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107 <br />pond 004. This site predominately handles runoff from the development waste <br />pile located south of Highway 12. <br />NE -005: Grab sample of the discharge from the primary spillway of sediment <br />pond 005. Pond 005 no longer exists as it was reclaimed. <br />NE -007: Grab sample of the discharge from the primary spillway of sediment <br />pond No. 007 (stormwater and industrial runoff from the eastern portion of the <br />facilities area). <br />NE -008: A grab sample location at the primary spillway outfall of pond 008 <br />located below the Refuse Disposal Area (RDA). <br />PAW -1: A sample from an alluvial well located in the Purgatoire river alluvium <br />adjacent to PRS -1. This sample station was established to monitor water quality <br />above the existing coal development waste pile (DWP). <br />PAW -la: A sample from an alluvial well located in the Purgatoire River alluvium <br />between the DWDA #3 located at the West Mine area, and the river. The well <br />will be drilled and completed to the depth of the alluvium/bedrock interface. This <br />sample station was established to monitor water quality down gradient from a <br />new development waste disposal area, as approved under TR -65. <br />PAW -2: A sample from an alluvial well located adjacent to the Purgatoire River <br />approximately 200 yards downstream of PAW -1. This sample was established to <br />monitor waster quality down gradient from the DWP at the New Elk Mine. <br />PAW -3: A sample from an alluvial well located adjacent to the Purgatoire River <br />approximately 300 yards downstream of PAW -2. In March of 1985, 500 feet of <br />the Middle Fork of the Purgatoire River was diverted to the north to create <br />additional room for the coal stockpile at the New Elk prep plant. As the diversion <br />was cut through existing refuse disposal area, two alluvial wells, PAW -3 and <br />PAW -4 were established to monitor water elevation and chemical parameters. <br />The wells were cased with 18 inch galvanized CMP and completed in the cobble <br />and gravel fill of the channel. Total depth of PAW -3 is approximately 20 feet <br />from the top of the casing. The well was established in the backfilled channel <br />during the diversion of the river. It was established to monitor the quality and <br />water level of the area immediately upstream (west) of the diversion project. <br />PAW -4: A sample from an alluvial well located adjacent to the Purgatoire River <br />approximately 100 yards downstream of PAW -3. The well was established in the <br />backfilled channel during the diversion of the Purgatoire River. Total depth of <br />PAW -4 is approximately 15 feet from the top of the casing. It was established to <br />monitor the quality and quantity of water movement into the downstream (east) <br />end of the diversion. <br />PAW -8: A sample from an alluvial well located below the Refuse Disposal Area. <br />Section 2.05 RN -6 Repaginated 10/21/16 <br />