NATURE OF THE CASE: THE F.B. PURNELL SAUSAGE CO., INC. OP ERATES A MEAT PACKINGHOUSE AT U.S. RTE 60, BOX 38, SIMPSON- VILLE, KY.. THE PURNELL MEAT PACKING OPERATION INCLUDES THE SLAUGHTERING & PROCESSING OF HOGS FOR THE PREPARATION OF SAUSAGE & MEAT BYPRODUCTS. INCLUDED IN THE OPERATIONS ARE FRESH, CURED & FROZEN MEATS. IN ADDITION, PURNELLOPERATES A SMALL KITCHEN FOR THE PREPARATION OF PACKAGED SAUSAGE & BIS- CUITS. WASTEWATER FROM PURNELL'S SIMPSONVILLE MEAT PACKAGING OPERATION IS TREATED ON SITE & THEN RELEASED TO A DRAINAGE DITCH FLOWING TO LITTLE BULLSKIN CREEK.