Unilateral administrative order (UAO) to Aerojet Corporation requiring them to conduct a $60 million cleanup of rocket fuel-polluted groundwater at the Aerojet General Corporation Superfund Site in Rancho Cordova, Calif. The order was issued September 20, 2011. Additional information is available from the Aerojet General Corporation Superfund site case summary.

• UAO: Remedial Design/Remedial Action for Groundwater at Operable Unit 5 (PDF)(37 pp, 439 K)