. The plan proposes method one cleanup levels for petroleum hydrocarbons excavated during the interim action, based on Table A1 of 18 AAC 75.341 (Category D cleanup levels proposed are 1,000 mg/kg for GRO, 2,000 mg/kg for DRO, and 2,000 mg/kg for RRO). BTEX concentrations are to be compared to method two, Table B1 Migration to Groundwater cleanup levels. Excavated soil to be transported to a thermal desorption treatment facility located in Lakewood, Washington. |
Scott Pexton |
4/10/2002 |
Update or Other Action |
Received "Final Interim Removal Action Plans prepared by Clearwater Environmental, Inc. |
Scott Pexton |
4/15/2002 |
Site Characterization Report Approved |
Sent letter to Norm Straub of the Alaska Army National Guard with approval of the 1999 Final Site Investigation report prepared by ERM West, Inc./Hart Crowser, Inc. with conditions: (1) based on the information provided, ADEC does not approve the proposed alternative cleanup levels of 10,250 mg/kg for DRO, 1,400 mg/kg for gasoline range organics (GRO), 1 mg/kg for benzene, 526 mg/kg for toluene, 714 mg/kg for ethylbenzene, and 10,187 mg/kg for total xylenes; and,
(2) soil cleanup levels provided under method one and method two apply at a contaminated site unless the department approves an alternative cleanup level that the responsible person has proposed under method three or method four (18 AAC 75.340 (d)). Letter also provided specific comments on the interim removal action plan provided by Clearwater Environmental, Inc. |
Scott Pexton |
5/3/2002 |
Update or Other Action |
Received Email message from Norm Straub of the AKARNG with attached Addendum for the Final Interim Removal Action Plan. |
Scott Pexton |
5/14/2002 |
Interim Removal Action Approved |
Letter sent to Norm Straub of AKARNG with approval of interim removal action plan (with addendum) prepared by Clearwater The plan describes procedures to conduct an interim removal action in accordance with 18 AAC 75.330. ADEC determined that the proposed interim removal action will reduce human and environmental exposure to hazardous substances at the site and help to prevent the migration of hazardous substances from the site to groundwater and surface water. Up to twenty cubic yards of petroleum-contaminated soil will be excavated and placed in 55-gallon steel drums or 1-cubic yard Supersacks for temporary storage onsite in an area lined with 10-mill polyethylene plastic. The drums or Supersacks will also be covered with a 6-mill polyethylene plastic cover. The contractor intends to transport the contaminated soil via barge to Seattle, Washington and then via highway to a thermal desorption treatment facility located in Lakewood, Washington. Prior to transporting the contaminated soil from the Alakanuk Federal Scout Armory site, the Alaska Army National Guard contractor will obtain written ADEC approval to move the soil in accordance with 18 AAC 75.370 (b). |
Scott Pexton |
5/14/2002 |
Record of Decision |
Approved Soil Cleanup Levels: Benzene = 0.02 mg/kg, GRO = 100 mg/kg, and DRO = 200 mg/kg using method one, Table A1 and Table B1 at 18 AAC 75.341. Approximately 20 cubic yards of petroleum-contaminated soil will be excavated in accordance with an approved interim removal action plan. |
Scott Pexton |
7/10/2002 |
Update or Other Action |
Received faxed documentation from Norm Straub of the Alaska Army National Guard regarding TPS Technologies Inc., a soil treatment facility in the State of Washington, including a cop0y of the operating permit, and a letter indicating acceptance of soils from seven AKARNG facilities. |
Scott Pexton |
7/16/2002 |
Update or Other Action |
Faxed signed authorizationlletter to transport 20 cubic yards of DRO contaminated soil from the Alakanuk Federal Scout Armory to the TPS Technologies treatment facility at 2800 104 St. Court South, Lakeland Washington. Soil will be contained in supersacks and transported by Norhtland Barge to the docks and trucked by Interwest Development Construction to the TPS facility. |
Scott Pexton |
3/15/2004 |
Update or Other Action |
File number assigned: 2403.38.001. |
Sarah Cunningham |
6/2/2004 |
Update or Other Action |
ADEC received draft Alternate Cleanup level Demonstartion Preoject. |
Beatrice Egbejimba |
6/16/2004 |
Update or Other Action |
ADEC reviewed a draft interim removal action report recieved on April 4, 2003. AKARNG provided comments on April 20, 2004. ADEC had no objections to the report based on AKARNG comments. |
Beatrice Egbejimba |
2/4/2005 |
GIS Position Updated |
based on consultant' report |
Debra Caillouet |
2/4/2005 |
Update or Other Action |
Staff reviewed the July 2004 final workplan that was recieved Oct 04 for the Alternate Cleanup Level Project. The work plan in general meets requirements. |
Debra Caillouet |
2/18/2005 |
Update or Other Action |
A letter was sent to the AKANG providing conditional approval of the workplan. |
Debra Caillouet |
8/3/2005 |
Update or Other Action |
Staff drafted a letter for the Interim Removal Action Report. |
Debra Caillouet |
8/22/2005 |
Interim Removal Action Approved |
A letter was sent to the AKARN approving the IRA report with the following content: The Interim Removal Action documents that 20.8 tons of petroleum contaminated soil was removed and treated at TPS Technologies in Washington. Diesel range organics (DRO) were found up to 12,300 mg/kg remaining in the sidewall of the excavation next to the building.
All gasoline range organic (GRO), benzene, toluene, ethylbenzene, and xylene (BTEX) results were rejected due to high moisture content and a possibility that the field sampler introduced two vials of methanol and did not report that to the laboratory. DEC does not have a copy of the field notes and cannot make a decision on the validity of that determination. DEC is aware that an Alternative Cleanup Level demonstration project is ongoing for the site that includes sampling and analysis for GRO and BTEX. The results of that effort could be sufficient to allow determination of any necessary future actions regarding those analytes.
When DEC reviewed the Installation Action Plan in March 2005, it was noted that the summary of the Site Investigation (SI) did not include the finding of a leaking creosote container and the storage of dry cleaning solvent in the storage van. It also did not include a drum storage area identified during the site inspection for the SPCC Plan in 1990 or the stressed vegetation noted as being in that area during the SI. This storage area was sampled only for petroleum hydrocarbons and found low levels of DRO. DEC requested that the area be sampled for chlorinated hydrocarbons and SVOCs and the proposed date for the removal of the building to assist in determining an appropriate long-term plan.
The Final Interim Removal Action Report adequately documents removal and off site treatment of some petroleum contaminated soil from the site. Therefore, DEC approves the interim action under 18 AAC 75.330. However, because residual petroleum contamination in soil exceeds cleanup levels and there are two areas insufficiently characterized, additional site characterization and/or cleanup are necessary. |
Debra Caillouet |
9/19/2005 |
Update or Other Action |
A comment letter was sent to the AKARNG regarding the Draft ACL report. |
Debra Caillouet |
6/12/2006 |
Cleanup Level(s) Approved |
A Method III cleanup level was approved. |
Debra Caillouet |
3/14/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Debra Caillouet |
2/3/2010 |
Meeting or Teleconference Held |
Staff participated in the Installation Action Plan meeting. |
Debra Caillouet |
11/30/2010 |
Document, Report, or Work plan 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 |
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 |
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 |
6/14/2013 |
Document, Report, or Work plan Review - other |
Alakanuk Federal Scout Readiness Center Data Gap Investigation Report, Draft March 2013
The report recommends cleanup levels of 1,400 mg/kg for GRO, 12,292 mg/kg for DRO, and 0.052 mg/kg for benzene based on the default aromatic and aliphatic cleanup levels from 18 AAC 75.34 Table B2 for the ingestion and inhalation pathways. The GRO is capped at the maximum allowable. ADEC has no objection to the use of these cleanup levels. Confirmation sampling will be necessary to show all levels, (total DRO by AK102, DRO Aromatic, DRO Aliphatic, total GRO by AK101, GRO Aromatic, GRO Aliphatic and benzene) are met.
|
Debra Caillouet |
8/8/2013 |
Site Characterization Report Approved |
Alakanuk Federal Scout Readiness Center Data Gap Investigation Report, Final June 2013
The report recommends cleanup levels of 1,400 mg/kg for GRO, 12,292 mg/kg for DRO, and 0.052 mg/kg for benzene based on the default aromatic and aliphatic cleanup levels from 18 AAC 75.341 Table B2 for the ingestion and inhalation pathways. The GRO is capped at the maximum allowable. ADEC has no objection to the use of these cleanup levels. Confirmation sampling will be necessary to show all levels, (total DRO by AK102, DRO Aromatic, DRO Aliphatic, total GRO by AK101, GRO Aromatic, GRO Aliphatic and benzene) are met.
|
Debra Caillouet |
9/19/2013 |
Cleanup Level(s) Approved |
ROD signed |
Debra Caillouet |
2/24/2015 |
Document, Report, or Work plan Review - other |
Draft Alakanuk Remedial Action Plan, Federal Scout Readiness Center, February 12, 2015 - approved and letter sent. |
Debra Caillouet |
12/17/2015 |
Update or Other Action |
Staff changed to Danielle Duncan and hard file transferred to the Juneau office. |
Kristin Thompson |
5/3/2016 |
Update or Other Action |
Field work is planned for June. |
Danielle Duncan |
9/27/2016 |
Document, Report, or Work plan Review - other |
Reviewed the Draft Remedial Action Report this date and had no comments - the report is approved. Excavation activities were guided using a photoionization detector and confirmation samples from the excavation base and sidewalls were submitted to an approved laboratory and analyzed for DRO. Thirteen cubic yards of soil were removed from the site and placed in Super Sacks to be disposed of at the Waste Management landfill in Seattle. Final confirmation sample results (6 samples and a duplicate) had DRO values ranging from 74-7,500 mg/kg which are lower than the site-specific cleanup level of 12,292 mg/kg. I look forward to receiving a final remedial action report. |
Danielle Duncan |
12/20/2016 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74035 AST. |
Danielle Duncan |
1/5/2017 |
Document, Report, or Work plan Review - other |
Rec'd the final remedial action report this date. |
Danielle Duncan |
12/20/2017 |
Cleanup Complete Determination Issued |
|
Danielle Duncan |