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I <br /> CLEARWATER <br />' G R O U P <br /> Environmental Services <br />' will be removed from the infusion wells and quarterly monitoring will continue at the site until <br /> q Y g <br />' site closure can be considered As a precaution the tubing for the system should remain in place <br /> until site closure is granted This will allow for additional oxygen infusion if the concentrations <br />' of petroleum hydrocarbons rebound during a quarterly monitoring event <br />' 7.4 Proposed Schedule <br /> Key activities and dates associated with the proposed corrective action are identified below <br /> 1 <br /> Activity Initiation Duration <br />' Complete Remedial Action Plan, Submit to SJC/EHD 4115104 30 days <br /> CVRWQCB Approval of RAP 6115104 60 days <br />' Obtain Cost Pre-Approval from USTCF for Infection Well 7115104 30 days <br /> Installations, iSOC equipment installation, O&M, Quarterly <br /> Sampling including MNA analyses <br /> Infection Well Installations—Work Plan and Field Work $115/04 5 days <br />' iSOC system installation & start-up 9115104 5 days <br />' The schedule presents target dates for completion of key activities related to the preferred <br /> remedial options, contingent upon the timing regulatory approval of the RAP Based on the <br /> schedule, the projected time for the system installation and start-up is within the June or July <br /> I 2004 timeframes However, if Clearwater is required to update the RAP, or requests additional <br /> information or plan modifications, additional time would be needed prior to system installation <br /> and start-up <br /> I <br /> ZB 178C RAP 25 May 18, 2004 <br />