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Logan Wash Mine Annual Report <br />Permit No.: M-1977-424 <br />pressure transducer. On-site monitoring is conducted twice monthly as access conditions allow. <br />Figure 4 shows the pressure transducer water depth results for the period January 2010 to January <br />2011. <br />4.0 Reclamation Activities in 2010 <br />Reclamation activities conducted at the Logan Wash Mine in 2010 are discussed in the following <br />sections. <br />4.1 Revegetation Maintenance <br />During the reporting period the irrigation system for planted saplings on the Upper and Lower <br />Mine Dumps was not deployed. General inspections of plant mortality and overall cover were <br />conducted. <br />4.2 Well Abandonment <br />No monitoring wells were abandoned during the reporting period. <br />5.0 Maintenance Activities <br />Maintenance activities included periodic inspections of mine roads, portals, mine water drainage <br />systems associated with the retorts and general mine workings, as well as the inspection of <br />Evaporation Pond facilities including the pond's security fencing, operation, and leak detection <br />system. Maintenance activities conducted at the mine and Evaporation Pond are summarized in <br />the following sections. <br />5.1 Mine Maintenance <br />During the reporting period, OOSI inspected the Logan Wash Mine site on a weekly to monthly <br />basis during April through December. The upper mine facilities are usually not accessible from <br />December through March due to deep snowpack and poor road conditions. Inspections focused <br />on mine roads, headwalls, portal closures, bench surfaces, dump faces, constructed storm <br />drainage and rip-rap channels. Mine water discharge rates and Evaporation Pond water levels <br />were periodically monitored and recorded (Section 3.2). Snow removal was conducted on <br />November 22, 2010 in order to access the Lower Bench to conduct retort and mine water <br />sampling. Road maintenance activities included grading of the running surface and constructing <br />and maintaining runoff ditches and waterdips is typically conducted in the spring and summer <br />months or after major storm events. <br />5.2 Evaporation Pond Maintenance <br />Maintenance of the Evaporation Pond included inspection of (1) discharge rates to the pond from <br />the mine retort plumbing system, (2) the leak detection vault, (3) wildlife security fence, (4) storm <br />drainage ditches, and (5) general conditions of the pond, liner, and egress ladders. Repairs were <br />conducted when needed. Pond liner repairs were conducted on April 14, 2010. <br />6.0 Anticipated Reclamation in the Year 2011 <br />Because the fate of mine water discharge is being assessed under Amendment No. 1, OOSI does <br />not anticipate reclamation of any roads or disturbed surface areas at the mine site in 2011. <br />However, Wells LW-32 and LW-116 will likely be abandoned in 2011. <br />Western Water & Land, Inc. 6