Document EJYjxj827wRwOn4mdyNjX4dx

VINYL CHLORIDE AD-HOC COMMITTEE MONITORING DATA SUMMARY 5. Perimeter data suggest regulated area boundaries approximate 1 ppm levels for the prevailing southeast wind. The "action level" of 0.5 ppm is suggested to encompass units in the adjacent block tier. Attacned are data summaries for March 1-13 by building. Listed are the low. high, and mean of all personnel monitoring for both time-weightso averages and excursions. Elevated TWA levels at Solvent were taken at the reaction unit at Bldg. 115 and reflect nigh excursions for which respirators were worn. This is, in effect, a measure of potential exposure, since the employee was protected during periods of known high concentrations. Our action plan for control has been accepted by OSHA under the Emergency Temporary Standard. Non-Solvent/Suspension 4 15 ppm - 8-hr. TWA (3) Solvent 4 20 ppm - 8-hr. TWA (2) Distribution (earlier data) 4 1 Ppm - 8-hr. TWA Laboratory (earlier data) 1 ppm - 8-hr. TWA All samples were collected in duplicate. The higher value was reported. A total of 35 pairs were collected, 24 pairs of which (69%) were acceptable within the required 95% confidence limit. D. E. Deese March 18, 1975 Attachment ec UCC 091271 ;ept PERSONNEL MONITORING S|UMMARY DATA March 1. 1975 thru t. i. Deese 3/T 8/75 '5 minute excursions Sj >0 : ::a |S JTT, dPPM ppm~range LOW ; HIGH MEAN March 13. 1975 time-weighted average NO . NO PPM RANGE Of Off S p mo PPM _LL Jim JiL : 01VENTS AREA Oleg;. 1T 5 idc. n; QIda 121 ' ?? ! I 1) 0) ;d 2___ 2_TJ 9.37 176.34 147.85 2 i 1 i 0.35 i 1.83 ---- ;------.........-4 (2) ; (2) 20.1 7 20.55 : 1 09 120 :U 2._|_ 2_ 1.77 -Q9- Rj 1 0_ .. 5.21 .49 7.44 ! 1 .32 2 ! 1 0.02 2.16 I 1 .09 6, REMARKS NON*SOLVENT/SUSP5NS 10N_ AR EA_ Bldg. 120 B'.dg. 17A 6 i 5 0.06 2.14 .22 17 ho 0.17 15.04 2.86 i (1) Respirator worn. _(2w>pC_r., exposure level averages include the high extii, rsi.cin Levels | dnr i ng |a iicbrrico the employee wore respiratory equipment. (3) The high reading_was on a rigger working in the are.a. 'All ODerctor readings were below 3 pom". "" ~ """ ' T ---1 (4) Duplicate does not support thijs reading. "T uc c091272 _J______ SUSPENSION NGN-SOLVENT/VINYL, REFRIGERATION UNIT VCM ACTION 11 NAN FOR 'COMPLIANCE i, TV; 1 S S i I I n S OUTlt i; in - - i - i`:l l l i . t Pr ot--e--c---t---D---e---s--c---r-i-o---t-i-o---n----!--o--r----C---o--m-- pp--l-i-a---n--c--e-- Monti', No. I VCM rec. system to allow recovery of contained vinyl chloride (5,000 lbs VCl/day), in the M. P. vent bv scrubbing in Solvent Vinyls acetone stripping system. Status as of 3/14775" Oomple te ' -/ension ! :. 7 . Modifv "Z VCM rec. system to send H. P. vent stream (Z, 5U0 Ibs/day VCMito the pi Powerhouse for burning; in boilers as fuel. Complete O i! -na.i II. P. cent Modify Oft-gas re*.. system ;to send H. P. cent (53S lbs VCM/davt to ihe ^ 1 Powerhouse for burning in boilers as fuel. Complete s*. ,-c^J' jL- *> / * bus pens ton V C1 So'vent sc rubbing svstent Recover contained VCL in NpnSolvent. Suspension, Off-dlas HP vents bv scrubbing in MEK stripping system. Nos. 3 (c 4 Stripping Tank effluent Recirculate *4 st. tk. effluent and increase temperature of #3 sit. tk. to minimise atmospheric releases of VCM (400 lbs/day). f S' - : Engine*** are. c ample te. Engineering/Prr duction tea m to.expedite system ins tallatior.. by (^et. I*475 has been assig ned. Operation by Nov. 1. A ccountability: Leroy Dampman/' D. Walthal, A. A. Peterson ,1 Uv Steam a<T5i tion system~was-im s talled on it 3 st. tk.- on-1 1 fZh. Pr esently re pair ing.-rec-i r c-u lat* pump for use by 3/31. Account ability: R. P. Keefe Ol l-Gas Recovery Sys tern Install spare vacuum pump tb im prove vacuum stripping of slurry. lap-i-tal buc-get reque&t-has Iieen _______ * ^_ -r _ ,. W-P/T'Ar- Accountability: R.Q. Payne, A. A. Peterson. Esti mated cost: $100 M Vcc i)91273 Suspension^ Non --.Solvent Vin^l Ret. l. ntt \M Ai lion ;'lan For Cumuli dIK'P -,n ^!)ii rt s 'Nvnect Description For Compliance S tatus as of 3/14/75 ;. ia : . ini'1 ; No i: -S o -uiit) Eliminate decanting of Non-Solvent ret. monomer tks. to the atmosphere, i 144 lbs V CM/day). Piping mo difications to-allow decanting of rec. monomer tks, to a closed vessel instead of the sewe r wer e completed on 10/3. Ins mimenf ation tor automatic decantin will be completed bv f/15. At countability: G. Pyle >i, i i *m: i >= ini!) 11 r.'. Eliminate operator exposure during joil-off sampling. Comp le te _j.= :.n.i im\f ' -10 ! Sus'ienM -m Eliminate decanting of Suspension rec. monomer Iks. to the atmosphere, i 1 On lbs Y CM/day i Complete ."Mi l?.v n root ire dts cs Replace autoclave rupture disc type PLDV w/more reliable type RB-90. Complete BDT/VST rupture dis is Actoc laves - hi g h reai tion pressure Eliminate BDT/VST rupturq discs ruptures by installing DMV'k on blowdown tank feed headers to avoid autoclave blowdowns during vacuum s tripping. A DMV wa s installed in the feed header to It he 1 BDT on 11/4 w / a dr arc atic decrease in number of blown rupture discs, Five rema ining BD tk. feed headers wf 11 be modified by July 1975 Accountability: A. A. Pete rson Eliminate atmospheric releases Issued nevjt SOP. of VCM during high reaction pressures. Suspension surge tks, dryer exhausts Batch vacuum strip resin to minimize atmospheric releases of VCM and re duce VCM content of resin. w V i- w 1 iitX. , L: ' '"* e J * Batch stripping with #5 BDT wa started 3/5 with impressive re duction in residual VCM. -Qihei aro being checked by. TM-befor<>. revts ingT. Accountability: A Peterson Mem-Solvent surge Continuous strip resin to minimize tanks,dryer exhausts atmospheric releases of VCM. Complete VC 1 filter? Install piping to vent VCl filters lo the *f3 st. tk. prior to opening for maintenance. Complete UC<t 091274 us tension/Non-Solvent Vinyl Ref. Unit UM Action Plan For Compliance 9 remission Source Protect Description For Conjipliance S tatus as of 3/14/75 'irr.ioL: VCM pumps Evaluate several means of priming VCl pumps to eliminate atmospheric releases of VCl during priming. Complete ; ,nd new procedure implemented ;\c agitator Test several packing designs to : ulurt*s minimize packing failure frequency. Discovered k corrected qualitv control problem w/vendor c.f existing packing. -Also evaluat ing new packing design for this service. New seal design uom- .. '1 . . ** f , *7- w . fi plede k-re4d^r-to~r. m.. t w/H,C Ar N2 pressure" to be trie: "beJore production. . Account- abilitv: M. May -c;: ;v. . ive ro s ; u Main!. 'Mod prep aration eating fai llities Redesign autoclave resin sampling equipment to minimize operator exposures. Install a temporary bldg, to relocate maintenance food preparation and eating facilities. Have insta Ilea samplers on all lines. Ac* ;ountability: R. P. Keefe. F. L. Johnson Complete ITesh'rec. VCM feed pump seal replacement Eliminate VCI packing leaM from fresh & rec. VCl feed pumpi. Install JO-point VFA sequential VCl anaiyzer in B- 1 JO control room Provide additional monitoring capability in the Suspension/NonSolvent department. Install "data-logger1 for VFA sequential VCl analyzer Improve VCM exposure data analyses and reporting capability in the Sus pension/ Non-Solvent departrtient. Replace pa.eking w/mechanical seals by 4/75, Accountability: R.. P. Friru rem ' jut *. * -d# . Wh*ry - Ap'-; h 1975 M-*-* Bclivotuy -I 1975 Surue tanks atmospiierii vents Purchase & instaLl compressor to transfer atmospheric surge tank vents to the #2 VCM rec. system. No action to date Bird Effluent re cover v s vs tern Re-use Bird effluent water rather than dump to the sewer. **4 di aw iugs d.MaJw+rt l - SO P en. Vj/'t UCC 091275 S^ Af-v Susoension Non-Solvent Vinyl Ref. Unit VCM Action Plan For Compliance 10 Emission Source Project Description For Cojnpliance Status as of 3/14/73 '/Cl i.maerground barrel pump seals Install double-seal arrangement on underground VCM pump seqls to minimize seal leakage. Double-s als have been receive Engineeri ng is presently desigr ing seal l ube system. Plan to have otrs al in service 4S/15 VCM less in MEK Reduce MEK washings & hence, VCM loss by installing direct steam injection system on each D + autoclave Direct-st sam injection tests or D-3 autoc lave since Znd Qtr 7indicate tfie usefulness of this technique An OIP for conver' ing all D- autoclaves has been written. Eng. toAwrjifiLon 3Vj1_Z 7 - Accountability: A. Peters on/J. T. Tannos Nash-ilvior seal water Recover VCl A- VAc contained in seal water Complete Nash i oppressor seal replacement Eliminate VCM packing leaks from Nash compressor. Comple te VCM compressors packing vents Install exhaust fan on compressor room to minimize personnel exp. Comple te Pilot Plant VCM emissions Recover VCM emissions from the Pilot Plant Operating procedures revised to send V CM emissions to the U Rec. 1 ys tern. UCC 091276 SOLVENT RESINS AREjS VCM -------------------------------------------------------------------------------------------------------------1----------------------------------- ABATEMENT PROJECT STATUS 11. :vot Expected Completion Autoclave mechanical seals - scheduled completion lor B-10 was 3/10; delayed due to bent shaft, shop scheduling difficulties; other problems. uncertain Dvnatrois - ail units installed; calibrating and nutting m service now 3/28/75 11T Pressurization - still need final wir-ng installation and old duct removal Regulated Area 115 Lab - many problems getting the hood; may be forced to use another hood or make our own 3/21/75 in operation 3/3 / 75 Relocate 5 VFA points to 121/122 complete New VFA and Microcomputers - shipping delayed, due approx. 4/8; initial programming data complete 5/1 75 Respirators - 50 interim respirators in stock coniplete Stripping Still #2 - installation of 8 new trays in progress; delay expected due to discovery of cracks in old column Tank Area 1 pump seals - design work iri progress VC1 isolation valve system - design work in progress New OVA with VCl-VAc column - on order 3/19/75 uncertain est. 5/15/75 uncertain est. 5/1/75 3/3 1/75 Toxic gas alarm for vapor cloud procedure installation in progress 3/2 1/75 UCC 091277 oi.reru He = lns Area '.'CM Abatement Project Status Project /CM containing vents - in final design stages; installation to betzin 4/15 " equi red \ Cl. 1 >rde r 'vnrnpg 1 zittns -- on hand or on Page 12. Expected Completion 5/15/75 3/21/75 UCC 091278 NTERNAL CORRESPONDENCE '.HEMICALS AND PLASTICS u. e. z 13. ____________________________ RECEIVED MAR 3 1975 P. O. BOX 471, TEXAS cM'TE.Tff>9ffN Pf0tD R "T- -ame; PLANT LISTS A, B, JVP^NV 4T''''j Texas City Plant LC ate February 35, 1975 ,lr. R. N. \V heeler, 514 subject VCM Regulated Areas As required by federal law concerning vinyl chloride/polyvinyl chloride, the Vinylite Units are establishing regulated areas into which only authorized and properly trained persons may enter. These are areas in which vinyl chloride or polyvinyl chloride is processed and in which the level of vinyl chloride may sometimes be above one ppm in air. Federal law does not require these areas until April 1, 1975, but they will be im plemented on a trial basis beginning March 3, 1975. The Regulated Areas are shown on the attached map. Everyone entering and leaving these areas must, by law, be registered on a Personnel Log (copy attached) which will be kept in Bldgs. 117, 119, 121, 157 and 174. Training sessions will be held to acquaint people more fully with the vinyl chloride subject. Please convey this to your affected personnel. / st Attachments UCC 091279 tI +-- 4th St i< i t - - * --f- ur-li -I J. --4 -L 4 i'liK': Y'h 7S< ----------- [j 78 i j i.j -a 120 127 M3 L _ -J / 157 121 128 114 / O TH Si < a r" 1 o X/ o/ o X M5, 'O to o00 CT 9 H UCC 091281 WTl DA I 1 I J 1 3 t !s !t , l a 1 110]H j 12 il in is |6 17 IS .i 21 j 22 2j|l*[j%|?6\v\?i |H A JE aSL J-T-LlJj 1'[. i.^uMi'iKi. i.i VCM lti''.GV I.\T! .T AkGA.S UNION CARBIDE CQKPORATl' -N 31 *a b* ft|3b J? 1 IS |j Ho|tJ Nl ' + H ' 4b 46 1 i 1 i| t ^rr1 7i .,J__ n bi> U}|Ift I i tu i i i U. J ti., f +- t*-}- t >- i-