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DMG. <br />• Once the monitoring of new wells begin, monitoring of the existing wells GW-N16, GW- <br />N17, GW-N18, GW-N36, GW-N37 and GW-N38 in New Horizon 2 Mine will be <br />suspended. However, these wells will be kept open and ready to resume monitoring <br />when New Horizon Mine applies for a Phase 3 bond release of the area monitored by <br />these wells in order to collect data required by DMG. In June of 2002, the DMG <br />requested that monitoring begin again on wells GW-N16, GW-N17 and GW-N18. <br />• Continue monitoring of two alluvial wells GW-N39 and GW-N40. The upstream alluvial <br />well is located in the flood plain near Lincoln Street in the southeast corner of the mine <br />while the downstream alluvial well is located down gradient of the mine but upgradient of <br />the Nucla wastewater lagoon in Calamity Draw. <br />• Well GW-N30 and GW-N34 have been mined out. <br />• Peabody has abandoned Wells GW-N29, GW-N32 and GW-N33 shown in Map 2.04.7- <br />1A in the past. <br />• Attachment 2.04.7-2 contains well completion diagrams for Ground Water Monitoring <br />Wells 41-46. <br />• Since much of the New Horizon 1 ground has met the Phase 3 bonding requirements <br />and has been released to its' owners, TR-47 modifies Table 2.04.7-1 reflect the <br />elimination of many of the surface and groundwater monitoring sites. <br />Wells are monitored on a monthly basis for water levels. These levels are adjusted to mean sea <br />elevation. Water quality samples, when collected, will be analyzed for the parameters listed in <br />Table 2.04.7-, which also gives the frequency of water level monitoring, sampling and analysis. <br />0