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UST Closure Report <br /> ABF Freight System,Inc. <br /> Manteca,California Page 7 <br /> • mg/L milligrams per Liter <br /> µg/L micrograms per Liter <br /> 6.0 MATERIALS HANDLING AND DISPOSAL <br /> 6.1 Diesel Fuel <br /> Approximately 500 Gallons of diesel fuel was pumped from the UST by American Valley <br /> Environmental Services, Inc. of Turlock, California and transported to Americlean, Inc. in Silver <br /> Springs, Nevada. No manifests or profiling were required. <br /> 6.2 Underground Storage Tank <br /> The one 10,000-gallon UST was transported by ECI of Richmond, California, from the ABF <br /> Freight, Inc. facility to Erickson, Inc. in Richmond, California. The UST was cleaned and then <br /> cut up for recycling as scrap steel. A copy of the tank manifest and the Certificate of Disposal are <br /> included in Appendix 5. <br /> 6.3 Soil <br /> • Mr. Trucker of Stockton, California transported 136.57 tons of contaminated soil from the ABF <br /> Freight, Inc. facility to Forward, Incorporated, a Class II certified landfill in Manteca, California. <br /> Copies of the manifests are included in Appendix 6. <br /> 6.4 Groundwater <br /> American Valley Environmental Services, Inc. purged 375 gallons of contaminated groundwater <br /> from the excavation after the removal of the UST. The groundwater was transported to <br /> Americlean, Inc. for disposal. No manifests or profiling were required. <br /> 7.0 SITE RESTORATION <br /> On March 23 and 24, 1998, the excavation was backfilled. Mr. Trucker delivered 142.71 tons of <br /> pea gravel and 43.26 tons of sand from Teichert Aggregates, of Tracy, California. The <br /> excavation was backfilled with pea gravel up to four feet below ground surface. A total of 41.38 <br /> tons of 3/4-inch aggregate base from Teichert Aggregates was then placed and compacted in one- <br /> foot lifts up to ground surface. <br /> On May 7, 1998, a concrete slab was built over the former UST site with # 4 re-bar placed in <br /> one-foot centers. A & A Concrete Supply, Inc. of Sacramento, California delivered 18 cubic <br /> yards of 3,000 psi concrete to the site. <br /> • <br /> \\SERVERI\C-DRIVE\PROJECTS\3272\Plans and Reports\UST Closure Report.doc <br /> May 21, 1999 <br />