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<br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br />1 <br /> <br /> <br />HYDROLOGIC MONITORING REQUIREMENTS FOR 1998-1999 <br />DESERADO MINE -PERMIT NO. C-81-018 <br /> Monitoring Sample <br />Well Site Piezometer No. Monitored Stratum Frequency Parameters <br />Ground Water: <br />QAL-5 N/A White River Alluvium Quarterly Depth-to-water, pH, cond., Temp. <br /> Annual Full Suite (Attachment A) <br />21012-17 2-17U Upper Sandstone Fades Annual Depth to water only <br /> 2-17L Lower Sandstone Facies Annual Depth to water only <br /> TW2-17M Siltstone 8 Coal Fades Annual Depth to water only <br />31012941 29-4U Upper Sandstone Fades Annual Depth to water only <br /> 29-4M Lower Sandstone Facies Annual Depth to water only <br />2101420 420U Upper Sandstone Fades Annual Depth to water only <br /> 420E Lower Sandstone Facies Annual Depth to water only <br />310130-81 30-8U Upper Sandstone Facies Annual Depth to water only <br /> 30-8M Siltstone & Coal Fades Annual Depth to water only <br />310131-71 31-7m Siltstone & Coal Fades Annual Depth to water only <br />310132-71 32-7U Upper Sandstone Fades Annual Depth to water only <br /> 32-7M Siltstone 8 Coal Fades Annual Depth to water only <br /> 32-7L Lower Sandstone Fades Annual Depth to water only <br />310133-81 338U Upper Sandstone Facies Annual Depth to water only <br /> 338M Siltstone 8 Coal Fades Annual Depth to water only <br /> 338E Lower Sandstone Fades Annual Depth to water only <br />I~i~ <br />`"~ <br /><~ <br />1 These holes will be sampled and analyzed prior to mining through or bond release. Sampling will be limited to the middle <br />facie zone. <br />' NOTE: All surface water monitoring has been discontinued since DMG's approval of the amendment in August 1997 (fR47). <br /> <br /> <br />1 <br /> <br /> <br /> <br />A-1 <br />1 <br />