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Log of Borehole: CEM-005 Figure 9 <br />Page 5 of 9 <br />Project Name: CEMEX Lyons Plant <br />Project Location: Lyons, CO Project Number: 129142.005 <br />Drilling Method: Mud Rotary <br />Dolling Rig Type: Star 30 KDH <br />Diling Fluid: Water <br />Boring Diameter: 12.75/6.0 inches <br />Boring Depth: 410 feet bgs <br />Well Depth: 398 feet <br />Well Completion: Stick-up Well Casing Material: 4" Schetlue140 PVC <br />Well Screen Material: 4" PVC, 0.01-inch slot <br />Depth to Groundwater at Time of Drilling: N/A <br />Depth to Groundwater 06/19/2007: <br />394.85 feet bTOC <br />TOC Elevation: 5217.23 feet AMSL 1 <br />Groundwater Elevation: 4822.38 feet AMSL - AMSL -Above mean sea level <br />bgs -below the ground surface <br />bTOC -below Top of Casing Elevation <br /> <br />Logged B T. Van Arsdale <br />Checked B~y: A. Notary <br /> <br />a m <br />o v V <br />c c <br />~ ~ <br /> <br />Lithologic Description <br />Monitoring <br />Con truction <br />200_ Sn <br /> ale Shale; dark gray to black, hartl, moderately indurated, non- to <br />htl <br />calcareous <br />sli <br />- y <br />g <br />. <br />- Trace amounts of hartl light brown chert between 156 antl 176 <br />20rr feet bgs. <br />_ 206 <br />_ male Shale; dark gray to black, hartl, moderately indurated, <br />- calcareous to very calcareous with calcite inclusions, <br /> pyretic. Occasional intervals of light brown, hard chert. <br />210- <br /> <br /> <br /> <br />215- <br /> <br /> <br /> <br />220- <br /> <br /> <br /> <br />225- <br /> <br /> <br /> <br />230- <br /> <br /> <br /> <br />235- <br /> <br /> <br /> <br />240- <br /> <br /> <br /> <br />245- <br /> <br /> <br /> <br /> <br />Drilling Company: Ingram ~ <br />Date Started: 5/14/2007 Date Completed: 5/17/2007 ~ , <br />' r ~ <br />