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_ ~~ 2 • <br />C <br />PERMIT APPLICATION RENEWAL COMMENTS <br />ITEM V. VI. VII <br />Ground water and Surface Water Hydrology <br />and Probable Hydrologic Consequences: <br />#2: Data collected in the 1985 drilling program hae been attached ae <br />Attachment "A" hereto. <br />#3: The data for the AHR has been included as Attachment "B" hereto. <br />#4: During the last four years there has been one discharge from the No. <br />2 Sediment Pond. This discharge was in compliance with the NPDES <br />discharge Permit. PCI feels that this lack of discharges indicates <br />that the surface drainage from the Carbon Junction Mine is <br />insignificant to the Carbon Junction Drainage. <br />#5: As shown in the data from Attachment "B" hereto, there is nothing <br />in the AHR data to indicate any quantifiable or identifiable impacts. <br />Durango and surrounding areas have generally experienced subnormal <br />rainfall for the last four years. No ground water has been <br />intercepted by the current pit activity. No springs have been <br />affected by the mining to date. <br />#6: The requested plan has been attached hereto as Attachment "C". <br />#9: No pit inflows have been experienced to date. The mining hae not <br />progressed to the depths for which water inflows are expected. <br />X. TOPSOIL <br />#14: The volume of the topsoil material currently held in topsoil piles <br />are as follows: <br />TS Pile #2 - 32,800 <br />TS Pile #3 - 18,300 <br />TS Pile #4 - 117,100 <br />TS Pile #7 - 80,000 <br />TS Pile #8 - 32,000 <br />TOTAL 280,200 <br />The total disturbance for the entire mine area (including topsoil <br />piles) is currently 138 acres as calculated from the manuscripts <br />generated by Air Photo Surveys. Table 5.3 will be revised to reflect <br />these actual numbers. (See Attachment "D" hereto). <br />