Division of Spill Prevention and Response

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Adak Petroleum Diesel Spill



Incident Description

Incident Location Map

Spill Location - aerial map (PDF 376K)

Location Adak Petroleum bulk fuel facility, Adak Island, Aleutian Islands. Adak is approximately 1,200 miles southwest of Anchorage. Adak is in the Hawaii-Aleutian time zone, one hour earlier than Anchorage.
Product/Quantity The product spilled was #2 diesel fuel. Adak Petroleum initially estimated that up to 3,400 barrels (142,800 gallons) of fuel were released from a 114,000-barrel (4.8 million gallons) capacity storage tank as it was being filled from the tank ship Al Amerat. Based on January 11 visual observations, Adak Petroleum estimated that 1,000 gallons of fuel entered the small boat harbor. Efforts are ongoing to determine an accurate spill volume.
Cause The spill occurred as fuel was being pumped to underground storage tank N-7 in the Helmet Creek Tank Farm from the Al Amerat, moored at the fuel pier in Sweeper Cove. Fuel escaped from tank N-7 into secondary containment surrounding the tank, from which valves were open to a drainage system leading to Helmet Creek. The fuel overwhelmed the system’s oil/water separator, resulting in a fuel release to Helmet Creek and the small boat harbor at its terminus. The spill appears to have been caused by tank N-7 being overfilled, but the exact route of the fuel from the tank to the drainage system is still under investigation.
Time/Date of Incident Adak Petroleum staff discovered fuel in the Adak small boat harbor at approximately 3:50 PM on January 11, 2010. Adak Petroleum reported the spill to ADEC at 6:27 PM on January 11, 2010.
Situation Reports
01/12/2010 (PDF 416K)
01/13/2010 (PDF 751K)
01/14/2010 (PDF 165K)
01/15/2010 (PDF 165K)
01/18/2010 (PDF 108K)
01/20/2010 (PDF 210K)
02/12/2010 (PDF 145K)
08/31/2011 (PDF 36K) -- FINAL
Press Releases
01/13/2010 Responders continue diesel cleanup on Adak
01/12/2010 Coast Guard conducts overflight of Adak diesel spill for unified command
01/12/2010 Unified command established for response to fuel spill on Adak, recovery operations underway
01/11/2010 Coast Guard responds to fuel spill near Adak (corrected)
Photos

ADEC Photos (1/15/2010)

Responders handling oiled sorbent material duirng cleanup at Helmet Creek. Boom in place at "Roberts Choke Point" in Helmet Creek. Outfall to Helmet Creek from oily-water separator catch-basin.  
Responders handling oiled sorbent material duirng cleanup at Helmet Creek. Boom in place at "Roberts Choke Point" in Helmet Creek. Outfall to Helmet Creek from oily-water separator catch-basin.  

 

More Photos >>

 

     
Maps
  Spill Location - aerial map (PDF 376K)
  Land Management Map
  Environmental Sensitivity Index Map
Response Plans, Fact Sheets and Other Reference Documents
Response Plans
Aleutians Subarea Contingency Plan
Unified Plan
Fact Sheets and Other Reference Documents
Diesel Fact Sheet (NOAA): Fate and transport of spilled diesel applicable to both small and large spills (PDF 532K)

Diesel fuel (all types) Material Safety Data Sheet (PDF)

SCAT Fact Sheet (PDF 119K)
NRDA Fact Sheet (PDF 105K)
Current Weather
 

Local Marine Forecast for Adak

  Public Forecast for Adak
Links
  US Coast Guard District 17 (Public Affairs)
  Aleut Enterprise
For more information

Gary Folley, ADEC, (907) 262-5210 ext. 234