Document Gm7pxvGGEM66aq3Mb7yOK1wQn

II 1 I I ^ WW I IMkaJl" ^ I M . PLAINTIFF'S EXHIBIT MBL-203 oats November 13, 1975 C. R. Eastman D. S. Miller V. 0. Mitteriehner R. <7. Potts, M.D. L. Ryall J. K. Stewart, M.D. Z. Averill - New York - New York - Beaumont - Dallas - Beaumont - 3eaumont - Edison INDUSTRIAL HYGIENE SURVEY EH #92-75 Mobil Chemical Company Petrochemical Division Ethylene-Aromatics Plant 3e aumont, Texas 13 to 29 October 1975 Attached please find the report of the Industrial Hygiene Survey of the Beaumont Ethylene-Aromatics Plant performed by Russel L. Witzke, Indus trial Hygienist, during the period of October 13-29, 1975* Specific recommendations are contained in the report covering noise control and audiometric testing of noise-exposed employees, improvements in house keeping, environmental sanitation and safe work practices or procedures, e.g., corrosive materials, asbestos, and protection against ultraviolet radiation from the welding operations. After you have had an opportunity to review this report, please feel free to contact Mr. Witzke at the Beaumont Refinery (Ext. 712) for any addi tional information or assistance you may require to implement these recom mendations. LL:bh Attachment Lester Levin Chief Industrial Hygienist 002236 183902 ~>,rrran*'`.7''.,'rr^* 'V* An industrial hygiene survey was performed by Russel L. Nitzke, Industrial Hygienist, between the 13th and 29th of October 1975 at the Xobil Chemical Company, Ethylene-Aromatic Plant, Beaumont, Texas. The primary purpose of this survey was to evaluate employee exposure to noise, benzene, toluene. environmental sanitation, and housekeeping conditions. II. SUMMARY 1. Noise A. Findings 1. Based on personal noise monitoring, employees assigned to the Ethylene Unit were found exposed in excess of their permissible limits (OSHA Regulation 1910.95d). 2. Noise levels are 90 dBA and above in all process areas of the Ethylene Unit, which is an increase above the December 3, 1973 noise level survey made before the plant was expanded. 3. Noise levels inside some operator's sheds and the compressor control room, although below the OSHA limits, are judged high for an efficient and comfor table work environment. 3. Recommendations 1. Signs should be posted at ail entrance ways, or no further than 75 feet apart, encircling noisy areas stating, "Caution - Hearing Protection Required in This Area". 2. Noise levels inside certain area operator sheds and the compressor control room should be reduced to below 80 dBA, which is considered safe from an exposure duration standpoint. 3. Personnel working inside posted areas must be required by their supervisors to wear hearing protection throughout their work duration and enforcement is emphasized. U. Employees should have annual audiometric examinations scheduled by Employee Relations/Medical sis required by Mobil Hearing Conservation Policy and OSHA Regulations. < 5. Specific noise reductions through acoustical engineering treatment of equipment is found in Section III 2.3. 002237 183903 2 2. Aroma~ic Valors A. Findings The benzene unit operator, railcar, and barge loading personnel are exposed zo concentrations veil belov the action level, vhich is one-half of the respective TLV limit for benzene and toluene. 3. Recommendations 1. Our industrial hygiene survey of August 1974 (VR-59~7!i), recommended improved drainage and collection in the benzene truck loading area. This should also be provided at the rerun tover bottom truck loading station. Spilled materials should be cleaned up immediately after they occur. 2. An NIOSH approved organic vapor respirator should be kept in a sealed cabinet at all loading facilities. When the seal is broken, a replacement should be made and the old unit discarded. 3* Znvironaental Sanitation A. Findings Ail toilet and shower facilities were found in generally good repair and kept in a clean sanitary condition. There is a lack of toilet and handwashing facilities in the maintenance and lunch room area (OSHA Regulation 1910.141 C and D). 3, Recommendations A toilet room with two water closets and four handwashing lavatories with hot and cold water would be adequate in the maintenance area, if used by both Mobil end Rosendahi employees. 4, Housekeeping; A. Findings General housekeeping within the unit battery limits was found good. The instrument and fabrication shops are kept in a disorganized and filty condition. 3. Recommendations Attention should he given to reorganizing stocked materials and cleaning neglected areas. The maintenance area, instrument shop, and warehouse also require specific attention. 5, Hazardous Process Chemicals A. Findings Information on the safe handling of locally purchased yard chemicals is not 002238 183904 available. Some of the employee work stations were not constructed with ^ *nai ng cm.iicul v vO nand^e po-C6Hi.^fl*i i y u&Zcii'dous storage areas and some chemical mixing tanks were not properly identified. 3. Recommendations 1. Material Safety Data sheets must be obtained on all hazardous materials from the suppliers, preferably by the Purchasing Department or Safety Advisors. 2. Wooden decking at mixing tanks should be replaced with metal decking and stairs. 3. Mixing and injection tanks should be identified for hazardous material contents, ie., "Caution - Corrosive Material", etc. 6. Asbestos h * xncLxn^s No asbestos-bearing insulation is being used. Even though new insulation is asbestos free, removal of old materials requires written handling pro cedures and use of respirators as indicated in Mobil Policy, Guide 03-1308. 3. Recommendations A written asbestos removal procedure must be provided and employees trained in its provisions. An example of minimum requirements is shown in Appendix 7. Ultra-Violet Radiation A. Findings Workers have adequate eye protection, but workers in adjacent areas are not protected from ultra-violet radiation produced by welding in the fabrication shops of Mobil or Rosendahl. 3. Recommendations Portable curtains would reduce adjacent area worker exposure from ultra violet radiation produced during welding operations. III. INDUSTRIAL HYGIENE SURVEY 1. Noise Exposure Noise Dosimeters - Daily sound exposure was calculated and registered by a calibrated General Radio Personnel Noise Dosimeter, Type 19^. A registering monitor is fastened to the shirt pocket and a microphone is clipped to the worker's ear or the closest approximation to his ear. The d3A weighted network sound levels are read on a General Radio 19^ Readout Unit,- as the percentage of the allowable OSHA exposure. 002239 183905 The monitor has a lov cut off point of 39-5 c3A which prevents error due to sound levels "below 90 d3A. Sound levels exceeding the maximum 115 aBA permissible noise exposure level limit are also registered. All readings in Table I are corrected for an 3-hour work shift. 3. Results and Discussion Employees working in the Ethylene unit were exposed to between 50 and greater than 1,000* of their permissible time weighted exposure limits. Consequently, none of the Ethylene unit operators are exempt form audiometric testing, based on normal, day-shift sampling. Operators working in areas rfl, it3, .VU, & #6 were subjected to noise levels where over exposures occurred as presented by data summarized in Table I. About o0% of the workers sampled used hearing protection, this represents a marked improvement, but still relatively no discipline by enforcement has taken place. Maintenance and instrument personnel are exposed to different noise levels because of their job assignments, which change frequently. Significantly, personal evaluations of noise exposure cannot effectively be made by the worker. This is evident from the data gathered. Maintenance personnel working inside the Ethylene and 3enzene units must be encouraged to use hearing protection. 2. Ambient Noise Levels A. Method Noise Level - Measurements in decibels (dB) were obtained by using a cali brated General Radio Sound Level Meter, Type 1565-3 using the A and C weighting network with the slow meter response. The A network simulates the speech frequencies and is the scale on which the- 0SEA standard is based. The C network gives a more equal weighing to all frequencies, thus giving a flatter response to the overall noise frequencies. 3. Results and Discussion Noise levels in the Ethylene Unit have increased after the plant expansion from an average of 9^ dBA to 97 d3A. Figures 1 to 5 show noise levels by location on a unit plot plan. Our industrial hygiene report of December 1973 recommended certain engineering controls which, unfortunately have not been implemented. We reiterate the following acoustical treatment meaisures. Area #1 and#6 An acoustical engineering consultant of the burner manufacturer should be contacted to design an effective noise reduction program. Mufflers can be installed on electric motor air intake cooling fans to reduce high noise levels by unit pumps. Vented steam should be muffled especially where deaerator drum discharge lines are near furnace decking or ground levels. 002240 183906 -5- Area ^2 An acoustical plenum chamber should be installed under the base of the Rerun Tover Reboiler to reduce burner air intake noise. Air intake mufflers should be installed on electric motors for pumps G-H9 and G-2427-A and alike pump motors. Area ^3 Gear box and compressor heads should be enclosed on compressors G-251, G-35I/751, and G-651. The windows should be removed from the compressor deck control room because they offer no protection from an explosion and leak noise into the control room. Noise levels are just under 90 dBA, much too high for a control room area. Area Suction piping from compressor G-o5i, located in the understructure, should be enclosed with an acoustical barrier. The noise levels produced here carry into the adjacent areas. Air intake mufflers should be installed on pump motors located by the lov Pressure Condensate Tank. Other pumps to be considered are G-302, G-2303-A, and alike. Acoustical lagging is suggested for noisy turbines like T-iio and T-117. Noise levels need to be reduced in the operator's shed to below 80 dBA. Area #5 and 1 No acoustical treatment of equipment is suggested 'until Areas #3 and #k noise levels are reduced. Area #8 The cold train expander valve should be enclosed with an acoustical material. Hot Train Furnace burner noise could be reduced with the instillation of quiet-type air intake mufflers and orifices. An acoustical plenum chamber is suggested for the air intakes on heaters 3-21Q2-A and B. The valves for venting to the atmosphere should be enclosed because they are leaking noise. Suction piping to compressors #1, #2, #3* & A . and the piping on the west end of exchanger 2106-A need acoustical lagging. Benzene Unit Air intake mufflers should be installed on noisy pump motors like M-216 along the main row. Boiler House The deaerator drum air discharge pipe should have a muffler installed to reduce the continous 118 noise level. An acoustical block barrier should be installed around the blower intake for the boilers. 002241 183907 -o- 3. Aromatic Vanor Bamling A. Method Breathing zone and work room area air samples were collected by drawing air through a charcoal tube with a calibrated Sipia sampling pump about 50 cubic centimeters per minute. Breathing zone samples were collected by placing the pump on the worker's belt and clipping the charcoal tube to his chest. The collected samples were sent to our Pauisboro R & D labora tory where benzene, toluene, butylene, propylene, and total aromatics were extracted with carbon disulfide and analyzed by gas chromatography and reported in milligrams total weight. B. Results and Discussion The results of the air samples are summarized in Table II. This data indicates that the employees are well within the TLV for each individual aromatic vapor sampled during the survey. However, if the effects of the aromatic vapor mixture is considered as additive, then each employee exposure is evaluated by the following formula: C/T + C^/T]_ + C2/T3 ... equaling a mixture unity limit value of (1). C = Concentration of contaminant sampled. T a TLV of contaminant, ppm or mg/M-3. The samples taken in the breathing zone of men filling rail tank cars, trucks or barges, and unit operators were well within the limits for an aromatic vapor mixture. The only sample which can be regarded significant, was the general area down wind from the product shut-off valves on the wharf, which was 0.76 of the mixture unity limit value of (l). Organic vapor NIOSK approved cartridge respirators have been issued to loading rack operators. They were located in employee lockers and were of no benefit to a worker when a spill occurs. It would be better to install a window cabinet with loading facilities that could be sealed. When the seal is broken, the respirator must be cleaned and have new cartridges and the old ones discarded. A permanent drainage system needs to be installed at the rerun tower bottom truck loading facility. Spilled materials have soiled the surrounding area from the excess material leaked from the loading hose. U. Environmental Sanitation Toilet and handwashing facilities were inspected for their repair and sanitation, and were found to be in good condition. The kitchen facilities and change rooms were adequately lighted, kept clean, and free of toxic chemical storage. The maintenance area is over 200 feet from a permanent toilet facility. The employee lunch room is also located in this area which has an insufficient amount of handwashing space. Rosendahl employees are provided with only cold water for washing. There are two portable non-water toilets in the area, for 80 maintenance employees, with about 10 workers usually working full time in this location. 183908 002242 5 Housekeeping A. Results and Discussion Except for chemical drum storage in the process units, housekeeping vas very good inside the unit battery limits. The instrument and maintenance shops were found dirty with unorganized storage of spare parts. Garbage hew accumulated behind the fabrication shop at the part storage area. 6. Hazardous Process Chemicals A. Results and Discussion work stations in the water treatment section of New Hot Train in the Ethylene Unit were found unsafe for handling corrosive materials e.g., hydrazine. A wooden platform three feet in height without stairs located at a mixing tank vas so situated that an employee would have to lift a five gallon bucket to this height before climbing on top the platform. Chemicals in fifty gallon drums were scattered throughout the units which did not match their specific injection station. Most of the new slurry injection tanks were not identified for their contents and specifically, handling precautions of hazardous materials were not stated. In another area, a pump was leaking 1% NaOK solution which was not restricted by a barrier. This area should have been restricted to authorized-personnel only. 7. Asbestos A. Results and Discussion Warehouse storage was checked for asbestos-bearing insulation and found free of this material. The asbestos vicking stored in the warehouse is not asbestos free and should be stored in plastic bags. Even though worker exposures are considered nill, a respirator should be used when handling this material. There is no general written policy for removal of old asbestos-bearing insulation, which includes handling and disposal. 8. Ultra-violet Radiation A. Results and Discussion Workers in adjacent areas to the welding operations in Mobil and Rosendahl fa&rication shops are not protected from ultra-violet radiation produced from welding arcs. RLW:rma Russel L. 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W itzka In s tru m e n t: G eneral Radio .. s = U s in g p r o t e c t io n ; Ho = n o t u s in g p r o t e c t io n , r . it o r re g is te re d so;md le v e l g re a te r than 115-  .iu MOBIL OIL CORPORATION Noise Survey Bata Sheet Plant: Mobil Chemical Company, Petro chemical Division Area or unit: Ethylene Unit Late: 13 October 1975 Study 3y: R. L. Witkze Operating Conditions: Normal Instrument: General Radio 15o5-3 ( } Time { 1 I j l Location of Microphone NEW HOT TRAIN Weighting* Network A1C ( [ 1 11:30 * Zw 11: 3U ! 11:35 ! 11:36 , 11:38 i 11:10 ! 11:42 11:11 I 11 r} ,X1-1-.J:14t 50S 1 12:52 | 12:53 ! 12:51 12:56 13:15 13:16 13:18 * 13:20 13:22 13:23 13:21 13:25 13:26 13:2T 13:28 13:29 13:30 Under furnace 2301-3 Motor for pump ^G-2133-A East side of drum 2101 East side of filter 1-2106-0 East side of drum 2120 Fuel gas valve ?CV 2201-D Burners on furnace 2301-E 3urners of furnace 2301-L Ground level oetveeri furnaces 2301 B 4 C Fuel gas valve PCV 2201-3 Ground level between furnace 2301 A & B Under heater 3-2102-3 Under heater 3-2102-A Steam valve PCV 2l3l Turbine for boiler feed pump G-2107-3 East side of drum 2201 Valve PCV 2l23, vent to atmosphere Under-east side of compressor deck East side of drum F-2203 Under center of compressor desk Under vest side of compressor deck Turbine for compressor Compressor 81 Compressor 82 Compressor 83 Compressor 8k East side of drum F-2101 West end of exchanger 2106-A (piping) 93 89 95. 91 91 ' 97 95 97 92 98 97 101 107'' 95 96 91 99 99 97. 102 95 97 97 97 96 96 92 106 94 91 95 91 91 97 95 97 92 98 97 10U 109 95 90 91 99 99 97 102 95 97 ' 97 97 96 96 92 106 ' Remarks J1| ( ( i 1 ! 1 * Sound Level Meters response at d3A-Siov and dBC-Slov. 183912' 00?2.1C-  aOmm -JUo. ^ u021"u**lVfcSC / MOBIL OIL CORPORATION Noise Survey Lata Sheet Plant: Mobil Chemical Company, Petro chemical Division Area or Unit: Ethylene Unit Late: 13 October 1975 Study 3y: 3. L. Vitske Operating Conditions: Normal Instrument: General Radio 15o5-3 1 j Time | Location of Microphone i 1 AREA #8, COLD TRAIN Weighting1* Netyork A1C Remarks j 13:50 i i 13:52 J 13:53 | 13:5b j 13:56 i i1 j 13:59 ( lb: 00 j lit: 01 lb; 02 lb: 03 lb :0b lb: 05 lb:0o lb:08 lb: 09 lb: 10 lb: 12 lb:13 lb:15 lb: 16 lb: 17 lb: 18 lb: 19 lb: 20 lb: 21 lb: 23 lb:25 lb:26 lb: 50 Control panel for gas expander G-2357 Expander valve Pump G-2302-A Control valve TRC 5289 Exchanger 2301 103. 91 102 95 103 111 91 102 95 AREA Pump G-2b28 East end of exchanger 321 Pump GbOl Pump G-2303-A 3etveen turbines Ho & 117 Area #b operator's shed Drum boi Pump motor G-302 L. P. condensate drum Pump G-2301-A Pump G-2306-A West side of drum F-o01 Between drums ?-808 & F-30b Between drums F-70b and 703 Control valve PRC-306, west side under compressor deck 1st 6tage suction, compressor G-651 3rd stage suction', compressor. G-651 Compressor b51-A Compressor b51-3 Compressor b51-C Between F-6ob & ?-605 West side of F-603 Inside analytical shed Air compressor station 90 92 95 96 99'' 93 92 97 98 93 9b 93 98 102 107 lib . Ill 108 106 10b 105 103 86 97 90 92 95 96 99 93 92 97 98 93 9b 93 98 102 107 lib 111 108 ' 106 10b 105 103 86 97 1 . Windows open Pumps Under structure Under structure Under structure Under structure Under structure Doors open l1 !I ij i i 1 1 1 1i( i i i j i j 1 l * Sound Level Meters response at dSA-Slov and dBC-Sl783913 002247 MOBIL OIL CORPORATION Noise Survev Data r.eet Plant: Mobil Chemical Company, Petro chemical Division Area or Unit: Ethylene Unit Operating Conditions: Normal Date: 14 October 1975 Study 3y: 3* L. Witzke Instrument: General Radio 15o5-3 1 j Time | \i j-- Location of Microphone ii AREA tf1 4 #6 I Weiglrcing* Net:/ork : A' C ; 9:10 j Areas #1 operator's shed 91 91 ! 9:11 ! 3etween furnaces A 4 3 110 no , 9:13 } Peed piping to furnace 3 102' 102 ; 9:l-i J 3etween furnace C 4 D 106 107 s 9:15 Furnace C stack, ground level L02 j 9:17 Furnace G stack, ground level 108 j 9:13 3etveen furnace F 4 G no 102 108 no : 9:19 Between furnaces X 4 L 108 108 1 9:21 Between furances R 4 S- 107 107 I 9:23 Area #6, operator's station 85 85 ! 9:27 Between furnace 3-102 C 4 D 105 105 9:28 3etween tumps G-4G4 4 turbine 118 96 96 ! 9:29 West side of drum D-403 94.: 94 9:30 Pump G-805 99 99 ! 9:31 North side of drum F-2C9 99 100 9:32 Pump 106-3 96 99 9:33 Gas oil filters, west bank 94 96 9:3** West end of exchanger 107-C2 97 . 97 9:35 Pump G-4l4 95- 98 9:37 West end of exchanger E-107- A2 91* . 95 9:39 West side of,tower D-101 88 93 9:^2 Quench boiler deck, furnace B-101-A 104 104 9; 44 Furnace B-101-F, quench boiler deck 97 97 AREA #2 11:11 11:13 11:14 11:15 Drum F-2491 Rerun tower reboiler Between heater 3-401 4 B-201 Between drum D-409-3 4 D-303-A .85 87 104 104 96 96 90 91 Remarks 1 i i Inside, window open! ,i I D not in operation | j i s i ( 1I11 i i .1 1 i1 ! Steam discharge * 1 * Sound Level Meters response at dBA-Slov and dSC-Slov. 183914 002248 MOBIL OIL CORPORATION Noise Survey Data Sheet Plant: Mobil Chemical Company, Petro chemical Division Area or Unit: Zthylene unit Date: 14 October 1975 Study By: R *vitzxe Operating Conditions: Normal Instrument: General Radio 565-3 1 rr>4 _ Location of Microphone 11 i 11:17 West of drum D-450-3 i 11:18 Carbon disulfide tank | 11:19 Drum F-2204 ! 11:20 Zasu side of drum P-208 11:20 Vest side of pump 2407 1-1:21 West side of pump 102 i 11:22 Zast side of tover D-4o6 11:23 Past end of exchanger 415-3 11:24 West side of tover D-405-A 11:25 Zast end of exchanger 2415 11:26 Pump G-419 11:27 Pump G-2427-A AR2A #7 11:35 11:36 *W( 11:38 11:39 11:U0 11: i*l 11:42 11:43 11:4U Aisle N, drum P-8c6 South side tover D-202 South side tover 201 South end of exchanger 208 or Pump G-2424-3 North side of tover 404 Aisle betveen G-405-3, pump 421 Drum 601 South side of exchanger 201 Aisle east of drum P-202 Betveen lube oil pumps G-251 4 G-351/751 13:45 Under compressor structure sour oil drain Weighting* Netyork AiC l 1 89 87 89 92 Q4 I 94 ! 93 95 90 96 95 96 89 89 91 . 92 95 94 93 .95 91 96 95 96 ....... Remarks 93., 90 90 93 92 92 90 93 90 93 94 96 96 96 95 96 94. 95 102 102 106 106 Under compressor structure l 1 I (1 f (! j 1 1 1 {i ii1 i J j i 1 AREA #3 13:48 Gear box for compressor G-251 111 111 13:45 Gear box for compressor / G-351/751 13:50 Compressor head G/351-751 103 1Q3 106 106 1 * Sound Level Meters response at dBA-Slov and dBC-Slov. 181915 002249 M03IL OIL CORPORATION Noise Survey Tata Sheet Plant: Mobil Chemical Company, Petrochemical- Division Area or Unit: Ethylene Unit Date: 1** October 1975 Study 3y: H. 1. Vitzke Operating Conditions: Normal Instrument: General Radio 15o5-3 \ * Sound Level Meters response at d3A-Slov and dBC-Slov. 183916 002250 MOBIL OIL CORPORATION Noise Survey lata Sheet Plant:: Mobil Chemical Company, Petro chemical Division Area or Unit: 3enzene Unit Date: 17 October 1975 Study 3y: S. L. Witzke Operating Conditions: Normal Instrument: General Radio 15o5-3 1 | Time j Location of Microphone i i I 11:15 1|1 11:lo i 11:17 ! 11:18 ; Center of control room North 3ide of control room Betveen Q. C. Lab and trans- formers South end of pump aisle Betveen motor 432 and turbine G-2 Weighting* Network A1C So 62 69 90 90- 91 90 91 90 91 Remarks 11:19 11:20 11:21 11:23 11:21* 11:25 11:26 11:28 11:30 11:31 11:31 11:33 11:35 11:36 11:37 11:38 11: 1*0 11:41 11:1*3 11:45 West end betveen exchangers 344 Control valves vest and 90 betveen Tovers D-102 4 D-105 91 Betveen Tover D-1Q1 4 Control valve FRC-114 92 s East end of exchangers 106-A 93' East end of exchanger 117 94 East end of exchanger 122 92 Aisle center, betveen motors 241, 229, 4 228 94 Aisle center, betveen motors 246, 245, 225, and 227 91 Aisle center, betveen turbine 103 4 motor 484 96 Motor 216 102 Center aisle, east of motor 216 95 Center aisle, betveen motors 256 4 434 92 West end of exchanger 308 93 West aisle of tover 305 95 West side of tover 302 39 .. Under benzene heater 89 North side of compressor G-305 96 North side of compressor 305-/ 96 North side of compressor motoi 302 96 Air compressor 91 90 91 94 95 94 94 96 92 97 103 97 93 95 96 90 90 97 93 98 92 , Air intake \ ff 1 Jj 1 i 11 1 (l1 j f * Sound Level Meters response at dBA-Slov and dBC-Slov. 002251 1S1917 M03IL OIL CORPORATION Noise Survey Data Sheet Plant: Mobil Chemical Company , Petrochemical Division Aren or Unit: 3oiier House Date: IT October 1975 Study By: R. 1. Witzke Operating Conditions: Normal Instrument: General Radio 15o5- i Time Location of Microphone Weighting* Neti/ork Remarks AC 10:55 1i Control valves southwest of boiler j' j 10:56 j South side, motor for air : blower for boiler {1 10:53 Turbine for air blower for boiler 1 11:00 North side of air preheater 1 11:02 Boiler I'eed pumps 1 11:03 Control panel, 1st level | U:CU Bottom of deaerator drum. 11:06 Top of deaerator drum 11:10 Inside control room t 93 9k 102 . 107 112 113 95 102 9h 95 9k 95 95 95 ns 118 65 78 .^ j i i ji * ! i j i \ j 1 | ' / \ * Sound Level Meters response at d3A-Slov and dBC-Slov. 002252 183918 002253 T o ta l H y ih r> rr,rb o 'is . 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L. lid'-0``i>j t-tii0-3-? * n . JI " r>j 1 \JEL `CI..I0E.--6- -"! i :,'r,v srnr^-oCiiMiiiS4k.u tsto/s:5 1 c-<l * ,! .APPENDIX I PERSONNEL PROTECTIVE MEASURES TO 3E POLLCl'CD DURING ASBESTOS idIMEVAL CPERATIONS All asbestos containing insulation trust be thoroughly wetted wit; water bctore removal. Wetting can be accomplished by any practical means such as hose lines or water spray from self-contained pails or cans. Wet steam is another possible means of saturation of asbestos if feasible conducted safely. Five minutes of water application for 2S square feet of asbestos surface insulation area should suffice. When - asbestos is being removed, a suitable means 'or containment must be used, to catch chunks of asbestos to prevent dispersion of asbestos fibers.' Employees involved in the removal operation must be equipped with a NTCS.'Iapproved, single-use, disposable respirator; 3-M, Model 8710 respirator meets this standard. Employees also must wear gloves, coveralls, and shoe covers. Gloves, coveralls and shoe covers, wherever possible, should be of the single-use, disposable type Employees must not continue to wear this protective clothing if they leave the job site for another activity and specifically when eating. If noni--<disposable protective clothing is used, the -collection ana ..turc.0 * procedJuurrees outlined in the Federal Register and Mobil Medical Guide No.C3-13C3 must be followed. Asbestos-insulation waste, debris and used disposable clothing must, immediate!j be packed in impervious bags and affixed with cautionary tags. The tag shall state: * CAUTION CONTAINS ASBESTOS FIBERS AVOID CREATING DUST BREATHING ASBESTOS DUST MAY CAUSE SERIOUS BODILY HARM A* 183925 002253 -2- 4. The bagged waste material should be disposed and covered daily in the Refinery landfill. If disposal at the Refinery becomes impractical due to space limitations, a qualified 1 ocai contractor should be used. S. Proper cautionary signs must be displayed at each asbestos removal or demolition site. The signs shall state:' , ' ' ,. ,. . * ASBESTOS DUST HAZARD ' ;` * Avoid Breathing Dust Wear Assigned Protective Equipment Do Hot Remain in Area Unless Your Work Requires It Breathing Asbestos Dust May 3e . Hazardous To Your Health ' A* ' . ; Cautionary signs should be placed at a suitable distance (Suggest a minimum of fifty feet) around the removal site, demolition site, and collection point. Any employee entering these areas not immediately ' involved in the removal of asbestos must wear a minimum of a NIOSH-approved, single-use, disposable respirator, 3-M, >bdel 8710 for protection. 6. It is also recommended that area monitoring be conducted during any 1arge-siccd asbestos removal project to determine the extent 'of pqssible drift of asbestos fibers. 183926 0022S0