PERMFILE52952

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TAB 24 AIR QUALITY CONTROL PLAN
• Media Type: D
• Archive: Yes

• TAB 24
AIR QUALITY CONTROL PLAN
The following outlines the measures Seneca Coal Company will employ to control dust et the
Yoast Mine site. The control measures will be conducted throughout the life of the mine
in accordance with the terms end conditions set forth in the Emission Permit issued by the
Colorado Department of Heelth (CDOX). An attachment to this tab will contain the final
approved permit once it is obtained.
Sequential detonation of blasting charges will be utilized at the Toast Mine on overburden
end coal (Tab 14). 0.uthorities maintain this pr acfice reduces the emission of fugitive
dust (COloredo Air Pollution Control Regulation pi-11(d)(9)(b)(2)), although date to
substantiate this assertion has not been identified, and no estimate of its effectiveness
is known. The use of sequential blasting will continue throughout the proposed
life-of-mining activities.
• Coal produced at the Yoest Mine wilt be loaded into off-road haul trucks and transported
to the coal stockpile near the junction of Haul Roads A and B (see Tab 12). Haulage from
the coal storage area to the Hayden Station Powerplent will utiliz e on-road vehicles via
Xeul Road A and Routt County Roed 27. No coal crushing or handling facilities are located
at the mine site.
Haul roads will be watered to control dust emissions and, if necessary, chemical
suppressors will be used. Unpaved haul roads will be graded regularly to maintain a
surface free of loose materiel and potholes. Haul trucks will no[ exceed posted speed
limits. It is anticipated the maximum speed limit for the Yoast Mine will be 40 miles per
hour. Speed limit signs will be posted along the main haul road in both directions to
alert drivers of the speed limit. The maximum speed limit will be determined by the CDOH
and stated in the final Air Emissions Permit.
Topsoil salvaged for reclamation activities will be stored in stockpiles as close to the
reclaimed area as possible so as to limit the distance it must be moved (Tab 21). Topsoil
stockpiles will be stabilized using a temporary vegetation cover to limit wind erosion.
s
Areas that have been mined will be graded, topsoited, and revegetated in accordance with
1 Revised 03/01/95