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Marcia Talvitie <br />September 9, 2011 <br />Page 2 <br />Se and Mo. Also the data shown on Table 2.04.62 (page 10) do not match the information <br />presented on Appendix Table 2.04.6 -2 for Hg, Mo, and Se. On Table 2.04.6 -2 the sample <br />results are listed as soluble but they appear to be the total fraction. Please clarify these <br />discrepancies and ensure that there is consistency between Table 2.04.6 -2 and Appendix <br />Table 2.04.6.2. <br />At the top of the second page of Appendix Table 2.04.6 -2 the column for NHN11 -3 data is <br />incorrectly labeled NHN11 -1. Please correct this if appropriate. <br />S. The Division requested that the analytical laboratory reports for the data presented in <br />Table 2.04.6 -2 for the five (5) overburden sample holes (1 C, 3C, 695E, 697E and 775E) <br />for which data are provided from New Horizon 1 Mine Area be included as an Appendix <br />to the NHN permit application. These data were not provided in Appendix 2.04.6 -4 as <br />indicated in WFC's response. If available, please include the laboratory reports as <br />originally requested. <br />9 -10. Responses accepted. <br />2.04.7 Hydrology Description <br />2.04.7(1) <br />1. WFC did not correct the statement on page 2 as requested. Please correct the statement on <br />page 2 as follows: "Typical completion diagrams one each for the overburden, coal zone, <br />and underburden well completion monitoring zones are provided in Figure 1 of Appendix <br />2.04.7 -1." <br />2. WFC did not incorporate the information as requested. Table 1 in Appendix 2.04.7 -1 has <br />not been changed. The application should contain the specific well completion information <br />for each of the nine new monitoring wells. Table 1 in Appendix 2.04.7 -1 is titled "Proposed <br />Ground Water Monitoring Hole Locations and Depths" and contains "Estimated Monitoring <br />Hole Depths ". This table should be replaced since the wells have been drilled and <br />constructed. Please add a well completion information table to Appendix 2.04.7 -1 that at a <br />minimum contains the following information for each monitoring well: well <br />identification/location, formation monitored, total depth, well casing type and diameter, <br />ground elevation, casing stickup or measuring point elevation, and slotted interval. <br />3. Response accepted. <br />4. Response is accepted; however the reference to Appendix 2.04.7 -2 is incorrect and should <br />be changed to Appendix 2.04.7 -1 in the second paragraph of revised page 5 (at 2 locations). <br />5 -6. Responses accepted. <br />7. The Division identified the need for additional downgradient groundwater monitoring <br />