INSPEC28628

• Permit No: M1982086
• IBM Index Class Name: Inspection
• Doc Name: MINERALS PROGRAM INSPECTION REPORT
• Inspection Date: 3/1/1996
• Media Type: D
• Archive: No

(Page 2) •
MINE ID # OR PROSPECTING ID # K-BZ-086
INSPECTION DATE 3 1 96 INSPECTOR'S INITIALS ACS
OBSERVATIONS
The Reclamation Permit for the Fairplay Site was recently transferred to Alpine Rock Company
from the previous Operator, James Maxwell. This inspection was primarily conducted ae a site
assessment to facilitate estimation of reclamation costa and establishment of an appropriate
bond amount. James Sampson, of Alpine Rock Company, was present for this inspection.
The permit area contains large piles of historic dredge tailings along the southern margin
of the site. The approved mine plan specifies excavation of these dredge piles down to the
natural ground surface, and crushing and stockpiling of the dredge tailings in the flats that
make up the northern portion of the permit area. These flats terminate at the north end of
the permit area at a bank that drops down to the floodplain of the Middle Fork of the South
Platte River. There are currently no engineered facilities in place at the north end of the
permit area to control runoff to the river from the designated excavation, processing, or
stockpile areas. Mr. Sampson stated that Alpine Rock Company will be obtaining a Storm Water
Permit from the Water Quality Control Division for this site. The Operator moat submit a
technical revision to incorporate storm water management facilities, including reclamation
aspects, into the Reclamation Permit, e.g., sedimentation ponds, ditches, berme, etc. (See
PB #1 on the fourth page of this report).
Mr. Sampson stated that an entrance sign ie being prepared for this site that will comply
with the requirements of Rule 3.1.12 of the Construction Materials Rules and Regulations of
the Mined land Reclamation Hoard (see PB #2 on the fourth page of this report). The south
permit boundary at this site coincides with the land ownership boundary. The dredge tailing
piles extend onto the other property to the south. Numerous stakes have been set into the
dredge tailing piles to mark this boundary. The operator must be careful to leave enough
gravel in place to establish 3:1 elopes that treat inside the permit boundary at the time of
reclamation. The north permit boundary ie at the location where the flats give way to the
river bank that drops down to the floodplain. This permit boundary does not coincide with
the land ownership boundary. The Operator ie not currently permitted to disturb any land
north of the bank.
There was a mobile asphalt plant set up at the Fairplay Site during the summer of 1995. The
only processing at the site that is described in the approved mine plan is gravel crushing.
If the Operator intends to batch asphalt or concrete at the site, or intends to wash
aggregates, or do any processing other than crushing, then a technical revision, including
reclamation aspects, will have to be submitted to the permit (see PB #3 on the fourth page
of this report).
There are piles of salvaged equipment and other junk near the southwest corner of the permit
area. The Operator has a lease agreement with the owner of the junk requiring its removal
by 7/1/96. If the junk is removed, and the area cleaned-up by 8/1/96, a coat to remove the
junk will not be included in the bond amount for the site. If the junk has not been removed
by 8/1/96, a coat for junk removal will be applied.
The following tasks will need to be completed in order to reclaim the site. The coats to
complete these tasks are included in the reclamation coat estimate attached to the Operator's
copy of this report (see PB #4 on the fourth page of this report):
1. Demolish and remove structures related to the gravel extraction operation.
Such structures currently include a 25'x55'x20' high steel building with a 4/12 gable roof
(29,331.5 cubic feet) on a concrete slab foundation (1375 square feet), and a 40'x12'x10'
high wooden scale house (4800 cubic feet) on a concrete slab foundation (480 square feet).
2. Remove coarse sand and crushed gravel that may be expected to accumulate
in the processing and stockpiling areas. This task will expose native ground for the purpose
of revegetation. If the State was to complete this task, in a bond forfeiture situation, the
material would probably be backfilled against the elope of the dredge piles, then plated with
the coarse dredge tailings. The processing and stockpile areas are permitted for up to 34
acres, and the material to be scraped up can be anticipated to be approximately 2 feet thick
(109,707 cubic yards). The average push or haul distance is measured from the center of the
permitted processing areas to the toe of the dredge piles to be approximately 1000 feet.
3. Grade and shape the outelopee of dredge tailing piles where excavation has
occurred. The operation is permitted to excavate gravel from an approximately 5960 linear
foot face of the dredge piles. The piles average about 20 feet in height, and the excavated