|
Project: ARCO Station # 2168 Log of Extraction Well/Sparge Well:
<br /> FILocation. 441 West Charter Way,Stockton,CA Project Number: 38466562 EW-9/SP-9
<br /> F
<br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: EW-9/SP-9
<br /> Dates Drilled: 11/11/05 Well Construction Date: 11/11/05 Logged By: M.Hogaboom
<br /> Borehole Diameter: 10-inch Casing Diameter: EW-2-inch;SP-I-inch Type: SCH 80 PVC Checked By: Vera Elarth,R.G.
<br /> Total Depth Drilled: 37 feet Screen Interval: EW-15-25',SP-32.5-34.5' Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon
<br /> Comments:
<br /> � oq
<br /> C] . E�
<br /> Z Sample ID °" F" LITHOLOGY DESCRIPTION WELL CONSTRUCTION
<br /> 0 Silty Clay(CL). Yellowish brown,hard,medium plasticity,white EW well secured with 0
<br /> mottling,no odor,dry to damp. i n SP pressure cap;d with lip
<br /> well
<br /> pending system �p
<br /> U installation
<br /> U
<br /> 7
<br /> 5Z 5
<br /> 48 Neat Cement
<br /> 2-10 ft
<br /> 10 10
<br />' 5016
<br /> Clayey Silt(ML). Brown,hard,low plasticity,no odor,dry. Bentonite Seat
<br /> i 10.12 ft
<br /> t
<br /> i� 15 'i:' 15
<br /> 29
<br /> Sandy Silt(ML). Brown,very stiff,non plastic,35%very fine grained
<br /> sand,trace fine grained,white mottling,no odor,damp.
<br /> EW-9
<br /> 2-inch SCH 80 PVC,
<br /> o.o20-inch slot
<br /> 20 ::: Screen 15-25 fl 20
<br /> Yellowish brown,hard,non-plastic,15%very fine grained sand,minor #3 Filter Pack Sand
<br /> 37 EW-9-20 0940 clay,black staining,white mottling,slight hydrocarbon-like odor,damp. 12-26 ft
<br /> EX.
<br /> iii
<br /> i
<br /> 25--
<br /> -25
<br /> 32
<br /> Silty Clay(CL).Grayish brown,hard,medium plasticity,white
<br /> ii mottling,gray hydrocarbon-like staining,strong hydrocarbon-like odor,
<br /> damp to moist- Bentonite Seal
<br /> 26-30.5 ft
<br /> a 30 30
<br /> Dark Clay(CL). k grayish brown,very stiff,medium to high plasticity,
<br /> trate silt,white mottling,gray hydrocarbon-like staining,strong 1-inch SCH 80 PVC,
<br /> hydrocarbon-like odor,moist.
<br /> 0.020-inch Slot
<br /> Screen 32.5-34.5 ft
<br />{ #3 Filter Pack Sand
<br /> I+II 30.5-35 ft
<br /> 35 Q 35
<br /> i 1 Bentonite Seal
<br /> 22Silty Sand(SM).Very dark greenish gray(Gley IOGY 311),60%fine 35-37 k
<br /> grained sand,loose,very strong hydrocarbon-like odor,moist.
<br /> I
<br /> 1�.
<br /> a�
<br /> ' 2870 Gateway Oaks Dr.,Ste 3W
<br /> ` Sacrammo,CA 95833
<br /> 916-679-2000
<br />
|