Document 18XXpGegdw4jX266DB1BE2jo

Interoffice Communication To A. H. Sather From J. V. Uptain-""^ Date June 21, 1978 Subject VCM DOSIMETRY PLAN CHANGES Attached axe my recommendations for reducing plant VCM dosimetry (See Table II). These recommendations are based on: 1. The results of all dosimetry (361 samples) from 3/1/78 through 5/31/78. All samples were taken using the REAL "Minimonitor" and represent conditions with both reactor modules in operation. 2. A purely subjective assessment of relative exposure risks, irrespective of sampling results, ampling by 28%, A jf Attachments c: GGD, DWF, JAF, DSC, Department Heads VAB.0001053590 TABLE I SUMMARY OF VCM DOSIMETRY RESULTS MARCH 1, 1978 - MAY 31, 1978 Workforce Group No. Samples I. Annual Schedule .1 Compound Supervisors 2. 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 III. Monthly Schedule 1. Maint. Bldg. Attendents 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 4 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.0001053591 ri TABLE II REVISED SAMPLING PLAN VCM DOSIMETRY A. MONTHLY SAMPLES 1. Operations Superintendent 2. Vinyl Operations Engineer 3. Vinyl Operations Supervisor 4. Vinyl Shift Supervisors 5. Reactor Lead Operators 6. Reactor Operators 7. Dryer Lead Operators 8. Dryer Operators 9. Dryer Utilities 10. Yard Supervisor 11. Yard Operators 12. Mechanical Superintendent 13. Maintenance Planner 14. Maintenance Superintendent (Mech.) 15. Maintenance Supervisors 16. General Mechanics 17. Maintenance Helpers B. QUARTERLY SAMPLES (One Sample Per Work Group) 1. Mechanical Engineering Department 2. Process Engineering Department 3. Safety Department 4. Maintenance Superintendent (I E) 5. Electricians 6. Instrument Technicians 7. Painter-Insulator-Carpenters 8. Maintenance Utility Technicians C. ANNUAL SAMPLES 1. Compound Operations Engineer 2. Compound Operations Supervisor 3. Compound Shift Supervisors 4. Stores Supervisor 5. Storekeepers 6. "A" MB" Warehouse Workers 7. Receiving Lead 8. Chief Plant Chemist 9. Compound Development Chemist 10. Manufacturing Chemist 11. Quality Control Supervisor 12. Lab Shift Supervisors 13. Lab Lead Technicians 14. Lab Development Technicians 15. Lab "AM $ "B" Technicians 1 1 1 5 4 8 4 8 8 1 5 1 1 1 3 27 3 82 1 1 1 1 1 1 1 1 8 1 1 5 1 1 1 1 1 1 1 1 4 4 1 4 28 wm VAB.0001053592