VIOLATION OF IOWA SIP, WHICH REQUIRES REASONABLE PRE- CAUTIONS TO PREVENT FUGITIVE EMISSIONS FRM GRAIN FACILITIES FROM BECOMING NUISANCE, AND FROM CROSSING PROPERTY LINES. (PILLSBURY IS LESSEE; LESSOR IS NISHNA GRAIN COMPANY.) THERE HAVE BEEN MANY COMPLAINTS FROM NEIGHBORS. DEFENDANT IS IN PROCESS OF CONSTRUCTING ENCLOSURE OVER TRUCK UNLOAD FACILITY; REGION WANTS BAGHOUSE THERE AS WELL, PLUS CONTROLS FOR RAIL LOADING FACILITY. NISHNA GRAIN IS NOT NOW A PARTY, BUT MAY BE BROUGHT IN.