131 LA UR 03 5862 - National Nuclear Security Administration ...

2.1 Plutonium Complex (TA-55)The Plutonium Complex Key Facility consists of six primary buildings and a number of lesser buildingsand structures. As presented in the SWEIS, this Key Facility contained one operational Category 2 nuclearhazard facility (TA-55-4), two Low Hazard chemical facilities (TA-55-3 and TA-55-5), and one Low Hazardenergy source facility (TA-55-7).The DOE listing of LANL nuclear facilities for both 1998 and 2002 (DOE 1998a, LANL 2002a) retainedBuilding TA-55-4 as a Category 2 nuclear hazard facility as shown in Table 2.1-1.Table 2.1-1. Plutonium Complex Buildings with Nuclear Hazard ClassificationabcdeBUILDING DESCRIPTIONSWEISRODDOE1998 a DOE2000 b LANL2001 c LANL2001 d LANL2002 eTA-55-0004 PU-238 Processing 2 2 2 2 2 2TA-55-0041 Nuclear Material Storage 2DOE/LANL list of Los Alamos National Laboratory Nuclear Facilities (DOE 1998a)DOE/LANL list of Los Alamos National Laboratory Nuclear Facilities (DOE 2000a)DOE/LANL list of Los Alamos National Laboratory Nuclear Facilities (LANL 2001a)DOE/LANL list of Los Alamos National Laboratory Nuclear Facilities (LANL 2001b)DOE/LANL list of Los Alamos National Laboratory Nuclear Facilities (LANL 2002a)The SWEIS also identified one potential Category 2 nuclear hazard facility (TA-55-41, the NuclearMaterial Storage Facility [NMSF]), which was slated for potential modification to bring it into operationalstatus. This was not done, and the DOE removed this facility from its list of nuclear facilities in its April 2000listing (DOE 2000a). There are currently no plans to use this building for storage of nuclear materials.2.1.1 Construction and Modifications at the Plutonium ComplexProjected: The SWEIS projected four facility modifications:• renovation of the NMSF;• construction of a newadministrative office building;• upgrades within Building55-4 to support continuedmanufacturing at the existingcapacity of 14 pits per year;and• further upgrades for long-termviability of the facility and toboost production to a nominalcapacity of 20 pits per year.Actual: During the period 1996–2002,the new administrative office building Aerial view of the Plutonium Complex (TA-55)was completed and upgrades to maintainexisting capacity were undertaken.In 1999, design efforts for renovation of the NMSF were halted and there are no current plans to continuethe renovations. The upgrades included the 1996 installation of a new TA-55 Facility Control System withcomputers and controls located in the Operations Center and the continuing replacement of the main fireprotection water line and pump houses. Explorations for placing parts of CMR and TA-18 at TA-55 beganin 2001 and are continuing. Table 2.1.1-1 shows a more detailed comparison of the projected and actualconstruction and modifications at the Plutonium Complex.2-34SWEIS Yearbook—2002