Site Report: Residence - 264 Stone Road
| Site Name: | Residence - 264 Stone Road |
|---|---|
| Address: | 264 Stone Road, Ester, AK 99725 |
| File Number: | 100.38.246 |
| Hazard ID: | 26168 |
| Status: | Active |
| Staff: | Shawn Tisdell, 9074512752 shawn.tisdell@alaska.gov |
| Latitude: | 64.856608 |
| Longitude: | -148.014783 |
| Horizontal Datum: | WGS84 |
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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
A release was reported on November 2, 2009, of an unknown amount of heating oil from a heating oil tank system into the crawlspace beneath the residence at 264 Stone Road. A crawlspace ventilation system was installed in May 2010, to reduce vapors in the house. In August 2014, a section of the house was removed and an unreported volume of contaminated soil was excavated and placed in a land farm on the property; additional contaminated soil remaining near the house continued to impact indoor air quality. In response, a vapor mitigation system was installed in the crawlspace to improve the indoor air quality.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/9/2013 | Spill Transferred from Prevention Preparedness and Response Program | Spill transferred by PERP staff John Ebel. Spill no. 09309930603; spill date = 11/2/09; substance = diesel; quantity = unknown; source = valve and fittings for 500-gallon above ground heating oil tank in crawl space; PERP file no. 100.02.155. | Mitzi Read |
| 12/10/2013 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 12/11/2013 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79565 name: 500-Gallon Heating Oil AST in Crawlspace | Mitzi Read |
| 12/13/2013 | Potentially Responsible Party/State Interest Letter | PRP letter sent to Federal Home Loan Mortgage Corp. (Freddie Mac) | Bill Janes |
| 4/28/2014 | Document, Report, or Work plan Review - other | Received a revised work plan for clean up and vapor mitigation from a new owner of the property. | Willett Boger |
| 8/19/2014 | Update or Other Action | New owner of property recorded. | Willett Boger |
| 8/28/2014 | Site Visit | Site visit to check on excavation of main spill area after removal of section of the house. Check the location and conditions for a land farm on the property. | Willett Boger |
| 8/28/2014 | Update or Other Action | Updated the affiliates section of database to reflect new owner and responsible party. | Willett Boger |
| 9/3/2014 | Potentially Responsible Party/State Interest Letter | PRP letter sent to the current owner who has started some clean up actions. | Willett Boger |
| 9/18/2014 | Update or Other Action | Received a drawing for a vapor mitigation - Soil Vapor Extraction system put together by contractor for the property owner. | Willett Boger |
| 12/14/2016 | Update or Other Action | DEC contacted RP for site update. RP has installed a vapor extraction system consisting of a vertical and horizontal loop of perforated pipe tied to a fan. The fan outputs contaminated air through a chimney chase. The contaminated soil was covered with a vapor barrier. | Shawn Tisdell |
| 3/7/2017 | Update or Other Action | Letter sent inviting RP to participate in the home heating oil pilot program. March 21, 2017 deadline for response. | Shawn Tisdell |
| 4/10/2017 | Meeting or Teleconference Held | DEC staff talked with RP. Verbal approval was provided for participation in the HHOT pilot program. A site visit will be scheduled within the month. | Shawn Tisdell |
| 9/20/2017 | Site Visit | DEC staff observed and field screened a vapor mitigation system in the house crawlspace and a soil landfarm in the yard near the house. No petroleum odor was observed in house. VOCs were screened with a PID at less than 100 ppb throughout the house. These levels are low and suggest that the house was not being significantly impacted by vapor intrusion. Laboratory air testing is necessary to verify PID screening. The mitigation system was operating and a vapor barrier (VB) was extended across the former contaminated area. Pressure beneath the VB was the same as above the barrier indicating that it was not pulling sufficient vacuum to control potential soil vapor movement into the crawlspace. Soil taken from the center of the landfarm just above the bottom liner was tested using the PID headspace method. 144 ppm was measured indicating that the soil should undergo additional remediation before a confirmatory lab sample is collected. | Shawn Tisdell |
| 10/26/2017 | Update or Other Action | Letter sent to RP summarizing site visit observations and providing site management recommendations. These recommendations include adjusting the vapor mitigation system, collecting an indoor air sample and aerating the contaminated soil in the landfarm. | Shawn Tisdell |
| 5/29/2019 | Update or Other Action | DEC letter sent to RP requesting response by June 6th, 2019 to set up a site visit to determine current site conditions and discuss a site closure pathway. | Shawn Tisdell |
| 1/14/2021 | Meeting or Teleconference Held | DEC talked with responsible party, discussed current site conditions and pathway to site closure. No fuel odors have been observed in the house and the vapor mitigation system continues to operate as installed. The contaminated soil was removed from the location where it had originally been placed after it was excavated from beneath the house. It has been moved to another area on the property and covered with two to three feet of large rock. DEC requested site access to conduct a site visit in late summer or early fall to observe new location. RP agreed to request. | Shawn Tisdell |
| 2/23/2021 | Workplan Requested | Letter emailed to responsible party outlining additional work needed to move the site towards closure. A March 22, 2021 deadline was indicated to respond to the letter. Additional work includes delineation of contaminated soil near the house, sampling indoor air without the active mitigation system in operation, sampling the contaminated soil stockpile and sampling soil beneath the former and current soil stockpile locations. | Shawn Tisdell |
| 8/29/2023 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 79565 500-Gallon Heating Oil AST in Crawlspace. | Shawn Tisdell |
| 11/4/2024 | Potentially Responsible Party/State Interest Letter | A notification letter was sent to newly identified landowners of the site property requesting the new owners contact the DEC. | Shawn Tisdell |
Contaminant Information
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Control Type
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Requirements
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There are no documents for this site report.
No associated sites were found.