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<br />~. <br />pile, with a notch and sedimen[ control structure in the notch at the dotivn gradient point <br />of the stockpile. Please revise ttilap 36 accordingly, if appropriate. <br />The Division has no further concerns. Interim sediment control measures aze already <br />described in the approved permit application on page 2.05-49. In addition, Map 36 was <br />revised to state that a berm around a topsoil stockpile would have a notch and straw bale <br />installed at the down gradient end. <br />4. The discussion on proposed revised page 1.0~-25 concerning the discussion of the <br />Freeman Gulch vent shaft construction may need to be revised later to mach the actual <br />field conditions. <br />BRL noted the comment. <br />S. In the cover letter to the submittal, BRL states that the typical vent bore hole pad design <br />does not include an upland diversion ditch due to the expected low curve numbers of the <br />upland undisturbed areas. The Division and BRL will need to monitor this situation in the <br />freld to verify this assumption. <br />BRL noted the comment. <br />6. As a reminder, any cultural resources information submitted for any new disturbance will <br />be forwarded by this division to the office ojthe Colorado Historic Preservation Officer <br />for their concurrence before the minor revision submittal can be approved. <br />BRL noted the comment. <br />In the Division's experience concerning gob vent bore holes on federal land, BRL may <br />have to meet with federal agency personnel on site before any disturbance associated <br />with the construction of the vent holes can begin. <br />BRL noted the comment. <br />If you have any questions, please call me. <br />Sincerely, <br />~J ~ ~-°~ <br />seph J. Dudash <br />Environmental Protection Specialist <br />cc: Jim Stover P.E. (J.E. Stover & Associates) c:\ms97\bowie2\trl5adeg2 <br />