Site Report: Commercial Property - 400 West Int'l Airport Road
| Site Name: | Commercial Property - 400 West Int'l Airport Road |
|---|---|
| Address: | 400 West Int'l Airport Road, Anchorage, AK 99501 |
| File Number: | 2100.38.501 |
| Hazard ID: | 4659 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.173369 |
| Longitude: | -149.889929 |
| 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
Petroleum contamination was discovered during construction activities. The source and quantity released are unknown. Removal of contaminated soil was limited due to presence of a building on adjacent property. DRO up to 1,150 mg/kg (this result should be considered estimated with a high bias due to surrogate recovery above criteria) remains in subsurface soil on the west side of the excavation.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 6/20/2008 | Spill Transferred from Prevention Preparedness and Response Program | Site transferred by PERP staff Young Ha. Spill no. = 07239921302; spill date = 8/1/07; substance = diesel; quantity = unknown. | Mitzi Read |
| 7/11/2008 | Site Added to Database | Site added to the database. | Mitzi Read |
| 7/11/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Mitzi Read |
| 7/21/2008 | Update or Other Action | Conducted site visit in preparation for conditional closure letter. Site is paved and new building constructed. Discussed site history and status with PERP staff. Reviewed file including laboratory review checklists. | Keather McLoone |
| 8/13/2008 | Conditional Closure Approved | Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment, and no further remedial action is required at Commercial Property – 400 West Int’l Airport Road. This determination is subject to the following conditions: 1. A Notice of Residual Contamination will be recorded on the ADEC database to document residual contamination remaining on site above the most stringent ADEC cleanup levels. This will serve as notification to future owners/operators of the property of the environmental status of the site and any conditions that apply to future management of contamination. 2. ADEC approval is required prior to off site transport of soil or groundwater in accordance with 18 AAC 75.370 (b). 3. Groundwater wells shall not be installed on this property without prior approval from ADEC. 4. Soil containing residual contamination may not be placed in surface water or other environmentally sensitive areas. This determination is also subject to 18 AAC 75.380 (d) whereby additional investigation and cleanup may be required if new information is discovered that indicates the cleanup described in this decision is not protective of human health or the environment. Site closure (without conditions) will be considered when sampling confirms that soil and groundwater meet the 18 AAC 75 cleanup levels established for this site. | Keather McLoone |
| 8/13/2008 | Institutional Control Record Established | Notice of remaining contamination- Soil contaminated with DRO above the ADEC Table B2 cleanup levels remained in the soil near the property boundary. | Keather McLoone |
| 12/15/2011 | Institutional Control Compliance Review | IC review conducted,staff name changed to IC Unit, 5 year periodic review requirement added, and update the reminder system about the 5 year review. | Evonne Reese |
| 12/11/2013 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 7/8/2015 | Institutional Control Update | Multiple attempts to contact the known responsible party with a reminder of institutional control requirements have been unsuccessful to date. There is no updated contact information available at this time. Reminder system set to follow-up in two years. | IC Unit |
| 6/18/2018 | Institutional Control Compliance Review | IC compliance review conducted. Affiliates information researched and updated. An ICs Verification letter was issued this date. Reminder system set to check-back in one month. If the letter was delivered in that time, future follow-ups will be scheduled for every three years. Letter was received ok. | Kristin Thompson |
| 2/28/2023 | Institutional Control Compliance Review | IC compliance review conducted on this date and a reminder letter was issued to the new property owners. New owners acquired property in 2019. The next compliance review will be in 3yrs. | Jennifer McGrath |
| 6/12/2023 | Institutional Control Update | Contacted by the property owner to let us know that there have been no changes in land use. | Evonne Reese |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| CS Database Notation And Letter To Landowner/RP |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | Standard condition. |
| Groundwater Use Restrictions | Groundwater wells shall not be installed on this property without prior approval from ADEC. |
| Periodic Review | ADEC will conduct a review of site conditions every three years. |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) | Standard condition. |
| Excavation / Soil Movement Restrictions | Soil containing residual contamination may not be placed in surface water or other environmentally sensitive areas. |
| Other | Standard condition. |
No associated sites were found.