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GROUND e`TATER <br /> TECHNOLOGY, INC. <br /> Monitoring Well 5 Drilling Log <br /> Project Texaco/Stockton Tei.aco Refinin ?�iarketin Sketch Ma <br /> Owner__._;.._._-_.__. ._..g _ P <br /> Location 440 Charter_ Way 202/150-4150 _ <br /> Project Number <br /> Date Drilled 5/23/89 Total Depth of Hole 45 ft- Dicmeter 10.5 in SEE SITE PLAN <br /> Surface Elevction Water Level initic! 24.5 ft. 24-hour <br /> Screen: Dla. 4 in• Length 25 ft. -_ S)ot Size .020 in. <br /> Casing: Dia. 4 in. ► ength 20 ft. Type PVC <br /> Drilling Company Sierra Pacific Drilling Method Hollow stem Auger <br /> Driller A. Schonberoer Log by M. Ostendorf Notes: <br /> Geologist / Engineer-K.K. 4imnnis License No. p 9-4-422- <br /> -T 4223 <br /> $ s Description/Soh Classification <br /> g79 (Color, Texture, Structures <br /> 0 1 I I Tan, silt (moist,y sand (mo , noproduct odor) <br /> .o. <br /> 2 Ism I <br /> I. I (grades clayey) <br /> l Tan, silty clay (very stiff, :;foist, no product odor) <br /> 4 <br /> dci <br /> A <br /> 6. 0 15 <br /> 17 <br /> 4 <br /> 8 O o <br /> o CL <br /> 10 ��. o. <br /> .Q D 12 <br /> 14 <br /> 1E <br /> ' 12 0 <br /> a <br /> (moderate product odor from boring) <br /> 14 Tan, clavey silt (very stiff, moist, moderate <br /> •:J1 :o product odor) <br /> CI kil <br /> (white calich3 stringers in sarnple) <br /> 11 <br /> 16 0 13 ML <br /> 19 <br /> 18 <br /> R1 � <br /> Tan-broi-m, sandy clay (very stiff, moist, slight <br /> ;., product odor) <br /> 20- <br /> :, ° 7 <br /> 22 11 <br /> 22 17 <br /> CL <br /> 24 Encountered .mter 5/23/89 (1030 hours) <br /> a/ha Rv. a <br /> Page_Lof? <br />