INSPEC19190

• Permit No: M1979195
• IBM Index Class Name: Inspection
• Doc Name: MINERALS PROGRAM INSPECTION REPORT
• Inspection Date: 2/26/1999
• Media Type: D
• Archive: No

(Page 2)
MINE ID # OR PROSPECTING ID # M-79-195
INSPECTION DATE_February 26, 1999 INSPECTOR'S INITIALS TAS
OBSERVATIONS
1. A site inspection was made of the Road Runners Rest II Pit permitted by Suburban Sand &
Gravel Co. Present during the inspection was Steve O'Brian representing the current operator
(Aggregate, Inc.). The purpose of the site inspection was Co measure and document active
disturbances at the pit and then calculate a current reclamation cost.
2. All necessary measurements were not completed during the inspection. Remaining
measurements to be taken or verified by the Division are slope gradients, lengths, and widths
for the active pit disturbance. Mans originally supplied by the applicant do not depict
current topography at the site. Mr. O'Brian volunteered to supply current and accurate mine
plan maps which can then be used to produce the necessary slope measurements. This inspector
agreed to allow the operator up to 30 days (April 12, 1994) to produce the new maps. In the
absence of these maps by April 12, 1999, the Division will schedule a follow-up field
inspection to collect these measurements. In the event that current maps are provided the
Division will still need to verify the measurements in the field. The operator has not
completed the mine plan. Eventually, there will be one 136 acre lake to remain for final
reclamation. Currently, there are three (3) lakes and one large "island" in the center of
the pit disturbance. Accordingly, the current lakeshore area is extensive with slopes
ranging from near vertical to 3:1. The pit is bordered on the north and west by the South
Platte River.
3. Approximately 30 acres remain which will be removed upon completion of the mine plan.
The 30 acres comprise the "island" mentioned in Item 2 above. According to Mr. O'Brian, the
perimeter of this area contains approximately 6 acres of 1:1 slopes ac 22' height.
Approximately 'h the surface area of the 30 acre island contains the plant site, ie: crusher,
screens, stacker, & conveyor system. The remaining portion of the island contains product,
overburden, and topsoil stockpiles. Under a worst case scenario (in which mining ceased
today) this entire 30 acre area will need to be scarified, topsoiled, and revegetated. The
perimeter slopes will also need to be graded to final reclamation contours.
4. There is also an 8 acre processing area near the site entrance to the Aoad Runners Rest
II Pit. Approximately 4 acres of this area will be scarified, topsoiled, and revegetated
during final reclamation.
5. The southern shoreline of the largest and southern most of the three (3) lakes has been
regraded to final reclamation contours. The bench above this shoreline also serves as the
boundary and access road to the adjacent Al Frei Pit #2. This inspector measured 920 linear
feet of this shoreline that will need to be stabilized by additional finish grading and
revegetation to remove minor rill and gully erosion. The erosion appears to be caused by
road drainage flowing onto a regraded, bare slope. This inspector estimates 1.3 acres of
shoreline (60' x 920') that will require finish grading and revegetation.
6. There are infestations of noxious weeds, diffuse knapweed and musk thistle in a number
of locations throughout the permitted area. This inspector estimates the surface area of all
the infestations to be at least 5 acres. The presence of these infestations is considered
to be a problem. In accordance with Rule 3.1.10(6) of the Construction Material Rules &
Regulations, the Division requests that the permittee or operator implement a weed control
plan for these noxious weeds during the 1999 field season and continue the weed control plan
until the infestations have been brought under control. The Division also requests that the
permittee or operator develop and submit a weed control plan for diffuse knapweed and musk
thistle no later than April 17, 1999. Attached co this report is a list of State and County
Resources that may provide technical assistance in developing a weed control plan. The weed