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<br />' TABLE 2-1 <br />' SURFACE WATER OUALITY PARAMETERS <br />AND <br />' ALLUVIAL MONITORING HOLE WATER QUALITY PARAMETERS <br /> LLD MEASUREMENTS LABORATORY ANALYSIS <br /> <br /> Discharge Ammonia Potassium <br /> pH Bicarbonate Selenium, Total <br />' Specific Conductance Boron Sodium <br /> Temperature Calcium Sulfate <br />' Carbonate Total Suspended Solids <br /> Chloride Total Dissolved Solids <br /> Copper, Total Total Volatile Solids <br />' Fluoride Sodium Adsorption Ratio <br /> Iron, Total <br /> Lead, Total <br /> Magnesium <br />' Manganese, Total <br /> Nickel, Total <br /> Nitrate <br /> <br />' Upper Sandstone Facies; the Coal and Siltstone Facies; and the Lower Sandstone Facies. The <br />Upper Sandstone Facies, Coal and Siltstone Facies, and Lower Sandstone Facies are referred <br />to as upper, middle and lower respectively as a matter of simplicity. The Deserado Mine coal <br />' seams are located near the bottom of the Coal and Siltstone Facies (middle zone). Water levels <br />are measured quarterly in the sixteen (16) groundwater monitoring holes. The water level is <br />' measured monthly in OAL-5, and samples are analyzed quarterly for the twenty lwo water quality <br />parameters listed in Table 2-1. <br />' The new alluvial monitoring hole, RM-1, was drilled east (downstream) of the pond for Refuse <br />Disposal Area 2J3 on September 28, 1989. The location of this hole is shown on Plate 1. This <br />' monitoring hole was drilled to fulfill a requirement of the mine permit that had been overlooked <br />during the first term. The requirement was discovered during the permit renewal process in early <br />1989. RM-1 was drilled to bedrock at a depth of 32 feet. No water was encountered during <br />' drilling. The hole was drilled with seven-inch hollow flight augers and cased with perforated iwo- <br /> <br />4 <br />1 <br />