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Site Report: City of Ketchikan Charcoal Point Wastewater Plant UST 1

Site Name: City of Ketchikan Charcoal Point Wastewater Plant UST 1
Address: 3921 Tongass Avenue, Ketchikan, AK 99901
File Number: 1516.26.039
Hazard ID: 26543
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 55.356956
Longitude: -131.696995
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

During removal of a 4,000-gallon diesel underground storage tank (UST #1) on January 26, 2016, field screening samples taken with a photoionization detector (PID) detected elevated levels of volatile hydrocarbons. One analytical sample confirmed diesel range organics above DEC cleanup levels. No other analytes were confirmed above cleanup levels. Contamination was traced vertically and horizontally and approximately six cubic yards of contaminated soil were shipped to Roosevelt Regional MSW Landfill for disposal. Laboratory analysis of all post-excavation samples indicated no contamination remained above cleanup levels.

Action Information

Action Date Action Description DEC Staff
4/11/2016 Site Added to Database A new site has been added to the database Mitzi Read
4/11/2016 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST site created in CSP database for source area 4,000-Gallon Diesel UST #1, 79903 Mitzi Read
4/12/2016 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Cleanup initiated at LUST site source area 79903 Nathan Maxwell
4/14/2016 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79903 name: 4,000-Gallon Diesel UST #1 Nathan Maxwell
4/21/2016 Cleanup Complete Determination Issued The Alaska Department of Environmental Conservation (ADEC), Contaminated Sites Program has reviewed the environmental records for the City of Ketchikan Charcoal Point Wastewater Treatment Plant UST 1 located at 3921 Tongass Avenue in Ketchikan, Alaska. The decision letter memorializes the site history, cleanup actions, and standard conditions for long-term site management. No further remedial action is required. Nathan Maxwell

Contaminant Information

Name Level Description Media Comments
DRO < Method 2 Most Stringent Soil Remaining DRO concentrations in soil are below MTG cleanup level.

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)

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