Document 6RvrxY2y5zm39nmV0rpN4Qwko

CertainTeedH EF Mail Cooe ---------------------------------------------------------------- Mark Kennedy 1125/4 Subject PERSONNEL VCM MONITORING From Bruce J. Brocka Mail Cooe ; Ext LCH #283 22 ; Date ji 10/2/90 Cf: VCM.WR1 As you requested, Activity Log Sheets for employees monitored for VCM exposure on August 20/21 are attached. Persons engaged in tasks where there is potential exposure to VCM are wearing respirators as noted on their activity log. In an effort to check the accuracy of Personnel VCM Monitoring Results, the values obtained at site specific locations in the Polymerization Building monitored August 21, 1990 were compared with the closest ARCAS Ambient Air Monitoring locations for the same monitoring period. The results are as follows: PERSONNEL VCM MONITORING ARCAS AMBIENT AIR MONITORING LOCATION VALUE LOCATION VALUE 1st Floor Poly. ^|Bldg, East End ^^Near Charlie 0.23 PPM GC2 Stream 6 1st Floor Alpha/ Bravo 0.32 PPM 2nd Floor Poly. Bldg., On Top of Delta 0.55 GC 2 Stream 10 2nd Floor Charlie/ Delta 0.37 3rd Floor Poly. Bldg., Above Franco 0.25 GC3 Stream 2 3rd Floor West End Franco 0.29 Also the results of the duplicate monitoring on Bob Fink which was not included in the fax of 9/28/90 should be 0.02 PPM VCM. CTL000145