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NUCLA PR NO. 2 <br /> orientation used in the model (perpendicular to the regional ground <br /> water flow gradient) represents a maximum impact scenario. This mine <br /> pit orientation will maximize the effects of mine pit dewatering on the <br /> San Miguel River. Changes in the location of the pit within the permit <br /> area should not significantly affect the model calculated effects on <br /> river flow. The pit orientation, however, is important to the model <br /> results. <br /> The no flow boundary designation, shown on Figure 17-1 has been added <br /> onto Figure 17-2 to help clarify that the modified grid on Figure 17-1 <br /> applies to the entire area represented on Figure 17-2. Only the smaller <br /> grids in the center of Figure 17-1 represent the mine pit. <br /> Tab 8 - Climatological Information <br /> Comment: <br /> 1. The revised write up with the new format allows for much easier <br /> review of this section. <br /> Also, the Division is encouraged that Peabody has installed a rain <br /> gauge at Nucla East. Such on-site data collection will be very <br /> useful and can be used to support the statement made on page 8-3 of <br /> "It should be stressed that these stations may not accurately <br /> represent the condition at the Nucla Mine. <br /> Response: <br /> No response necessary. <br /> Tab 9 - Soil Resources Survey <br /> Comment: <br /> 1. Attachment 9-5 presents the Baseline Soil Survey for the Nucla East <br /> area. The September 18, 1987 letter from the Soil Conservation <br /> Service (SCS) , found on pages 9-5-22 and 9-5-23, states that Bar X <br /> soils are designated by two symbols, 70B and D70B, encompassing a <br /> total of 173.0 acres. A review of new Exhibit 9-3 reveals that the <br /> Bar X soil symbolized by 70B is located in the west portion of the <br /> study area outside of the proposed permit area; Bar X soil <br /> symbolized by D70B is within the proposed permit area on the <br /> southeast side. The text on page 9-5-22 under "Prime Farmland <br /> Determination" specifies that there are 153 acres of prime farmland <br /> in the study area. The Division cannot find any reason to not <br /> consider the Bar X soil symbolized by D70B as prime farmland. <br /> While documentation is provided to support the disturbed nature of <br /> the D70B Bar X soils due to land leveling activities , these <br /> activities have done nothing more than assist this area to be <br /> better utilized. Telephone inquiries made by the Division to the <br /> SCS indicated that land leveling activities ordinarily would not <br /> 8 <br />