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Site Report: AKARNG CSMS Lower Yard

Site Name: AKARNG CSMS Lower Yard
Address: 5300 East Tudor Road, Tudor and Boniface Pkwy., Anchorage, AK 99507
File Number: 2100.38.389
Hazard ID: 3301
Status: Active
Staff: Jenny Gates, 9072628203 jenny.gates@alaska.gov
Latitude: 61.174428
Longitude: -149.783753
Horizontal Datum:

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 contamination. The DOT has operated on site after the army for some time doing the same types of activities: vehicle maintenance etc.

Action Information

Action Date Action Description DEC Staff
6/29/2001 Update or Other Action Received June 2001 Historic Survey, CSMS Facility, Lower Yard, Tudor Road Relay Facility, Automotive Maintenance Shop and Equipment Storage Complex. Former Staff
11/9/2001 Update or Other Action Received November 2001 Soil Cleanup Sampling and Analysis Workplan, CSMS Annex. Former Staff
11/29/2001 Update or Other Action Received October 1999 Phase I and March 2000 Limited Phase II Environmental Baseline Survey. Former Staff
2/27/2002 Update or Other Action Received the February 2002 Contaminated Soils Interim Removal Action Work Plan proposing the removal of approximately 300 cubic yards of DRO contaminated soil from excavation in conjunction with the removal of fuel and sewer lines in 2001 to be treated thermally off site. Former Staff
3/13/2002 Site Ranked Using the AHRM Initial ranking. Elizabeth Stergiou
3/13/2002 Site Added to Database DRO. Former Staff
5/7/2002 Update or Other Action Landowner field changed from MOA to State of Alaska to reflect the correct owner. Changed legal description to reflect correct location. Elizabeth Stergiou
7/24/2002 Interim Removal Action Approved Letter sent to Larry Rodiguez of the Alaska Army National Guard with approval of February 2002 interim removal action plan and conditional approval to transport up to 185 cubic yards of petroleum contaminated soil from the CSMS Lower Yard site to the Alaska Soil Recycling facility in Anchorage. Scott Pexton
11/1/2002 Meeting or Teleconference Held ADEC on-site meeting with Larry Rodriguez, Norm Straub and ADOT to determine future remedial activities at the site. Site Characterization report pending. Analytical results obtained during site characterization was provided at the meeting. Beatrice Egbejimba
12/9/2002 Update or Other Action ADEC received Interim Removal Action reported. Beatrice Egbejimba
1/22/2003 Update or Other Action Letter sent to Norm Straub with information regarding Interim removal action report. The report documents the soil removal and transport of contaminated soil discovered during the removal of a leaking underground fuel pipeline. Approximately 185 cubic yards of contaminated soil discovered in three sections along the pipeline was transported to Alaska Soil Recycling for thermal remediation. No further remedial action is necessary for two of the three excavations areas. ADEC requested the submittal of an additional site characterization work plan by April 7, 2003. Beatrice Egbejimba
7/22/2003 Update or Other Action ADEC sent letter to Norm Straub of AKARNG with information regarding a record amendment letter received June 17, 2003. Beatrice Egbejimba
8/5/2003 Site Number Identifier Changed Changed reckey from 1990210121501 to reflect correct spill date of 3/1/2000. Beatrice Egbejimba
11/10/2003 Update or Other Action ADEC sent letter to Norm Straub of AKANG with approval of workplan received 10/23/03. The plan proposes to advance soil boring at the site to determine the extent of contamination. Six monitoring wells will be installed. Beatrice Egbejimba
3/15/2004 Update or Other Action File number assigned: 2100.38.389. Sarah Cunningham
3/16/2005 Update or Other Action Installation Action Plan for the CSMS Lower and Middle yards has been reviewed and staff is requesting that plans be put in place for additional investigation. A leachfield in lower yard is hypothesized in Phase 1 Section 4.6, "Bathroom facilities and not hooked up to sanitary sewer." A sewer pipe was found during 2002 IRA, that appears to extend south past the fence. Investigation is needed to find the discharge point and to determine if any soil or groundwater contamination exists as a result. Sampling should occur for GRO, DRO, RRO, SVOCs, VOCs, metal and PCBs. As indicated in your discussion of the cleanup strategy for the Lower Yard, the extent of the POL contamination has not been fully defined both in soil and groundwater. The wells that have been placed to date, do not adequately characterize the aquifer characteristics. The wells should be redeveloped to try to remove the turbidity and if that is successful, they should be sampled. It also appears that additional wells should be installed west and south of the fence. These would determine if the contamination has migrated past the fence. The information obtained from these actions should then allow development of a reasoned approach to site cleanup. The location of any drinking water wells close to the facility should be included in this summary. The data for the Middle Yard supports a determination that the site is non-qualifying. No action is required for the middle yard site. Debra Caillouet
11/10/2005 Site Characterization Workplan Approved additional sampling and installation of additional monitoring wells Debra Caillouet
8/24/2006 Update or Other Action staff reviewed reports for two groundwater monitoring events and requested additional site characterization to determine the source of the free product in one well. Debra Caillouet
2/8/2007 Exposure Tracking Model Ranking Debra Caillouet
2/9/2007 Update or Other Action Staff sent a comment letter on the RI report with proposed ACLs and a 350 determination. Debra Caillouet
4/26/2007 Site Characterization Report Approved Staff reviewed groundwater monitoring reports 3-5 The reports show free product being consistantly found at two locations, CSMS2 and CSMS-c. Sampling and analysis of downgradient wells showed DRO below cleanup levels Debra Caillouet
8/17/2007 Update or Other Action Staff sent a letter regarding the proposed industrial cleanup levels Debra Caillouet
1/30/2008 Site Characterization Report Approved Quarterly Monitoring Reports 6 and 7, CSMS Lower Yard, were reviewed. The data suggests that it may be possible to reduce the number of monitoring wells that are sampled at future events. A complete review of the groundwater monitoring along with the data obtained from the ROST/LIF investigation of the site should provide enough information to support a decision. Debra Caillouet
2/28/2008 Site Characterization Report Approved Quarterly Sampling Reports Nos. 8 and 9, Combined Support Maintenance Shop (CSMS) Lower Yard The reports document continuing diesel range organic contamination present in two wells above 18 AAC 75.345 levels. DEC has requested several times that the AKARNG and DEC meet to discuss these results and that DEC be provided with a copy of the report from the ROST/LIF investigation. These requests were made prior to your involvement with this site. At your convenience, please provide me a copy of the ROST/LIF report and contact me at 269-0298 to set up a meeting to discuss further remedial action at this site. Debra Caillouet
4/7/2008 Site Characterization Report Approved Staff reviewed and approved the draft Site investigation Report, ROST, February 2008 Debra Caillouet
6/2/2008 Site Characterization Report Approved Quarterly Sampling report #10 was reviewed and approved. Letter sent to the AKARNG requesting plan for cleanup of the site. Debra Caillouet
9/9/2008 Update or Other Action Comments were sent the AKARNG on a draft Record of Decision Debra Caillouet
2/3/2010 Meeting or Teleconference Held Staff participated in the Installation Action Plan meeting. Debra Caillouet
1/31/2011 Document, Report, or Work plan Review - other Interim Action Work Plan, Alaska National Guard, Tudor-CSMS-Lower Yard, January 27, 2011 Debra Caillouet
2/22/2011 Document, Report, or Work plan Review - other Gap Analysis Work Plan, Alaska National Guard, Tudor-CSMS-Lower Yard, February 15, 2011 Debra Caillouet
4/21/2011 Document, Report, or Work plan Review - other Gap Analysis, Alaska National Guard, CSMS Lower Yard-Tudor Road, Anchorage, April 11, 2011 Debra Caillouet
4/25/2011 Document, Report, or Work plan Review - other Soil Boring Installation Work Plan, Alaska Natonal(sic) Guard, CSMS Lower Yard—Tudor Road Debra Caillouet
5/11/2011 Document, Report, or Work plan Review - other Soil Boring Installation Work Plan, Alaska National Guard, CSMS Lower Yard—Tudor Road, April 25, 2011. The Alaska Department of Environmental Conservation (DEC) received the referenced draft work plan on May 9, 2011 with a schedule for execution of the work to occur on May 2-3, 2011. Please revise the schedule as per 18 AAC 75.345 before beginning site characterization the plan must be approved. The groundwater at the site is between 31 and 14 feet below ground surface. Installing a 2-feet long bentonite slurry/native material just below the active layer at 6-feet below ground surface will not seal the borehole to prevent migration of contamination. Once the final depth of the boring is reached the entire boring is to be filled with bentonite or equivalent. This site is known to contain silt layers that do prevent migration of contamination to the groundwater and a boring through that will create a preferential pathway from soil to groundwater for contaminant migration. Debra Caillouet
5/11/2011 Document, Report, or Work plan Review - other Gap Analysis, Alaska National Guard, CSMS Lower Yard-Tudor Road, (Second round of field monitoring) Anchorage, April 29, 2011 DEC has no comment on the report. Debra Caillouet
5/12/2011 Document, Report, or Work plan Review - other Soil Boring Installation Work Plan, Alaska National Guard, CSMS Lower Yard—Tudor Road, May 11, 2011 approved. Debra Caillouet
6/17/2011 Document, Report, or Work plan Review - other Gap Analysis, Alaska National Guard, CSMS Lower Yard-Tudor Road, (Third round of field monitoring) Anchorage, June 15, 2011 DEC has no comment on the report. Debra Caillouet
8/9/2011 Site Characterization Report Approved Draft Site Characterization Report, Alaka National Guard, CSMS Lower Yard-Tudor Road, June 21, 2011 ADEC recommends that the landowner be advised of the contamination and be included in discussions of how the contamination will be addressed. Please copy me on correspondance with the landowner. Debra Caillouet
8/22/2011 Site Characterization Report Approved Gap Analysis, Alaska National Guard, CSMS Lower Yard-Tudor Road, (Second round of field monitoring) Anchorage, August 11, 2011 DEC has no comment on the report. Debra Caillouet
12/17/2015 Update or Other Action Staff changed to Danielle Duncan and hard file transferred to the Juneau office. Kristin Thompson
12/23/2015 Update or Other Action Per AKARNG: the site fell off the IAP in 2011. They are planning on putting it back on the IAP this year and spent some time last year pulling everything together documents to staff to legal - there may be multiple PRPs for this one. Danielle Duncan
6/29/2016 Meeting or Teleconference Held Met with the army to discuss the site. The DOT has been operating at the site for some time so there are PRP issues unlikely to be resolved quickly. Danielle Duncan
6/22/2017 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74276 CSMS Lower Yard. Danielle Duncan
1/15/2019 Update or Other Action The AKARNG is preparing a Record of Decision. Danielle Duncan

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

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Description Details

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
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