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1r ~I <br />J <br />~r 11 <br />-./J <br />GROUNDWATER OBSERVATION WELL REPORT B L_ ~ 01 A <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 Dulling Driller Ron Lancaster Location P20nia <br />Observed by ERF Date Started 11.29-01 C.OlOfadO <br />Checked by RJH Date Completed 11-29-01 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 />GROUN D SURFACE (FT) <br />ELEVATI ON <br /> THICKNESS OF SURFACE SFAL 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 10 OF SURFACE CASING (IN] Flush mount <br /> fines, very stiff. TYPE OF SURFACE CASING <br /> 15-20Yo sand, <br /> 5-30 % gravel <br /> DEPTH BOTTOM OF CASING (FT) <br /> gray [o tan to retl l <br />~ <br />U I ID and OD OF RISER PIPE (IN) 0.8 <br />N 14.5-29.5' Sandstone TYPE OF RISER PIPE Flush joint PVC <br />o mosdy sand, fine <br />o <br />? to medium grained <br />moderately to very ~- DIAMETER OF BOREHOLE (IN) 3.8 <br />~ friable ~- TVPE OF BACKFILL AROUND RISER PIPE Portland Cement <br />Z <br />O <br />H <br />DEPTH TOP OF SEAL, IF ANY (FT) 10.5 <br />~ <br />2 I TYPE OF SEAL Granular eentonite <br />~ DEPTH BOTTOM OF SEAL (FT) 12.0 <br /> <br />J <br /> <br />~ I DEPTH TOP OF PERVIOUS SECTION 13.0 <br />J <br />~ <br />TYPE OF PERVIOUS SECTION PVC <br /> <br />W DESCRIBE OPENINGS 10 slot Machine cut <br /> <br />W I I ID antl OD OF PERVIOUS SECTION (IN) 0.8 <br />CO <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 /> 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 ,7 <br /> <br />total steel cable length from bottom of hole = 50' 8.5', total coax length from 22' tlepth = 25' l <br />'' <br />~'>a GEI COI15llIC3ttfS, Inc. <br />20' 3/4" PVC for protective sheath over steel cable ENGLEWOOD COLORADO <br />