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O Aft <br /> ' PROJECT: SURLAND HOMES PROPE <br /> Tracy, California Log of Well NO. TW-1 <br /> ' BORING LOCATION: Lot 59, 1572 Blackbird Court ELEVATION AND DATUM: <br /> DRILLING CONTRACTOR: Gregg Drilling and Testing, Inc. DATE STARTED: DATE FINISHED: <br /> 9/10/98 9/10/98 <br /> DRILLING METHOD: 8-inch hollow stem auger TOTAL DEPTH: SCREEN INTERVAL: <br /> 14.0 feet b s 4.0-14.0 feet bgs <br /> DRILLING EQUIPMENT: Rhino Rig M5T DEPTH TO ,FIRST ,Cj <br /> CASING: <br /> WATER: ; --- 2-inch Sch.40 PVC <br /> ' SAMPLING METHOD: 18-inch split spoon sample LOGGED BY: <br /> M.R. Keim <br /> HAMMER WEIGHT: --- DROP: --- RESPONSIBLE PROFESSIONAL: , REG.NO. <br /> D. Zemo CEG 1747 <br /> ' SAMPLES a <br /> _.. a DESCRIPTION <br /> a `mm n na � aE NAME(USCS Symbol):cover,molst.x by weight.piast., WELL CONSTRUCTION DETAILS <br /> E Z m c g 3 censisteney,structure,cementation,react wMCI.geo.inter. AND/OR DRILLING REMARKS <br /> Surface Elevation: <br /> LEAN CLAY (CL) Stovepipe with 6•inch <br /> Light olive brown (2.5Y 5/3), moist, 90%fines, stick-up <br /> ' 1 10%,fine sand, medium plasticity, firm Locking well cap <br /> 8-inch-diameter <br /> 2 m borehole <br /> 2-inch-diameter <br /> .o Sch.40 PVC <br /> 3 = blank casing <br /> Concrete <br /> 4 Baroid 3/8-inch <br /> bentonite chips <br /> 5 Lonestar 1/20 <br /> sand filter pack <br /> 6 2-inch-diameter <br /> Sch.40 PVC <br /> well screen with <br /> 7 0.010-inch slot size <br /> 8- <br /> 9- Soft <br /> 10 <br /> LEAN CLAY with SAND (CL) <br /> Light olive brown (2.5Y 5/3), wet, 80%fines, <br /> 11 20%fine sand, medium plasticity, soft <br /> LEAN CLAY(CL) <br /> 12 Light olive brown (2.5Y 5/3), moist, 90%fines, <br /> 10%fine sand, medium plasticity, firm <br /> 13 <br /> Threaded PVC <br /> 14 endcap <br /> Bottom of boring at 14.0 feet logs. <br /> 15 <br /> w-t(12t95)Project No. 4780 Geomatrix Consultants Figure •-- <br /> s:W780NoP\Tw_ot.ai <br />