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5.0 Activities Completed to Date <br /> A chronology of activities associated with the USTs at the Stockton Service <br /> Center is as follows <br /> Activity Date <br /> Distnct removes UST, petroleum hydrocarbons detected in soil beneath July 1987 <br /> tank <br /> Kleinfelder conducts soil and groundwater assessment, installs three May 1989 <br /> groundwater monitoring wells <br /> District removes two USTs, Kletnfelder conducts additional assessment September 1989 <br /> ' activities <br /> Weston conducts soil and groundwater assessment, installs i February 1991 <br /> four groundwater monitoring wells <br /> Weston conducts second quarter 1992 groundwater monitoring July 1992 <br /> Weston conducts third quarter 1992 groundwater monitoring October 1992 <br /> Weston conducts first quarter 1993 groundwater monitoring March 1993 <br /> ' Weston conducts second quarter 1993 groundwater monitoring May 1993 <br /> Waste Science conducts additional assessment activities, installs two September 1993 <br /> wells and collects seven HydroPunch Ir groundwater samples <br /> ' Waste Science conducts third quarter 1993 groundwater monitoring September 1993 <br /> Waste Science conducts fourth quarter 1993 groundwater monitoring December 1993 <br /> ' Waste Science conducts first quarter 1994 groundwater monitoring February 1994 <br /> Waste Science conducts second quarter 1994 groundwater monitoring May & June 1994 <br /> ' Waste Science conducts third quarter 1994 groundwater monitoring August 1994 <br /> District submits the Additional Site Assessment and Remedial Options September 1994 <br /> ' Report and Addendum No 1, Remedial Action Plan to SJCPHS and <br /> the Regional Water Quality Control Board <br /> Waste Science conducts fourth quarter 1994 groundwater monitoring November 1994 <br /> 1 <br /> 1 <br /> ' 95R2 Fast Bay Municipat Utility Distinct <br /> 40429500\4thgtr gw 8 Stockton Service Center-Fourth Quarter 1994 <br />