2020-06-16_PERMIT FILE - M2020007 ‎(7)‎

• Permit No: M2020007
• IBM Index Class Name: Permit File
• Doc Date: 6/16/2020
• Doc Name: Adequacy Review Response #2
• From: Environment, Inc.
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

EXHIBIT D
MINING PLAN AND TIMETABLE
LOCATION
This is an open pit mine located about 3 . 5 miles north of Fort
Lupton, Colorado, with the entrance on the west side of State
Highway 85 . To reach the mine from the Ft . Lupton, go north on HWY
85 about 3 . 5 miles to Weld County Road 20 . The coordinates of the
entrance are 40007150 .49211 , -104048139 . 076" . Please refer to EXHIBIT
B-VICINITYMAP for the property configuration and the relationships to
surrounding geological features . The area to be mined lies north
of this point on the west and east of sides of HWY 85 and Union
Pacific Railroad (UPRR) .
GENERAL INFORMA TION
The primary commodities to be mined are sand, gravel, topsoil,
overburden, and borrow materials . No incidental commodities will
be produced at this mine . Throughout this application we will
refer to the two areas, (a) the west area containing Phases 1, 2 &
3 and backfill areas, and (b) an east area containing Phases 4 , 5 &
6 and the backfill areas east of the railroad.
The western area is made up of five (5) mining areas - three
areas will be mined and reclaimed as developed water storage
reservoirs and two areas will be mined, backfilled and reclaimed as
cropland. The eastern area will have up to eight (8) mining areas,
of which five (5) areas will become reservoirs and 3 areas will be
backfilled and reclaimed as cropland.
Mining in Phases 1, 2 , 3 , 4, 5 & 6 will be mined after the slurry
walls are completed around them. Stages 1A, 2A, 4A, 4B, and 5A
will be dewatered during mining so they can be mined dry.
Dewatering will continue until mining ends in each of the backfill
stages .
The area being permitted and much of the surrounding areas has
historically been used as irrigated cropland (irrigated and
non-irrigated) , and vacant land. This site lies near the South
Platte River, so it contains an alluvial gravel deposit in the
western area, which extends into a large terrace of gravel in the
eastern area.
CURRENT CONDITIONS
Large portions of the lands to be permitted are currently
operated as an irrigated farm land, by Cannon Land Company. There
are two operation areas separated HWY 85 and the UPRR tracks that
run north to south. The area between the east and west areas
contain fiber optic lines, telephone lines, gaslines and electric
lines as well as the roadway and the tracks .
The western area lies between the South Platte River and Hwy
85 and is currently an active farm, with support structures that
will be removed as mining progresses . There are no County roads or
public facilities in this area. The oil and gas facilities on this
side are four (4) oil/gas wells on the site, three (3) of which are
shut-in. The Platte Valley Canal cross this area from north to
south and will not be disturbed by mining.
The eastern area is also used as an active farm with
associated support structures similar to the west side. Two Weld
L.G. Everist, Inc- Ragsdale Reservoirs June 11, 2020
D-1