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Site Report: MOA - Fire Station #6

Site Name: MOA - Fire Station #6
Address: 1307 Patterson Street, Anchorage, AK 99504
File Number: 2100.26.322
Hazard ID: 23692
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 61.209298
Longitude: -149.747777
Horizontal Datum:WGS84

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

Lots 31 & 32, Block 2, Chester Valley Subdivision.

Action Information

Action Date Action Description DEC Staff
10/16/1994 Site Visit FI; Field inspection. Former Staff
12/7/1994 Site Added to Database Former Staff
12/7/1994 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77779 ADD; Site added to database. Former Staff
12/8/1994 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; LUST corrective action underway. : LCAU date changed DB conversion Former Staff
1/26/1995 Leaking Underground Storage Tank Corrective Action Underway LCAR; Reviewed reports. Former Staff
1/26/1995 Update or Other Action CAPR; Approved soil disposal plan. Former Staff
9/18/1995 Update or Other Action CAPR; Reviewed files. Former Staff
11/20/1997 Update or Other Action ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: MUNICIPALITY OF ANCHORAGE FMD Former Staff
9/25/1998 Update or Other Action ADEC request info for sights lacking sampling Former Staff
4/4/2001 Update or Other Action Reminded MOA of need for action and timely reports; per conversation with Jon Clark. Lynne Bush
4/9/2001 Update or Other Action MOA provided ASR post-treatment results for pcs removed at time of tank closure. Will provide other requested information asap. Lynne Bush
7/24/2003 Update or Other Action Site transferred from Bush to Dreyer Amanda Dreyer
12/18/2006 Update or Other Action File number issued 2100.26.322 (FKA L69.65). Aggie Blandford
4/18/2007 Exposure Tracking Model Ranking Initial ETM Ranking of 1000 gal diesel UST performed 3/27/07. Gasoline UST portion of site (event ID #2671) closed in 2001. Daniel Fremgen
6/6/2007 Update or Other Action Site management transferred from Pikul to Petrik. Shannon Oelkers
12/19/2012 Document, Report, or Work plan Review - other The project will consist of advancing one boring, soil sampling, laboratory testing, and preparing a confirmation sampling report. The boring will be completed as a groundwater monitoring well. Katrina Chambon
12/20/2012 Site Characterization Workplan Approved The work plan proposes to advance one borehole, collect field screening and analytical soil samples. This work plan is approved with the following condition: Complete copies of field notes need to be provided with the report. Please provide three (3) working days advance notice when planning to do work, to give us an opportunity to be on site to inspect. Katrina Chambon
12/28/2012 Site Visit Site visit to observe soil sampling and groundwater well installation. Katrina Chambon
2/27/2013 Offsite Soil or Groundwater Disposal Approved Katrina Chambon
5/30/2013 Site Characterization Report Approved The Alaska Department of Environmental Conservation (DEC), Contaminated Sites Program (CSP), has completed its review of the subject report "Soil and Groundwater Confirmation Sampling Fire Station No. 6" for the above referenced site. The soil and groundwater confirmation report was was received at our Anchorage office by e-mail on April 22, 2013. The report presents the sampling results from the groundwater sampling that occurred on December 28, 2013 and January 2, 2013. Soil Sampling On December 28, 2012 one boring that was completed as a groundwater monitoring well was positioned between the former diesel UST and gasoline/diesel dispenser. Groundwater was encountered at 17 feet below ground surface. Three analytical soil samples plus one duplicate sample were collected and analyzed for diesel range organics (DRO); residual range organics (RRO); benzene, toluene, ethylbenzene and xylenes (BTEX); and polycyclic aromatic hydrocarbons (PAHs). DRO was detected in sample B1S7 at a concentration of 23.0 mg/kg, which is below its most stringent 18 AAC 75.341 Method 2 cleanup level of 250 mg/kg. There were no other target analyte detections in the soil samples. Groundwater Sampling On January 2, 2013, one groundwater samples and one duplicate were collected from the previously developed monitoring well B1MW. Groundwater samples were analyzed for DRO, GRO, BTEX, and PAHs. Groundwater samples did not exceed their 18 AAC 75.345 Table C cleanup levels. Groundwater flow was not determined. However, data from other nearby contaminated sites, e.g., Debarr Wal-Mart indicate that the groundwater flow direction in the unconfined aquifer is to the southwest. . CSP Response CSP suggests that you may want to discuss with your consultant potential closure for this site. CSP requests that a conceptual site model be submitted in order for that site to be considered for closure Katrina Chambon
6/11/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77779 Diesel UST. Katrina Chambon
7/22/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77779 Diesel UST. Katrina Chambon
8/23/2013 Document, Report, or Work plan Review - other Work plan approval for the decommissioning of the on site groundwater monitoring well. Katrina Chambon
8/23/2013 Document, Report, or Work plan Review - other Work plan approval for the decommissioning of the on site groundwater monitoring well. Katrina Chambon
10/29/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77779 Diesel UST. Katrina Chambon
11/1/2013 Cleanup Complete Determination Issued The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with Municipality of Anchorage (MOA) Fire Station #6 located at 1307 Patterson Street in Anchorage. 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 will be required. Katrina Chambon
11/1/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77779 Diesel UST. Katrina Chambon

Contaminant Information

Name Level Description Media Comments
DRO < Method 2 Most Stringent Soil
DRO < Table C Groundwater

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby