DATE REFERRED IS 08/07/90. ON JULY 31, 1990, EPA REFERRED THIS CIVIL ACTION TO THE U.S. DOJ AGAINST RONALD AND DAN LEITHEISER, AGRIBUSINESSMEN LOCATED IN BRIDGEWATER, SOUTH DAKOTA, FOR FILLING APPROXIMATELY 45 ACRES OF WETLANDS AND DRAINING ANOTHER 320 ACRES, INCLUDING THE HYDE WATERFOWL PRODUCTION AREA, WHICH IS MAINTAINED BY THE U.S. FISH AND WILDLIFE SERVICE..