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Sandstone. The perched water below the D -Seam and above the B -Seam is <br />or was monitored by drill holes D -58a and DH- 67- D -Blw. The quality of water <br />in this perched water being zone, as reported in the 2007 AHR show pH in <br />the range of 7.8 to 11.6, conductivity ranges from 485 to 5030 umhos /cm <br />and total recoverable iron ranges from 0.03 to 31.4 mg /I. Based on the <br />quality of the mine water discussed above, mine water seepage into the <br />perched water below the D -Seam and above the B -Seam would improve the <br />water quality in the perched water bearing zones. <br />The perched water above the D -Seam is or was monitored by drill holes D- <br />58, 66 and DH- 67- D -Abv. The quality of water in this perched water being <br />zone, as reported in the 2007 AHR show pH in the range of 6.9 to 13.5, <br />conductivity ranges from 652 to 5500 umhos /cm and total recoverable iron <br />ranges from 0.08 to 17.7 mg /I. Based on the quality of the mine water <br />discussed above, mine water seepage into the perched water above the D- <br />Seam would improve the water quality in the upper perched water bearing <br />zone. <br />(3)(b)(iv) <br />Hydrologic Monitoring Plan <br />The following monitoring plan is designed to provide data which will verify the <br />Bowie No. 2 Mine will not have significant adverse impacts on the surface or <br />subsurface water which is within or adjacent to the permit area. The <br />hydrologic monitoring locations, shown on Map 9 are: <br />Springs will be monitored quarterly. Depending on weather conditions, the <br />first quarter monitoring event may be delayed until April or May. Field <br />parameters will be measured each quarter and a full suite sample will be <br />obtained each quarter from all springs which have a flow of five gallons per <br />minute or more. <br />Stock Ponds will be monitored quarterly. Depending on weather conditions, <br />the first quarter monitoring event may be delayed until April or May. The <br />following information will be collected for the ponds; 1) inflow; 2) outflow; and <br />3) water level below spillway outlet or depth of water in pond measured from <br />the bottom of the pond. <br />0 <br />PR -12 2.05-116 11/10 <br />APP2ou <br />I I/16//a <br />