2013-10-18_REVISION - M2005044

• Permit No: M2005044
• IBM Index Class Name: REVISION
• Doc Date: 10/18/2013
• Doc Name: Adequacy Review No 1 CN01
• From: DRMS
• To: Lincoln COunty
• Type & Sequence: CN1
• Email Name: MAC
• Media Type: D
• Archive: No

Mr. DeWitt
Page 12
October 18, 2013
6.4.2 Exhibit B — Index Map
No comment.
6.4.3 Exhibit C — Pre - mining and Mining Plan Map(s) of Affected Lands
2. As required by Rule 6.2.1(2)(e), please revise the Mining Plan Map to include a map scale.
The acceptable range of map scales shall not be larger than 1 inch = 50 feet, nor smaller than
1 inch = 660 feet.
3. As required by Rule 6.4.3(c), please revise the Mining Plan Map to include the existing
topography of the area with contour lines of sufficient detail to portray the direction and rate
of slope of the affected land. Also, include the appropriate contour interval on the revised
map.
4. As required by Rule 6.4.3(e), please revise the Mining Plan Map to include the type of
present vegetation covering the affected lands.
5. As required by Rule 6.4.3(g), please revise the Mining Plan Map to include all permanent
man -made structures within two hundred feet of the affected land. The railroad line on the
south side of the affected area is considered to be a permanent man -made structure.
6. If the Hoffman Pit will be mined in phases, then please illustrate the phases on the Mining
Plan Map.
6.4.4 Exhibit D — Mining Plan
7. The Applicant has stated that the Hoffman Pit will be mined in phases, with each phase being
between 10 to 12 acres in size. As required by Rule 6.4.4(e), please provide the following
information:
a. An estimate of the periods of time which will be required for the various phases of the
operation;
b. A description of the size and location of each area to be worked during each phase;
and
c. Outline the sequence in which each stage or phase of the operation will be carried out.
8. The Applicant has stated that erosion control BMP's will be utilized to protect drainages.
Please provide the Division with additional information on the BMP's to be used, including:
a. A general description of the placement of the erosion control structures.
b. Maintenance and inspection plan for the erosion control structures.
c. Describe any vegetative buffers that will be left in place.
d. A timetable for when the erosion control structures will be removed and the criteria
used to determine when the structures will be removed.
e. A timetable for when erosion control structures will be constructed as mining
progresses to a new phase.