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I • <br />GROUNDWATER OBSERVATION WELL REPORT B 1 _ ~ O ~ /~ <br />" <br /> U L / <br />1 <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 COlofad0 <br />Checked by RJH Date Completed 1 t•29-01 Project No. 99292 <br /> <br />SURVEY LENGTH OF SURFACE CASING ABOVE GROUND 0.8 <br />DATUM NGVD SURFACE (FT) <br /> ' <br /> LENGTH OF RISER PIPE ABOVE GROUND 0 <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 addilional 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 /> 1520Y sand, <br /> 5-30% gravel <br /> DEPTH BOTTOM OF CASING (FT) <br /> gray to tan to red <br /> ID and OD OF RISER PIPE (IN) 0.8 <br />N 14.529.5' Sandstone TYPE OF RISER PIPE Flush joint PVC <br />o mostly sand, fine <br />Z to medium grained I ~- DIAMETER OF BOREHOLE (IN) 3.8 <br /> moderately to very <br />~ friable ~ TVPE OF BACKFILL AROUND RISER PIPE PoNand Cement <br />Z <br />O <br />F- <br />DEPTH TOP OF SEAL, IF ANY (FT) t0.5 <br />~ <br />Z I TYPE OF SEAL Granular Bentonite <br />~ DEPTH BOTTOM OF SEAL (FT) 12.0 <br /> <br />J <br />O 3 <br />0 <br /> I DEPTH TOP OF PERVIOUS SECTION 1 <br />. <br />~ TYPE OF PERVIOUS SECTION PVC <br /> <br />W DESCRIBE OPENINGS 10 slot Machine cut <br /> <br />W I ID and OD OF PERVIOUS SECTION (IN) 0.8 <br />~ I J <br /> <br /> ~ TYPE OF BACKFILL AROUND PERVIOUS SECTION 10x20 silica sand <br /> D <br />I <br />T <br />8 <br />0 <br /> EPTH BOTTOM OF PERVIOUS SECT <br />ON (F <br />) 1 <br />. <br /> • DEPTH BOTTOM OF SAND COLUMN (FT) 19.0 <br /> ELEV./DEPTH TOP OF SEAL, IF ANY (FT) <br /> TYPE OF SEAL <br /> ELEV /DEPTH BOTi OM OF SEAL (FT) 29.0 <br /> TYPE OF BACKFILL BELOW PERVIOUS SECTION. Portland Cement <br /> IF ANY <br />NOTES: Piezometer, 3l8" steel cable, and coaxial cable down hole <br />lolal steel cable lengm from bottom of hole = 50' 8.5", total coax length from 22' depth = 25' ~_ GEI CORSUICat1t5, IIlC. <br />20' 3/4" PVC for protective sheath over steel cable ENGLEWOOD COLORADO <br />/~~ 46 <br />/1t PPRA~ED I ~I 3 <br />