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GROUNDWATER OBSERVATION WELL REPORT BL-101A <br /> Project Bruce Park Dam <br /> Location Paonia Colorado PG. 1 OF 1 <br /> Client Terror Ditch and Reservoir Company Boring No. BL-101A <br /> Contractor Heliport Drilling Driller Ron Lancaster Location Paonia <br /> Observed by ERF Date Started 11-29-01 Colorado <br /> Checked by RJH Date Completed 11-29-01 Project No. 99292 <br /> SURVEY LENGTH OF SURFACE CASING ABOVE GROUND 0.8 <br /> DATUM NGVD SURFACE (FT) <br /> ENGTH OF RISER PIPE ABOVE GROUND 0' <br /> L <br /> GROUND SURFACE (FT) <br /> ELEVATI ON <br /> THICKNESS OF SURFACE SEAL BELOW 0.0 <br /> GROUND SURFACE, IF ANY (FT) <br /> TYPE OF SURFACE SEAL (indicate any Portland Cement <br /> 0 -.7' Clayey Silt additional seals) <br /> Mostly fines, black <br /> .7-14.5 Clay mostly ID OF SURFACE CASING (IN) Flush mount <br /> fines, very stiff, TYPE OF SURFACE CASING <br /> 15-20% sand, <br /> 5-30% gravel <br /> DEPTH BOTTOM OF CASING (FT) <br /> gray to tan to red <br /> I ID and OD OF RISER PIPE (IN) 0.8 <br /> ro <br />U) <br />14.5-29.5' Sandstone <br />TYPE OF RISER PIPE Flush joint PVC <br /> o mostly sand, fine <br /> <br />o <br /> <br />Z <br />to medium grained <br />I <br />moderately to very <br />DIAMETER OF BOREHOLE (IN) 3.8 <br />?- <br />I <br /> friable {--- TYPE OF BACKFILL AROUND RISER PIPE Portland Cement <br /> z <br /> O <br />DEPTH TOP OF SEAL, IF ANY (FT) 10.5 <br /> Z ( TYPE OF SEAL Granular Bentonite <br /> O DEPTH BOTTOM OF SEAL (FT) 12.0 <br /> U <br /> J <br /> P OF PERVIOUS SECTION 13.0 <br />T <br />T <br /> O H <br />DEP <br />O <br /> I <br /> <br /> PVC <br /> Q TYPE OF PERVIOUS SECTION <br /> 0-1 DESCRIBE OPENINGS 10 slot Machine cut <br /> W <br /> z <br />W ID and OD OF PERVIOUS SECTION (IN) 0.8 <br /> C? I ( <br /> <br /> ?--- TYPE OF BACKFILL AROUND PERVIOUS SECTION 10x20 silica sand <br /> <br /> DEPTH BOTTOM OF PERVIOUS SECTION (FT) 18.0 <br />?- DEPTH BOTTOM OF SAND COLUMN (FT) 19.0 <br />I ELEV./DEPTH TOP OF SEAL, IF ANY (FT) <br />TYPE OF SEAL <br />ELEV./DEPTH BOTTOM OF SEAL (FT) 29.0 <br />TYPE OF BACKFILL BELOW PERVIOUS SECTION, Portland Cement <br />IF ANY <br />NOTES: Piezometer, 3/8" steel cable, and coaxial cable down hole <br />total steel cable length from bottom of hole = 50' 8.5", total coax length from 22' depth = 25' _ GEI Consultants, Inc. <br />20'3/4" PVC for protective sheath over steel cable ENGLEWOOD COLORADO