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zoos <br />NE-033: A grab sample station from the sewage treatment plant intake and discharge. Because the <br />mine was inactive throughout the year, the sewage treatment plant was not operated and <br />no discharge occurred. <br />Alluvial Wells <br />Location, surface elevation, total depth, zone of completion, and monitoring purpose are provided <br />for all wells in Table 1.2-3. <br />PAW-1: A dip sample from an alluvial well located to the south of the Purgatoire River in <br />alluvium adj acent to PRS-1. This sample station was established to monitor water quality <br />above significant mining activity. Data collected at this station during this year are <br />presented in Table A-6. Data (annual minimum, maximum, mean) from 1984 to date aze <br />presented in Table A-7. <br />PAW-2: A dip sample from an alluvial well located to the north of and adjacent to the Purgatoire <br />River approximately 200 yards downstream of PAW-1. This sample station was <br />established to monitor water quality down gradient from the underground coal <br />development refuse pile at the New Elk Mine. Data collected during this year at this <br />station are presented in Table A-8. Data (annual minimum, maximum, mean) from 1984 <br />to date are presented in Table A-9. <br />PAW-3: A dip sample from an alluvial well located to the north of and adjacent to the Purgatoire <br />River approximately 300 yards downstream of PAW-2. During March and April of 1985, <br />500 feet of 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 Preparation Plant. The diversion <br />was cut through an existing refuse disposal area. PAW-3 was established to monitor the <br />quality and quantity of water movement into the upstream (west) end of the backfilled <br />channel. Monitoring of this station was eliminated in 1999 with elimination of the <br />diversion survey. <br />PAW-4: A dip sample from an alluvial well located to the north of and adj acent to the Purgatoire <br />River approximately 100 yards downstream ofPAW-3. The well was established in the <br />backfilled channel during the diversion of the Purgatoire River. It was established to <br />monitor the quality and quantity of water movement into the downstream (east) end of <br />the diversion. Monitoring of this station was eliminated in 1999 with elimination of the <br />diversion survey. <br />626-Annual Hydrolic Moni[aing (Apr.9.02).dce <br />April 17, 2002 <br />