Site Report: Lake and Pen Air UST #2
| Site Name: | Lake and Pen Air UST #2 |
|---|---|
| Address: | 1740 East 5th Avenue, Anchorage, AK 99501 |
| File Number: | 2100.26.598 |
| Hazard ID: | 26547 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.216806 |
| Longitude: | -149.849168 |
| 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
In November 2015, three underground storage tanks (USTs) were closed and removed from the property. UST #2 (10,000 gallons; listed as gasoline and recently used for jet A) had detectable levels of DRO, RRO, toluene and lead but were below ADEC Method 2 cleanup levels. Ethylene dibromide was detected above ADEC cleanup levels at 12 feet below ground surface. UST #1 (2,000 gallons; listed as diesel, and recently used for avgas) and UST #3 (2,000 gallons; listed as used oil and recently used for used oil) had detectable levels of diesel range organics (DRO), residual range organics (RRO), gasoline range organics, benzene, toluene, ethylbenzene, and total xylenes, however they were all under ADEC Method 2 cleanup levels and are being tracked separately under Hazard ID 26546, file no. 2100.26.597.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 4/20/2016 | Site Added to Database | A new site has been added to the database | Lisa Griswold |
| 4/22/2016 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST site created in CSP database for source area USTs, 79907 | Lisa Griswold |
| 4/27/2016 | Potentially Responsible Party/State Interest Letter | PRP letter sent to operator of site. | Lisa Griswold |
| 4/27/2016 | Document, Report, or Work plan Review - other | Lake and Pen Air UST Removal Final Site Assessment Report reviewed. USTs 1 and 3 have contaminants all below ADEC method 2 cleanup levels in soil. UST 2 has Ethylene Dibromide at 12 feet below ground surface at .00027 mg/Kg in soil. Consultant requests closure. ADEC disagrees and requests a release investigation due to the Ethylene Dibromide being above the ADEC method 2 cleanup level of .00016 mg/Kg. | Lisa Griswold |
| 4/28/2016 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79907 name: UST #2 | Lisa Griswold |
| 10/3/2016 | Update or Other Action | ADEC reviewed Restoration Science & Engineering LLC's Lake and Pen Air UST Removal Final Site Assessment letter on September 26, 2016. After further review ADEC has concluded that the contamination left at the Land and Pen Air UST #2 is de minimis and the site will be evaluated for closure. | Lisa Griswold |
| 10/5/2016 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Administrative action addition for grant reporting purposes. | Evonne Reese |
| 10/5/2016 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 79907 UST #2. | Lisa Griswold |
| 10/7/2016 | Cleanup Complete Determination Issued | Lisa Griswold |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Ethylene dibromide | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | 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) |
| Hazard ID | Site Name | File Number |
|---|---|---|
| 26546 | Lake and Pen Air UST #1 and #3 | 2100.26.597 |