Facility Site ID: 2214 Cleanup Site ID: 1359

What's New? - November 2016

Final reconstruction of the south wall of Arena Sports after south shed (annex) removed.
Final reconstruction of the south wall of Arena Sports after south shed (annex) removed.

Final After Action Report completed

The US Navy finished their report about the cleanup activities completed in May 2015 in Building 2 and the removal of the south shed of Building 27 (Arena Sports).  The Washington Departments of Health and Ecology have reviewed this final After Action Report (AAR).



Low-Level Radiation Cleaned Up

Contractors for the U.S. Navy completed the cleanup of low-level radiation in contaminated building materials at Warren G. Magnuson Park (former US Naval Air Station at Sand Point.  The Navy repainted aircraft cockpit dials with glow-in-the-dark radium paint in the 1940's and 1950’s.  The Navy owned and operated an air station at what is now Magnuson Park, and was responsible for cleanup of all contamination left from its operations.
 
The contaminated building materials and soils were removed from the former aircraft hangers, Buildings 2 and 27 (Arena Sports.)   In January 2015, the Department of Health, Office of Radiation released Building 2 and the south walls, stair towers, and other associated areas of Building 27 for unrestricted use.

The former aircraft work areas were located in parts of Buildings 2 and 27, both former aircraft hangars. Building 2 now houses park maintenance shops and equipment.   Building 27 houses Arena Sports, an indoor athletics facility. Repeated Navy and Health Department tests have confirmed that no radiation above background level present in the Arena Sports complex. The former work areas in Building 27 were in an annex, referred to as the South Shed, separate from the sports facility. The annex was dismantled and the outer wall restored in March-April, 2015. Contaminated materials were shipped to licensed facilities for disposal.
 
Cleanup work had been under way since June 2013. The Navy conducted the work under federal cleanup laws. Washington’s departments of Ecology and Health provided additional oversight. Health is the state’s radiation safety regulator. See FLIKR for more pictures of South Shed deconstruction.

Contaminants Of Concern

Radium-226, Cesium-137 and Strontium-90

Seattle Parks And Recreation Independent Radiation Survey

Seattle Parks and Recreation Independent Radiation Survey
In 2015, Seattle Parks and Recreation (Parks) contracted with Thomas Gray & Associates, Inc., a health physics consulting firm to do an independent radiation survey and sampling project in five areas of the park.  The results released March 7, 2016 and can be found at Seattle Parks and Recreation.  The areas include: the “Solid Ground” housing area, the off-leash dog park, the children’s play area, the amphitheater, “The Pea Patch” community vegetable gardens and the children’s garden.  According to Parks the survey revealed no harmful levels at surveyed sites within Warren G. Magnuson Park.

Where Were The Contaminants Found?

Map of Sand Point Buildings
Map of Sand Point Buildings
The contamination has been found in building materials, and in piping, catch basins and soil near Buildings 2 and 27. 

Who Is Responsible For The Cleanup?

Project Roles and Responsibilities
 
U.S. Navy

The U.S. Navy is responsible for the cleanup of the low-level radiological contamination at Sand Point.  In accordance with the Department of Navy’s Environmental Restoration Program, the U.S. Navy is required to follow the federal requirements of the:

  • Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) or “Superfund”.
  • Time critical removal action (TCRA), under CERCLA.
  • National Oil and Hazardous Pollution Contingency Plan (NCP).

 State of Washington
 
The Washington State Model Toxics Control Act (MTCA) and WAC 246 Radiation Protection are relevant state requirements. The state’s role is to provide technical review by conducting: 

  • Technical review of investigation results and cleanup plans.
  • On-site air monitoring
  • On-site visual observations of cleanup actions.
  • On-site and park-wide pre-cleanup radiation surveys.
  • Conduct confirmation sampling and radiation surveys to verify cleanup completion.
  • Community outreach, including public meetings.

The state departments of Ecology and Health, and the City of Seattle have worked closely with the U.S. Navy and their contractors to ensure a thorough cleanup of the low-level radiological contamination at Magnuson Park.

Site Background

The former Naval Station Puget Sound at Sand Point (NS Puget Sound) was originally known as Naval Air Station (NAS) Sand Point and then later NAS Seattle. Acquired by the Navy in 1920, from King County, was developed slowly by the Navy as a reserve training command for Navy and Marine Corps aviators.
 
In 1998 and 2000, the Navy transferred portions of former NS Puget Sound to the Department of Interior for ultimate use by the City of Seattle for recreational purposes. The transfer of property included Buildings 2 and 27. The 1944 base map identified Building 2 as an Aircraft Assembly and Repair Shop and Building 27 as a Seaplane Hangar. Currently the City of Seattle Parks and Recreation Department manages use of the buildings. Building 2 was used as a recreation facility until recently. It is now used by Parks and Recreation Department personnel to store recreational equipment and materials. The City has leased Building 27 to Arena Sports who has remodeled the main hangar bays of the building into a multi-sport recreation center providing both profit and non-profit recreational services for the local community. During the process of retrofitting the space for Arena Sports, the City recovered as-built drawings indicating the presence of a “Radium Room” in the south shed of Building 27 that is not used by Arena Sports and an “Instrument Shop” on the second floor of Building 2. The City of Seattle conducted screening in 2009 and notified the Navy of the confirmed presence of radiological materials. Upon being notified, the Navy quickly took action to characterize the type and extent of residual radiological materials in both buildings.
 
The radiological characterization surveys identified areas of  radiological contamination in previously mentioned areas in buildings 2 and 27, and associated catch basins, drain lines and outdoor areas immediately outside of the buildings. The primary type of radiological contamination identified is radium-226 (Ra-226) with some small amounts of cesium-137 (Cs-137) and strontium-90 (Sr-90) also identified. Radium-226 was commonly used by military and commercial entities from the early 1930s through the 1970s in radioluminescent (glow-in-the dark) items. These items were used in dials, gauges and markers on ships, aircraft, tanks, and motor vehicles. To keep these items glowing, the Navy established “radium paint shops” or “instrument repair shops” where personnel removed the original radioluminescent paint, then repainted the radioluminescent item. The use of radioluminescent paint was not regulated by a government agency at the time of the former NS Puget Sound; however, there were Navy regulations on health and safety requirements. Today, use of radium is controlled by the Nuclear Regulatory Commission and state radiation health departments.   

Previous Cleanup Work

In 2010 the Navy removed some radiological contaminated piping and cleaned up a catch basin.

Community Profile

The Environmental Protection Agency (EPA) has developed a new environmental justice (EJ) mapping and screening tool called EJSCREEN. It is based on nationally consistent data and an approach that combines environmental and demographic indicators in maps and reports. See below for information about demographics in the area of the US Navy Station Sand Point, Magnusson Park.

EJSCREEN Census Block Map - This shows the Census Blocks used to generate the reports below.

EJSCREEN ACS Summary Report US Navy Sand Point – This shows the demographic information about the population of the area.

EJScreen Report US Navy Sand Point – This report shows the values for environmental and demographic indicators and EJSCREEN indexes. These percentiles provide perspective on how the selected block group or buffer area compares to the entire state, EPA region, or nation.

Check out What’s in My Neighborhood to find out about other cleanups in your area. 
Public Information 13
Technical Reports 24
Document Title Document Date Document Type
Final Site Inspection and Analysis Sampling Plan 6/17/2017 Site Specific Technical Document - other
Site Inspection Sample and Analysis Plan 3/31/2017 Site Specific Technical Document - other
After Action Report Radiological Materials Time-Critical Removal Actions 11/1/2016 Site Specific Technical Document - other
FINAL AFTER ACTION REPORT AT FORMER NAVAL STATION PUGET SOUND Cover Letter 10/28/2016 Final Cleanup Action Report
Department of Health Review of Final Data Report 9/29/2016 Progress Report
Sand Point Preliminary Assessment 9/1/2016 Site Specific Technical Document - other
Department of Health Release Letter 1/28/2015 Progress Report
US Naval Station Puget Sound at Sand Point - Radilogical Testing Poster Board 7/18/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point July 18, 2013 Presentation 7/18/2013 Site Specific Technical Document - other
Final Radiological Removal Action Workplan 7/12/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point - Radiological Testing Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point - Where Contamination was Found Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Navy Station Puget Sound at Sand Point - Understanding Radiation Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sound Point- Transfer History Poster Boards 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Sation Puget Sound at Sand Point - Time Critical Removal Actions Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point - Radiological Testing Poster Board 5/29/2013 Site Specific Technical Document - other
US Naval Station Puget Sound at Sound Point - Protective Measures Poster Boards 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sound Point - Naval Station History Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point - Cleanup Plan Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound at Sand Point - CERCLA Cleanup Process Poster Board 5/29/2013 Site Specific Administrative Document - other (Administrative correspondence)
US Naval Station Puget Sound Puget Sound - Action Taken to Date Poster Board 5/29/2013 Site Specific Technical Document - other
US Navy Station Sand Point - Action Memorandum (May 2013) 5/24/2013 Site Specific Technical Document - other
US Navy Station Sand Point - Radiological Remedial Investigation Report (May 2011) 5/1/2013 Remedial Investigation Report
Time Critical Removal Action Work Plan 1/8/2010 Site Specific Administrative Document - other (Administrative correspondence)
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Northwest Regional Office
    15700 Dayton Ave N
    Shoreline, 98133
    Please schedule an appointment to view print documents at this location.
  • Seattle Public Library - Northeast Branch
    6801 35th Ave NE
    Seattle, 98115
    This location may only have print documents available during open comment periods.

Contaminants 7

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Other Contaminant - Base/Neutral/Acid Organics C S S S
Metals - Metals Priority Pollutants C S S S
Halogenated Organics - Polychlorinated biPhenyls (PCB) C S S S
Non-Halogenated Organics - Petroleum Products-Unspecified C S S S
Non-Halogenated Organics - Non-Halogenated Solvents C S S S
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C
Pesticides - Pesticides-Unspecified S S S S
S
Suspected
C
Confirmed Above Cleanup Levels
B
Below Cleanup Levels
RA
Remediated-Above
RB
Remediated-Below
R
Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.