Document a1bx254bBV1DRVdQMy5m8q70e

UNIT I/VINYL CHLORIDE OC-101 NOTIFICATION OF VINYL CHLORIDE EXPOSURE MONITORING RESULTS. The OSHA vinyl chloride standard, 29 CFR 1910.1017, requires that any employee that has been monitored for exposures to vinyl chloride and found to have been exposed , without regard to the use of respirators, in excess of the permissible exposure limit, be notified in writing of the results of the exposure measurement and the steps being taken to reduce the exposure. This must be done within 10 working days following the monitoring. The following employee was exposed in excess of the Permissible Exposure Limit of 1.0 PPM for vinyl chloride: NAME DATE MONITORED 8-HOUR TWA (PPM) ____________________________ ______________________ The following controls are being implemented to reduce exposures: SIGNATURE OF MONITORED EMPLOYEE: DATE OF NOTIFICATION: PLEASE FORWARD THE COMPLETED FORM TO MELISSA BLUE, INDUSTRIAL HYGIENE SERVICES, B-101 FOR INCLUSION IN THE 75 YEAR FILES. -REDACTED 33 03 W fc. IHS File #003951 Page 4 TABLE 1 8-HOUR TWA PERSONAL EXPOSURES TO VINYL CHLORIDE UNIT 1/VINYL CHLORIDE TANK CAR OFF-LOADING, 00901,1992 JOB CLASS/ JOB CODE MASTER NUMBER Process Technician/ Loading: SAMPLE DATE 02-28-92 02-28-92 OS-21-92 05-21-92 09-10-92 09-10-92 09-10-92 12-18-92 12-18-92 SAMPLE TIME (MIN) 480 480 480 480 480 480 480 480 480 Ave.= VINYL CHLORIDE (PPM)*1-2 TUBE BADGE ND (<0.26) 1.7 ND (<0.13) ND (<0.13) 1.1 020 -- ND (<0.44) 0.96 0.62 0.28 >1.33 -- ND (<0.03) >0,643 ND (<0.23) ND (<0.06) ND (<0.40) >0.513* OSHA PEL (8-Hour TWA): "" 1 1 NO non-detectable; detection limit is in parentheses2 protection was used during tank car hook-up and tank car sampling.. Based on data in a previous report (IHS File *OC-3652), respirator use during the analysis of samples was discontinued after second quarter, 1992. to'tfteatmo* phe*00 was flrea*8r i'an S0% of the front section; therefore, a significant amount of vinyl chloride may have been lost IMS File #00-3951 Page 5 TABLE 2 PROCESS TECHNICIAN SHORT-TERM PERSONAL EXPOSURES TO VINYL CHLORIDE UNIT 1/VINYL CHLORIDE TANK CAR OFF-LOADING, 00901,1992 JOB TASK T/C Hook-up T/C Sampling T/C Sample Analysis MASTER NUMBER ! i T/C Disconnect SAMPLE DATE 02-28-92 02-28-92 05-21-92 09-10-92 12-18-92 05-21-92 09-10-92 12-18-92 SAMPLE TIME (MIN) 20 15 5 5 7 22 25 15 VINYL CHLORIDE (PPM)1* TUBE BADGE ND (<1.5) ND (<1.4) ND (<2.2) ND (<1.9) ND (<2.0) 42 ND (<12) ND (<2.9) >33 -- ND (<0.67) ND (<1.4) ND (<4.3) ND (<0.65) -- ND (<3.8) OSHA PEL (STEP:5 ^ ND = non-detectable; detection limit is in parentheses. Respiratory protection was used during tank car hook-up, sampling and sample analysis. Based on data in a previous report (IHS File #00-3652), respirator use during the analysis of samples was discontinued after second quarter, 1992. AREA Near GC TABLE 3 AREA MONITORING IN THE TANK CAR OFF-LOADING LABORATORY UNIT 1/VINYL CHLORIDE TANK CAR OFF-LOADING, OC-901,1992 SAMPLE DATE 09-10-92 12-18-92 SAMPLE TIME (MIN) 480 480 -- VINYL CHLORIDE (PPM)1 ND (<0.06) ND (<0.53) OSHA PEL (8-Hour TWA): 1 NO = non-detectable; detection limit is in parentheses. 1 REDACTED JJ Bo cn Co Building OC-101, Phone 5034 Dow U.S.A. The Dow Chemical Company 2301 N. Brazosport Blvd. Freeport, Texas 77541*3257 May 3, 1993 Melissa Blue, B-101 Industrial Hygiene Services xc: Chris Higganbotham, OC-101 Jerry Saddler, OC-101 Larry Samson, OC-101 Sam Smolik, OC-101 IH CHEMICAL EXPOSURE REPORT #OC-3951 RECOMMENDATIONS FOLLOW-UP 1. Personal exposure sampling at the off-loading facility has been done for the first quarter 1993 and will be repeated quarterly until eight-hour timeweighted average exposures to vinyl chloride are below the 0.5 ppm action level. 2. The use of respiratory protective equipment will continue during tank car hook-up and sampling until industrial hygiene sampling results indicate otherwise. 3. Individual affected employees have been notified with appropriate documentation using IHS exposure notification form. All unit personnel will be informed during May's safety and communication meeting. 4. Feasible engineering controls will continue to be explored to further reduce vinyl chloride exposures at the off-loading facility. Regards R&S154114 Willie Myles Unit IH Coordinator IMPLEMENTATION PLAN FOR INDUSTRIAL HYGIENE RECOMMENDATIONS AREA: IHS FILE #: REPORT TITLE: UNIT l/VINYL CHLORIDE, OC-101 QG8666- OC - % $ f SUMMARY OF 1992 QUARTERLY MONITORING DURING VINYL CHLORIDE TANK CAR OFF-LOADING ACTIVITIES AT UNIT 1/VINYL CHLORIDE, TEXAS OPERATIONS, OC-901 STATUS* C. CC. RECOMMENDATIONS FROM REPORT Until additional controls are implemented and exposures are decreased below the OSHA Action Level of 0.5 ppm, quarterly 8-hour TWA monitoring must continue to be conducted. Short-term exposures during tank car hook-up, sampling and sample analysis should also continue to be evaluated. At a minimum, full-face air-purifying respirators with cartridges approved for vinyl chloride should continue to be used during tank car hook-up and sampling. Employees with exposures that exceeded the acceptable limits were notified individually. All personnel of Unit 1/Vinyl Chloride should be informed of the results of this survey. Engineering controls should continue to be investigated to reduce exposure to levels below the OSHA Action Level. * C: COMPLETED, or L: LONG TERM IMPLEMENTATION (PROVIDE FURTHER INFORMATION ON STATUS OF THE RECOMMENDATION) PLANT REPRESENTATIVE DATE .5'-- -- 93 COMPLETE FORM AND RETURN TO MELISSA BLUE. B-101 CONFIDENTIAL 33 C/3 Oi --4. Oi CONFIDENTIAL UNIT INDUSTRIAL HYGIENE MEETING MINUTES MAY/4/93 Attendants: Meeting Purpose: To discuss and brainstorm ways of reducing VCM exposures at the off-loading facility. started the meeting off by reviewing past hygiene sampling results to bring everyone update on the situation at the off-loading area. This was followed by a group discussion. The following action items precipitated from the meeting. Action Items 1. Verify all loading techs purge hoses for 6 minutes. Chris 2. Check into greasing swivel joints on periodic basis. - Chris - 3. Evaluate vacuum system to clear loading hoses. - Chris 4. Decrease feedback time for IH exposure monitoring -Goal: 3 day turnaround. Willie and Melissa 5. Investigate each exposure over action limit. Gene, Willie, Chris, Sam 6. Train/inform loading techs to note any possible event that might have contributed to exposure during sampling period. Willie 7. Monitor loading techs monthly to get quick update. -- Willie & Melissa 8. Check/observe tank car sample station and sampling procedure to ensure adequate clearing. Chris 9. Determine why lower detection limit is changing. (1992 data ranged from 0.13 to 0.44) - Melissa and Willie 10. Determine while tank car hoses are not de-pressured to STP vs. 15 PSI before breaking into. Chris NEXT UPDATE MEETING IS SCHEDULED FOR EARLY JULY 1993. MEETING TIME AND PLACE TO FOLLOW. May 13, 1993 REDACTED R&si54ii6