Degenkolb was prime consultant for the SPC4D / NPC4 seismic upgrade of the 1964 steam plant serving the entire Loma Linda Medical Center and Loma Linda University. Through analysis and investigation, we were able to eliminate the soil improvement identified in the geotechnical report and focus the strengthening in areas of minimal impact at the perimeter of the plant. The work included planning and integration of NPC bracing for the equipment and distribution lines while the facility was in operation. This included distribution through the tunnel system from the plant to the hospital. In addition, multiple critical pieces of equipment were upgraded during the construction process. As prime consultant our work covered coordination with multiple agencies including the SoCal Edison, City of Loma Linda and the Air Quality District, which regulated specific aspects of work in the central plant.