SITE INFORMATION AND CORRESPONDENCE

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f`+ Chronology for Continental Grain October 2 1805 Harbor, Stockton October 7, 2009. 0415-7104 Nine hydropunch borings HA1 — HA9 and monitoring well MW7 were completed during this time. 05/21/04 The date of the Report on Soil and Ground Water Investigation prepared by Haley & Aldrich for the work conducted in April 2004. 10/05/04 The date of the.Corrective Action Plan prepared by Geomatrix. 03/16/05 The date EHD received the CAP Addendum prepared by Huff & Huff Consultants dated March 2005. 05/10/05 The date of the.EHD letter commenting on the CAP Addendum that excavation of. the contaminated soil should extend deeper to 25 feet. 06/20/05 The date of the Soil Remediation Work Plan-Former UST.Area prepared by AGE Consultants. _ 0710710.5 _ The,date of the EH© letter approving of excavation.of the contaminated soil. 08/16/05 On this date MW 2 was destroyed because it was located in the area to be excavated. 0915-29105 During this time the CAP was implemented and approximately 1200 cubic yards of soil was excavated to a depth of 25'feet. 11/09/05 On this date monitoring well MW2R was installed to replace MW2. I` 02/02/06 Date of the Quarterly report that discusses the installation of MW2R in November 2005. II 08/29/06 The date of Corrective Action Report that discusses the August, September and I November 2005 work. II 10/10/07 The date of the EHD letter requiring additional investigation. 1 . 02119-22108 A CPT boring to 85 feet, monitoring wells MW.10 --MW12 and four soil vapor points were completed during this time. 04/22/08 The date of Additional Site Assessment report that discusses the February 2008 work. i 06/15/09 The date of the Closure Summary Report prepared by AGE. 09/16/09 On this date EHD discussed site closure with the Central Valley Regional Water Quality Control Board. is