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r <br /> ❑� Monitoring Well 15A Sketch Map <br /> Drilling Lag <br /> GROUNDWATER <br /> TECHNOLOGY, INC. <br /> Project 7-11 /Stockton Owner Southland Corporation <br /> Location 9110 Thornton Rd. Project Number 20311475 2894 <br /> Date Drilled 817189 Total Depth of Hole 75' Di'ameter 7.5" <br /> Surface 0evation Water Level Initial 501 24—hour <br /> Screen: Dia. 2" Length 51 Slot Size •020" <br /> Casing: Dia. 2" Length 70' Type PVC <br /> Drilling CompanSierra Pac. Drilling Method Hollow Stem Auger Notes <br /> Driller Anthony-Schonber er Log by Paul Horton" /Joe Ramage ND = Non Detectable <br /> Geologist/Engineer License No. <br /> ^ $ Description/Soil Classification <br /> (Color, Texture, Structure) <br /> i <br /> ;o'.a�,Q•.-; Road base (coarse gravel fill) <br /> 2 G <br /> 4 Tan, silty, fine sand (moderately well sorted, <br /> medium dense, dry, no product odor) . <br /> fi = ; SM ' (grades ,to medium--grained) <br /> Q B <br /> 8 <br /> ND � <br /> 10 Light brown, medium sand (poorly sorted, dense, <br /> moist, no product odor) . <br /> •'S.P•'• (grades reddish-brown) <br /> - 12 - <br /> ND <br /> 2Np C � <br /> SBrown, silty,'ivery fine sand (medium dense, moist, <br /> ' no product odor. <br /> 16 <br /> (grades less silty) <br /> i <br /> Brown very fine sand (well sorted, medium dense, <br /> 18 •.JcP.• moist, no product odor) . <br /> e' D <br /> 20 ND Medium brown,] sandy silt, medium stiff, moist, <br /> ML no product odor) . <br /> o- o: <br /> o _ Brown, fine sand (very well sorted, medium dense, <br /> 22 0.• :SP�: moist, no product odor) . <br /> o <br /> MMOH 211d. 19M - v c Pageof 3 <br /> I <br />