Document 2JEdNo5mN46ZJEwvvBYKZk0r

ABD00283651 (conoco) Interoffice Communication to DISTRIBUTION From J. R. McCrimon Date February 20, 1979 subject BLOWDOWN TANK STRIPPING PROCEDURE R 1. Maintain tank temperature at 175F until it is ready to be stripped. 2. When the water level in the tank reaches half full, set the steam stripping temperature controller at 230F. NOTE: DO NOT ALLOW THE TANK TO GET MORE THAN HALF FULL WITHOUT STRIPPING. 3. Use the Reactor Recovery Systems to recover the blowdown tanks in both units. 4. When the water temperature reaches 230F, begin pumping the water out^ Leave the steam stripping temperature controller set at 230UF until pumpout is complete. 5. Use steam pressure to break vacuum on the tank if required. DO NOT USE VCM PRESSURE, because it will reabsorb in the water. 6. Reset the steam temperature controller to 175F after pumpout. Obtain a water sample from each tank once per day for laboratory analysis. By law, this stripped water must be below 10 ppm. J. R. McCrimon Operations Engineer jf C : m ELK, JEB(5), DWH, RAF, CONTROL ROOM BULLETIN BOARD(2)