04/22/92: THE OGLALA SIOUX TRIBE ON THE PINE RIDGE RESERVATION LOCATED IN PINE RIDGE, SOUTH DAKOTA OWNS AND OPERATES A WASTEWATER TREATMENT FACILITY LOCATED NEAR THE WHITE CLAY CREEK. THE LIFT STATION FOR THE WWTF, WHICH PUMPS RAW SEWAGE TO THE WASTEWATER TREATMENT CELLS, BYPASSES TO WHITE CLAY CREEK. ON SEVERAL OCCASIONS THE EPA GUIDANCE AND MONETARY AWARDS FOR IMPLEMENTATION OF A FACILITIES PLAN. (FROM NOVEMBER 1989 THROUGH MAY 1, 1991.) ON APRIL 18, 1991 THE EPA RECEIVED A CITIZENS COMPLAINT CONCERNING DISCHARGE OF RAW SEWAGE FROM THE PINE RIDGE LIFT STATION TO WHITE CLAY CREEK.