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<br />Table 1 <br />Depth-To-Water (F[.) Magnesium <br />pH Sulfate <br />Temperature (oC) Iron <br />Conductivity Sodium <br />Total Dissolved Solids Bicarbonate <br />Calcium <br />Observations and historical data indicate that the producing coal seam and its <br />overburden have been essentially dry. In 1986, however, mining encountered <br />ground water resulting in this water being pumped to the surface and dischazged <br />to the west sediment pond. It is hypothesized that mining operations may be <br />dewatering an overlying perched aquifer, which are relatively common within <br />the Menefee Formation. It is possible, however, that some inflow from the <br />Pine Gulch drainage may have occurred. <br />Since that date, there has been no minewater discharge. If, however, mine <br />dewatering causes either of the two sediment ponds to discharge, National King <br />• Coal has committed to monitoring the parameters listed in Table 2 within 24 <br />hours after pond discharge at the alluvium well in Hay Gulch. The results will <br />be submitted to the Division with the regular quarterly monitoring submittal <br />(4.05.1(2)). <br />Table 2 <br />Depth to Water (Ft.) Potassium <br />pH Sodium <br />Temperature (oC) Sulfate <br />Conductivity Sulfide <br />Total Dissolved Solids Aluminum <br />Total Hazdness Boron <br />Carbonate Chromium <br />Bicarbonate Iron <br />Calcium Lead <br />Chloride Manganese <br />Fluoride Selenium <br />Magnesium <br />2. The applicant will conduct monitoring of surface water in a manner approved <br />by the Division. The monitoring plan was submitted under 2.05.6(3)(b)(iv) and <br />includes the following: (4.05.13(2)). <br />• <br />15 <br />