| Action Date |
Action |
Description |
DEC Staff |
| 5/7/1981 |
Site Added to Database |
Fuel oil contaminant. |
Former Staff |
| 8/9/1991 |
Site Number Identifier Changed |
Old# 81220912702 New# 8125X912702 Western district, regular CS now. |
Bill Petrik |
| 6/15/1995 |
Site Ranked Using the AHRM |
Initial ranking. Action code added because it wasn't when site was originally ranked. Too many unknowns, score is 0. |
John Halverson |
| 2/22/1996 |
Site Ranked Using the AHRM |
Site ranked. |
Bill Wright |
| 2/23/1996 |
Preliminary Assessment Approved |
(Old R:Base Action Code = SA1A - Phase I Site Assessment Approval). Phase 1 site assessment report reviewed and approved. |
Bill Wright |
| 3/27/1996 |
Update or Other Action |
Letter sent with request for additional characterization of extent of contamination. |
Bill Wright |
| 7/31/1996 |
Site Number Identifier Changed |
Combined Reckey 198125X912702 into this Reckey. |
Bill Petrik |
| 9/9/1997 |
Site Ranked Using the AHRM |
Site reranked. Changed Population Density Value from 3 to 5; GW Usage Value from 0.1 to 0.8; GW Exposure Index Value from 0.4 to 1; SW Usage Value from 0.5 to 1; and SW Environments from 0 to 2. Former score was 8. |
Scott Pexton |
| 9/15/1998 |
Site Characterization Workplan Approved |
Letter sent with approval of Final Site Sampling Plan for Remedial Investigation prepared by CH2MHILL. |
Scott Pexton |
| 1/8/1999 |
Update or Other Action |
Draft Remedial Investigation Report received. Prepared by CH2MHILL. |
Scott Pexton |
| 3/11/1999 |
Update or Other Action |
Letter sent with comments on draft Remedial Investigation Report. |
Scott Pexton |
| 6/23/1999 |
Update or Other Action |
Received Final Remedial Investigation Report (dated May 1999), prepared by CH2MHILL. |
Scott Pexton |
| 10/11/1999 |
Site Ranked Using the AHRM |
Site reranked based on May 1999 Akiak Remedial Investigation Report prepared by CH2MHILL. |
Scott Pexton |
| 3/12/2004 |
Update or Other Action |
File number assigned: 2402.38.002. |
Sarah Cunningham |
| 6/2/2004 |
Update or Other Action |
ADEC received Final Interim Removal Action Plan. |
Beatrice Egbejimba |
| 7/2/2004 |
Update or Other Action |
DEC issued a letter stating the following: DEC has completed review of the document titled: Final Interim Removal Action Plan, Federal Scout Armory, Akiak, Alaska dated March 2004 and offers the following comments.
DEC concurs with the general approach of the plan however, can not provide approval to the plan as written. The plan provides a general approach for the excavation, and handling of impacted petroleum contaminated soil but lacks site specific detail for DEC approval under 18 AAC 75. DEC understands that the AKARNG is performing this action to reduce risk to human health and the environment under 18 AAC 75.330, to provide for a partial cleanup at the site and not achieve cleanup levels. It is presumed that information gathered during this interim action will provide data to be used in determining any future actions required for site clean up.
In conclusion, DEC has no objection to the interim removal approach provided and will defer any further regulatory decisions until review of the data collected from the site work. |
David Pikul |
| 3/15/2005 |
Update or Other Action |
Legal description added per 5/1999 RI |
Debra Caillouet |
| 3/16/2005 |
Update or Other Action |
Staff reviewed the Akiak Federal Scout Amory Installation Action Plan. The plan contains a summary of the actions to date and proposed cleanup strategy. The summary of the actions fairly depicts the results of the site investigation, but the removal action report documenting work conducted last year has not been received yet, little information on the removal action that occurred last year is described in the IAP.
DEC will need to review the removal action report prior to concurring with a clean up strategy. If you could identify when the current structure will be removed that would help to understand the overall time period to complete cleanup. |
Debra Caillouet |
| 3/13/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Debra Caillouet |
| 6/25/2008 |
Update or Other Action |
Staff provided comment on the draft characteriation/delineation work plan |
Debra Caillouet |
| 8/13/2008 |
Update or Other Action |
Staff reviewed the site characterization work plan and provided comment to the AKARNG. |
Debra Caillouet |
| 12/4/2008 |
Document, Report, or Work plan Review - other |
The Secondary Site Characterization report was reviewed and comments sent to the Guard. |
Debra Caillouet |
| 2/19/2009 |
Document, Report, or Work plan Review - other |
Final Secondary Site Characterization, Federal Scout Armory, Akiak. The report provides additional characterization of the nature and extent of the contamination remaining at the Armory. It generally meets the requirements of 18 AAC 75 although a qualifed person did not perform the sampling.
|
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 |
| 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 |
| 2/24/2012 |
Document, Report, or Work plan Review - other |
Comment sent on the draft data gap investigation report. |
Debra Caillouet |
| 2/4/2013 |
Site Characterization Report Approved |
Akiak Federal Scout Readiness Center, Data Gap Investigation Report, January 2013
The investigation defined the areas of the site with soil contamination from diesel range organics (DRO) and gasoline range organics (GRO) remaining. Groundwater has been impacted with DRO and benzene above cleanup levels.
The hydrocarbon risk calculator was used to calculate proposed alternative cleanup levels of 11,555 mg/kg DRO, 1400mg/kg GRO, and 0.06 mg/kg benzene. ADEC has no objection to the use of these soil cleanup levels. Groundwater monitoring is recommended in the report and ADEC concurs.
|
Debra Caillouet |
| 6/10/2013 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 73433 AST. |
Debra Caillouet |
| 10/28/2013 |
Cleanup Level(s) Approved |
Record of Decision |
Debra Caillouet |
| 1/9/2015 |
Cleanup Plan Approved |
Draft Akiak Remedial Action Plan, Federal Scout Readiness Center, December 18, 2014 |
Debra Caillouet |
| 2/24/2015 |
Cleanup Plan Approved |
Final Akiak Remedial Action Plan, Federal Scout Readiness Center, February 12, 2015 - approved and letter sent. |
Debra Caillouet |
| 12/16/2015 |
Document, Report, or Work plan Review - other |
Rec'd draft Akiak 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 Thompson |
| 1/13/2016 |
Document, Report, or Work plan Review - other |
Sent approval letter for the Draft Akiak Remedial Action Report. A total of 132 yd3 of petroleum contaminated soil was removed from the site. The FSRC was moved to access contaminated soil underneath the building; it was replaced post-excavation. Field screening and confirmation analytical samples indicate that the remaining contamination is at levels below cleanup levels. No groundwater samples were collected on either attempts due to lack of groundwater. I have reviewed the draft report and have no comments. |
Danielle Duncan |
| 2/29/2016 |
Long Term Monitoring Established |
Rec'd the Final Akiak Remedial Action Report this date. The first of the 5 year groundwater monitoring/sampling was not completed due to lack of groundwater. Sent approval letter. |
Danielle Duncan |
| 4/27/2017 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 73433 AST. |
Danielle Duncan |
| 8/30/2017 |
Update or Other Action |
Rec'd a letter requesting a Cleanup Complete Determination due to a data transcription error. After researching the groundwater value in question using the original data sheets, it was determined that the high level of DRO (27 mg/L) was detected in the past and was not actually 0.027 mg/L. I relayed this information to the AKARNG via telephone and sent the corresponding laboratory data. The plan now is to see if groundwater can be found - it has been of low volume or non-existent in the past. |
Danielle Duncan |
| 10/4/2017 |
Update or Other Action |
Groundwater wells were dry the week of Sept. 5-7. |
Danielle Duncan |
| 10/6/2017 |
Update or Other Action |
Reviewed the groundwater well log and notes provided by the AKARNG - some data indicates frozen soil, other data says no frozen soil. Their contractor is going to try and sample the wells again. |
Danielle Duncan |
| 10/24/2017 |
Update or Other Action |
The contractor tried to send a team to Akiak last week, but they got weathered in in Bethel for two days. The contractor will try again next year. |
Danielle Duncan |
| 12/20/2017 |
Document, Report, or Work plan Review - other |
Reviewed the draft LTM report and had 1 minor comment. Also emailed the AKARNG re: the depth of the previous well was 13 ft. and the current wells are 10 ft. belowground. Perhaps the current wells are too shallow? I am waiting for a final report before I send the approval letter. |
Danielle Duncan |
| 4/12/2018 |
Site Characterization Report Approved |
Approved the Final Akiak 2017 Long-Term Monitoring Report this date. There has been insufficient groundwater for sampling for sampling years 2015 (2 attempts), 2016 (1 attempt), and 2017 (2 attempts, but 1 was thwarted due to poor weather/aviation conditions).
The report concludes that Eagle Eye will continue to attempt annual groundwater sampling. The first 3 years of the 5 years of LTM have been completed, however, insufficient groundwater for sampling or no groundwater at all has been found during field expeditions. As discussed, possible options to acquire groundwater data are submitting low volume samples and/or drilling the wells deeper. As also discussed, more information is needed on the status of groundwater in Akiak and whether the 1998 documentation of polluted groundwater is factual or perhaps represented an active permafrost layer.
|
Danielle Duncan |
| 8/30/2018 |
Update or Other Action |
Per the consultant, the wells are still dry. Hopefully, the AKARNG will get funding to dig deeper wells in Federal FY19. |
Danielle Duncan |
| 2/11/2019 |
Site Characterization Report Approved |
Approved the Draft Akiak 2018 Long-Term Monitoring Report this date. The report documented the results of the 2018 field season and fourth year of LTM. No measureable groundwater was observed in the wells and no samples were collected. |
Danielle Duncan |
| 5/7/2019 |
Site Characterization Workplan Approved |
Reviewed and approved the Remedial Action Work Plan Addendum, Akiak Federal Scout Readiness Center this date. There has been insufficient groundwater for sampling for sampling years 2015 through 2018. As a result, the Alaska Army National Guard has contracted with Eagle Eye Electric, LLC to either drill the existing wells deeper or decommission the existing wells and install new ones using a GeoProbe drill. The existing wells are at 10 feet (ft.) belowground. If new wells are installed, they will be installed at a minimum depth of 13 ft. and/or the depth to permafrost and/or water. The presence/absence of permafrost and other characteristics will be noted. New wells, if installed will be constructed with GeoProbe 2.0 inch Slim prepack wells. Once water is located, the five year long-term monitoring will begin again. |
Danielle Duncan |
| 7/12/2019 |
Update or Other Action |
Per the AKARNG, re-drilling the wells has been authorized and a final work plan should be received soon. |
Danielle Duncan |
| 8/6/2019 |
Update or Other Action |
New deeper groundwater monitoring wells are being installed currently. |
Danielle Duncan |
| 11/27/2019 |
Document, Report, or Work plan Review - other |
On this date, ADEC reviewed the Akiak 2019 Long-Term Monitoring Report submitted by Eagle Eye and dated November 2019. On August 26, 2019, Eagle Eye decommissioned the three existing wells and installed three new wells. During installation of the new monitoring wells, the existing boreholes from the decommissioned wells were advanced to 20 feet bgs. The predominant soil type from 10 to 20 feet bgs was silty sand. Sand was slightly damp at a depth of approximately 12 feet bgs in each, and was wet around 17 feet bgs. Permafrost was not encountered. Wells were set with the top of the screen between 13.7 and 14.6 feet bgs. New wells were developed by bailer and were sampled with a peristaltic pump. A groundwater sample collected from each well (plus a duplicate) contained detectable concentrations of DRO below ADEC Table C groundwater cleanup levels. Benzene and GRO were not detected in any groundwater sample. Groundwater flow was to the east-southeast. |
Grant Lidren |
| 4/17/2020 |
Meeting or Teleconference Held |
On April 17, 2020 new ADEC PM and AKARNG PM held a meeting to discuss site status and plans for field season 2020 and future work. |
Rachael Petraeus |
| 9/15/2020 |
Document, Report, or Work plan Review - other |
On September 15, 2020 ADEC received "AKARNG’s Long-Term Monitoring Work Plan Addendum for the Akiak FSRC" dated September 2020. The work plan includes preparation and production continual groundwater long term monitoring activities and analyzing for diesel range organics and benzene. |
Rachael Petraeus |
| 10/7/2020 |
Site Characterization Workplan Approved |
On October 05, 2020 ADEC approved "AKARNG’s Long-Term Monitoring Work Plan Addendum for the Akiak FSRC" work plan dated October 2020. |
Rachael Petraeus |
| 12/8/2020 |
Document, Report, or Work plan Review - other |
On December 08, 2020 ADEC received an updated and revised workplan. The work plan addition requests for additional LTM for spring and fall 2021. |
Rachael Petraeus |
| 12/11/2020 |
Site Characterization Workplan Approved |
On December 11, 2020 ADEC approved the “Amended FINAL Akiak 2021 Long-Term Monitoring Work Plan Addendum Federal Scout Readiness Center Alaska Army National Guard” dated December 2020. The work plan includes additional sampling during the spring of 2021 |
Rachael Petraeus |
| 8/20/2021 |
Document, Report, or Work plan Review - other |
On August 20, 2021 ADEC received "DRAFT AKIAK 2021 LONG-TERM MONITORING REPORT FEDERAL SCOUT READINESS CENTER ALASKA ARMY NATIONAL GUARD" dated August 2021. The report summarizes groundwater monitoring sampling results. The report is requesting for cleanup complete. |
Rachael Petraeus |
| 9/17/2021 |
Site Characterization Report Approved |
On September 17, 2021, ADEC approved the "DRAFT AKIAK 2021 LONG-TERM MONITORING REPORT FEDERAL SCOUT READINESS CENTER ALASKA ARMY NATIONAL GUARD" dated August 2021. ADEC is requesting a decommissioning groundwater monitoring well work plan. This is the final 2021 LTM report. |
Rachael Petraeus |
| 4/27/2022 |
Document, Report, or Work plan Review - other |
The ADEC received the "AKIAK FSA MONITORING WELL DECOMMISSIONING LETTER WORK PLAN", dated November 30, 2021 and submitted April 14, 2022. The ADEC provided comments in response to the work plan and is waiting for a revised edition of the work plan to be submitted by May 26, 2022. |
Flannery Ballard |
| 5/18/2022 |
Site Characterization Workplan Approved |
The ADEC approved the "AKIAK FSA MONITORING WELL DECOMMISSIONING LETTER WORK PLAN". Field activities will occur in the late spring of 2022 and a report will be submitted to the ADEC following the completion of work. |
Flannery Ballard |
| 7/11/2022 |
Document, Report, or Work plan Review - other |
The AKARNG submitted the report for MW decommissioning activities that took place June 2022. The ADEC is reviewing. |
Flannery Ballard |
| 7/21/2022 |
Site Characterization Report Approved |
The ADEC approved the "Akiak FSRC Monitoring Well Decommissioning Technical Memorandum". The report summarizes the decommissioning activities for MW1A, MW2A, and MW3A. All refuse was disposed of at the local Akiak landfill. The report is uploaded to the database. The site is being considered for closure. |
Flannery Ballard |
| 1/19/2024 |
Cleanup Complete Determination Issued |
The DEC has completed a review of the environmental history at the AKARNG Akiak FSA and soil and groundwater contamination at the site has been cleaned up to concentrations below the approved cleanup levels. |
Lisa Krebs-Barsis |
