Document j9DXv898ybKQ2y8JmMk8YbBZ

INTERNAL CORRESPONDENCE CHEMICALS AND PLASTICS /Mr.to (name) R. L. Frantz company Mr. R. P. Keefe location Mr. R. H. May Mr. A. A. Peterson Mr. G. T. Pyle Mr. 0. A. Shelton Mr K. L. Topham P. O. BOX 471, TEXAS CITY, TEXAS 77390 DATE September 17, 1974 SUBJECT Monitoring of VC1 Analyzer I have been monitoring the VFA analyzer since August 19 for VC1 readings exceeding 50 ppm. A tabulation is made each day of the approximate time, the level (ppm), the location of the sample point, and the reason for the point being high if noted on the scan by the Operators. The Operators have been requested to make a note on the scan each time it goes over 50 ppm. Our objective in taking this data is to identify problem areas so that we can minimize personnel exposure. With this objective in mind, I plan to circulate the tabulation on a continuing updated basis for a while. This will give each of us an opportunity to see if the data is indicating a problem area that we should be concerned about and can contribute to a solution. Attached is the data beginning on September 7. FJ/st Attachment Frank Johnson 9/8 9/9 9/10 9/11 Approx. Time 12:30 am 4:00 am 11:00 am 11:00 am 12 noon 12:30 pm 5:30 pm 8:3^ pm 9:00 pm 12:30 am 1:00 am 3:00 am 4:30 am 5:30 am 6:30 am 9:00 am 6:00 am 6:40 am 11:00 am 12:00 noon 2:30 pm 2:30 pm 5:00 pm 11:00 pm 12:30 am 12:30 am 3:00 am 12:30 pm 11:00 pm 11:40 pm 8:45 am 8:00 pm 8:00 pm 9:00 pm 9:00 pm 2:00 pm 4:00 pm 97 74 60 91 100+ 91 56 100+ 100+ 78 52 100+ 62 89 100+ 100+ 74 78 51 100+ 100+ 52 62 100+ 61 59 67 95 85 100+ 53 100+ 100+ 56 56 58 51 1. Location Reason, if known (16) vinyl chloride unloading (4) downstairs, S. line (20) roving point (3) downstairs, North line (20) roving point (3) downstairs, North line (11) Bldg. 119, N side, 3rd level (11) ditto (11) ditto (11) ditto (11) ditto (11) ditto (11) ditto (11) ditto (11) ditto (11) ditto Don't know Think off-gas recovery blowing over Off-gas rec. system (11) ditto (11) ditto (15) Bldg. 119, S. side NW of st. (15) ditto (13) Bldg. 119, comp, room (15) Bldg. 119, S side NW of st. (18) Pilot Plant grating (12) Off-gas rec. fac. (5) 2nd level, E. line (6) 2nd level, N. line (11) Bldg. 119, N side 3rd level (3) Downstairs, N. line (12) Off-gas rec. fac. (12) ditto ? (12) Off-gas rec. fac. (3) downstairs, N. line (6) 2nd level, N. line (3) downstairs N line (6) 2nd level, N line (3) downstairs N line (3) downstairs N line Off-gas overloadedpop valve vent, to air ditto Off-gas compressor ditto UCC 094464 2. Date 9/13 9/14 9/15 9/16 Approx. Time ppm Location Reason, If Known 5:00 am 5:00 am 7:30 pm 7:30 pm 11:00 pm 100+ 100+ 62 50 50 61 100+ (13) Bldg. 119 comp, room (14) Maint. eating room (11) Bldg. 119 N side 3rd level (17) tank area (4) downstairs, S line (5) 2nd level, E line (7) 2nd level, S line Possibly caused by venting HzO during C-10, C-ll changeover Source unknown 6:30 am11:00 am 1 -2:00 pm 4:30 pm 9:00 pm 11:00 pm 11:30 pm Chart did not ink. Chart did not ink. 100+ (2) downstairs E line 100+ (3) downstairs N line 100+ (4) downstairs S line 100+ (5) 2nd level E line 100+ (6) 2nd level, N line 52 (12) off-gas rec. fac. 100+ 51 (13) Bldg. 119 comp, room (3) downstairs N line Draining 07 tank- lost 150 gal. VCl One of the VAc strippers ran over 12 midnight 6-7:30 am 9:00 am 10:00 am 10:30 am 12:15 pm 12:30 pm 1:00 pm 100+ (4) downstairs S line Chart did not ink. 57 (12) off-gas rec. fac. 100+ (12) ditto 100+ (12) ditto 100+ (5) 2nd Level E line 100+ (14) Maint. eating room 81 (12) Off gas rec. fac. Pack gland off gas corrf Off gas comp, packing D-3 chg HzO Chg valve Vented SH Venting SH 4:30 am 51 (7) 2nd level, S line 5:30 am 50 (4) downstairs, S line > UCC 094465