| Action Date |
Action |
Description |
DEC Staff |
| 3/13/2008 |
Potentially Responsible Party/State Interest Letter |
PRP/State Interest Letter sent by PERP staff Frank Wesser on March 13, 2008 to residence owner. |
Alyce Hughey |
| 5/15/2014 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transferred by PERP staff Frank Wesser. Spill number 08269907101; spill date in PERP database = 3/11/2008 (discovery date = 3/11/2008); substance = diesel; quantity ~380 gallons; source = 500-gallon AST HHO tank, Fuel line failure. |
Alyce Hughey |
| 5/23/2014 |
Site Added to Database |
A new site has been added to the database |
Alyce Hughey |
| 5/27/2014 |
Update or Other Action |
The Alaska Department of Environmental Conservation (ADEC) Contaminated Sites Program (CSP) completed its review of the site. In March of 2008, roughly 400 gallons of heating oil were released from a 500-gallon aboveground storage tank (AST). A remedial action was performed sometime between March and October of 2008 to address the contamination. The excavation was completed to approximately 15 feet below ground surface (bgs). The excavation was discontinued to the west because of its proximity to the house foundation. Confirmation soil samples collected from the excavation exhibited GRO at 5,500 mg/kg, DRO at 11,500 mg/kg, benzene at 0.343 mg/kg, toluene at 15.9 mg/kg, ethylbenzene at 52.9 mg/kg, and total xylenes at 279.1 mg/kg; all of which exceed their respective cleanup levels. This information was obtained from a hand drawing and analytical results. A report was never received. In April of 2014, a drinking water sample was collected from a drinking water well located approximately 25 feet west of the original spill; GRO, DRO, and xylenes were detected below the ADEC cleanup levels. |
Joshua Barsis |
| 5/27/2014 |
Potentially Responsible Party/State Interest Letter |
PRP/State Interest Letter sent by CS staff on May 27, 2014. |
Joshua Barsis |
| 5/27/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79634 name: 500-Gallon Aboveground HOT Fuel Line |
Joshua Barsis |
| 10/13/2014 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79634 500-Gallon Aboveground HOT Fuel Line. |
Joshua Barsis |
| 10/29/2014 |
Update or Other Action |
Sent a letter on this day to provide the RP with a site summary, and to document the data gaps that currently exist. Data gaps include (1) the contaminated soil stockpile, which was generated during the 2008 excavation, will need to be tested, remediated, and/or disposed of offsite, (2) the nature and extent of contamination remains undefined, and (3) there is a potential for vapor intrusion (VI) that needs to be investigated or further researched. |
Joshua Barsis |
| 6/2/2015 |
Site Visit |
Performed site visit on this day. Stockpile vastly contaminated. Water sample collected from drinking water well. Analytical results pending. |
Joshua Barsis |
| 3/30/2016 |
Document, Report, or Work plan Review - other |
Reviewed the Site Investigation Work Plan, dated March 28, 2016. Proposed activities consist of advancing nine soil borings, three of which will be completed as groundwater monitoring wells, and collecting soil and water samples as appropriate. Additionally, one 6-liter suma-canister will be used to collect an indoor air sample. |
Joshua Barsis |
| 8/30/2016 |
Document, Report, or Work plan Review - other |
Reviewed the Site Investigation Report Revision 0, dated August 2016. Nine soil borings were advanced to groundwater; three of which were completed as groundwater monitoring wells. Generally, two soil samples were collected from each boring, one from the vadose zone and one from the highest field screening location. In addition to the soil and water sampling activities, an indoor air sample was collected from the basement kitchen, adjacent to the spill area. All soil and water samples were analyzed for gasoline range organics (GRO), diesel range organics (DRO), and benzene, toluene, ethylbenzene, and xylenes (BTEX). Water samples were also analyzed for polynuclear aromatic hydrocarbons (PAHs). Air samples were only analyzed for BTEX.
Results showed that DRO was present in the subsurface soils up to 668 milligrams per kilogram (mg/kg). All soil results were below ADEC cleanup levels at the soil/groundwater interface. Only the source area well, MW-03, had DRO exceedances above Table C groundwater cleanup levels at 3.65 milligrams per liter (mg/l). Benzene, toluene, ethylbenzene and xylenes were detected in the air sample at 2.3 micrograms per cubic meter (ug/m3), 41 ug/m3, 2.7 ug/m3, and 12 ug/m3, respectively, all of which are below ADEC target levels for residential indoor air.
Several report deficiencies were identified; mainly no methanol preservation for any samples, and no PAH data in the soil. All GRO/BTEX data rejected. Additional investigation required. |
Joshua Barsis |
| 8/10/2018 |
Workplan Requested |
Sent letter on this day requesting work plan by September 15, 2018. See file for letter. |
Joshua Barsis |
| 7/21/2021 |
Update or Other Action |
J. Fix assigned as new Project Manager. |
Julie Fix |
