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Total depth of borings 21-1/2 ft Diameter of borings 8 in Date drilleds 7/17/91 <br /> Casing diameters N/A Lengths N/A <br /> Slot sixes N/A <br /> Screen diameters N/A Lengths N/A Material types_rjZA <br /> Drilling Company: Wo ne DrOfinq Co Drillers R+ch and Jay <br /> Method Usedit Hollow-stem Auger Field Geologist, R Alden <br /> Signature of Registered Professionals <br /> Registration ill 4313 State, Calf <br /> DEPTH SAMPLE o P,I D. :CO <br /> CS DESCRIPTION WELL <br /> NO m DE <br /> CONST <br /> 0 <br /> Asphalt gravel base <br /> 2 <br /> 4 <br /> S-6 11 P40 ML Silt vith some cloy moderate ,eliowisr Urcwn slightly <br /> damp slight plasticity stiff <br /> 8 <br /> I <br /> 10 _ <br /> S-11 26 0 Silt very stiff <br /> Apmv <br /> 12 <br /> 14 <br /> 16 S-16 18 Pp0 v moderate yellowish brown with white calcite we ns <br /> 18 <br /> 20 - <br /> S-21 18 0 <br /> ppmv <br /> Totai depth = 21 -112 feet <br /> Boring backfilled with cement/bentonite scurry <br /> LOG OF BORING: B-4 PLATE <br /> ARCO Service Station No. 2168 <br /> Aa�Prr6d Gaasrstams ,�� 441 West Charter Way B-7 <br /> PROJECT NO. 31009-1 Stockton, California <br />