2019-09-06_REVISION - M1999018

• Permit No: M1999018
• IBM Index Class Name: Revision
• Doc Date: 9/6/2019
• Doc Name: Objection
• From: Wagner Construction Inc.
• To: DRMS
• Type & Sequence: SI3
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

RECEIVED
ROCK L& SEP 0 6 2119
Spec aggregates DIVISION OF RECLAMATION
1850 E. 1st. street, Craig, CO 81625 MINING AND SAFETY
Phone & Fax [phone]
[e-mail]
2019' Inspection of Wagner Rock Pit
M1999-018 Financial Warrantee Increase Objection
08-28-19
Demolition of the scale house;
Demolition of the scale house will not be necessary in its entirety.
The scale house is a portable office trailer with exiting frame, axel and tires
which can be simply connected to a vehicle and pulled away.
The scale and scale house are leased to Wagner Rock and will remain the
property of the Lease.
Slope reduction;
Upon further review of DRM&S estimates and calculations of backfill
quantities and other costs relative to the new bond amount, and further
conversation with Amy Yeldell, it appears that the division has calculated
slope reduction time based on the ripping and excavation of inert basalt rock
on the high wall to the South. To simplify this report we base our volumes
from your estimates. However, the basalt rock has all been mined out of the
high wall. The existing material that would be used to generate slope
material would be the stockpiled material (not topsoil) immediately above
the high wall which is in excess of 60,000 yards of loose yellow shale. We
keep high quantities of yellow shale in stock for reclamation efforts as well
as marketing the material as backfill or pit-run material for resale.
To slope the high wall with this loose, uncompact material will take about
16,000 yards requiring less than 28% of the machine time to complete.
Ripping will not be required.
If the division looks to slope with the inert high wall material, 13,000 yards
of existing decomposed shale can be used. As there are no further reserves
of hard basalt rock, ripping will not be necessary to excavate the shale as it
is very loose bank material. The division's calculation should be adjusted
down to account for the ease of shale versus inert basalt.