Document ebzELrMd7v5VZ2OZJ5eYEVGE

InNwHIci To: P. J. Kober From: Date: Subject: j. M. Edwards October 26, 1989 BLOWDOWN TANK PUMP RELEASE 07 10/24/89 The purpose of this memo is to document the accidental release of New Module blowdown tank water on 10/24/89. The total conservatively calculated was 0.088 pounds of VCM in a one second event. Blowdown Tank Temperature Blowdown Tank Pressure Blowdown Tank Pump Discharge Pressure Release from 3/4" Hills McCanna Ball Valve 150F 40 psig 60 psig 1 second duration Cv^55 Valve Opening 75% Phvsical Specific gravity of liquid in BD Tank Weight Fraction of VCM in Liquid 0.9806 0.00431 The following equations were used to calculate the release; X (weight fraction) - exp [7.74x10^-9.0] P/P Q (flow) If there are any questions, please see me or refer to file for the calculations. A Process Engineer /tjs cc: RWS, RBN, FGJ, SCH File: 8.5.2 VAB.0001215127