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GROUNDWATER OBSERVATION WELL REPORT <br />Project Bruce Park Dam <br />Location Paonia Colorado <br />• Client Terror Ditch and Reservoir Company <br />Contractor Heliport Drilling Driller Ron Lancaster <br />Observed by ERF Date Started 11-27-01 <br />Checked by RJH Date Completed 11-28-01 <br />SURVEY <br />DATUM NGVD <br />BL- 102 <br />PG. 1 OF 1 <br />Boring No. BL-102 <br />Location Paonia <br /> Colorado <br />Project No. 99292 <br />LENGTH OF SURFACE CASING ABOVE GROUND <br />SURFACE (FT) <br />LENGTH OF RISER PIPE ABOVE GROUND <br />SURFACE (FT) <br />ELEVATION <br />?f I L) <br />U <br />07 <br />0 <br />0 <br />Z <br />U) <br />Z <br />O <br />F- <br />0 <br />Z <br />O <br />U <br />J_ <br />O <br />J <br />W <br />Z <br />W <br />(`> <br /> <br />0-13.3 clay mostly <br />fines, 25-35% fine <br />grained sand <br />10-15% gravel <br />very stiff red <br />13.3-14.5 silty sand <br />mostly fine to <br />medium grained <br />sand, less than 15% <br />fines, red <br />14.5-19.5 silty clay <br />mostly fines, stiff, <br />15-30% very fine <br />to medium grained <br />sand, reddish brown <br />19.5-24.5 <br />Interbedded clays <br />and sands, similar <br />to 13.5-19.5 <br />24.5-34.5 <br />Interbedded <br />sandstone and <br />claystone I <br />sandstone = mostly <br />sand, medium <br />grained, moderately <br />Moderately friable I <br />claystone = mostly <br />fines, moderately <br />THICKNESS OF SURFACE SEAL BELOW <br />GROUND SURFACE, IF ANY (FT) <br />TYPE OF SURFACE SEAL (indicate any <br />additional seals) <br />ID OF SURFACE CASING (IN) <br />TYPE OF SURFACE CASING <br />DEPTH BOTTOM OF CASING (FT) <br />ID and OD OF RISER PIPE (IN) <br />TYPE OF RISER PIPE <br />DIAMETER OF BOREHOLE (IN) <br />TYPE OF BACKFILL AROUND RISER PIPE <br />DEPTH TOP OF SEAL, IF ANY (FT) <br />TYPE OF SEAL <br />DEPTH BOTTOM OF SEAL (FT) <br />DEPTH TOP OF PERVIOUS SECTION <br />TYPE OF PERVIOUS SECTION <br />44 DESCRIBE OPENINGS <br />I ID and OD OF PERVIOUS SECTION (IN) <br />?---- TYPE OF BACKFILL AROUND PERVIOUS SECTION <br />?r-r-- DEPTH BOTTOM OF PERVIOUS SECTION (FT) <br />?- DEPTH BOTTOM OF SAND COLUMN (FT) <br />ELEV./DEPTH TOP OF SEAL, IF ANY (FT) <br />TYPE OF SEAL <br />ELEV./DEPTH BOTTOM OF SEAL (FT) <br />TYPE OF BACKFILL BELOW PERVIOUS SECTION, <br />IF ANY <br />0.0 <br />0.0' Flush mount <br />0.0 <br />Portland Cement <br />Flush mount <br />0.8 <br />Flush joint PVC <br />3.8 <br />Portland Cement <br />15.5 <br />16x40 silica sand <br />16.5 <br />17.5 <br />PVC <br />10 Slot Machine cut <br />0.8 <br />10x20 silica sand <br />22.5 <br />24.5 <br />24.5 <br />Bentonite Chip <br />34.1 <br />NOTES: BL-102, piezometer only, did not have materials to complete with inclinometer <br />GEI Consultants, Inc. <br />ENGLEWOOD COLORADO