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== BORING NO.: SB-41 SHEET 1 OF 2 <br /> t--DG:99 <br /> MEEFr1I`0 PROJECT: Mountain House Development Site#6 <br /> From Science to Solutions <br /> LOCATION: Mountain House,San Joaquin County,California <br /> COORDINATES: Y 37.7770691607,X -121.522229667 PROJECT NO.: 46010SC137-A10-121 <br /> SURFACE ELEVATION: NA DATUM: NA LOGGED BY: Sergio Schirripa <br /> CL W ❑ E [L w 3- a p z w o m GEOLOGIC COMPLETION <br /> CL D' a s J w } J Z O DESCRIPTION DETAIL <br /> ❑ � ZUz U) Z � mo w �U) <br /> Q o - <br /> SILT (ML): about 100%F very dark grayish brown <br /> HA 10YR 3/2);d stiff. <br /> 100 4-inch thick layer of cobbles(3 to 4 inches) <br /> 0.6 <br /> •7 l�•A'l� <br /> ?�; Native soil <br /> :��.'•Jig: <br /> 0'9 As above:color change to dark grayish brown (10YR <br /> :::!.• <br /> 4/2);dry;soft. <br /> 5 SB-41- <br /> 5' <br /> 0.6 As above:color change to brown(10YR 4/3);dry. <br /> 1 6.9 feet bgs <br /> 0.1 SB-41 Sandy SILT (ML): about 70%F 30%S brown (10YR 8 feet bgs <br /> 4/3);wet;soft;fine grained sands. <br /> 10 0.0 DP <br /> 80 <br /> Silty SAND (SM): about 30%F 70%S brown (10YR <br /> 4/3);wet;loose. <br /> SAND with silt (SP-SM): about 10%F 85%S 5%G; Neat cement <br /> brown(10YR 4/3);wet;medium dense. <br /> 2-inch thick stringer of silt <br /> 0 <br /> N <br /> 0 <br /> 15- <br /> 0.5 DP SAND(SP):about 5%F 95%S wet;loose. <br /> c� <br /> M <br /> z 90 <br /> w <br /> a 2-inch section with gravels (0.5 to 1 inch in <br /> o diameter). <br /> J <br /> SILT(ML):about 95%F 5%S brown (10YR 4/3); dry; <br /> SB-41- firm. <br /> 0 <br /> 18' <br /> 0 <br /> Col <br /> M <br /> r] <br /> 0 <br /> No recovery <br /> DRILLING CONTRACTOR: Penecore Drilling REMARKS: Boring hand cleared to 10 feet bgs. Temporary prepacked well screen set from 5 to 10 <br /> o DRILLING METHOD: Direct Push feet bgs to collect groundwater sample. Direct push advancement followed the collection of first encountered <br /> z groundwater sample. <br /> w DRILLING EQUIPMENT: Geoprobe 7822DT <br /> a <br /> °o DRILLING STARTED: 11/16/09 1 ENDED: 11/16/09 <br /> J <br />