This is an Administrative Order on Consent (AOC) pursuant to a CERCLA Section 122(h) settlement with Shell Oil Company (Shell) and the U.S. General Services Administration (GSA) for past and interim response costs regarding the Remedial Design (RD) of the Waste Pits Operable Unit at the Del Amo Superfund Site. Shell and GSA have been performing RD work at the Waste Pits pursuant to a May 5, 1998 Unilateral Administrative Order (UAO) under CERCLA 104 and 106. The UAO did not provide for the recovery of response costs. Under the terms of the current AOC, Shell and GSA have agreed to fully reimburse all of EPAÂs past and interim Response Costs for the RD. The total Response Costs are $1,208,551.25. Shell will pay $398,821.91 to EPA, and GSA will pay $809,729.34. EPA will enter a covenant not to sue Shell pursuant to CERCLA §107 for costs paid for the RD at the Site. EPA also agrees to grant Shell and GSA contribution protection under CERCLA §113(f)(2) for the costs paid for the RD.