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SOIL INVESTIGATION WORK PLAN <br /> Crop Production Services Branch No. 0514 <br /> 1905 N. Broadway Avenue <br /> Stockton, California <br /> Drilling operations summary: <br /> 02,05 4 • 16 CPT borings to a maximum of 150'for the purpose of defining subsurface geology& <br /> hydrogeology.Work to be performed by Gregg Drilling. <br /> CPT borings to be grouted upon completion of each hole. <br /> 1 8"hollow-stem auger boring advanced to a maximum of 50'with a limited access, <br /> track mounted rig which will be craned into place within an existing tank farm in the <br /> vicinity of L4(see attached map). Purpose is to obtain soil samples to be analyzed for <br /> C )y fumigants(EDB, DBCP), nitrate as nitrogen, and ammonia, VOCs, and low-level 1,2,3- <br /> pwre_� TCP and log subsurface soil types. <br /> 38 8" hollow-stem auger borings advanced to a maximum of 50'. Purpose is to obtain <br /> soil samples to be analyzed for fumigants(EDB, DBCP), nitrate as nitrogen, and <br /> ammonia,VOCs, and low-level 1,2,3-TCP and log subsurface soil types. <br /> `. All hollow-stem auger borings to be tremmie-grouted to surface with cement slurry by <br /> \\ end of drilling day. <br /> Proposed drilling schedule: <br /> • CPT boring from March 8"to March 14'" <br /> • Limited access rig on March 15" <br /> 38 auger borings from March 16`"to approximately March 301" <br /> Proposed boring locations depicted on attached Figure. <br />