PLUTONIUM-BEARING PARTICLES FROM FUEL REPROCESSING 123 



SAMPLING POINTS 

 O SYSTEM I 

 <C> SYSTEM 11 



JB-LINE 156-ft 

 STACK 



6th LEVEL 

 WET CABINET 



HEPA 



MECHANICAL LINE 

 AIR SAMPLE EXHAUST 



FURNACE OFF-GAS 

 VESSEL VENT 



ho 



PROCESS VACUUM 

 SYSTEM 



6th LEVEL 

 ROOM AIR 



',24; 



-^ 



AIR DRYER 

 SYSTEM 



MECHAN 

 CAL LINE 



5th LEVEL 

 WET CABINET 



5th LEVEL 

 ROOM AIR 



SYSTE 



A-LINE 



772-F OFF-GAS 

 SYSTEM 



PROCESS 

 VESSEL VENT 



WARM CANYON 



HOT CANYON 



RECYCLE 

 VESSEL VENT 



SAND FILTER 



re^ 



OLD |_| 



B-LINE 



CENTRAL 

 CANYON AIR 



H 



E 



P 



lAl 



SYSTEM 11 



Fig. 6 Savannah River Nuclear Fuel Reprocessing Facility exhaust systems. 



(sampling pt)int23). and o\ an at the 1 56-t't level of the JB-Lhie stack (sampling 

 pomt 28). In S\stem II samples were taken o\ mechanical line air from just beyond the 

 first HHPA filters located m back o{ the cabinets (sampling point A or 31); o'i the 

 combined air from the mechanical line, air sample exhaust, furnace off-gas vessel vent, 

 process vacuum system, and au-dryer system after the second HEPA filter (sampling 

 pt>int B or lb): of the air leaving the sand filter, which also contained air t>om the 

 support laborator\ i)ff-gas system o\ building 772-F. the fuel dissolving and extraction 

 process vessel vent system, and building 221-F canyons containing the process vessels 

 (sampling point C);and of an from the 50-ft level in the 291-F stack where air from the 



