.,, c. T~~ bulk haul operation has been monitored during all phases as follows: 1. Initial soil removal 2. Loading on both the KM-8 3. Transport to Runit 4. Removal and transport to the shaker operation 5. Operation of the batch plant 6. Final c~ater deposition and LCU .. . We have been impressed with the smoothness of the operation and with botlhthe engimering.and entire procedure. radiation pro$~ction aspects of the The bllI.k haul o~eration is well administered and we have observed no problens with it. However, we recommend that tilesoil be cover=d ~’~~ingtransport and that personnel not be required to wsar positi*.%pressure half face or fuI.1face respiratory protection except d~ring loading and unloading operations or when .. an air saiigleis note.5to be positive. If the air sample count is positive, or a haz=wd is perceived to exist by the FRST member present, then ev~ry~ne s>cmld acquire respiratory protection immediately. our recommnd~tio~ not to require respiratory protection during the actual hauling operation is based on analyses of 89 air samples collected between 26 ;flarch and 28 July 1978. The.results of these analyses allow us to conclude that there has not been a radiological inhalation hazard due to 239Pu during this period. T-he average air concentration determined from these samples is 6.9 x 10-15 Ci/cc, P whereas the maximum permissible concentration (l-LPC) Eor insoluble 15