Site Report: Residence - 2030 Charlijo Loop HHOT
| Site Name: | Residence - 2030 Charlijo Loop HHOT |
|---|---|
| Address: | 2030 Charlijo Loop, Fairbanks, AK 99709 |
| File Number: | 100.38.181 |
| Hazard ID: | 1072 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.887324 |
| Longitude: | -147.848581 |
| 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
ADEC received information on this site in November of 2004. In August 2000, Shannon & Wilson was hired by the current owner to field screen the indoor air at the subject property. The owner stated that the occupants had detected fuel odors throughout the house since about 1990 or 1993. The indoor odor was apparently strongest near the laundry room, where access to the crawl space is located. Heating oil for the residence is stored in a 1000-gallon buried tank on the south side of the house; the furnace is in the northwest corner of the garage. The supply and return lines run within the crawl space along the wall adjacent to the attached garage. In about 1993 a cracked fitting on the supply line near the northeast corner of the crawlspace was repaired. In August 2001, Bryan Borjesson performed an assessment of the residence and provided corrective action recommendations. During that time, approximately 20 cubic yards of soil were removed from an approximately 10- by 15-foot area by 4 feet deep near the northeast corner or the crawlspace adjacent to the garage. Three layers of perforated pipe and clean soil backfill were placed in the excavation. The top pipe layer was set on the ground and covered with plastic sheeting. The piping was connected to a blower motor that exhausted air from the soil to the outside. The final disposition of the 20 cubic yards of contaminated soil is unknown.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 11/22/2004 | GIS Position Updated | The source of the locational information was a site map in the report. TopoZone Pro and ArcGIS were use to determine locational information with the NAD 27. | Deborah Williams |
| 11/22/2004 | Site Added to Database | DRO contamination from a home heating oil tank. | Deborah Williams |
| 11/22/2004 | Site Ranked Using the AHRM | Preliminary ranking. | Deborah Williams |
| 12/29/2004 | Institutional Control Record Established | ADEC received the proof of the recording of the deed notice. The soil vapor extraction (SVE) system will be operated and maintained until such time that it is no longer effective (as determined by ADEC) in treating contamination at the site. In the event the SVE system is shut off, the indoor air pathway shall be re-evaluated. In accordance with 18 AAC 75.325(i), ADEC approval shall be obtained prior to removal and/or disposal of soil or groundwater from this site to an off-site location. The on-site drinking water well will be sampled in the summer of 2005 and analyzed in accordance with Environmental Protection Agency (EPA) Method 524. The chemicals of concern in future sampling events shall be determined based on 2005 sample results. In accordance with 18 AAC 75.380(d)(1), additional investigation and cleanup may be required if new information is discovered which leads the ADEC to make a determination that the cleanup described in this decision is not protective of human health, safety, and welfare or the environment. Contaminant levels must reach final cleanup levels before ADEC will consider Site Closure action and removal of institutional controls. | Deborah Williams |
| 1/5/2005 | Conditional Closure Approved | ADEC issued a no further remedial action planned determination for the site located at 2030 Charlijo Loop site. The soil vapor extraction system shall remain active until such time that it is no longer effective (as determined by ADEC) in treating contamination at the site. | Deborah Williams |
| 1/5/2005 | Long Term Monitoring Established | Long-term monitoring has been established for the drinking water well located on-site. | Deborah Williams |
| 12/14/2005 | Update or Other Action | Received sample results for the drinking water well sample that was collected on November 29, 2005. The water sample was analyzed for BTEX using Method 524. The results were all non-detect for BTEX. | Deborah Williams |
| 5/5/2011 | Institutional Control Compliance Review | IC review conducted, staff changed to IC Unit, reminder system initialized, and IC requirement added where we follow up with the RP and verify that site conditions remain the same that the SVE system is still running. | Evonne Reese |
| 1/2/2013 | Update or Other Action | Site symbol visually adjusted using ArcGIS.com and documents found in the file. | Laurel Gale |
| 12/23/2013 | Institutional Control Update | Set the internal reminder system to send the reponsible party an IC reminder letter regarding the vapor extraction system. | Evonne Reese |
| 5/27/2014 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 6/17/2014 | Institutional Control Update | IC reminder letter returned by the post office due to outdated contact info. Found the new landowner on the FNSB tax assessors webpage and updated the info in the Affiliates section. A new letter will be issued. | Evonne Reese |
| 7/28/2014 | Institutional Control Update | An IC reminder letter was issued to the new landowner on this date. | Kristin Thompson |
| 8/4/2014 | Institutional Control Periodic Reporting | DEC received a letter from the responsible party in response to the IC reminder letter. The SVE system is still operational. Land use conditions remain the same. Reminder system reset to follow-up again in five years' time. | Kristin Thompson |
| 9/13/2019 | Institutional Control Compliance Review | DEC received a letter from the responsible party in response to the IC reminder letter. The SVE system is still operational. Land use conditions remain the same. Reminder system reset to follow-up again in one year as per IC requirements. | Mossy Mead |
| 9/16/2024 | Institutional Control Compliance Review | IC compliance review completed on this date. An IC reminder letter was issued to the landowner. The next review will be annually. | Gaige Robinson |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | |
| Benzene | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| Notice of Environmental Contamination | A deed notice filed at the Fairbanks Recorder’s Office regarding the nature and extent of contamination remaining at the site shall remain attached to the property until soil contamination no longer exceeds ADEC cleanup levels. A notice will also be entered into the ADEC’s Contaminated Sites Database. |
Requirements
| Description | Details |
|---|---|
| Other | The soil vapor extraction (SVE) system will be operated and maintained until such time that it is no longer effective (as determined by ADEC) in treating contamination at the site. In the event the SVE system is shut off, the indoor air pathway shall be re-evaluated. |
| Advance approval required to transport soil or groundwater off-site. | In accordance with 18 AAC 75.325(i), ADEC approval shall be obtained prior to removal and/or disposal of soil or groundwater from this site to an off-site location. |
| Periodic Review | Contact the RP annually to verify that the soil vapor extraction is still operating and that other site conditions have not changed. |
No associated sites were found.