ASTRID CONTRACT TECHNICAL SERVICES, INC.
Sandblast (if required), wire brush, prep, clean, repaint the exposed, exterior portions of all eight draft tube fill valves, sixteen draft tube drain valves, the 24" TWD header, all deluge & fire water piping, both raw water strainers. These are all located in the penstock gallery el. 279 or adjacent inspection gallery el. 276. Other power plant work will include the eight unit raw water strainers located in piping gallery el. 312. In the inspection (lower) gallery of the dam the contractor shall sandblast (if required), wire brush, prep, clean, repaint the exposed, exterior portions of five sluice gate hydraulic cylinders, access hatches, and fill & drain valves, and two sluice gate hydraulic pumps, motors and one sump, 2 large raw water supply valves located in the operating gallery blocks 8 & 15, the operating gallery block 7 "Y" raw water supply lines, the entire penstock fill system piping & valves, the uppers and lower sections of the eductor & sump pumps/piping located in both galleries at the Richard B. Russell Dam and Lake Project.