Document k930xy3waRxB3q2226bj541Gn

% T. G, Grumbles Interoffice Communication From: Date: Subject: J. V. Uptain February 3, 1988 VCM EXPOSURE LEVELS As you requested, a review of the Aberdeen Plant's VCM exposure records was made to determine exposure levels for employees not directly involved with VCM but who may handle or process resins or materials made from VCM. As a result, I am enclosing five tables extracted from as many statistical studies covering the period July 1, 1976, through December 31, 1981. In comparing this older data with the more recent results shown below, please note that of the seventy-three samples taken in Compound ("Compound Supervisors" and "Compound Workers...") during the period July 1, 1976 through December 31, 1976, only two were above the "action level" of 0.5 ppm: Dry Blend Compounder - 0.54 ppm Compound Operator - 0.77 ppm Similarly, for the six samples taken in Compound during the period March 1 , 1977 through August 31, 1977, only one sample was above the action level: Compound Shift Supervisor - 0.82 ppm More recent results are tabulated below for the plant1s current "yearly" dosimetry samples (see attached sampling frequency plan). This sample category includes jobs not normally directly exposed to VCM . Those jobs are: 1. Lead Warehouse Worker 2. Lab Lead Technician 3. Lab Technician 4. Receiving Lead 5. Storekeeper 6. Compound Shift Supervisor 7. Compound Operations Supervisor 8. Compound Operations Superintendent 9. Chief Plant Chemist 10. Development Technician 11. Draftsman 12. Manufacturing Chemist VAB.0001052872 T. G. Grumbles 2/3/88 VCM Exposure Levels A Yearly Sampling Year Total Number Samples Number Samples > PEL (1 ppm) 1983 Jan. - Sept., 1984 Fiscal 1985 Fiscal 1986 Fiscal 1987 20 20 18 15 20 0 0 0 0 0 I hope this provides you with the information you need. If not, please do not hesitate to call me. Jerald V. Uptain Safety Supervisor rah enclosures cc: KLF VAB.0001052873 TABLE I SUMMARY OF VCM PERSONNEL DOSIMETRY RESULTS MARCH 1, 1977 - AUGUST 31, 1977 * Current Sampling A. Frequency Workforce Group No. Samples Mean (PPM,VCM) STD Deviation (PPM,VCM) I. YEARLY 1. Maint. Elect. 2. Maint. Machinists 3. Maint. Painter/Carpenters 4. Maint. General Helpers 5. Laboratory Supervisors 6. Vinyl Dryer Lead Operators 7. Compound Supervisors 8. Compound, Dry Blend Workers 5 0 1 1 2 3 5 1 0.14 - 0.05 0.06 0.18 0.11 0.27 -.13 0.08 - 0.13 0.03 0.32 II. QUARTERLY 1.* Transportation Warehouse Workers ? * Warehouse Workers 3. Maint. Instrument Technicians 4. Maint. Building Attendents 5. Safety Personnel 6. Mechanical Engineers * 7. Storekeepers ft Stores Supervisor 8. Reactor Lead Operators 9. Vinyl Dryer Supervisors 10. Vinyl Dryer Operators Utilities 11. Maint. Utility Technicians 12. Laboratory Technicians 5 2 2 1 3 4 5 5 7 7 2 6 0.09 0.15 0.11 0.03 0.16 0.12 0.26 0.14 0.26 0.36 0.13 0.20 0.07 0.21 0.04 - 0.06 0.09 0.85 0.11 0.16 0.37 0.08 0.14 III. MONTHLY 1. Yard Supervisor 2. Maint. Supervisors 3. Maint. "A" Mechanics 4. Maint. "B" Mechanics 5. Maint. Helpers 6. * Process Engineers 7. Yard Operators 8. Reactor Supervisors 9. Reactor "A" Operators 2 0.52 0.15 12 0.14 0.20 12 0.19 0.22 2 1.09 1.15 1 0.18 - 9 0.09 0.09 11 0.13 0.07 13 0.51 0.93 12 0.22 0.22 2-Sigma Upper Control Limit (PPM,VCM) 0.29 -- 0.44 0.17 0.91 * 0.24 0.56 0.18 0.27 0.29 1.95 0.36 0.57 1.11 0.28 0.47 0.81 0.53 0.62 3.38 - 0.27 0.26 2.38 0.66 VA0P0OO1052874 A TABLE I SUMMARY OF VCM DOSIMETRY RESULTS MARCH 1, 1978 - MAY 31, 1978 Workforce Group No. Samples I. Annual Schedule 1. Compound Supervisors 2 M Dry Blend Operators 3. Compound Operators 4. Trans. Warehouse Workers 6 5 4 3 18 II. Quarterly Schedule 1. Storeroom Supervisor 2. Lab Lead Techs 3. Lab "A" Techs 4. Warehouse Workers 5. Storekeepers 2 4 9 4 3 22 II. Monthly Schedule 1. Maint. Bldg. At t endent s 2 2. Maint. Util. Techs 11 3. Maint. Instr. Techs 13 4. Maint. Painters Machinist 9 5. Maint. Electricians 10 6 * Maint. Supervisors 24 7. Maint. "A" Mechanics 54 8. Maint. MB" Mechanics 8 9. Maint. Helpers 7 10. Yard Operators 13 11. Yard Supervisor k4 12. Vinyl Shift Supervisors 16 13. Vinyl LR Lead Oper. 12 14. Vinyl LR Operators 23 15. Vinyl Dryer Lead Oper. 8 16. Vinyl Dryer Util.,Oper., Helpers 38 17. Process Engineers 15 18. Safety 11 19. Mechanical Engineers 22 20. Plant Mgr, Supt. 6 21. Dev. Lab. Techs. 5 22. Lab Supervisors 10 321 Mean (PPM,VCM) 0.23 0.12 0.10 0.10 0.15 0.10 0.11 0.15 0.10 0.05 0.33 0.12 0.14 0.09 0.77 0.87 0.19 0.09 1.69 0.08 0.17 0.29 1.77 0.49 0.23 0.11 0.16 0.12 0.35 0.17 0.10 Std. Deviation (PPM,VCM) 0.07 0.002 0.00 0.00 0.05 0.00 0.57 0.09 0.00 0.05 0.47 0.08 0.13 0.03 2.90 5.38 0.27 0.04 3.26 0.04 0.12 0.44 3.69 1.55 0.35 0.03 0.14 0.10 0.36 0.12 0.00 2-Sigma Upper Control Unit (PPM,VCM) 0.26 0.04 0.10 0.10 0.25 0.10 0.23 0.32 0.10 0.15 1.28 0.29 0.39 0.15 6.58 11.62 0.73 0.16 8.20 0.16 0.41 1.17 9.14 1.59 0.94 0.18 0.43 0.31 1.06 0.40 0.10 VAB.0001052875 * r A TABLE I ANALYSIS OF 1979 VCM DOSIMETRY _______ . ----------------------------^---- -------- P JOB CLASSIFICATION 1. Vinyl Oper. Superintendent, Supervisor, Relief Supervisor, Operations Engineer 2. Vinyl Shift Supervisor 3. Chief Leads SX 19 .20 20 .30 20 1.40 4. Uinyl Lead Operators 45 .50 5. Vinyl Utilities 6* Yard Supervisor, Operators 12 .23 27 1.63 7. Vinyl Operators 68 .73 8. Maintenance Supervisors 25 .31 9. All Maint. Mechanics, Helpers, Painters, Utility Techs. 10. Process Mechanical Engineers 11. Safety 12. E I Supervisor Workers 13. Compound Superintendent Supervisors 14. Storeroom Supervisor Workers 45 .40 7 .07 3 .03 11 .14 7 .10 7 .03 15. Lab Supervisors Workers 15 .13 0" .21 .21 3.09 1.69 .29 6.18 1.21 .50 .89 .12 .06 .11 .22 .05 .24 K 11 10 10 9 4 7 4 10 14 0 20 4 8 7 19 8 6 S = No. samples. NOTE: In most cases, for last 6 months of year - in others for entire year if needed to increase sample size. X = Average (ppm) sample result, on= Standard deviation (ppm) K = No. of results greater than the "Action Level" CO*5 ppm) but less than or equal to the permissable exposure limit (1*0 ppm) - per 100 s;amnles of the job classification(s). 0 = No. of results greater than 1.0 ppm - per 100 samples of the job classification. VAB.0001052876 TABLE I SUMMARY OF 1981 VCM DOSIMETRY RESULTS* Job Categories No. Samples S X Standard Average Deviation (ppm) (ppm) %> 1 ppm Upper Confidence Limit (x + 2*S) Reactor Operator 87 3.5 17.0 24 General Mechanic 284 3.7 5.6 5 Chief Operator 47 1.5 2.8 26 Vinyl Operations Engineer 9 0.4 0.9 11 Vinyl Shift Supervisor 54 0.4 0.9 9 Lead Operator 92 0.2 0.9 2 Yard Supervisor 8 0.4 0.7 13 Maintenance Helper 37 0.4 0.7 3 Instrument Tech. 6 0.4 0.6 17 Vinyl Operations Supervisor 2 0.6 0.5 0 Dryer Operator 88 0.2 0.4 1 Utility Technician 44 0.2 0.4 0 Painter-Carpenter-Insulator 11 0.3 0. 3 0 4 Maintenance Supervisor 32 0.2 0.2 3 Safety Supervisor 1 0.6 0 0 Yard Operator 49 0.2 0.2 0 Lead Warehouse Worker 2 0.2 0.1 0 Dryer Utility 45 0.2 0.1 0 Lab Technician 12 0.1 0.1 0 Lab Lead Technician 3 0.2 0.1 0 Mechanical Superintendent 10 0.1 0.1 0 Process Engineer 12 0.1 0.1 0 Safety Director 1 0.2 0 0 Receiving Lead 1 0.2 0 0 Maintenance Superintendent(Mech.)11 0.1 0.03 0 Storekeeper 3 0.1 0 0 Contract Supervisor 1 0.1 0 0 Vinyl Operations Supt. 1 0.1 0 0 Lab Supervisor 6 0.1 0 * 0 37.5 15.0 7.2 2. 1 2.1 2.0 1.8 1.7 1.6 1.5 1.0 1.0 0.9 0.6 0.6 0.5 0.5 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0. 1 0. 1 o.l 0.1 A VAB.0001052877 Job Categories TABLE I (Continued) SUMMARY OF 1981 VCM DOSIMETRY RESULTS* No. Samples S x Standard Average Deviation (ppm) (ppm) %> 1 ppm Upper Confidence Limit (x + 2*S) Electrician Compound Operations Supervisor Compound Operations Supt. Plant Chemist Dev. Technician Maint. Supt. (I & E) Plant Supt. Mechanical Engineer Draftsman Plant Manager Compound Shift Supervisor Safety Inspector 3 1 1 1 4 1 1 7 4 1 5 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 0 0.1 0 0.1 0 0. 1 0 0.1 0 0.1 0 0.1 0 0.1 0 0.1 0 0.1 0 0.1 0 0.1 A * Note: All dosimeters measure concentration without regard to the use of respirators. VAB.0001052878 i TABLE VI SUMMARY OF 1980 VCM DOSIMETRY RESULTS A Job Categories No. Samples S x 1Standard Average :Deviation (PPM) (PPM) % 1 PPM Vinyl Operator 131 Mechanical Helper 9 Vinyl Shift Supervisor 54 Vinyl Utility 50 Vinyl Chief Lead 47 Yard Operator 54 Maintenance Supervisor 34 Maintenance Superintendent (I&E) 3 "A" Mechanics 276 "B" Mechanics 19 Yard Supervisor 10 Utility Tech. 28 Vinyl Operations Engineer 11 Vinyl Lead Operator 88 Casual Laborer 8 Process and Mechanical Engineer 2 Laboratory Lead Tech. 5 Painter/Insulator/Carpenter 9 Instrumentmen & Electricians 18 Maintenance Planner 4 Lab "A" Tech. 11 Storekeeper 3 Compound Shift Supervisor 3 Vinyl Operations Supervisor 6 Mechanical Supt. 6 Lab Shift Supervisor 4 Maintenance Supt. (Mech.) 13 Safety Director, Supv., Inspector 5 Vinyl Operations Supt. 2 Compound Operations Supv., Supt.. 2 Receiving Lead Stores Supv. 1 1 Quality Control Supv. 1 2.7 2.3 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0. 1 0.1 0 0 0 0 0 0 0 0 0 0 0 3.6 6.4 1.0 0.9 0.7 1.1 0.7 0.5 2.0 0.4 0.3 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0 0.1 0.1 0.1 0.1 0.1 0.1 0 0 -- -- -- 5 11 4 4 6 6 6 0 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Upper Confidence Limit (x + 2 X S) 9.9 15.1 2.4 2.2 1.8 2.5 1.7 1.3 4.3 1.0 0.8 0.5 0.5 0.5 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0 0 0 0 0 VAB.0001052879 'I t A I. VCM A. Monthly Samples - One monthly sample of each employee exposure In each of the following job groups: 1. Vinyl Shift Supervisor 2. Chief Operator 3. Lead Operator 4. Reactor Operator 5. Dryer Operator 6. Dryer Utility 7. General Helper 8. Yard Operator 9. Yard Supervisor 10. Vinyl Operations Engineer 11. Vinyl Operations Supervisor 12. Vinyl Operations Superintendent 13. Mechanical Superintendent 14. Maintenance Superintendent (Mech.) 15. Maintenance Supervisor (I&E) 16. Maintenance Area Supervisor 17. Utilities Supervisor 18. Maintenance Planner 19. General Mechanic 20. Electrician 21. Instrument Technician 22. Painter-Insulator-Carpenter 23. Utility Technician 24. Maintenance Helper B. Yearly Samples - One yearly sample from each of the following job groups: 1. Lead Warehouse Worker 2. Lab Lead Technician v 3. Lab Technician 4. Receiving Lead 5. Storekeeper 6. Contract Supervisor 7. Safety Director 8. Safety Supervisor 9. Safety Inspector 10. Proces's Engineer 11. Lab Shift Supervisor* 12. Compound Shift Supervisor 13. Compound Operations Supervisor 14. Compound Operations Superintendent 15. Chief Plant Chemist 16. Development Technician 17. Plant Superintendent 18. Mechanical Engineer 19. Draftsman 20. Plant Manager 21. Manufacturing Chemist + jQi itot i VAB.0001052880