Site Report: Quality Asphalt Paving
| Site Name: | Quality Asphalt Paving |
|---|---|
| Address: | 7800 Lake Otis Blvd, Anchorage, AK 99501 |
| File Number: | 2100.26.270 |
| Hazard ID: | 23663 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.149319 |
| Longitude: | -149.835639 |
| 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
Gasoline and diesel tanks removed from the ground in December 1989. Site assessment report not received until November 1992. Ten cubic yards of contaminated soil removed and stockpiled off property at the 240 West 68th Avenue facility. Four samples were collected from the tank excavation and had 8.31 mg/kg to 117 mg/kg TPH by method 418.1. UST and soil cleanup level regulations were not in place at the time of UST removal.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/30/1989 | Underground Storage Tank Site Characterization or Assessment | Site assessment report. Tank excavation may meet TPH cleanup levels, but 10 cubic yard stockpile exceeds site cleanup levels. Four samples were collected from the tank excavation and had 8.31 mg/kg to 117 mg/kg TPH by method 418.1. No BTEX, GRO, or DRO analysis was done. There was not sampling of the product piping or the dispenser island located 15 feet to the east of the tanks. Need further assessment of the site and stockpile needs treatment or confirmation sampling to verify the it now meets site cleanup levels. | Former Staff |
| 4/21/1993 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 77947 Gasoline and diesel. 10 cubic yard contaminated soil stockpile of property at the 240 West 68th Avenue facility. There we no analytical samples collected from the stockpile, but it did show elevated field readings. | Former Staff |
| 4/21/1993 | Site Added to Database | Former Staff | |
| 4/22/1993 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | LCAU date changed DB conversion | Former Staff |
| 11/20/1997 | Update or Other Action | ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: AGGREGATE PRODUCTS, INC. | Former Staff |
| 12/9/2004 | Update or Other Action | Still have not received the requested documentation on the status of the 10 cubic yard contaminated stockpile. | Robert Weimer |
| 10/21/2005 | Update or Other Action | Still have not received the requested documentation on the status of the 10 cubic yard contaminated stockpile. | Robert Weimer |
| 4/24/2006 | Update or Other Action | File number issued 2100.26.270 (FKA L55.165). | Aggie Blandford |
| 10/11/2006 | Update or Other Action | Talked with current owners consultant. He will search for the stockpile and provide written documentation on its status. They plan to conduct some borings at the former tank and piping areas. | Robert Weimer |
| 3/24/2008 | Exposure Tracking Model Ranking | Site ranked on the new Exposure Tracking Model (ETM). The ETM is a new site ranking system that looks at, based on available data, the potential exposure pathways for the contamination remaining at the site. | Robert Weimer |
| 10/28/2011 | Update or Other Action | Still have not received documentation for the stockpile status and results of borings at the former tank and piping areas. | Robert Weimer |
| 6/24/2015 | Update or Other Action | Have not received documentation for the stockpile status and results of borings at the former tank and piping areas. | Robert Weimer |
| 6/30/2016 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 77947 1989 gasoline and diesel tank removal. | Lisa Griswold |
| 7/7/2016 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 77947 1989 gasoline and diesel tank removal. | Lisa Griswold |
| 8/5/2016 | Cleanup Complete Determination Issued | The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with this site. In 1989, two underground storage tanks (USTs) were removed from the property known as Lake Otis Industrial Park Tract A (Plat#85-237). Soil samples collected from along the bottom of the excavation at approximately 10 feet below ground surface indicated low level total petroleum hydrocarbon (TPH) contamination up to 117 mg/Kg. Approximately 10 cubic yards of soil from the excavation were transported offsite. Regulations governing USTs and soil cleanup levels were not in effect at the time of UST removal. However, TPH covers a wide range of petroleum fractions, and the concentration of TPH remaining at this site is considered low. Based on the information provided to date, the fact that the tanks and contaminated soil were removed seventeen years ago, and that low concentrations of petroleum in soil attenuate over time, it has been determined that the any residual petroleum in the soil does not pose an unacceptable risk to human health or the environment and no further site characterization or cleanup are required unless new information becomes available that indicates residual contaminants may pose an unacceptable risk. This site’s status is therefore being changed to "cleanup complete". | Lisa Griswold |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Benzene | < Method 2 Most Stringent | Soil | |
| DRO | < Method 2 Most Stringent | Soil | |
| GRO | < Method 2 Most Stringent | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | |
| 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) |
There are no documents for this site report.
No associated sites were found.