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WELL CONSTRUCTION LIEHOLOGY SAMPLE DA1A
<br />Graphic
<br />Log Description
<br />grained. SAND (SP), very dark gray (N 3/), wet, dense. fine
<br />poorly graded.
<br />SILTY SAND (SM), very dark gray (N 2/). wet, hard, rust-
<br />colored gravel.
<br />Sample Penetration
<br />No. and Rate
<br />Interval (Blows/ft I
<br />Vegetation/dry bush
<br />SILT (ML), dark brown (10YR 3/3), moist stilt moderate
<br />plasticity, mottled with rust-colored staining, micaceous.
<br />Wet - no recovery,
<br />CLAY (CL), very dark green (10YR 3/2). moist to wet,
<br />low to medium plasticity, mottled.
<br />SILTY CLAY (CL), very dark green (10YR 3/2). moist to wet,
<br />low to medium plasticity, mottled, interbedded with SILT
<br />(ML), dark brown (10YR 3/3), moist, sett low plasticity.
<br />PEAT (PT), black (10YR 2/1), moist highly organic.
<br />, CLAY (CH), very dark gray (10YR 3/1) moist to wet, stiff,
<br />. highly plastic, organic, mottled.
<br />SILT (ML). very dark gray (10YR 3)1), moist, very hard, non
<br />plastic, micaceous.
<br />SANDY SILT (ML), very dark gray (10YR 3/1), wet, medium
<br />stiff, moderate plasticity, 20% fine-grained sand.
<br />SILT (ML), dark yellowish brown (10YR 414), moist. stiff, non
<br />plastic, mottled with rust-colored staining.
<br />Wet at 20 Feet
<br />SILTY SAND (SM). dark yellowish brown (10YR 4/4), wet,
<br />dense, line grained, 20 35% silt.
<br />— — _
<br />SILT (ML). dark gray (N 41), moist, very stiff, non plastic,
<br />mottled.
<br />Color change to very dark gray (N 3/) at 27.5 feet
<br />BOTTOM OF BORING AT 30 FEET.
<br />LOCKING CAP
<br />— 2-INCH
<br />DIAMETER
<br />SCH 40
<br />BLANK PVC
<br />CASING
<br />CEMENT
<br />GROUT
<br />8-INCH DIA.
<br />BOREHOLE
<br />l- STONITE
<br />'1- ME TS
<br />,2/12 SAND
<br />2-INCH
<br />DIAMETER
<br />PERt OHATED
<br />PVC CASING
<br />(0.010. inch
<br />slutt)
<br />CAP
<br />BENTONITE
<br />PELLETS
<br />CHRISTY BOX
<br />Depth,
<br />feet
<br />20
<br />HE AOSPACL
<br />F ,I,UREMENTS
<br />Field
<br />Screening
<br />(PPm)
<br />Well elevation:
<br />
<br />Date well drilled: April 20, 1999
<br />
<br />Drilling company: Spectrum
<br />Drilled by: Floyd, Ryan
<br />tri Bobby
<br />
<br />Sampling Method: Hollow-Stem Auger
<br />
<br />Geologist: D. Kourda
<br />EXPLANATION
<br />Clay
<br />Silt
<br />Sand
<br />Gravel
<br />
<br />Water level at time of drilling
<br />
<br />Approved by:
<br />
<br />WELL CONSTRUCTION AND LITHOLOGY FOR WELL W-235 (page1of 1)
<br />Th Tetra Tech EM Inc.
<br />NCTS STOCKTON
<br />Site 7
<br />(069-251B0201) m.235 CDR 06290CrystJMUMJB
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