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Mw Mm <br /> Table 4 <br /> Summary Test Pit Information and Findings <br /> Debris Areas <br /> Stockton 99 Speedway <br /> 4105 N.Wilson Way <br /> Stockton,CA <br /> Test Pit Number Approximate Total Excavation Debris Noted Estimated Percent Sample Type and(Depth) Comments <br /> Location(Debris Depth in Feet Debris as Applicable <br /> Area) <br /> Concrete,wood,asphalt,aggregate rock, Some dark soil discoloration with organi <br /> TPI 12 20 4-Point Stockpile Composit type odor.Large pieces of concrete and <br /> tire.Trace wire,plastic,brick, burnt wood wood <br /> Southeast Portion ofkP� <br /> As TPI,less wood.No tire.Trace debris: 4-Point Stockpile Composite As above.Free water noted seeping frorr <br /> TP2 Debris Area 15 small rubber hose,cyclone fence part,glas and discrete Sample at 15' <br /> 10 to 15 aggregate rock from sidewall at depth o <br /> bottle,tile,burnt wood approximately 13 feet <br /> Similar to Tl debris. Trace debris: 1-1/2" As TP 1.Free water noted seeping from <br /> TP3 9 galvanized pipe,colored conrete,remanan 10 None aggregate rock from sidewall at depth o <br /> clay piping approximately 6 feet <br /> TP4 North Central 14 Large concrete slabs,abundant brick,and 10 None Dark soil discoloration noted at 6 foot <br /> less asphalt,some wood and burned wood depth,Concrete at 14 feet. <br /> TP5 Western Central 10 Some concrete and asphalt 5 None Light brown clayey sand noted at 6 feet. <br /> No fill at 6 feet. <br /> Concrete,asphalt,aggregate rock. Trace 4-Point Stockpile Composite <br /> TP6 10 debris: 1"conduit,burnt wood,brick 10 to 15 with TP 8 None <br /> Southwest Central styrofoam and plastic. <br /> TP7 Concrete. Trace brick and wood 10 4-Point Stockpile Compositt Slight petroleum odor from stockpiles <br /> 15 material in localized spot <br /> Light brown sand,cinder blocks,plywood. 4-Point Stockpile Composite <br /> TP8 Southwest Border Trace debris:rebar metal,sheet metal,floo 10 to 15 with TP 6 Slight organic odor • <br /> 14 pan <br /> Tp9 7 Concrete,some asphalt 5 None No obvious soil discoloration or odor <br /> TP10 Southeast by DW 6 Concrete,asphalt and wood 8 None No obvious soil discoloration or odor <br /> TPI 1 Eastern Border 1 NA NA NA NA <br /> Concrete,wood,asphalt. Trace debris: F <br /> TP 12 North Central diameter culvert by F long,plastic, 10 4-Point Stockpile Composit None <br /> 15 masonry,wire,burnt wood <br /> 58671.EO1IST05R7127 Page T-0 <br /> September 15,2005 <br /> Copyright 2005,Kleinfelder,Inc. <br /> k`! KLEINFELDER <br />