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.~ , i • <br />• <br />Page 10-83 First sentence, change "(more than adequate)" to "(_ _% above design requirements)", and check <br />paragraph # 8) to see if [his statement remains valid. <br />Page 10-85, last $, add `7 inches of pavement or chip and sea[. <br />Page 10-88, last paragraph, spelling of BB & 2700 Road <br />Attachments 2.05.4(2)(C)-1 & 3 <br />Trapezoidal channel widths of 15 feet for the Krill drainage channel and 30 feet for the San Miguel Power channel <br />are extremely difficult to install and maintain, therefore, a different approach for these stretches of channel design <br />may be appropriate. Please call me to discuss some alternate designs. <br />Rule 3.02.2(4) Adjustment of the Performance Bond <br />The current bond held by the applicant of $1,622,471 reflects the last permit term's worst-case scenario. With the <br />proposed changes in the mine plan, the worstcase scenario will significantly change thereby increasing the bond <br />liability. The Division requires WFC to submit a new bond estimate to include the following topics which, <br />depending on timing and changes in the mine plan, could affect the determination of the bond amount: <br />1. Restoration of BB and 2700 Road <br />2. Removal of BB/2700 Road detour <br />3. Telephone and power line removal and restoration <br />4. CCC Ditch restoration <br />5. Volume of cut and fill for worst-case pit disturbance <br />6. Amount and source of borrow-area to compensate shortages in the pit fill <br />7. Total vegetation disturbances <br />8. Pond removal <br />9. Equipment selection for new reclamation tasks <br />10. Haulage distances and slopes for worst-case equipment performance <br />Rule 4.05.6(11)(f), and $.05.9(5)(b) Stability Analysis of Ponds/Impoundment's <br />Please provide to the Division a demonstration that ponds 9 through 13 will meet the minimum static safety factor <br />of 1.3 in the form of an attachment [o the permit. <br />Should you have any questions regazding this matter or are in need of additional information, please contact me. <br />Sincerely. <br />~.1~ <br />B. RatMey\ <br />Environmental Protection S ecialist <br />Cc Murari Shrestha, Greg Lewicki <br />