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BORING NO. G-5B <br />COORDINATES: N.2222571.24 <br />E.6387374.37 <br />N.County Landfill PROJECT NUMBER: 631230195 FIELD GEOLOGIST: Michael Yurovsky TOC ELEV: ft 114.49 <br />West boundary DRILLING METHOD:CHECKED BY: Julian Isham GS ELEV: ft 108.8 <br />Cascade Drilling BORING DIAMETER:APPROVED BY: Julian Isham <br />David Gay TOTAL DEPTH: 197 Feet <br />Dia.: 2" + 1" piezometer Length: 20 ft Type/Size 0.020" slot PVC Sand Pack: #2/12 <br />Dia.: 2" + 1" piezometer Length: 177 ft Type PVC, Sch. 80 <br />PROJECT: <br />LOCATION: <br />DRILL CO.: <br />DRILLER: <br />SCREEN: <br />CASING: <br />Description Comments <br />Sonic <br />10"DATE BEGAN: 3/6/2018 <br />DATE FINISHED: 3/20/2018 <br />Well Completion <br />Recovery <br />% <br />USCS <br />Symbol Profile <br />Sample <br />Collected <br />Depth <br />(feet) <br />100%SW Sand continued <br />SC Clayey sand, fine to medium grained, medium plasticity,2"-dia Sch. 80 PVC + <br />dark yellowish brown (10YR 3/4) <br />Grout: 95% Portland cement / <br />36 ft - becoming lightly cemented <br />SM ::::Silty sand, fine to medium grained, dense, dry, <br />::::dark brown (7.5YR 3/4) with iron oxide spots <br />:::: <br />::::38 ft - Lots of iron oxide specks <br />:::: <br />:::: <br />:::: <br />SW Sand, fine to medium grained, loose, lightly cemented, dry, <br />dark yellowish brown (10YR 4/4) <br />SM ::::Silty sand, fine to medium grained, dense, dry, <br />::::dark yellowish brown (10YR 3/4) <br />:::: <br />::::42.5 ft - Becoming loose and lightly cemented <br />:::: <br />:::: <br />::::44 ft - Some clay inclusions <br />:::: <br />:::: <br />ML Silt, lightly to moderately cemented, dry, with iron oxide <br />inclusions, brown (10YR 4/3) <br />SM ::::Silty sand, fine to medium grained, dense, dry, <br />::::dark yellowish brown (10YR 3/4) <br />:::: <br />::::48.5 ft - Becoming loose, lightly cemented, iron oxide <br />:::: inclusions <br />:::: <br />:::: <br />:::: <br />:::: <br />:::: <br />:::: <br />:::: <br />SW Sand, fine to medium grained, loose, dry, <br />dark yellowish brown (10YR 3/6) <br />SM ::::Silty sand, very fine to fine grained, lightly cemented, dry, <br />::::grayish brown (10YR 5/2) <br />:::: <br />:::: <br />:::: <br />:::: <br />:::: <br />SC Clayey sand, very fine to fine grained, lightly cemented, dry, <br />dark brown (10YR 3/3) <br />60.0 <br />58.0 <br />59.0 <br />56.0 <br />57.0 12"-dia boring <br />10"-dia boring <br />54.0 <br />55.0 <br />52.0 <br />53.0 <br />50.0 <br />51.0 <br />48.0 <br />49.0 <br />46.0 <br />47.0 <br />44.0 <br />45.0 <br />42.0 <br />43.0 <br />40.0 <br />41.0 <br />38.0 <br />39.0 <br />36.0 <br />37.0 <br />34.0 <br />35.0 <br />31.0 1" dia. Sch. 80 PVC <br />32.0 <br />33.0 5% Bentonite <br />30.0 <br />12"-dia boring <br />Page 2 of 7