THIS IS A COST RECOVERY FOR MONIES EXPENDED FOR PRELIMINARY ASSESSMENTS/SITE INVESTIGATION WORK, OVERSIGHT OF A PRP LEAD RI/FS, AND COSTS RELATE PREPARATION OF AN ENGINEERING EVALUATION/COST ANALYSIS. THIS IS SOLELY FOR RECOVERY OF PAST COSTS, BUT DOES SEEK DECLARATORY RELIEF AS TO THE LIABILITY PRP'S. THE SITE IS NOT ON THE NPL AT THE REQUEST OF THE STATE. RESPONSE ACTIONS CONTINUE UNDER A STATE LEAD CONSENT DECREE. THE WILLOW RUN CREEK/WILLOW RUN SLUDGE LAGOON SITE IS THE LOCATION OF AUTOMOBILE MANUFACTURING PLANTS, A WASTE WATER TREATMENT PLANT, AND AN AIRPORT. ONE OF THE PLANTS AND THE AIRPORT WERE USED FOR THE PRODUCTION OF WARPLANES DURING WORLD WAR II. IT IS LOCATED IN WAYNE AND WASHTENAW COUNTIES, MICHIGAN AND IN THE SOUTHEAST MICHIGAN GEOGRAPHIC INITIATIVE AREA. MUCH OF THE SITE CONTAMINATION INVOLVES SEDIMENT CONTAMINATION. THE SITE WAS ORIGINALLY INVESTIGATED DURING THE LATE 1970S FOR CONTAMINATION, PARTICULARLY POLYCHLORINATED BIPHENOLS, WHICH RESULTED FROM THE INDUSTRIAL ACTIVITIES TAKING PLACE IN THE AREA. A PORTION OF THE SITE, THE WILLOW RUN SLUDGE LAGOON, ORIGINALLY WAS PROPOSED FOR THE NATIONAL PRIORITIES LIST (NPL) IN 1987. UNDER AN ADMINISTRATIVE CONSENT ORDER, TWO POTENTIALLY RESPONSIBLE PARTIES (PRPS), FORD MOTOR COMPANY AND GENERAL MOTORS CORPORATION, CONDUCTED A REMEDIAL INVESTIGATION/FEASIBILITY STUDY (RI/