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Further relevant discussions to the hydrologic regime of the expansion area will be <br />covered in the 2013 Annual Hydrology Report, including extended Water -Level <br />Elevation maps depicting the extent of subsurface water and overall geologic <br />trends. <br />ii. Division's Response: Trapper's Permit section 2.7.5; Pre - Mining Conditions — <br />Ground Water, indicates baseline investigations covered the western portion of the <br />permit area, i.e. the area from Pyeatt Gulch west. In 1985, baseline information <br />was collected to cover the eastern portion of the permit area, i.e. Pyeatt Gulch and <br />the area to the east. Specifically, Sections 2.7.5.1 and 2.7.5.1 a, Sections 2.7.5.2 <br />and 2.7.5.2a as well as Sections 2.7.5.3 and 2.7.3a, contain the baseline <br />groundwater information for the current permit area. The sections with an (a) at <br />the end of the section number covers the eastern permit area. Trapper's response to <br />the first adequacy review indicates that there are changes to the groundwater <br />regime within the expansion area, though not dramatic. The response also <br />indicates relevant groundwater information will be updated with the annual <br />hydrology report. Baseline groundwater information should be included in permit <br />section 2.7.5 that currently contains this information and not solely in the Annual <br />Hydrology Report. Prior to the approval of PR7, Trapper will need to add <br />information about the ground water regime required in Rule 2.04.7(1)(a) to the <br />permit section 2.7.5 which contains the baseline groundwater information. At this <br />time, this item remains outstanding. <br />iii. Trapper's Response #2: Please see the attached permit pages (2 -4144 2- <br />414., 2 -520ww to 2- 520zz, 2- 520aaa to 2- 520zz, 2- 520aaaa to 2- 520gggg, and <br />2 -523y) updating Sections 2.7.5.1, 2 and 3 with new sub - sections and data <br />addressing baseline groundwater information in the eastern expansion area. <br />Map series M54 has also been updated with current ground water elevations <br />for the entire mine including the permit expansion area. <br />b. For the expansion area please update the surface water information contained in permit <br />section 2.7.4 with the information required from Rule 2.04.7(2)(a) and (2)(b)(i). <br />Trapper's Response: The surface water regime of the expansion area is similar to <br />the existing permitted mine area. Enclosed Table 2.7 -12 of section 2.7.4 has been <br />updated with new information in regard to the expansion area. The remaining <br />discussion within section 2.7.4 is still applicable to the expansion area. Enclosed <br />revised Map M -51 (sheet 3) and Map M -31 (included in the original PR -7 <br />submittal) depict relevant surface water courses and surrounding water resources in <br />the area. Prior studies and information gathered on the characteristics of the <br />surface water regimes of the Williams Fork Mountains would pertain to the <br />expansion area. Trapper will submit additional relevant information as needed <br />once monitoring of the affected drainages is conducted. <br />ii. Division's Response: The minimum surface water information required in <br />accordance with Rule 2.04.7(2)(b)(i) is the minimum, maximum and average flow <br />which identify critical low flow and peak discharge rates of streams sufficient to <br />identify seasonal variations. Trapper has identified two additional subdrainage <br />basins within the expansion area; Deacon and Jeffway. For surface water within <br />these subdrainage basins, Trapper will need to submit the information required by <br />