05B4 Navy Radiological Survey Update
Former Naval Station Treasure Island

Navy Radiological Survey Update

The radiological surveys of the leased housing on Naval Station Treasure Island are now complete.    

As previously shared, the survey identified three findings of radiation above naturally occurring background.  All three findings are well below a level considered to be a health concern.  The results of all housing surveys will be included in a Survey Completion Report that will be made available to the public.  The draft report is scheduled for release in the latter part of 2014.

The Navy greatly appreciates the cooperation and support of all residents, housing service providers, Treasure Island Development Authority, the San Francisco Department of Public Health, the California Department of Public Health, and the California Department of Toxic Substances Control who helped us successfully complete this very important project ahead of schedule.

The Navy remains committed to the successful clean-up, transfer and reuse of the former Naval Station Treasure Island.

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August 13, 2014

The radiological surveys of the leased housing on Naval Station Treasure Island are now more than 90% complete. The survey results are reviewed and validated by Navy radiological experts in coordination with the California Department of Public Health. Upon validation, the results are provided to the Treasure Island Development Authority for distribution to the residents.

As of August 13, 2014, results of 671 surveyed residences have been provided to the Treasure Island Development Authority. Almost all radiation levels detected at the residences have been normal and were indicative of naturally occurring background radiation. Radiation that is slightly above naturally occurring background was detected in three locations.

All three findings of radiation above background are below a level considered to be a health concern and are located in a vacant housing unit, in an occupied housing unit and an exterior storage shed of an occupied housing unit. The detected levels equate to expected annual doses of no more than 5.5 mrem per year, 2.9 mrem per year and 1.7 mrem per year, respectively.

For more understanding of radiation please view the poster at the following link:

Naval Station Treasure Island Understanding Radiation

The results of all surveys will be included in a Survey Completion Report. This report will be made available to the public and the draft is scheduled for release in the latter part of 2014.

The project is ahead of schedule and is to be completed by the end of next week.

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July 23, 2014

The radiological surveys of the leased housing on Naval Station Treasure Island are now more than 50% complete. As previously described, the survey results are reviewed and validated by Navy radiological experts in coordination with the California Department of Public Health. Upon validation, the results are provided to the Treasure Island Development Authority within two weeks following the date of the surveys for distribution to the residents.

As of July 23, 2014, results of 325 surveyed residences have been provided to the Treasure Island Development Authority. All but one reading of the radiation levels at the residences have been normal and were indicative of naturally occurring background radiation.

The single finding of radiation above background was below a level considered to be a health concern, and was located in a vacant housing unit (1303-F). The detected level equates to an expected annual dose of no more than 5.5 mrem per year and is not a health concern. For more understanding of radiation please view the poster at the following link:

Naval Station Treasure Island Understanding Radiation

The results of all surveys will be included in a Survey Completion Report. This report will be made available to the public and the draft is scheduled for release in the latter part of 2014.

The project is planned to be completed in September 2014, but is currently running ahead of schedule.

 

Naval Station Treasure Island Understanding Radiation

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