Laserfiche WebLink
Logan Wash Mine Annual Report <br />Permit No.: M-1977-424 <br />Table 4.2010 Logan Wash Mine Site Monitoring Results <br /> Outfall002 Outfall001 Upper Lower <br /> Manometer (L-1 Portal) Manhole Manhole Comments <br />Date Level inches m m m <br />1/27/10 nm nm nm nm Pond leak detection sump has <br /> 4.4 ft of water <br /> <br />2/11/10 nm nm nm 2.48 0.91 gpm combined flow <br /> from 3 detection pipes and <br /> declining <br /> Lower Bench snow depth is <br /> 1.45 ft. Flow of 0.13 gpm <br />2/18/10 0 2.93 1.35 2.29 from pond east detection pipe <br /> only <br />2/24/10 nm nm nm 1.93 No flow in pond detection <br /> vault pipes <br />3/2/10 nm nm nm 2.14 No flow in pond detection <br /> vault pipes <br />3/10/10 nm nm nm 2.10 No flow in pond detection <br /> vault pipes <br />3/18/10 nm nm nm 2.06 <br />4/14/10 No access due to No access 2.02 2.14 Liner repaired by H & H <br /> snow drifts due to snow Environmental, Inc. <br /> drifts <br />5/25/10 0 3.45 1.77 2.23 <br />6/2/10 0 3.45 1.86 2.44 Sample retort and 001 water <br />6/15/10 0 3.21 2.06 2.28 <br />7/16/10 0 3.65 1.83 2.07 <br />7/30/10 0 3.17 1.91 2.07 <br />8/12/10 0 3.12 1.76 1.85 <br />9/3/10 0 3.29 1.95 1.56* Vac pumped upper and lower <br /> sumps and 2 others; *flow <br /> possibly affected <br />10/06/10 0 3.47 1.87 2.10 <br />11/22/10 0 nm 1.93 2.34 Snow depth - 10 inches <br />1/26/11 nm 3.12 1.99 2.07 Snow depth 14.75 inches at <br /> Lower Access Road <br />3/11/11 nm 3.23 2.00 2.36 Snow depth 15 inches on <br /> Lower Bench <br />Notes: nm = not measured. <br />Western Water & Land, Inc. 10