Division of Spill Prevention and Response


photo credit: Nuka Research & Planning Group, LLC

This website was used to assist the Prince William Sound Places of Refuge Workgroup in the development of a document describing Potential Places of Refuge in the Prince William Sound (PWS) subarea. A map of the areas of concern within the PWS subarea is shown below.

The PWS Subarea is depicted in the map shown below. Similar projects have taken place for the Aleutian, 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 map below depicts some of the risk factors used in selecting potential places of refuge. The site assessment matrix (81.7 KB pdf) and site assessment key (56.2 KB pdf) summarize the resources at risk for each site.

Map of risk factors in Prince William Sound

Download a printable copy of this map in pdf format (603 KB pdf). The workgroup has identified a total of 67 PPOR sites. The index map below depicts the 16 different PPOR Maps to be developed to include these sites.

Download a printable copy of this map (191 Kb pdf).

Index of PPOR Maps

A total of 16 maps were created to include the Potential Places of Refuge sites selected in the Prince William Sound Subarea. Each of these 16 pages consists of a map that shows the locations of these sites, along with three tables for each map that give specific information for each individual site. This information includes site considerations, stakeholders, and physical and operational characteristics.

Download (1.56 MB pdf) a copy of the Places of Refuge portion (Part H) of the Subarea Contingency Plan.

Download (1.77 MB pdf) a copy of the risk maps used in identifying the PWS Potential Places of Refuge sites.

The following is a list of the PWS Potential Places of Refuge maps identified on the index map with links to the corresponding file in pdf format:

PWS PPOR Map 01 (1.8 MB pdf)
PWS PPOR Map 02 (3.8 MB pdf)
PWS PPOR Map 03 (2.7 MB pdf)
PWS PPOR Map 04 (3.8 MB pdf)*
PWS PPOR Map 05 (3.5 MB pdf)
PWS PPOR Map 06 (4 MB pdf)
PWS PPOR Map 07 (3.8 MB pdf)
PWS PPOR Map 08 (3.6 MB pdf)
PWS PPOR Map 09 (3.7 MB pdf)
PWS PPOR Map 10 (3.7 MB pdf)
PWS PPOR Map 11 (4.5 MB pdf)
PWS PPOR Map 12 (5.6 MB pdf)
PWS PPOR Map 13 (4.6 MB pdf)
PWS PPOR Map 14 (5.2 MB pdf)
PWS PPOR Map 15 (5.3 MB pdf)
PWS PPOR Map 16 (4.3 MB pdf)

*NOTE:  The grounding site depicted on PPOR Map 04 should not be used based on updated hydrological data information (PDF 456K).

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

Primary Project Participants

  • Alaska Department of Environmental Conservation,
  • Alaska Department of Natural Resources,
  • Alaska Department of Fish and Game,
  • Alyeska Pipeline Service Company/Ship Escort and Response Vessel Service,
  • Cook Inlet Regional Citizens Advisory Council,
  • Environmental Protection Agency (EPA),
  • National Oceans and Atmospheric Administration (NOAA),
  • Prince William Sound Regional Citizens' Advisory Council,
  • Prince William Sound Response Planning Group,
  • Southwest Alaska Pilots Association,
  • U.S. Coast Guard, District 17,
  • U.S. Coast Guard, Valdez Marine Safety Office, and
  • U.S. Department of the Interior

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 Cook Inlet 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: June 27, 2008 by Nuka Research & Planning Group, LLC