UNITED STATES 410892 fy GUA ATOMIC ENERGY COMMISSION vig NEW YORK OPERATIONS OFFICE 70 COLUMBUS AVENUE NEW YORK 23, NEW YORK ¢ L&S TELEPHONE NO. : PLaza 7-3600 Health and Safety Laboratory HSA: JHH: krw December 17, 1956 Dr. Lauren R. Donaldson, Director Applied Fisheries Laboratory University of Washington Fisheries Center Seattle 5, Washington Dear Lauren: Thanks very much for your information on the survey samples. We have now revised our data in terms of the weights that you gave us. This summary is as correct as possible. The particular question you asked concerning HASL #3815 is resolved by Isotopes, Inc., reducing their value to 8043. I believe this completes our data with the exception of a request from DEM for a repeated analysis of all crab samples. Crabs are apparently the limiting diet factor and they are asking for a check on all of our analyses. We will let you know if any changes are made. Best regards to you and your staff. Sincerely, (3 ‘ Ve ~ John H. Harley, Chief Analytical Pranch

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