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COLORADO GOLDFIELDS INC. RESPONSE <br />DRMS DEFICIENCY LETTER DATED SEPTEMBER 21, 2011 <br />NOI P- 2011 -027 <br />Deficiency Issue 1: Description of Pre - existing (pre - permit) Disturbances. <br />Pre - existing disturbances consist of pre -law (1976) on site disturbances including: <br />1. Site Access Road and Bridge over the Animas River. <br />See Exhibits D, and F. <br />2. On -site Roads <br />See Exhibits D, E, F, H, I, J, and K. <br />3. Mine Dumps — upper dumps at portal level and large dump below old log cribbing. <br />See Exhibits D, E, F, J, K, and L. <br />4. Mine buildings including long building on the portal level (to the north of the portal area) containing <br />sections for air compressors, change room and shop area; and, ore bin /change room located <br />approximately 50 feet in front of the portal and supported on the upper mine dump. <br />See Exhibits D, E, H, J, K, and L. <br />5. Two electric air compressors located in compressor section of mine building. <br />See Exhibit E (north end) and K. <br />6. Remains of old snowsheds — of both steel frame and timber frame with galvanized iron covering. <br />See Exhibit J, and K. <br />7. Remnants of old boards and timbers from previous operations. <br />See Exhibits I, J, K, and L. <br />8. Remnants of old ventilation piping and other piping and mining equipment /materials. <br />See Exhibits I, J, and L. <br />9. Access Bridge over Animas River — old timber bridge. <br />See Exhibit D, and F. <br />10. Remnants of old mill building between the toe of the upper and lower dumps and the Animas River. <br />See Exhibits D and E. <br />Pre - existing (pre - permit) disturbances after 1976 including: <br />11. Sedimentation Pond and associated piping (CDPHE 319 Grant Project). <br />See Exhibit G and H. <br />11. Remains of bio- reactor poly tank containment vessels (8) — experimental passive treatment system <br />for mine discharge water (CDPHE 319 Grant Project). <br />See Exhibit N. <br />