2013-05-23_PERMIT FILE - M2013031

• Permit No: M2013031
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/23/2013
• Doc Name: 112c APPLICATION
• From: OPERATOR
• To: DRMS
• Email Name: KAP
• Email Name: GRM
• Media Type: D
• Archive: No

Exhibit Page 39
TRUCKS
A variety of trucks will be used to haul materials from the New Hay Camp Pit, including single
dump trucks, semi -dump trucks, and trucks with pups. Most commonly used will be dump
trucks with pups. Average haul for all vehicles will be 25 tons per vehicle. All trucks are
properly permitted for highway use and meet weight requirements for county and state
highways. All drivers have CDL (Commercial Drivers License) if required for the vehicle being
operated.
TRAFFIC COUNTS AND SCHEDULES
Based on average production and haul days, the traffic counts are estimated as shown in the
table below. Haul days available may vary from year to year, based on weather conditions,
road conditions, and truck availability. Hauling hours will be limited in accordance with
Montezuma Countv reaulations and permits.
Annual production
(tons)
Haul
days
Daily haul
(tons per
haul day)
Round trips
per haul
da 8
Number of
trucks
re uired9
Daily
admin
trips
Annual
average daily
round trips
70,000
100
700
28
3 -4 trucks
1
9
70,000
180
389
16
2 -4 trucks
1
9
50,000
100
1 500
20
2 -4 trucks
1
6
50,000
180
1 278
11
2 -3 trucks
1
6
As the operations are being relocated from the old Hay Camp Pit to the New Hay Camp Pit,
both of which use the same county road and state highway (and have been doing so since
1990), no change in traffic counts on County Road S (Forest Highway 556) or Colorado
Highway 184 is anticipated due to continued operations.
DUST CONTROL DURING HAULS
Dust control practices to be used in the pit, including the access road from County Road S, will
be based on pit traffic, and will include traffic control (speed limit and direction signs and written
instructions to drivers), and use of dust control agents such as magnesium chloride brine
(magwater) or ligneous sulfide, as needed. Watering of roads will not generally be used, due to
the lack of water on site and the current need to haul water several miles to the site. When
hauling material less than 1/4-inch size, haul trucks will be controlled to prevent dust, including
tarping (chemically or physically) in accordance with state and local requirements. If necessary,
hauling will be curtailed during extreme high wind conditions.
BLASTING AND NOISE CONTROL
Actions will be taken to reduce the impact of blasting and noise caused by the mine and
associated activities.
BLASTING
There will be no blasting done on site for the New Hay Camp Pit.
NOISE POTENTIAL
Due to the location of the site, located on the side and top of a high mesa, some
problem with noise is expected, as discussed above, and noise reduction is taken into
account in the overall design and selection of the berm /stockpile and the work area (at a
lower elevation on a flat), direction of working, and other noise control measures integrated
into the operation.
Typical sources of noise associated with sand and gravel extraction include operation of
mobile and stationary equipment (engine, conveyor and like noises), back -up alarms,
8 Based on an average of 25 tons per vehicle, for planning purposes.
9 Based on average 1 -hour round trip and average 10 -hour day, for planning purposes.