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CAMP DRESSER & McKE-,., Sheet 2 of 2
<br /> EXPLORATO BORING
<br /> CDM
<br /> 100 Pringle Ave,Suite 300
<br /> .... Walnut Creek,CA 94596 B-1/PZ-1
<br /> Client: City of Stockton Project Name: Brookside Pump Station
<br /> Project Location: Brookside Road and 1-5 Project Number: 2500-29248
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<br /> a s Sample v E cL ID� a� c Material n Depth Well Construction
<br /> ca Number c a`) a m `� �' description `� (ft) Detail
<br /> cn a � v in m c7
<br /> 66.a
<br /> 4 GP GRAVEL,fine to coarse,consisting of 20
<br /> SS B1-20 0 6 Oils 80%quartzite,dark gray,rounded,
<br /> 6 centroidal grains and 20%chert with o 4 sa.0
<br /> 1mm quartz veinlets,pink to red, O 24.0
<br /> subangular grains,no recovery, °O�
<br /> description based on material retained o p Filter Pack-RMC
<br /> in shoe Q graded Monterey#3
<br /> 61.0 clean sand 61.D
<br /> 1 GP GRAVEL,olive brown(2.5YR4/3), ° 25 Bentonite Seal- 25.0
<br /> S5 Bi-25 0 1 0/18 saturated,very loose,up to 1-inch
<br /> 2 rounded grains,gravel consists of 80% p p Cetca 3a inch
<br /> metasandstone,dark greenish gray Q bentonite tablets,
<br /> g g y
<br /> (10Y4/1),coarse grained,and 20% °� 10 minute hydration
<br /> � time
<br /> chert,weak red(2.5YR512),angular,no o
<br /> recovery,material described retained in
<br /> shoe _ ° 0 56.0
<br /> SM SAND,fine grained,no recovery, 30 Well Screen- `
<br /> SS B1-30 0118 material described retained in shoe,5 2-inch PVC,20 slot
<br /> feet of heave during sample collection
<br /> i..
<br /> 51.0
<br /> 8 CL CLAY,dark greenish gray(10BG411), 35
<br /> SS 61-35 0 13 18118 wet,stiff, medium plasticity,medium to
<br /> is high dry strength,some(5%)fine
<br /> grained sand,trace of white decayed
<br /> rootlets,trace mica, massive
<br /> 46.0 46.0
<br /> 6 CL CLAY,dark greenish gray(10BG4/1), 40 40.0
<br /> SS Bi-40 4.3 13 18118 wet,very stiff,non-plastic,occasional
<br /> 19 1-2 mm circular void spaces,some44i5
<br /> mica flakes(<1 mm), massive
<br /> �.. Total depth is 41.5 feet below ground
<br /> surface(bgs).
<br /> Groundwater encountered at 20 feet bgs 41.0
<br /> during drilling. 45
<br /> Piezometer PZ-1 installed in borehole.
<br /> 36.0
<br /> 50
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<br /> 0
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<br /> Y 31.0
<br /> a0 55
<br /> cc
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<br /> LU
<br /> 6
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<br /> Q
<br /> r.,
<br /> m 26.0
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