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'AWASSOCIATES INC. �✓ `-�
<br /> 126(1 Groplics DIi1s,lfodesfo,Warllio,ED LOG OF WELL M W 2
<br /> PROJECT RIPON UNIFIED S.D. LOCATION 304 NORTH ACACIA AVENUE. RIPON_ CA PROJECT NO. 13099.0001
<br /> DATE DRILLED 012799 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY 047410
<br /> DRILLING COMPANY DRILLER ROBERT VICKERY METHOD _ HOI IOW STEM AUGER
<br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 35 FT DEPTH TO WATER : INITIAL 19 - -FT STATIC 19.5 FT
<br /> CASING TYPE PVC DIAMETER _ 2 IN SCHEDULE 40 INTERVAL 0 FT TO 14 FT
<br /> SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE _0.Q2D___1bL INTERVAL 34 FT TO 34 FT
<br /> FILTER PACK TYPE RMC IONFSTAR &S — INTERVAL 12 FT TO 34 FT
<br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 12 FT
<br /> COMMENTS: CONTINUOUS CORE TO 45 FEET BGS, BENTONITE FROM 35 TO 45 FEET BGS PAGE 1 OF-.L-
<br /> WELL
<br /> F1WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION
<br /> DETAIL FT. PPM BLOWCOUNT LOG
<br /> 0-2" - Asphalt
<br /> 2
<br /> SP-SM 2--6• POORLY GRADED SAND WITH SILT (SP-SM): 9OX FINE-MEDIUM, POORLY GRADED
<br /> 4 SAND: 10% FINES; MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO
<br /> ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS
<br /> 6 1 — —
<br /> 8
<br /> 10 3
<br /> 12
<br /> — y
<br /> 14
<br /> 4
<br /> 18 6-30' WELL GRADED SAND (SW): >95% FINE-COARSE, WELL GRADED SAND; <5X
<br /> RUSD-MW2-19 SW FINES; PALE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-WET,
<br /> 1 WEAK CEMENTATION, HOMOGENOUS
<br /> 20 419
<br /> 22
<br /> 24
<br /> RUSD-WW2-25
<br /> .r T 929
<br /> 26-
<br /> 30-33' WELL GRADED SAND WITH SILT (SW-SM): 90% FINE-COARSE, WELL GRADED
<br /> 28 SAND: 10X FINES: LIGHT OLIVE GRAY, MODERATE-STRONG PRODUCT ODOR,
<br /> WET, WEAK CEMENTATION, HOMOGENOUS
<br /> 30 284 RUSD-MW2-30 — - 33-35' LEAN CLAY (CL): <5% FINE, POORLY GRADED SAND; >95% FINES; MEDIUM-HIGH
<br /> DRY STRENGTH, NO DILATANCY, MEDIUM TOUGHNESS, MEDIUM PLASTICITY,
<br /> 5W-SM MODERATE YELLOW BROWN, NONE-SLICHT PRODUCT ODOR, MOIST, WEAK
<br /> 32 CEMENTATION, HOMOGENOUS
<br /> 35-38' ELASTIC SILT (MH): <15% FINE. POORLY GRADED SAND; >B5X FINES: LOW-
<br /> 34 CL MEDIUM DRY STRENGTH, ALONE-SLOW DILATANCY, LOW--MEDIUM TOUGHNESS,
<br /> LOW PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, MOIST-WET,
<br /> 3 WEAK CEMENTATION, HOMOGENOUS
<br /> 36 3B-39' SILT WITH GRAVEL (ML): 15% FINE, POORLY GRADED SAND; >15X FINE GRAVEL;
<br /> MH <70X FINES; LOW-MEDIUM DRY STRENGTH, NONE-SLOW DILATANCY, LOW
<br /> TOUGHNESS, LOW PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT
<br /> ODOR, NO ORGANICS, WET, WEAK CEMENTATION, BLOCKY
<br /> ML
<br /> 1 ML 39-40' SILT (ML): <10% FINE SAND; >9OX FINES; LOW-MEDIUM DRY STRENGTH,
<br /> C 40 NONE-SLOW DILATANCY, LOW TOUGHNESS, NONE-LOW PLASTICITY, MODERATE
<br /> YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, WET, WEAK
<br /> CEMENTATION, HOMOGENOUS
<br /> 42
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