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r <br /> KLEINFELDER <br /> October 26, 587 <br /> File: 24-2058-3 <br /> Mr. Timothy Crandall, Project Engineer <br /> California Regional Water Quality Control. Board <br /> Central Valley Region <br /> �- 3443 Routier Road <br /> Sacramento, CA 95827-3098 <br /> Srg_TECT: Soil Transporation and Aeration <br /> At&T Microwave Station Lodi, California <br /> Dear Mr. Crandall: . <br /> I am writing in reference to your letter of October 6, 1987 and our <br /> October 19, 1987 telephone conversation concerning the disposal c£ <br /> petroleum contamioXi�atelyz325from the AT&T yards of contaminatedwave soil hastion beenln Lodi, <br /> removed <br /> California. App <br /> from the site and transported to Forward Landfill m Stockton, <br /> Calif ornia• This .represents the soil. With a They75ptorl00 yardsrofasoil <br /> (TPH) concentration well below 1,Ooo mg/kg. {300 mg/kg rdm Of <br /> at <br /> with a previously reported TPH concentration above 1, <br /> the AT&T facility. <br /> On October 14, 1987, after 325 cubic yards of soil was transported to the <br /> landfill, the soil remaining on the site was transferred and contained in <br /> new plastic sheeting to prevent uncontrolled aeration or contact with the <br /> -ground surface. As a result of this procedure, mixing of the contaminated <br /> soil occurred. ' <br /> On October 16, 1987, five brass tube soil samples were collected from the <br /> pile of remaining soil. A plan view showing the sample locations has been <br /> tubes were collected <br /> provided in Attachment A. All of the brass <br /> above the ground surface by digging about 6 to 12 <br /> approximately 3 feet <br /> inches into the side of the soil pile. <br /> -- <br /> The soil samples were then transported under California, whereothey were <br /> Analytical Laboratorie` lnc-,ain S analyzed mentforTPH by GC—FID. <br /> composited into one sample <br /> and S.p. <br /> e.i KLEINFELDER 9745 flusines� Pari Drivc,Suite C,Sacs,mento,CA 95f327 i9 s6) 3UG-1701 <br />