Letter

Signed: Tuesday, April 5th, 2011

Board Issues a Reporting Requirement for a Report within 60 Days Describing Approach for Spray Leak Analysis and an Outline of R&D Activities DOE will Perform to Reduce Uncertainties in this Analysis Approach at Waste Treatment and Immobilization Plant

From

Dr. Peter S. Winokur

Chairman
Defense Nuclear Facilities Safety Board
625 Indiana Ave., NW
Washington, DC 20004

To

The Honorable I. R. Triay

Assistant Secretary for Environmental Management
Department of Energy
1000 Independence Ave., SW
Washington, DC 20585

This Letter Pertains To:

Defense Nuclear Facility	Hanford