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0i <br />DATE EXCAVATED 10/21/02 TEST PIT NO. T-31 <br />=i <br />Z <br />GROUND ELEVATION 854 (MSL) LOGGED BY SEB <br />TEST PIT LOG <br />LL <br />2 <br />E <br />E <br />E <br />O <br />METHOD OF EXCAVATION Trackhoe <br />Santa Fe Road Disposal Sites <br />m <br />E <br />m <br />Riverbank California <br />° <br />0' <br />Z <br />R <br />y <br />LOCATION Santa Fe Road Disposal Sites (Bill Lane IDS) <br />v <br />PROJECT NO. DATE <br />DESCRIPTION <br />104690003 11/02 <br />35 <br />30 25 <br />20 <br />15 <br />10 5 <br />SM <br />Fit i AAiT) RtmNFD REFUSE AND DEBRIS <br />Light gray, dry, silty fine SAND with scattered debris consisting primarily of fused <br />lass fragments. <br />8 <br />...... .__.,_ <br />.... <br />- <br />• ^ <br />71 <br />ND <br />8.0 <br />63 <br />6.2 <br />250 <br />ML <br />FILL AND DEBRIS AND BURNED REFUSE: <br />Gray, dry, silty fine SAND to sandy SILT with approximately 40°/a - 60% debris and 5 <br />burned refuse consisting primarily of broken concrete with rebar, comer of building, <br />w__ <br />barbed wire, bum ash, concrete rubble, hubcap, glass, charred wood, bricks, metal pipe <br />6 <br />red clay tile, metal debris, and concrete steps. Bum ash layer from approximately <br />w <br />2.5-4 feet below surface grade and generally follows surface slope. <br />;o <br />Tire. <br />U <br />NA <br />NA <br />NA <br />NA <br />NA <br />.... <br />.... .. .... <br />....... 0 <br />-12 <br />Crushed 55-gallon drum. <br />SM <br />FII,L AND DEBRIS <br />Light brownish gray, dry, fine silty SAND with debris consisting primarily of concrete, <br />- <br />- <br />-- <br />- <br />-� <br />metal pipe, large pieces of concrete with brick (probably building wall). <br />1 <br />,w <br />•J <br />ND <br />11 <br />19 <br />8.1 <br />77 <br />..-4- <br />--- <br />-- <br />O <br />J <br />------------- <br />- <br />..------"__ <br />-._.._-.._-.- <br />____.._._.._--..-...._. <br />—O. <br />2 <br />- - -- <br />- <br />------ - <br />- <br />- - <br />-- ^ <br />3 <br />Total Depth Excavated = 17 to 30 feet below ground surface. <br />Total Length Excavated = 60 feet. <br />- <br />Groundwater not encountered. <br />._.-.......... <br />.__------- -=--_--.- <br />_ ........_- <br />---------- <br />--------- <br />-------- <br />----U <br />Excavation backfilled on 10/21/02. <br />Trench excavated near the top (western) margin of the waste slope and extended (easte <br />down the waste slope). Buried wastes approximately parallels the slope. <br />