MESSERS PROW AND ROCHESTER TOPSOIL INC. ARE ALLEDGED TO HAVE EXCAVATED FIVE (5) NEW AGRICULTURAL DRAINAGE DITCHES IN WET- LANDS ADJACENT TO EXISTING DITCH #4 WHICH FLOWS INTO WILLOW CREEK. THE LATTER IS A TRIBUTARY OF THE ZUMBRO RIVER AND THE MISSISSIPPI RIVER, ALL NAVIGABLE WATERS OF THE UNITED STATES IN VIOLATION OF AN EXISTING PERMIT. THESE WORKS HAVE DEGRADED APPROXIMATELY 40 ACRES OF FEDERALLY PROTECTED WET- LANDS. ON AUGUST 23, 1999, U.S. EPA ISSUED A FINDINGS OF VIOLATION AND ADMINISTRATIVE COMPLIANCE ORDER REQUIRING DEFENDANTS TO TAKE CORRECTIVE ACTION FOR THE FILLING OF WETLANDS.