Site Report: ASD Scenic Park Elementary School
|Site Name:||ASD Scenic Park Elementary School|
|Address:||3933 Patterson Street, Anchorage, AK 99504|
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.
A 5,000 gallon Bunker C tank used for heating purposes was removed 6/27-28/00. Stockpiled soils exceeded cleanup levels for DRO, benzene, toluene, and ethylbenzene. 18 cubic yards of contaminated stockpiled soil was transported to ASR for thermal remediation. The UST excavation measured 20 feet by 15 feet with a maximum depth of 15.5 feet below ground surface (bgs). Four confirmation samples from the excavation bottom and sidewall were all ND except for 11 mg/kg DRO. GW was not encountered. Previous investigations indicate GW is located more than 20 ft. bgs.
|Action Date||Action||Description||DEC Staff|
|6/30/2000||Update or Other Action||Approved a request by Shannon & Wislon to transport approximately 20 cubic yards of Bunker C impacted soil to Alaska Soil Recysling for thermal remediation based on stockpile analytical data suppplied for review. Action added by Petrik.||Eileen Olson|
|7/17/2008||GIS Position Updated||Used Google Maps and report Figure 2, Excavation and Stockpile Sample Locations.||Bill Petrik|
|7/17/2008||Site Added to Database||Site added to the database.||Bill Petrik|
|7/18/2008||Update or Other Action||As of 7/18/08 The Shannon & Wilson, Inc. “Underground Storage Tank Assessment, 3933 Patterson Street, Anchorage, Alaska, dated July 2000 and received by the department on 9/12/00 was included in the file. The site was reviewed and entered into the DB. Contamination above cleanup levels was excavated, transported to a treatment facility, and remediated. Post-excavation samples are below cleanup levels. It will be reviewed in detail by a project manager and considered for closure.||Bill Petrik|
|7/18/2008||Site Characterization Report Approved||The CSP reviewed a copy of the Shannon & Wilson "Underground Storage Tank Closure Assessment" dated July 2000 received 9/12/00. Stockpile soil sample results indicated RRO to 6,100 mg/kg, DRO to 32,000 mg/kg, benzene to 0.7 mg/kg, toluene to 11 mg/kg, ethylbenzene to 8.8 mg/kg, and total xylenes to 66 mg/kg. Of four excavation samples comprised of two sidewall and two bottom samples, the only detection for RRO, DRO, and BTEX sampling was 11 mg/kg DRO.||Bill Petrik|
|7/18/2008||Exposure Tracking Model Ranking||Initial ranking with ETM completed.||Bill Petrik|
|7/22/2008||Site Closure Approved||The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed review of the environmental records associated with Scenic Park Elementary School underground heating oil tank (HOT). This site had been contaminated by the release of a hazardous substance; however, based on the information provided to date, ADEC has determined that no further remedial action is required, and that Scenic Park Elementary School HOT can be closed. The hazardous substance contamination has been adequately addressed and does not pose an unacceptable risk to human health or the environment.||Bill O'Connell|
|For more information about this site, contact DEC at (907) 465-5390.|
|No ICs Required|
|Advance approval required to transport soil or groundwater off-site.|
There are no documents for this site report.