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Site Report: ADOT&PF Homer Airport HOT (Kachemak Dr.)


Site Name: ADOT&PF Homer Airport HOT (Kachemak Dr.)
Address: 2156 Kachemak Drive, Homer Airport, Homer, AK 99603
File Number: 2314.38.004
Hazard ID: 3032
Status: Cleanup Complete
Staff: ,
Latitude: 59.639702
Longitude: -151.485343
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

During the removal of an underground storage tank system, diesel contaminated soils and groundwater were encountered associated with a 3,000 gallon heating fuel oil tank. The elevation is ~20 meters (67 feet). See related LUST site: ADOT&PF Homer Airport Manitenence # 1998230032001 for removal of 1,000 gasoline tank. No GW encountered during gasoline tank removal. Analytical showed detected contamination was all below ADEC most stringent cleanup levels. LUST portion of the site was closed.

Action Information

Action Date Action Description DEC Staff
9/27/2001 Site Added to Database Diesel contamination. No Longer Assigned
9/28/2001 Site Ranked Using the AHRM Initial ranking. Don Fritz
10/2/2001 Update or Other Action Staff reviewed Closure Assessment Report for heating oil tank. Don Fritz
1/7/2004 Update or Other Action File Number assigned and entered into Fileroom DB and CS DB by Alyce Hughey on 1/7/04. Alyce Hughey
5/6/2005 Preliminary Assessment Approved Reviewed 1998 UST Closure Assessment. Letter to be sent ot ADOT for any data/reports completed since '98 removal. Heating fuel tank excavation and stockpile needs additional assessment/excavation & remediation. Analytical shows contaminant levels > than ADEC cleanup levels. GW encountered in heating fuel tank excavation. Set up file for regulated gasoline tank. Detected contamination at gasoline tank all below ADEC cleanup levels. No GW encountered during gasoline tank removal. Gasoline tank OK to close. Donald Seagren
5/7/2005 Update or Other Action Site inspection. The facility was closed for the weekend, so nothing could be observed. Donald Seagren
5/9/2005 Site Number Identifier Changed Changed Spill Date from 10/15/2000 to 11/16/1998. No Longer Assigned
12/19/2006 GIS Position Updated Using Figures 1, 2, and 3 from the Closure Assessment Department of Transportation and Public Facilities, Homer Airport Maintenance Facility, from Shannon & Wilson, Dated December 1998, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes No Topo Basemap, Black and White Aerial Photo, TopoZone Pro Street Maps, on a Medium Size Map, View Scale 1:9,840, Coordinate Datum NAD83. High Degree of Confidence in accuracy of location. Alyce Hughey
4/6/2007 Exposure Tracking Model Ranking Donald Seagren
6/5/2007 Update or Other Action Telephone call with Kevin Jones (2355217) current airport manager. He was not aware of any site assessment or additional cleanup that was done. He would look through the files to see if there is any documentation. The stockpile generated during the UST removal is no longer on site. He thinks it may have been thermally remediated at the Homer DOT Highway maintenance station years ago when they cleaned up that site. There's no documentation of this that anyone can find. Donald Seagren
6/7/2007 Update or Other Action It appears that neither DEC nor DOT has any additioanl information on the planned 00 site assessment & cleanup. An RFP has been developed and sent the the contracting section to conduct a site assessment to determine current site conditions. Once the report is received, DOT will be consulted on any cleanup/remediation that may be required to bring the site to closure. Donald Seagren
6/10/2008 Update or Other Action Site Transferred from Don Seagren to Linda Nuechterlein per Linda Nuechterlein. Alyce Hughey
4/1/2009 Update or Other Action A file review revealed that remaining contamination at this site has not been adequately characterized. It is reported that ADOT plans to close the old maintenance shop but no schedule has been established yet. This site is on the CIP, State-Owned sites list. The CSP tenatively plans to conduct further characterization either in FY10, or in conjuction with the decommissioning of the old maintenance shop. Linda Nuechterlein
6/10/2009 Exposure Tracking Model Ranking I recreated an initial ETM ranking for source area id: 74007 that was deleted, using the initial 4-6-07 ranking information from the file. Pam Clemens
6/15/2009 Update or Other Action Site to be transferred to Paul Horwath as per Linda Nuechterlein. Possible FY10 CIP funding for more charcterization of the former area of the 3,000 gallon HOT. Pam Clemens
1/12/2010 Update or Other Action Site transferred from Paul Horwath to Don Fritz, per Paul Horwath. Alyce Hughey
2/23/2010 Update or Other Action Phone conversation with Kevin Jones (907-235-5217) or (399-4069). I explained to Kevin our interest in undertaking assessment actions at the former heating oil site. Kevin is the airport manager. Kevin told me that the depth to groundwater is rather shallow in the area, just a few feet. Kevin stated that there is no stockpile remaining at the south end of the runway, where the 44 cubic yards of impacted soil were supposedly staged. Kevin believes these soils may have been taken over to the ADOT- Homer site where they attempted to bioremediate soils and eventually thermally treated them. Kevin told me that the area is now paved to the north of the buildings. The aboveground fuel tank is outside of the fence from the airport proper. Miscellaneous debris exists in the area of the former tank, Kevin told me that this could be cleared out for our assessment activities with little effort. Kevin will take several photos for me and e-mail them to me on Thursday. Kevin told me that Melvin Kremer (235-5215) should have historical knowledge regarding the site. Kevin asked that I contact Ken Puch (283-4665 or 394-0498) who works for ADOT&PF Building Maintenance. I spoke with Ken who asked that we keep him informed with regards to our proposed actions. Don Fritz
3/24/2010 Update or Other Action RFP issued to term contractorsfor additional site characterization activities for review/response. Don Fritz
4/22/2010 Update or Other Action Respond to questions raised by our term contractors pertaining to our RFP Don Fritz
5/4/2010 Update or Other Action Review contractors proposals, rank, obtain Paul and Alyce rankings, and provide to Dennis. Don Fritz
5/4/2010 Site Characterization Workplan Approved Dennis notifies term contractors that contract will be awarded to Shannon & Wilson. Their bid proposal is the work plan. Don Fritz
5/25/2010 Update or Other Action NTP issued for additional assessment work to Shannon & Wilson Don Fritz
6/9/2010 Update or Other Action Site assessment actions begin with borings drilled at the site. Groundwater not encountered in one boring, encountered but appears clean in another, and at the tank site, contamination extends below the perched groundwater. Don Fritz
12/28/2010 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74007 UST removal. Don Fritz
11/16/2011 Update or Other Action Site transferred from Don Fritz to Peter Campbell per Paul Horwath. Alyce Hughey
4/3/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74007 UST removal. Paul Horwath
4/5/2012 Update or Other Action For future use and reference, a Cleanup Complete Determination letter was not issued and placed in the administrative file located in the Soldotna Office for this State owned and operated property. Alyce Hughey
4/5/2012 Cleanup Complete Determination Issued Cleanup Complete Determination Issued. Residual soil contamination remains in the area of the former 3,000-gallon underground heating fuel oil tank removed in November of 1998. Soil concentrations exceed the Table 1B Method Two - Soil Cleanup Levels 'Migration to Groundwater' with DRO at 417 to 10,300 mg/kg at 3 to 9.5 feet bgs, Benzene at 0.0609 to 4.88 mg/kg at 5.5 to 9.5 feet bgs, Toluene at 26.0 mg/kg at 5.5 feet bgs, Ethylbenzene at 18.9 mg/kg at 5.5 feet bgs, and xylenes at 99.5 mg/kg at 5.5 mg/kg. The shallow groundwater is not used as a drinking water source. The entire airport is connected to the City of Homer's municipal water system. The soil quality data submitted to date is located in the December 1998 UST Closure Assessment ADOT&PF Homer Airport Maintenance Facility, prepared by Shannon & Wilson, and in the November 2010 Site Characterization ADOT&PF Homer Airport HOT (Kachemak Drive), Homer, Alaska, prepared by Shannon & Wilson. Paul Horwath
6/19/2013 Institutional Control Record Established Institutional Controls established and entered into the database. Paul Horwath

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
BTEX Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

There are no documents for this site report.

Missing Location Data

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