Laserfiche WebLink
M= N R E C, S N C. <br />743 HORIZON COURT, SUITE 205 <br />CRAND JUNCTION, CO 81506 <br />TELEPHONE (303) 245-4101 <br />BLUE RIBBON MINE <br />III IIIIIIIIIIIII III <br />sss <br />JUhJ 2 0 139t, <br />MIVEU tfvy~, <br />~EC± AMAT~Or~ fY~~~ <br />June 16, 1990 <br />Matthew S. Hayes <br />Mined Land Reclamation Division <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Re: Semiannual Bench Hydrologic Monitoring; <br />Permit C-81-047 <br />Dear Mr. Hayes: <br />The follow tables present the results of hydrologic monitoring on <br />the restabilized mine bench for the first and second quarter of <br />1990: <br />RESTABILIZBD BENCH UNDERDRAINS <br />NORTH MIDDLE SOUTH <br />Date: 3-18-90 <br />Flow (gpm) 0.004 DRY 0.01 <br />Ph 8.5 --- 8.5 <br />Conductivity 2300 --- 4600 <br />Temperature 6~C --- 4~C <br />Date: 6-15-90 <br />Flow (gpm) Dry Dry 0.004 <br />Ph --- --- 8.0 <br />Conductivity --- --- 5300 <br />Temperature --- --- 18~C <br />Date: 3-18-90 <br />Depth to Water <br />Date: 6-15-90 <br />Depth to Water <br />BENCH PIEZOMETERS <br />P-1 P-2 P-3 P-4 P-5 P-6 <br />12.8 42.7 49.6 25.4 23.4 10.8 <br />16.7 47.7 49.2 25.7 23.0 9.7 <br />