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..� Drilling Log y
<br /> ITIT CORPORATION Monitoring Well MW-8
<br /> A Member of the IT Group
<br /> Project 7-Eleven, SSW 19976 Owner 7-Eleven, Inc. See Site Map
<br /> Location 1399 N. Main Street, Manteca, CA Proj. No. 779956 For Boring Location
<br /> Surface Elev. 34.13 ft. Total Hole Depth 30 ft. Diameter 8 in. COMMENTS:
<br /> Top of Casing 33.65 ft. water Levet Initial 18 ft. Static 19.4 ft.
<br /> Screen:Dia 2 in. Length 20 ft. Type/Size Sch. 40 PVC, 0.020 in
<br /> Casing: Dia 2 in. Length 10 ft. Type Sch. 40 PVC
<br /> Fill Material #3 Sand Rig/Core Limited Access Riq -DWSplit Spoo
<br /> Drill Co. Gregg Drilling Method Hollow Stem Auger
<br /> Driller Bobby Deason Log By Bob Butler Date 12/22/99 Permit
<br /> Checked By Ed Simonis License No. California RG114422
<br /> C 0 \ T N
<br /> Description
<br /> > t
<br /> m� 3Z a
<br /> —0, E a ° (Color, Texture, Structure)
<br /> Um x U) Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50%
<br /> -2
<br /> 0 Fine medium sand with GRAVEL (fill): brown, loose, subrounded,
<br /> < < moist, no hydrocarbon odor.
<br /> 2
<br /> SW
<br /> 4 `
<br /> 0 MN-6@5' SW Fine SAND: light brown, subrounded, loose, moist, no hydrocarbon
<br /> < <
<br /> odor.
<br /> 6
<br /> 8
<br /> ML Clayey fine sand and SILT (15,35,50): brown, plastic, medium stiff,
<br /> 10 — o Mw-a@a' medium plastic, moist to wet, no hydrocarbon odor.
<br /> 12
<br /> 14 = Silty CLAY (40,60): olive green to gray, plastic, stiff, moist, no no
<br /> 1.1 MN-BQ15' CL hydrocarbon odor.
<br /> 16
<br /> 18 = Groundwater Encountered.
<br /> ML Clayey SILT (30,70): mottled green-gray to light brown, plastic,
<br /> 20 — 47 mw-6@20' soft, medium stiff, wet, no hydrocarbon odor.
<br /> Static 01/24/00.
<br /> 22 =
<br /> SW Fine medium SAND: light green, loose, subrounded, wet to
<br /> saturated, weak moderate hydrocarbon odor.
<br /> 24 =
<br /> 2.2 MM-6@25
<br /> 26 — Silty SAND (15,85): olive gray to olive green, loose, subrounded,
<br /> SM poorly sorted, wet to saturated, weak to no hydrocarbon odor.
<br /> H32
<br /> —
<br /> "�-B@30 No recovery.
<br /> 03/14/2000lithlog-Mar,99 Page: 1 of 1
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