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TABLE 2.04.7 -1 <br />NEW HORIZON MINE <br />HYDROLOGICAL MONITORING PROGRAM <br />MONTHLY <br />QUARTERLY <br />SEMI- <br />ANNUALLY <br />ANNUALLY <br />NEW HORIZON 2 MINE <br />February, May, <br />August, Nov <br />February , <br />August <br />August <br />GW -N16P1 (Underburden) <br />Field (5) <br />Lab(6) <br />GW -N17P1 (Dakota Coal) <br />Field (5) <br />Lab(6) <br />GW -N18P1 (Overburden) <br />Field (5) <br />Lab(6) <br />GW -N39 (Alluvium) <br />Field(5) <br />Lab(6) <br />GW -N40 (Alluvium) <br />Field(5) <br />Lab(6) <br />GW -N41 (Overburden) <br />Field(5) <br />Lab(6) <br />GW -N42 (Coal) <br />Field(5) <br />Lab(6) <br />GW -N43 (Underburden) <br />Field(5) <br />Lab(6) <br />GW -N44 (Overburden) <br />Field(5) <br />Lab(6) <br />GW -N45 (Coal) <br />Field(5) <br />Lab(6) <br />GW -N46 (Underburden) <br />Field(5) <br />Lab(6) <br />SW -N102 (NPDES 007) <br />Field(2) <br />Lab(3) <br />NPDES 008 <br />Field(2) <br />Lab(3) <br />APPROVED HYDROLOGICAL MONITORING PROGRAM <br />Table 2.04.7 -1 summarizes various current approved monitoring sites. They are shown on Map <br />2.04.7 -1A. For New Horizon 2 Mine, the sites are based upon recommendations made by <br />Greystone Consultants and subsequent revisions requested by WFC.The monitoring plan <br />revised as per TR38 will be adequate for the Garvey and Burbridge leases included in the <br />permit boundary and other mining areas to the west - northwest that WFC intends to include <br />within the permit boundary in the near future. TR -47 resumes the monitoring of wells GW -N16, <br />GW-N17 and GW-N18. <br />Map 2.04.7 -1A shows the locations of surface stations and wells for the New Horizon Mine 2 <br />monitoring program. Modifications to the existing monitoring locations for surface and <br />groundwater are discussed below. All data will be reported in the annual hydrology report. <br />Map 2.04.7 -1A has been updated to distinguish among the active and non - active wells for both <br />New Horizon Mine areas #1 and 32. <br />Also, Attachment 2.04.7 -4 is included to provide the status and baseline data for all ground <br />water monitoring wells for both New Horizon 1 and New Horizon 2. <br />REVISED JULY 2006 <br />2.04.7 - 45 <br />