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Site Report: Senco Alaska

Site Name: Senco Alaska
Address: 877 E. Dowling Road, Anchorage, AK 99516
File Number: 2100.26.192
Hazard ID: 24362
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 61.166598
Longitude: -149.866777
Horizontal Datum:NAD83

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

Tanks removed in 1998, soil and groundwater contamination found. Most of the contaminated soil was excavated and treated. Some soil contamination was left near the utilities in the alley located on the south side of the property. Three monitoring wells were installed in 1999. The monitoring wells were decommissioned in 2003. F.K.A. L55.325

Action Information

Action Date Action Description DEC Staff
10/28/1998 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77642 (Added by System) Robert Weimer
10/28/1998 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Former Staff
10/28/1998 Site Added to Database Former Staff
12/4/1998 Underground Storage Tank Site Characterization or Assessment Site assessment report identified soil contamination remaining. Robert Weimer
5/28/1999 Document, Report, or Work plan Review - other May 28, 1999 groundwater monitoring event. Up to 250 ug/l benzene and 7.3 mg/l GRO in the groundwater. Robert Weimer
7/1/1999 Release Investigation Release investigation report identified groundwater contamination. Robert Weimer
9/22/1999 Leaking Underground Storage Tank Corrective Action Underway DEC letter approving corrective action plan for the groundwater. Robert Weimer
6/20/2000 Document, Report, or Work plan Review - other June 20, 2000 groundwater monitoring event. Up to 5.08 ug/l benzene in the groundwater. Depth to groundwater is 3 to 25 feet below ground surface. Groundwater appears to flow to the southwest. Robert Weimer
10/24/2000 Update or Other Action DEC letter approving reducing frequency of groundwater monitoring Robert Weimer
10/5/2001 Document, Report, or Work plan Review - other October 5, 2001 groundwater monitoring. All groundwater samples meet cleanup levels for GRO and BTEX. Depth to groundwater is 5 to 27 feet below ground surface and appears to flow in the southwest direction. Robert Weimer
12/2/2005 Update or Other Action The three site monitoring wells were decommissioned. Some soil contamination remains on the south side of the property in the utilities. Robert Weimer
2/15/2007 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
11/23/2011 Update or Other Action Evaluate site for corrective action complete or corrective action complete with IC's status. Robert Weimer
4/1/2014 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77642 Tank #1 Gasoline. Joshua Barsis
6/19/2014 Cleanup Complete Determination Issued Cleanup complete with ICs issued on this day. Joshua Barsis
6/19/2014 Institutional Control Record Established Institutional Controls established and entered into the database. Joshua Barsis
10/6/2014 Institutional Control Update Current project manager chooses to retain management of the site at this time. Kristin Thompson
9/30/2016 Institutional Control Compliance Review IC compliance review conducted. Staff changed from Joshua Barsis to IC Unit. IC/Closure Details updated. IC reminder letter issued requesting the signed ICs Agreement and Signature Page. Reminder system set to follow-up on the ICs Agreement in one month, and on land use conditions every five years. Kristin Thompson
10/20/2016 Institutional Control Update Received the signed ICs Agreement Page today. Kristin Thompson
6/21/2019 Institutional Control Update An Institutional Controls reminder letter e-mailed to the landowner/responsible party on this date. Mossy Mead
9/25/2019 Institutional Control Compliance Review An Institutional Controls reminder letter mailed to the new owner (as of Aug 2019) of the property on this date. Mossy Mead
9/25/2024 Institutional Control Compliance Review IC compliance review completed on this date. An IC reminder letter was issued to the landowner. The next review will be in five years’ time. Gaige Robinson

Contaminant Information

Name Level Description Media Comments
GRO > Human Health/Ingestion/Inhalation SoilSoil

Control Type

Type Details
Signed CS Determination

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
Excavation / Soil Movement Restrictions
Groundwater Use Restrictions Installation of groundwater wells requires ADEC approval.
When Contaminated Soil is Accessible, Remediation Should Occur Sub-surface soil contamination remains beneath the Senco Alaska building and below the buried sewer line. When the soil becomes accessible, the soil must be evaluated and contamination addressed to the satisfaction of ADEC.
Periodic Review Senco Alaska Inc must report to ADEC every 5 years to document land use, or report as soon as Senco Alaska Inc becomes aware of any change in land ownership and/or use, if earlier.
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)

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