Division of Spill Prevention and Response


Welcome to the Aleutian Subarea - Places of Refuge Home Page

Cougar Ace photo

This website was used to assist the Aleutian Subarea Potential Places of Refuge Workgroup in the development of a document describing Potential Places of Refuge (PPOR) in the Aleutian Subarea. The initial project was completed in September of 2007 and was included in the Subarea Contingency Plan by the Aleutian Subarea Committee in 2009. In 2014, the Subarea Contingency Plan was updated and strengthened as a result of recommendations included in the findings from the Aleutian Islands Risk Assessment. At that time, additional information and changes to the PPOR were included in the documents to reflect new information in the subarea.

The Aleutian Subarea is depicted in the map shown below. Similar projects have taken place for the Prince William Sound, Kodiak and Cook Inlet Subareas. The workgroup record and products from those projects are available at http://www.dec.state.ak.us/spar/PPR/ppor/home.htm.


The objective of this project has been to identify docking, anchoring, mooring and grounding locations that may be selected as Potential Places of Refuge in order to enhance the overall response process.


The first map below depicts some of the risk factors the workgroup used in selecting potential places of refuge. Additional information on risks and vessel traffic in the Subarea has been developed by ADEC and the USCG and is available for viewing at this link. The workgroup identified candidate sites for potential places of refuge. These sites were researched and the resources and attributes of each were placed in a site assessment key. This summary of the resources at risk for each site aided in the selection potential places of refuge. The following links will download a copy of the site assessment matrix and the key.

Download a printable copy of this map, including separate pages for each layer, in pdf format (5.5MB pdf).

AI risk map

The large size of the Aleutian Subarea made it necessary to further divide it into smaller zones. These are illustrated in the Index Map shown above. Download a copy of this map at this link.

Each zone then had an individual Potential Place of Refuge Plan developed. These 10 plans contain a map page that depicts the sites selected and informational page that contains important resource and operational information. These plans have been reviewed and approved by the workgroup and forwarded to the Subarea Contingency Plan Committee for inclusion in the Subarea Contingency Plan.

Index of PPOR Maps

Download each PPOR by clicking on the links below:

Aleutians PPOR Map 01 (885KB pdf)
Aleutians PPOR Map 02 (887KB pdf)
Aleutians PPOR Map 03 (1.8MB pdf)
Aleutians PPOR Map 04 (659KB pdf)
Aleutians PPOR Map 05 (840KB pdf)
Aleutians PPOR Map 06 (791KB pdf)
Aleutians PPOR Map 07 (721KB pdf)
Aleutians PPOR Map 08 (655KB pdf)
Aleutians PPOR Map 09 (1.2MB pdf)
Aleutians PPOR Map 10 (778KB pdf)

PPOR Introduction Section

Once these plans are included as a section to the Places of Refuge portion of the Subarea Contingency Plan, they will have an introductory section that will explain the context and use of the plans. You can download a copy of the introduction section to the Places of Refuge portion of the Subarea Contingency Plan.

An associated project, the Aleutian Subarea Geographic Response Strategy (GRS) Project may be found at the following link: http://www.dec.state.ak.us/spar/PPR/grs/ai/home.htm

Primary Project Participants

Alaska Department of Environmental Conservation,
Alaska Department of Natural Resources,
Alaska Department of Fish and Game,
Alaska Marine Pilots Association,
Alaska Chadux
Aleutians East Borough
Aleut Marine Mammal Commission
City of Akutan
City of Unalaska
National Oceanic and Atmospheric Administration (NOAA)
Tesoro, Alaska
U.S. Coast Guard, District 17,
U.S. Department of the Interior
U.S. Coast Guard COTP Western Alaska
U.S. Coast Guard Unalaska Marine Safety Detachment
U.S. Environmental Protection Agency (EPA)

Alien Species Considerations

Alien or invasive species include seeds, eggs, spores, or other biological material capable of propagating that species that is not native to an ecosystem. Invasive species commonly are transported in ballast waters and cargo associated oil transport and shipping. During operations any species that are encountered that are suspected to be non-native should be collected and presented to wildlife managers. Additional information on invasive species can be found in the “Useful Websites” section below.

Websites of Interest

Invasive species informative websites:

If you have local knowledge about the PWS Subarea or for more information or questions pertaining to this project, contact dec.spar.ppor@alaska.gov

You will need a special program to open some of the files (pdf) that you may download from this site. If you do not already have one, you may download the free Adobe Acrobat Reader to open them. If you have special accessibility needs, Adobe offers several free accessibility programs for reading pdf files as well.

This page was updated: November 25, 2014 by Nuka Research & Planning Group, LLC

You can learn more about Geographic Response Strategies by reading our Frequently Asked Questions.