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WELL CONSTRUCTION LOG <br />WELL NUMBER PW6-155 <br />DRILLING METHOD Mud Rotary <br />LOGGED BY R. Siegfried <br />REMARKS Weather: Sunny, 65 E. no wind <br />cc <br />LU > <br />0 <br />LU cc SAMPLE ID. SAND medium grained, brown <br />-30 <br />45 <br />--55 <br />70 T <br />-60 <br />—75—_ <br />— -65 <br />SAND- medium grained with some coarse sand layers <br />LOCATION Lathrop Groundwater Remedial Project, Lathrop, CA CASING TYPE/DIAMETER 10 Gage Mild Carbon Steel/6.625-in <br />g <br />0 <br />TreaTek - CR AT' COMPANY <br />• <br />-^f1JECT NUMBER 197-36 <br />JECT NAME PW-Replacement Program DATE DRILLED February 21, 1997 <br />SCREEN TYPE/SLOT Continuous Slot Stainless Steel/0.065-in <br />GROUND WATER ELEVATION -0.31 feet <br />10 <br />5 <br />LITHOLOGIC DESCRIPTION <br />SP-SM - SAND with silt, fine grained. light brown <br />SAND- medium grained, gray <br />ML - CLAYEY SILT - brown <br />F- <br />CL CO <br />5 <br />15 <br />- -.--- <br />-20--- <br />- <br />_ <br />--10 <br />—25-1 <br />— -15 <br />—30- - <br />-20 <br />—35 - <br />— -25 <br />--35 <br />5- 02= _L. _ <br />--40 <br />L55_ _ <br />--45 <br />SP-SM - S-A17\115 g-rain-ed-%;.6.Th ------ ----------- - L60= - <br />— -50 <br />—65-- <br />SP <br />SM <br />SP <br />SP <br />SP <br />— <br />= GRAPHIC LOG SP/CL - SAND - medium grained, gray, with clayey <br />laminations <br />ML- CLAYEY SILT - with occasional thin sandy layers, <br />gray <br />WELL DIAGRAM <br />13-in dia. <br />Borenole <br />Casing <br />Centralizer <br />9 Sack <br />Cement/Sand <br />Slurry <br />6.625-in MAd <br />Carbon Steel <br />10 Gage <br />Casing <br />Centralizer