Document JNZ5kxdENDv19eeqbYnJLqGo2

DOW CHEMICAL U.S.A. JANUARY 11, 1985 LOUISIANA division P. O. BOX ISO PLAQUEMINE. LOUISIANA 707BB-0160 604 389-8000 HUGO ANDRICAIN TONY GRANT SHIFT SUPERVISORS 0. C. DICKERSON BULLETIN BOARD GLYNN SMITH BULLETIN BOARD DANNIE KENNEDY ELAYNE HYATT RICHARD BROWNFIELD DISTR. SERVICES RAILROAD RAILROAD RAILROAD RAILROAD TANK CAR CLEANING/INSPECTION TANK CAR CLEANING/INSPECTION INDUSTRIAL HYGIENE SAFETY SUPERINTENDENT RAILROAD MAINTENANCE FOR YOUR INFORMATION, FOLLOWING ARE PERSONNEL EXPOSURE LEVELS, SHOWN IN PARTS PER MILLION, FROM TANK CAR SAMPLES TAKEN IN 1984 DURING CLEANING OPERATIONS. TLV'S LISTED ARE MAXIMUM ALLOWABLE EXPOSURES. SAMPLES WERE TAKEN WITH PERSONNEL MONITORING PUMPS. J. L. MOREAU, JR. INDUSTRIAL HYGIENE RAILROAD/MARINE lrj 1 AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY D0 (n 108671 CONFIt>ENTlAL METHYLENE CHLORIDE TLV-100 2.33 6.70 TANK CAR CLEANING TIME WEIGHTED AVERAGES - PERSONNEL PERCHLOROETHYLENE TLV-50 1.77 8.08 METHYL CHLORIDE TLV-50 < 0.45 <0.60 ETHYLENE OXIDE TLV-1 <1.52 <1.77 <1.06 <0.98 \ BUTADIENE 'V 1 TLV-50 t <0.49 <0.52 < 0.10 <0.16 AREA SAMPLES ETHYLENE OXIDE TLV-1 0.20 0.21 0.19 0.08 0.18 0.19 0.20 DO A 1 0 8 6 7 2 CO NFIDENTIAL {N DO A 1 0 8 6 7 3 CO NFIDENTIAL METHYLENE CHLORIDE TLV--500* 26.70 96.45 ( 20.38 VINYL CHLORIDE TLV-5 <0.22 < 0.26 < 0.25 < 0.26 < 0.27 < 0.21 <2.71 4.2.49 < 1.28 <1.65 < 1.60 *4 - VOID TANK CAR CLEANING 15 MINUTE EXCURSIONS - PERSONNEL METHYL CHLORIDE TLV-100 <6.10 ETHYLENE OXIDE TLV-NOT ESTAB. * 1 j l *2 - VOID BUTADIENE TLV-200 <11.35 < 11.14 on * VOID - ANALYSIS LIMIT OF DETECTION TOO HIGH -- ? uu A 108674 CONFIDENTIAL Hojse Su/wey ok C6MfiR&$$oR.-PowP AkeA DAikiOAy AFT/Z book tUAS tAJSTarLLerp , Lowe/z AiunekALs before AJoise LevaLa aftsh. &>6k uja^ //jst^llsd , book HJSrTAlLaD /d-S-$*i Survey robbF /o-Z-$9 utitj# f/Zom south 7 mPH a)o\$e ko\$e t aAi /?-ru 1 t n T.L, Moreau try-e. Pit Switch /oo? 3 J300X 1 qs-to/ J tv _-o M-o Switch !oo$- dHLoftwe /?a/U> CAcSSiaJG' -qa-qs' qs-VS '86-$7 14 a /J/Aj -ry> Noise Suxvey- Slock 3o 3u>ncH /oo? HoAaJ BLowi/0 6 Fo/l Aoap CAos$)AJdS q3os/n ujwd UaJU) ? mPH tzmP. S'1/ *o (s <_rj oo t~ o2 i-f Uj <e ac o m SwrrcH , "E/JOW& 1 iocs CHlotfiKte rtoAb QRo SSt/JC- DATE 7-5 7-5 7-5 7-6 7-6 7-6 7-6 7-9 7-9 7-9 7-9 TIME WEATHER 1010A.M. PC 1215P.M. PC 215P.M. PC 930A.M. PC 1115A.M. PC 100P.M. PC - 235P.M. PC 900A.M. CLEAR 1100A.M. CLEAR 100P.M. PC 300P.M. PC HEAT STRESS SURVEY - STOCK WAREHOUSE - BLDG. 4104 WIND-MPH W-5 NW 6-7 NW 10 SE 2 SW 3 SE 6 SW 15 CALM SSE 4 SE 3 SSE 3 RELATIVE HUMIDITY 757. 627. 597. 757. 657. 707. 607. 807. 697. 657. 587. OUTSIDE TEMP. F 99 95 101 88 92 94 96 93 93 96 101 DRY BULB F 89 93 97 88 92 92 94 84 90 92 96 WET BULB F 82 ` *4 82 84 81 82 83 82 79 81 82 83 GLOBE F WBGT F 89 84 101 88 107 91 88 83 97 87 102 89 101 88 86 81 95 85 93 85 104 ' 89 ce h oz T-f Lu c <X M Li_ co o WBGT C' 28.9 31.1 32.8 28.3 30.-6 31.7 31.1 27.2 29.4 29.4 31.7 TOTAL 8 ROOF EXHAUST FANS - 1 OUT ORDER (7 RUNNING DURING SURVEY) 2 DOORS - OPEN 2 SMALL VENTS ON NORTH WALL, EAST END NOT OPEN J. L. MOREAU, JR. INDUSTRIAL HYGIENE RAILROAD/MARINE 7-10-84 DOW CHEMICAL U.S.A. April 12, 1984 LOUISIANA DIVISION P. O. BOX ISO PLAOUEMINE. LOUISIANA 70764-0160 S04 369-8000 Hugo Andricain - Major Manager P. J. Prejean - Railroad Ellis George . - Tank Car Cleaning Charlie Halphen- Industrial Hygiene Dannie Kennedy - Industrial Hygiene Elayne Hyatt - Safety To keep our Beckman 6750 Analyzer at Tank Car Cleaning operating at peak efficiency, with a minimum of maintenance costs, the following is recommended and can be done by our personnel: 1. Inspection of analyzer filters, vacuum pump, sample lines and gas bottles using a daily check list (attached). 2. Re-align and secure all field sample points under Tank Car shed. 3. Number field sample points for easy location. 4. Install filters at all field sample points to minimize problems with water, steam, etc. clogging sample lines. These filters are on hand. The daily inspection check list and location of sample points are attached. Additionally, regular calibration of the analyzer by the Instrument Dept, is necessary, probably on a weekly basis. do not have the expertise to do this. We I am available to instruct personnel or assist as heeded. J. L. Moreau, Jr. Industrial Hygiene Railroad/Marine Irj 7 AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY DO A 108677 CONFIDENTIAL DAILY AREA ANALYZER CHECKLIST DATE NAME 1. INLET AIR FILTER CHECKS (Open bleed valve to blow out water vapor.) COMMENTS Filter #1 _____________ Filter #2 _____________ Filter #3 _____________ ,_ ___________________________________ _ ____________________________________ Filter #4 _____________ ____________________________________ 2. VACUUM PUMP OPERATION/FILTERS (Oil vapor Filter #5 No bleed valve) Filter #6 COMMENTS 3. ROTOMETER OPERATION (Check ball position on all rotometers* If ball is seated, sample line is plugged with water. Refer to chart, locate corresponding field sample point and remove filter. Disconnect sample point tubing at outside of analyzer housing. Connect air line tubing to sample tubing. Open air needle valve and blow back for approximately 5 minutes. Check field sample point to insure that water has been blown out. Close needle valve on air sample line. Replace filter at field sample point. Disconnect air line tubing and store in analyzer housing. Reconnect sample tubing. Check for ball position on rotometer.) COMMENTS ^Rotometer, Sample Point #1 nRotometer, Sample Point Rotometer, Sample Point #3 Rotometer, Sample Point #4 Rotometer, Sample Point #5 Rotometer, Sample Point #6 Rotometer, Sample Point #7 Rotometer, Sample Point #8 Rotometer, Sample Point #9 Rotometer, Sample Point #10 8 DO A 108678 CONFIDENTIAL DAILY AREA ANALYZER CHECKLIST PAGE 2 4. CARRIER GAS AND FUEL GAS BOTTLE PRESSURES (Change bottle if 4000# gauge reads less than 200#.) COMMENTS ' Zero Hydrogen - on stream__ Zero Hydrogen - spare __________ ________________________ Zero Helium Zero Helium - on stream __________ _ - spare ' ' ____ Zero Air Zero Air - on stream - spare __________ ____________________________ NOTE: Filter elements should be changed when excessively oily and wet. Revised: 10/29/84 LGS/lrj 9 DO A 108679 CONFIDENTIAL UCACJc 3- . Mr,6 CATiOAJS: r>i ?iP */ /f\A G,K.. .* _ |. 1. ; : . vVORK ApLX ooo, a " ]^/WALVZ.K ] .6T */d 5 ' ` .. * ; '1 i sriW>MS tf&-//-/2, wu/<a/$- /AjV- C04JAjCtr^> f< 'StfSxS/ddT , ST6A(*\ tr/C /$ ybc Cri-Z *A S7iz*-fn , RAILROAD - TANK CAR CLEANING ACCOMPLISHMENTS - 1984 EMPLOYEE EDUCATION PROGRAM - 100% PARTICIPATION ZERO NON-COMPLIANCES - REFRIGERATED COMPOSITE WATER SAMPLER MONITORS 24 HOUR DISCHARGE. NOISE SURVEY - EFFECTS OF SWITCH ENGINE HORN ON EMPLOYEES BLOCK 30. NOISE ATTENUATION COMPRESSOR AND PUMP AREA - INSTALLED DOOR ON CONCRETE BLOCK ENCLOSURE. HEAT STRESS SURVEY STOCK WAREHOUSE BLDG. 4104. BECKMAN 6750 ANALYZER - SECURED LINES, INSTALLED FILTERS AND NUMBERED ALL FIELD SAMPLE POINTS FOR EASY LOCATION AND PREVENTIVE MAINTENANCE. INSTITUTED PROGRAM OF DAILY INSPECTION OF GAS CYLINDERS, FILTERS AND SAMPLE POINTS. INSTALLED NEW SCRUBBER FOR VENTING ETHYLENE OXIDE AND PROPYLENE OXIDE TANK CARS. SOLVENTS TANK CARS SENT TO BLOCKS FOR DRAINING BEFORE CLEANING. WITH HEELS ARE REJECTED. CARS SELECTIVE PERSONNEL MONITORING DETERMINED BY REVIEW OF PREVIOUS EXPOSURE DATA. 11 DO A 108681 CONFIDENTIAL RAILROAD - TANK CAR CLEANING GOALS - 1985 PROTECTING THE PHYSICAL WELFARE OF EMPLOYEES BY REDUCING CHEMICAL AND NOISE EXPOSURES. CONTINUING 100% EMPLOYEE EDUCATION - CONSEQUENCES OF OVEREXPOSURE TO CHEMICALS AND NOISE, SURVEY RESULTS, ETC. SPECIAL AMBIENT AIR AND NOISE SURVEYS AS NEEDED. CONTINUING MONITORING OF PERSONNEL CHEMICAL EXPOSURES WITH EMPHASIS ON SUSPECT CARCINOGENS. OUTFALL COLLECTION PIT - INSTALL WIRE MESH BASKET TO TRAP POLY PELLETS FROM WASH AREA, PREVENTING PELLET DISCHARGE TO OUTFALL AND RETURN CANAL. COMPLETION OF PIPELINE TO CENTRAL WASTE TREATMENT FOR PERMANENT DISCHARGE OF WASH WATER FROM TANK CAR CLEANING. ZERO NON-COMPLIANCES. DO A 108682 CONFIDENTIAL 12