Document 2jXL7dRq500vZ50v8wbjExEqL

PLAINTIFF'S i EXHIBIT | JMMC-358 G. E. Delong cc C. G. Stelchek w Baell March 21, 1962 DUST STATION NG. ik - RADIAL DRILL PUS 8-10 The above station was sampled and counted on 3/20/62. The count was very high - 8.9 MPPCF. The threshold limit is 5.0 MPPCF. We should review this situation as to corrective measures needed to reduce the dust count to 5*0 MPPCF or lower. P7I4S- M. S. Burton I