AIKEN, South Carolina, June 18 -- The U.S. Department of Energy Savannah River Site issued the following news release: * * * Upgrades and Maintenance Ensure Safe, Efficient Used Nuclear Fuel Storage at SRS Crews with Savannah River Nuclear Solutions (SRNS), the Savannah River Site's (SRS) managing and operating contractor, have brought innovations and other improvements to a basin that stores used nuclear fuel at SRS. They recently replaced an exhausted resin to maintain the quality and safe  more