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RECEIVED <br /> DEC 19 2013 <br /> December 12, 2013 ENVIRONMENTAL HEALTH <br /> Mr. Daniel O'Brien, Manager-Environmental Services Our Ref: Blue 5 a5ERVICES <br /> State of California Dept. of General Services GHD Job No: 03009-10016-37140 <br /> Real Estate Services Division Your Ref: DGS-RESD Contract No. <br /> 707 3rd Street, 4th Floor MS-509 3152182, Amendment 7 <br /> West Sacramento, CA 95605 Project No.: 129598, Site"L" <br /> Re: Well Destruction Report for Site Closure <br /> Project Site "L.", Blue Star, 4040 Main Street, Stockton, San Joaquin County, CA <br /> CVRWQCB/EAR Case#391140 <br /> Dear Mr. O'Brien: <br /> This report summarizes the results of GHD Inc.'s groundwater monitoring well destruction activities <br /> performed on November 13 and 14, 2013, at the Blue Star site located at 4040 Main Street, Stockton, <br /> California, Figures 1 and 2. <br /> This work was performed in response to a November 5, 2013 letter(Appendix A)from the Central Valley <br /> Regional Water Quality Control Board (CVRWQCB), requesting to destroy five groundwater monitoring <br /> wells in order to eliminate potential vertical pathways for surface contaminants into site groundwater. Site <br /> analytical data has been shown to be complaint with the 2013 State Water Resources Control Boards <br /> Low Threat Closure Policy(SWRCB LTCP) and therefore granted case closure by the CVRWQCB.To <br /> complete the Case closure requirements, the on-and off-site monitoring wells MW-1 through MW-5 were <br /> subsequently destroyed on November 13 and 14, 2013. <br /> WELL DESTRUCTIONS AND WASTE DISPOSAL ACTIVITIES <br /> The following is a summary of the field activities related to the well destruction performed on November <br /> 13 and 14, 2013. <br /> Personnel GHD's Geologist, Dave Vossler, oversaw and documented the well destruction <br /> Present: activities. Others on site included Mr. James Barton with the CVRWQCB, and <br /> Johnny Yoakum of the San Joaquin County Environmental Health Department <br /> (SJCEHD), etc. <br /> Permits: Prior to drilling, GHD obtained required permits from the San Joaquin County <br /> Environmental Health Department Well Destruction Permits#SR0068372 and <br /> SR0068378 dated October 23, 2013(Appendix B). Prior to the well destruction <br /> work, USA North was notified of the drilling activities at the locations marked as <br /> required. <br /> Drilling Company: Woodward Drilling, Rio Vista, California, C-57 License#710079. <br /> GHD Inc. <br /> 3831 N.Freeway Blvd Suite 220 Sacramento CA 95834 USA <br /> T 1 916 372 6606 F 1 916 372 6616 E sacramento@ghd.com W www.ghd.com <br />