Document mqdzVJVJ98KJ1xv05wJQ2YQwQ

R&S 027673 DOW CHEMICAL U.S.A. JANUARY 11, 1985 LOUISIANA DIVISION P. O. BOX ISO PLAQUEMINE, LOUISIANA 70766-01 BO 604 38S-8OO0 OARD 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 I 1 AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY DOW CHEMICAL U.S.A. April 12, 1984 LOUISIANA DIVISION P. O, BOX ISO PLAOUEMINE, LOUISIANA 70764-0160 604 389-8000 Major Manager Railroad Tank Car Cleaning Industrial Hygiene Industrial Hygiene 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. fib CO 027674 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 needed. $. Zf. Ton.j/L-. *J. L. Moreau, Jr. Industrial Hygiene Railroad/Marine lrj 7 AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY DOW CHEMICAL U.S.A. JANUARY 11, 1985 LOUISIANA DIVISION p. O. BOX 1BO PLAQUEMINE, LOUISIANA 70705-0160 604 300-8000 DISTR. SERVICES MARINE MARINE MARINE DOCK //I INDUSTRIAL HYGIENE SAFETY SUPERINTENDENT FOR YOUR INFORMATION, ATTACHED ARE PERSONNEL EXPOSURE LEVELS, SHOWN IN PARTS PER MILLION, FROM BARGE LOADING AND SHIP DISCONNECT OPERATIONS IN 1984. SAMPLES WERE TAKEN WITH PERSONNEL MONITORING PUMPS. TLV'S LISTED ARE MAXIMUM ALLOWABLE EXPOSURES. 0 Qyt L. MOREAU, JR. INDUSTRIAL HYGIENE RAILROAD/MARINE lrj - r,,i R&S 027675 1 AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY