Document k9xmQjXOXyDVkbxnO8mb7nqyB

APPROVED BY: DATE: 5/92 FILE: SOP31CTW.LOW I LOW LEVEL IN COOLING TOWER OPERATOR'S NAME PATE: dj ^ ^ ^ ^ ^ ^ yAj ^ ^ ^ sJLr ^ ^ ^ ^ ^ dj ^ ^ ^ ^ ^ v|^ ^ ^ ^ ^lr ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ *i-* ^ ^ - i ^ ^^ ^^ ^^^ ^ ^ ^ ^ ^ ^ ^*i ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ fp ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^p ^ ^ -^*1 #p ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ .1. VERIFY LOW LEVEL ALARM IN COOLING TOWER BY VISUALLY CHECKING LEVEL. .2. IF LEVEL IS LOW, CHECK THE CONDITION OF ALL OTHER BASINS AND OBSERVE THE SABINE WATER MAKE UP VALVE AND ENSURE IT IS MAKING UP WATER AT A RATE TO CONTROL BASIN LEVEL. ADJUST THE LEVEL CONTROLLER TO INCREASE MAKEUP IF NECESSARY. KEEP LEAD OPERATOR INFORMED OF YOU ACTIONS AND CONDITION OF COOLING TOWER. .3. ADJUST COOLING TOWER RETURN WATER TO ENSURE EQUAL HEAT DISTRIBUTION. .4. IF LEVEL IN COOLING TOWER BASINS CONTINUES TO DECREASE, THEN ADDITIONAL WATER CAN BE ADDED FROM SEVERAL SOURCES DEPENDING ON OPERATING CONDITIONS. A. BLOCK OFF ANY BLOW DOWN B. SWITCH ANY WATER GOING TO THE CLEAN WATER DITCH TO THE BASINS. C. USE LEVEL CONTROLLER BYPASS D. IF LOW LEVEL IS IN #1, 2, OR 3 BASINS, RAISE LEVEL IN #4 TO INCREASE OVERFLOW. E. USE WELL WATER MAKE AS ANOTHER SOURCE OF MAKEUP F. TRIP SPRINKLER SYSTEM TO COOLING TOWER IN FIRE HOUSE. 5. KEEP YOUR OPERATOR AND LEAD OPERATOR INFORMED OF COOLING TOWER BASIN LEVELS AND OF ALL YOU ACTIONS TO CONTROL THE LEVEL. LOSS OF COOLING TOWER WATER TO THE UNITS IS A CRITICAL SITUATION. .6. SEVERAL THINGS CAN CAUSE A LOW LEVEL IN THE COOLING TOWER, BUT WE HAVE SEVERAL SAFE GUARDS TO KEEP US INFORMED. A. LOW AND HIGH LEVEL ALARMS B. AMP METERS ON ALL PUMPS WITH DEVIATION ALARMS IF THE AMPS DROP BELOW THE RED LINE SET POINT. C. CHECK VALVES ON PUMP DISCHARGE. D. SEVERAL SOURCES OF MAKE-UP WATER E. MEANS OF CROSS CONNECTING COOLING TOWER BASINS. $L 010608 CONFIDENT1**'1 otectivc Or (ter 1 District. Court