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l <br />• <br />• <br />RED CANYON MINE - 3 - September 3, 1985 <br />III. RECOMMENDATIONS FOR FUTURE AHR'S AND MONITORING <br />Next year, things which need to be included in the report include: <br />A. A larger map (1" = 1000' scale perhaps) detailing the locations of <br />the ground and surface water monitoring sites. This new map should <br />include the labeled locations of all monitoring sites, including the <br />Nelson Ditch and Spring No. 5 which are not included in the present <br />map. <br />B. Height of the casing at each well and piezometer, and ground surface <br />elevation. <br />C. Diagram depicting the water levels in the sediment pond and sediment <br />pond piezometers. This would best be shown as cross sections (drawn <br />to scale) for each quarter. Water level elevations need to be <br />included. <br />D. Potentiometric surface map overlying a contour map of the refuse <br />disposal area. <br />E. A rating curve should be constructed for the lower Ward Creek <br />station so that flow may be reported rather than the sites' gage <br />height. <br />F. Measurements of drainage basins should be done on the same day, <br />starting at the upstream site and working down. <br />G. Discharge measurements at Nelson Ditch should be made whenever <br />sampling is done. <br />H. Spring No. 5 should be visited on a regular basis and sampled as per <br />the permit requirements. <br />IV. STATUS OF MONITORING SITES <br />Following, is a brief summary of the Data presented in the AHR. <br />A. Ground Water - The coal seam piezometers (D-1, 2, 3; E-1, 2, 3; and <br />F-1) show no remarkable change. Changes in water levels in these <br />piezometers over the course of the year is most likely due to the <br />heavy precipitation of the last few years. The above average amount <br />of precipitation has generally caused the water levels to rise. <br />Shallower holes, especially F-1, show normal seasonal fluctuations <br />in water level. <br />The 'D' Seam water appears to be high in Total Dissolved Solids <br />(TDS) (specific conductivity of 3,000 to 4,000) and is <br />sodium-bicarbonate in nature. This water is surprisingly low in <br />sulfate (11.0 mg/1). The pH of this water is basic, ranging from <br />8.6 to 8.9. <br />