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t' <br /> WELL LOG MW-23 <br /> JOB NUMBER: 211-71-6 DATE DRILLED: 4-2-88 <br /> JOB NAME*ouglaS Gas Station, Lodi SURFACE ELEVATION:51.70' <br /> DRILL RIG: All Terrain CME 550 DATUM:_Ciy BN @ 51.70' <br /> SAMPLER T5'PE: DRIVE WEIGHT: HEIGHT` OF FALL: <br /> 2s19 Split: — 140 pounds 30 inches <br /> Laboratory Analysis: S-Soil Properties, C-Chemicel Properties <br /> i i =h <br /> Well Construction Lab • Blows saVLI; sample i15CS Description <br /> f Analysis Per Foot Depth Type symbol <br /> SP POORLY-GRADED SAND - Light gray to brown. <br /> Solid 2" Sch. — —— --— —— <br /> 40 PVC Casing <br /> 30 9b/tl" 30- <br /> 2V- ML SILT with clay - Gray, moist, very hard, <br /> 39h, low plasticity, (ecderate hydrocarbon <br /> 3 odor). <br /> k 32 . ement/Eentonite <br /> grout <br /> 34 <br /> 71 35' 2Yt' SILT with sand - Mottled oraogish-brown <br /> w 35K' and gray, moist, very hard, very fine- <br /> 36 grained;ad, (slight to moderate <br /> "•' hydrocarbon odor). - <br /> F~ 38 entonite seal ———— -—— — —— — <br /> / <br /> 40 37 40' all SM SILTY SAND - Nottln-1 orangish-brown and _ <br /> 40h' grayish-green, moist, dense, fine-grained A. <br /> sand, (strong hydroca bon odor). <br /> Sand Pack — — —— — — — — —— — <br /> Lane Star #2/12 <br /> im <br /> 44 <br /> a <br /> C 30 45' 2h" SILTY SAND with clay - Mottled orangish- <br /> Ff 45h' brown and grayish green, moist to wet, <br /> 46 medium dense to dense, fine-grained sand, <br /> " <br /> Borehole rxmerous pores (<C.T" diameter) with red <br /> staining), (moderate hydrocarbon odor). <br /> D 48 _ <br /> Slatted 2" sch. <br /> { 40 PVC Screen, <br /> € 0.02" Slots, 4 <br /> `.� 50 Slots per Inch 44 50' 28" <br /> ' 50'b' <br /> R NL SILT with sand - Grayish-green to brown, <br /> moist to wet, hard, very fine-grained <br /> 52 sand, (moderate hydrocarbon odor). <br /> POORLY-GRADED SAND - Gray to light brown, <br /> 33 55' 2K" SP saturated, dense, medium-grained sand, <br /> C. SSYe' (moderate hydrocarbon odor). <br /> Du Pant Hlosystsms <br /> Page 2 of 8 <br /> Logged by.- <br /> Approved <br /> y:Approved by: <br /> A-57 <br />