Document gbKmoDmr4nnOOxq4vmaEkRYdL

V To: Distribution Interoffice Communication From: Date: Subject: Brett Bass October 29 1986 VCM LEAK DETECTION SURVEY Attached are the results of the completed 1986 Comprehensive VCM Leak Detection Survey. A total of eleven (11) leaks were detected and repaired. Every connection, flange, valve, etc. on the at tached Isometric drawings was checked with a portable hydrocarbon detector (HNU) The points with readings above 50ppm with the probe as close to the equipment as possible were considered leaks and were noted. A tabulated list of all the VCM leaks reading over 50ppm is attached. A bar chart showing a decrease in the number of detected leaks over the past seven years is Included on the following page. If there are any questions or comments, please advise. . 6. E. B. Bass PROCESS ENGINEER J. B. Popp PROCESS ENGINEER /beb cc JF, JW, DWH, VEM, CWT, RAF, MLN, TFL, JGC r