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9720 <br />- 9715 <br />9710 <br />9705 <br />9700 <br />9695 <br />9690 <br />P -1 P -4 <br />EL.= 9719 EL.= 9718 <br />15/I <br />1 19/12 K AVG.= 5000 FT /YR <br />(PERMEABLE GRAVEL LENS) <br />50/12 <br />r <br />r <br />r r <br />r <br />K AVG.= 30 FT /YR <br />(2 HOUR TEST ONLY) <br />K AVG. = 230 FT /YR <br />'( AVG.= 210 FT /YR <br />P -2 P -3 <br />EL.- 9713 EL.- 9716 <br />- 7 <br />;::;3 50/7 <br />r <br />P.' <br />•i <br />42/12 <br />•i <br />28/12 <br />• <br />y. 50/9 <br />50/3 <br />28/1 <br />50/9 <br />:7K AVG. - 2 FT /YR <br />AVG.= 7 FT /YR <br />b <br />LEGEND: <br />NOTES: <br />SUMMARY LOGS OF PIEZOMETER HOLES <br />El CLAY, STIFF, SANDY, GRAVELLY, MOIST, RED -BROWN (CL) <br />GRAVEL, DENSE, VERY CLAYEY, VERY SANDY, MOIST, <br />RED -BROWN (GC) <br />Ei SAND, DENSE, VERY CLAYEY, GRAVELLY, MOIST, <br />RED -BROWN (SC) <br />DRIVE SAMPLE. THE SYMBOL 15/12 INDICATES THAT 15 BLOWS <br />OF A 140 POUND HAMMER FALLING 30 INCHES WERE REQUIRED <br />TO DRIVE A 2.5 INCH O.D. SAMPLER 12 INCHES. <br />K AVG. INDICATES AVERAGE PERMEABILITY MEASURED <br />I. PIEZOMETER HOLES WERE DRILLED MARCH 15 AND 16, 1990 WITH <br />A 6-INCH DIAMETER CONTINUOUS FLIGHT ALGER. <br />2. PIEZOMETER HOLE ELEVATIONS ARE. APPROXIMATE AND WERE TAKEN <br />FROM MAP FURNISHED BY LEADVILLE MINING AND MILLING CORP. <br />3. PIEZOMETER HOLES WERE CASED WITH 4 -INCH INSIDE DIAMETER <br />PLASTIC WELL SCREEN AND THE ANULAR SPACE GRAVEL PACKED TO <br />PREVENT CAVING DURING THE TEST. ALL TESTS RUN OVER -NIGHT <br />EXCEPT P -4. <br />4. THESE LOGS ARE SUBJECT TO THE EXPLANATIONS, LIMITATIONS <br />AND CONCLUSIONS AS CONTAINED IN THIS REPORT. <br />JOB N0,16,768 <br />FIG. 2 <br />