GM, E, J & E RAILROAD, NORTH SHORE GAS, LARSEN MARINE SERVICE (SITE ACCESS ONLY), AND OMC ARE SIGNATORIES ON AOC. EFFORTS TO NEGOTIATE AN RD/RA CONSENT DECREE WERE TERMINATED IN FEBRUARY 2001 WHEN THE PRP GROUP COULD NOT AGREE TO TERMS (THEY WERE IN ALTERNATIVE DISPUTE RESOLUTION TO DETERMINE RELATIVE LIABILITY ISSUES).