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Logan Wash Mine Annual Report <br />Permit No.: M-7977.424 <br />3.1 NPDES Outfall Sampling <br />Two NPDES outfalls, administered by the Colorado Department of Public Health and <br />Environment (CDPHE), were monitored in accordance with permit-established schedules. <br />Outfall 001 [Logan Wash Mine, main lower portal (L-1 Portal) discharge] and Outfall 002 <br />(Research Mine discharge) are to be monitored weekly for pH, flow rates, total dissolved solids <br />(TDS), and total suspended solids (TSS); monthly for TDS, TSS, pH, nitrate, sulfate, fluoride, <br />ammonia, COD, boron, oil and grease, and phenols; and quarterly for TDS, TSS, pH, nitrate, <br />sulfate, fluoride, ammonia, COD, boron, arsenic, copper, lead, oil and grease, and phenols. This <br />monitoring is required when mine-water drainage from Logan Wash mine reaches a flume on the <br />OOSI and BLM property boundary (Outfall 001), and when flow is present in the pipe conveying <br />mine water from the Research Mine (Outfall 002). <br />Sampling was not conducted at Outfall 001 during the reporting period because of no-flow <br />conditions at the designated outfall point. Sampling was also not conducted at Outfall 002 during <br />the reporting period due to no-flow conditions. <br />As previously reported, a concrete sack dam was constructed inside the portal of the Research <br />Mine in the spring of 2003. The dam contained a pipe outlet to allow for discharge from flooded <br />workings inside the mine. The pipe extended for approximately 60 feet to a point outside the <br />portal on the mine bench. The portal was later plugged with earth materials gathered from the <br />bench. The plug is approximately 35 feet thick between the concrete dam and portal. A vault <br />housing a valve and manometer on the discharge pipe was constructed outside of the portal to <br />allow for monitoring of head behind the dam and earth plug. During the reporting period no head <br />developed in the mine, i.e. the workings did not flood sufficiently to inundate the area near the <br />dam. Discharge Monitoring Reports were submitted to CDPHE as required. For further <br />information regarding the Research Mine portal closure, see Technical Revision No. 4 which <br />discusses significant revisions to Exhibit E, the Reclamation Plan for Logan Wash Mine. <br />3.2 Mine-Water and Retort-Water Discharge <br />Measurements of clean (non-retort) mine-water discharge and retort-water discharge were <br />conducted on a monthly basis when possible. These data were collected by GSHI to assess and <br />the evaluate mine closure effectiveness, and to support operation and maintenance of the <br />evaporation pond. <br />4.0 Reclamation Activities in 2004 <br />As part of reclamation activities in 2003, GSHI conducted hydromulch seeding of the "micro" <br />terraces on the Lower Dump face and on the Lower Bench, Upper Bench, and Research Mine <br />Portal closure area. This experimental attempt at revegetation was not successful as little new <br />vegetation was observed during the summer of 2004. It was suspected that the hydromulching <br />was not successful because of lack of soil cover on the seed, rocky conditions of the surfaces, and <br />some wind and water erosion. <br />Reclamation activities conducted at the Logan Wash Mine in 2004 included: <br />1. Revegetation. <br />Western Water 8 Land, Inc. 4 <br />