Division of Spill Prevention and Response


West A Zone

This website is being used by a workgroup to develop Geographic Response Strategies (GRS) to protect sensitive coastal environments in the West A Zone of the Aleutian Islands from the impacts of spilled oil. The West A Zone is part of the Aleutian Islands Subarea and extends from the Islands of Four Mountains to Amchitka Pass.

GRS are oil spill response plans tailored to protect a specific sensitive area from oil impacts following a spill. These response plans are map-based strategies that can save time during the critical first few hours of an oil spill response. They show responders where sensitive areas are located and where to place oil spill protection resources.  

During a February 20, 2013 meeting of the Aleutian Subarea Committee, 12 sites were nominated from the list of 82 candidate sites for GRS development. The map below shows the GRS selected and candidate sites in the West A Zone, and the site selection matrix (40.5 KB pdf) and site selection key (29.2 KB pdf) summarize the resources at risk for each site.

West A map


Color key:
Red: Candidate sites for GRS.
Yellow: Site selected for GRS development; draft GRS may be available for review by Workgroup members.

Download a printable pdf format file (99 KB) of this map and sitelist. The current file date is: September 23, 2013.

To save a copy of this colored map directly to your hard drive:
Windows: right click on the map and select "save image as..." from the menu that appears;
Mac: click and hold on the map, and select the "download image to disk" option from the menu that appears.


List of Sites Selected for Geographic Response Strategies

AWA-03 – Kagamil Island
AWA-16 – Amelia Island - Northwest
AWA-17 – Amelia Island - Southwest
AWA-20 – Nazan Bay - Atka
AWA-21 – North Cape to Cape Korovin
AWA-22 – Korovin Bay Lagoon
AWA-48 – Kagalaska Island - North
AWA-49 – North Kagalaska Strait
AWA-57 – Bay of Islands - Adak Island
AWA-58 – Shagak Bay
AWA-60 – Calm Lagoon/Sweeper Cove
AWA-61 – Finger Bay/Scabbard Bay

List of Candidate Sites for Geographic Response Strategies

AWA01 – Concord Pt.-Chuginadak Island
AWA02 – Chuginadak Island-North
AWA04 – Ulinga Island
AWA05 – Carlisle Island
AWA06 – Herbert Island
AWA07 – Yunaska Island-North
AWA08 – Chagulak Island
AWA09 – Amukta Island
AWA10 – North Seguam Island
AWA11 – South Seguam Island
AWA12 – Agligaduk/Tanadak Islands
AWA13 – Amelia Island-Northeast
AWA14 – Cape Idalug-East
AWA15 – Chalugas Bay-Amelia Island
AWA18 – Amelia Island-Southcentral
AWA19 – Sviechnikof Hbr to Tanadak Is.-Amelia Is.
AWA23 – Egg Bay
AWA24 – Salt Island/Banner Bay
AWA25 – Deep Bay to Wall Bay-Atka Is.
AWA26 – Kovurof/Podsopochni Bay
AWA27 – Bechevin Bay
AWA28 – Crescent Bay to Cape Kigun
AWA29 – Sergief Bay
AWA30 – Beaver Bay-Atka Is.
AWA31 – Explorer Bay/Sagchudak Island
AWA32 – Kobakof Bay/
Amtagis&Sadatanak Is.
AWA33 – Vasilief Bay
AWA34 – Koniuji Island
AWA35 – Kasatochi Island
AWA36 – Ikiginak/Oglodak Isalnd
AWA37 – Tagalak Island-EastAWA38 – Chuguli Island-South
AWA39 – Igitkin Island-West
AWA40 – Tagadak/Kanu/Asuksak/
Tanaklak/Aziak Is.

AWA41 – Umak Bight
AWA42 – Anagaksik Island
AWA43 – Great Sitkin Island-East
AWA44 – Great Sitkin Island-West
AWA45 – Little Tanaga Island-North
AWA46 – Little Tanaga Island-South
AWA47 – Cabin Cove/Cemetary Pt.-Kagalaska Is.
AWA50 – South Kagalaska Island
AWA51 – Boot Bay-Adak Island
AWA52 – Camel Cove/Hidden Bay/Crone Is.
AWA53 – Bay of Waterfalls-Adak
AWA54 – Cape Yakak to Hook Pt. Adak Is.
AWA55 – Three Arm Bay
AWA56 – Argonne Pt to Careful Pt
AWA59 – Andrew Bay to Cape Moffet
AWA62 – North Cape-Kanaga Island
AWA63 – Kanaga Island-East
AWA64 – Kanaga Island-Southeast
AWA65 – Point Deceit & bay
AWA66 – Chunu Bay& Cape Chunu
AWA67 – Northwest Kanaga Island
AWA68 – Lakeside Point
AWA69 – Bobrof Island
AWA70 – Gusty Bay-Tanaga Island
AWA71 – Northwest Tanaga Island
AWA72 – Tanga Bay
AWA73 – Lash/South Bays
AWA74 – Twins Bay
AWA75 – East Tanaga Island
AWA76 – Ilak Island/Gramp Rock
AWA77 – Skagul/Ogliuga/Tag/Ugidak Islands
AWA78 – Kavalga Island
AWA79 – Gareloi Island-
AWA80 – Ulak Island
AWA81 – Unalga Island
AWA82 – Amatignak Island-SE

The Aleutian GRS Site Selection Process

The first step in the GRS site selection process is to identify candidate sites. Candidate sites are identified based on a set of three major site selection criteria.

  • environmental sensitivity,
  • risk of being impacted from a water borne spill; and
  • feasibility of successfully protecting the site with existing technology.

Public comments are also considered during site selection and the sites selected by the workgroup will consider this input. Once GRS site selection is finalized, the workgroup will develop strategies for each site.

The potential GRS locations identified in the site selection matrix were selected based on the following criteria of environmental sensitivity, which are set forth in the Aleutian Subarea Plan:

  1. Threatened and Endangered Species/Habitats
  2. Marshes
  3. Eel grass beds
  4. Sheltered Tidal Flats
  5. Sheltered Rocky Shores
  6. Sea Otter Concentration Areas
  7. Harbor Seal Haulouts
  8. Sea Lion Rookeries and Haulouts
  9. Large Seabird Colonies
  10. Waterfowl and Shorebird Spring,Fall or Winter Concentration Areas
  11. Eagle Nest Sites
  12. Large Anadromous Fish Streams
  13. Intertidal Salmon Spawning Areas
  14. Hatcheries & Aquaculture sites
  15. Herring Spawning Areas
  16. Federal Wilderness Areas, Wild and Scenic Rivers, and National Natural Landmarks
  17. State Refuges, Sanctuaries, and Critical Habitat Areas
  18. Cultural Resources/Archaeological Sites
  19. Intertidal Sites
  20. Subsistence Harvest Areas
  21. High Use Commercial Fishing Areas
  22. High Use Recreational Areas

Public involvement is essential to ensure that the sites selected and the strategies developed will reflect the environmental protection priorities of local communities, stakeholders, and resource users. The workgroup will be seeking public input to ensure that everyone with a stake in Aleutians is made aware of Geographic Response Strategies and their importance during an oil spill response. If you have local knowledge about the Aleutians Subarea or if you would like more information about Geographic Response Strategies please contact: dec.spar.grs@alaska.gov

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

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

For more information about Geographic Response Strategies or questions pertaining to this project, please contact: dec.spar.grs@alaska.gov


This page was updated: December 5, 2013 by Nuka Research & Planning Group, LLC