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Logan Wash Mine Annual Report <br />Permit No.: M-1977-424 <br />drainage pipeline from the Research Mine to the top of the stormwater channel on the northern <br />portion of the Lower Bench (see Technical Revision No. 6). This work was done to locate both <br />outfalls in the upper part of Dry Gulch, so that the monitoring requirement at the downstream <br />flume would apply to both outfalls. This work was verbally approved by CDPHE. <br />Sampling was not conducted at Outfalls 001 and 002 during the reporting period because of no- <br />flow conditions at the designated outfall point (flume). Quarterly NPDES Discharge Monitoring <br />Reports were submitted to the CDPHE for Outfalls 001 and 002 during the reporting period. <br />For more information regarding the Research Mine portal closure and management of the <br />Research Mine drainage see Technical Revision (TR) No. 4 and TR No. 6 which present <br />significant revisions to Exhibit E, the Reclamation Plan for Logan Wash Mine. <br />3.2 Mine-Water and Retort-Water Discharge <br />Discharge measurements of clean (non-retort) mine-water discharge (Outfalls 001, and 002) and <br />retort-water discharge were conducted on a quarterly basis when possible. These data were <br />collected by OOSI to assess and evaluate mine closure effectiveness and to support operation and <br />maintenance of the evaporation pond. <br />Sampling of retort mine drainage water and mine water (Outfall 001) was conducted in October <br />2008 to evaluate retort water quality and contribute to long-term trend analysis. The samples were <br />collected from the retort drainage pipelines inside the Lower Bench Vault. The analytical results <br />do not indicate a significant improvement of retort water compared to past sampling events. <br />3.3 Research Mine Manometer Monitoring <br />The manometer installed in the Research Mine Vault is monitored and recorded on a weekly basis <br />in the spring months of April, May and June, and at least quarterly at all other times. If <br />manometer measurements were to indicate a very high (> 36 inches) reading for more than a <br />week's time, the water in the mine can be released and sampled according to the NPDES <br />schedule. The highest level recorded in 2008 was 22.5 inches. <br />4.0 Reclamation Activities in 2008 <br />Reclamation activities conducted at the Logan Wash Mine in 2008 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 were conducted. <br />4.2 Well Abandonment <br />During the reporting period, no monitoring wells were abandoned. <br />Western Water & Land, Inc. 5