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ArC
<br /> ASSOCIATES INC
<br /> 1260 Gra0z Crm,Uoddo, Califon,95351 LOG OF BORING S B 1
<br /> PROJECT THIEMANN PROPERTY LOCATION 106 WEST SECOND STREET, RIPON CA PROJECT NO 62605 OD01
<br /> DATE DRILLED . 11/05/98 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410
<br /> DRILLING COMPANY V&W DRILLING DRILLER ROBERT VICKERY METHOD HOLLOW STEM AUGER CONTINUOUS CORE
<br /> BORE HOLE DIAMETER a IN DEPTH DRILLED 50 FT DEPTH TO WATER INITIAL 25' FT STATIC FT
<br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT
<br /> SCREEN TYPE _NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO _ FT
<br /> FILTER PACK TYPE NA INTERVAL FT TO FT
<br /> SURFACE SEAL TYPE NEAT CEMENT INTERVAL
<br /> 0 FT TO 50 FT
<br /> COMMENTS PAGE I OF___L
<br /> WELL DEPTH PID SAMPLE 10 LITHOLOGIC DESCRIPTION
<br /> DETAIL FT PPA BLOWCOUNT LOG
<br />' 0-2" ASPHALT
<br /> 2
<br />' 4
<br /> 6
<br /> 2 -8 PEA GRAVEL
<br /> 8-11' SILT WITH SAND (ML) 25% FINE, POORLY GRADED SAND, 75% FINES,
<br /> NO PLASTICITY DARK YELLOW BROWN STRONG PRODUCT
<br /> ML ODOR NO ORGANICS DRY-MOIST WEAK CEMENTATION HOMOGENOUS
<br /> 10
<br /> 4537
<br /> 11-12" POORLY GRADED SAND (SP) >95% FINE-MEDIUM POORLY GRADED SAND,
<br />' SP <5% FINES, MODERATE YELLOW BROWN, STRONG PRODUCT ODOR NO
<br /> 12 ORGANICS DRY, WEAK CEMENTATION HOMOGENOUS
<br /> CL 12-13 LEAN CLAY (CL) <3% FINE POORLY GRADED SAND >97% FINES, MEDIUM-
<br /> HIGH DRY STRENGTH, NONE-SLOW DILATANCY, LOW-MEDIUM TOUGHNESS
<br /> Sp MEDIUM PLASTICITY, MODERATE YELLOW BROWN, STRONG PRODUCT ODOR,
<br /> -14- NO ORGANICS DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> TP-561-15 ML 13-14 POORLY GRADED SAND (SP) >90% FINE, POORLY GRADED SAND <10%
<br /> FINES MODERATE YELLOW BROWN STRONG PRODUCT ODOR NO
<br /> 16 SM ORGANICS DRY-MOIST WEAK CEMENTATION, HOMOGENOUS
<br /> 3000 14-15 SILT WITH SAND (ML) 20% FINE, POORLY GRADED SAND, 80% FINES LOW
<br />' DRY STRENGTH, SLOW DILATANCY, LOW TOUGHNESS NONE-LOW PLASTICITY
<br /> MODERATE YELLOW BROWN STRONG PRODUCT ODOR, NO ORGANICS, DRY-
<br /> 18 ML MOIST WEAK CEMENTATION HOMOGENOUS
<br /> 15-16 5' SILTY SAND (SM) <857 FINE, POORLY GRADED SAND, >157 FINES
<br /> MODERATE YELLOW BROWN, STRONG PRODUCT ODOR, NO ORGANICS, DRY-
<br /> 20- 12659 MOIST, WEAK CEMENTATION HOMOGENOUS
<br /> 165-20 SILT WITH SAND (ML) <307 FINE POORLY GRADED SAND, >707 FINES
<br /> SP MODERATE YELLOW BROWN, STRONG PRODUCT ODOR, NO ORGANICS, DRY-
<br /> 22 311 MOIST, WEAK CEMENTATION, HOMOGENOUS
<br />'
<br /> - 20-225 POORLY GRADED SAND (SP) >95% FiNE-MEDIUM, POORLY GRADED SAND,
<br /> <5% FINES PALE YELLOW BROWN STRONG PRODUCT ODOR, NO ORGANICS
<br /> 24 WET, WEAK CEMENTATION, HOMOGENOUS
<br /> 547
<br />' 26
<br /> SW 22 5-325 WELL GRADED SAND (SW) >90% FINE-COARSE, WELL GRADED SAND,
<br /> 28 <10% FINES PALE YELLOW BROWN, WET, STRONG PRODUCT ODOR,
<br />' WEAK-MODERATE CEMENTATION HOMOGENOUS
<br /> 30 TF-SDI-30
<br />' 32 1251
<br /> 32 5-375 POORLY GRADED SAND (SP) >95% FINE-MEDIUM SAND <5% FINES,
<br /> WET, WEAK CEMENTATION HOMOGENOUS
<br />' 34
<br /> 1000 SP
<br /> 37 5-38 5' WELL GRADED SAND (SW) >95% FINE-COARSE WELL GRADED SAND, <5%
<br /> 36 FINES MODERATE YELLOW BROWN, WET, STRONG PRODUCT ODOR, NO
<br /> ORGANICS WEAK CEMENTATION HOMOGENOUS
<br /> 737 --
<br /> 38 160 SW 38 5-40 LEAN CLAY (CL) <5% FINE, POORLY GRADED SAND, >95% FINES, NO
<br /> DILATANCY MEDIUM-HIGH TOUGHNESS, MEDIUM-HIGH PLASTICITY
<br /> CL MODERATE YELLOW BROWN, NONE-SLIGHT PRODUCT ODOR NO ORGANICS
<br /> 40 2200 MOIST WEAK CEMENTATION HOMOGENOUS
<br />
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