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2.2.2 Environmental Effects <br /> The BLM has developed a statewide Air Resource Protection Protocol, which is a strategy to address air <br /> resource concerns consistently across district and field offices(BLM 2013).This protocol is followed in this <br /> analysis to evaluate potential impacts to air resources. Under the Proposed Action,the King II Mine would <br /> continue to produce and transport coal at levels below the maximum allowable production limit of 1.3 <br /> million tpy (limit is per CDPHE Air Quality Permit No. 09LP0202F, Final Approval — Modification 1, <br /> Condition No. 2, dated 9/3/2013). Additionally, haul truck traffic is limit to 1.1 million tpy in accordance <br /> with road use agreement (Project# 2012-0089) from La Plata County (LPC). It ultimately limits the truck <br /> trips to a maximum of 120 per day. A more realistic annual maximum tons are 800,000 burned. This is <br /> based on estimated future coal market conditions and expected future coal contracts. <br /> For this air analysis, direct annual emissions calculations are based on each of the three scenarios: <br /> producing an estimated 800,000 tons, 1.1 million tons, and 1.3 million tons. However, the total tonnage <br /> produced estimated throughout the life of the mine (22 years) is 17 million tons. <br /> 2.2.2.1 Direct Emissions <br /> With exception of particulate matter, all the directly emitted criteria pollutants from the King II Mine's <br /> operations are from fuel combustion sources, such as mobile mining equipment, haul trucks, and <br /> stationary sources such as emergency generators, heaters. Also, coal mine CH4(CMM) is directly emitted <br /> by the ventilation air handling system required by the Mine Safety and Health Administration (MSHA)to <br /> reduce the combustion/explosion potential of the mine's underground atmosphere. Due to the area's <br /> naturally low occurrence of gas in the coal formation, overburden, surrounding strata as well as GCCE's <br /> room and pillar mining methods,this is the only CH4 ventilation system required at the King II Mine. The <br /> ventilation air CH4 emissions estimates are based on a single CH4 concentration measurement(the highest <br /> ever recorded by MSHA at the mine was 0.02 percent) and the main vent fan air flow used by CDPHE to <br /> estimate vent particulate matter emissions. Stationary sources(including any area and fugitive emissions) <br /> at the King II Mine are regulated by CDPHE and are authorized by Air Pollution Control District (APCD) <br /> permit number 09LP0202F.Table 2.2-9 provides permitted emission limits by source ID. Several pieces of <br /> stationary equipment at the King II Mine are also covered by NSPS Subpart Y, which specifies emissions <br /> standards for coal preparation plants.The APCD permit only covers source of particulate matter. None of <br /> the other pollutants emitted by stationary sources are generated in quantities significant enough to <br /> warrant permitting. <br /> Table 2.2-9 CDPHE Permit 09LP0202F Emissions (tpy) <br /> Source ID Source Type PM10 I PM,., I Emission Type <br /> 001 Stockpiles 16.0 2.1 Fugitive <br /> 002 Crusher 0.4 0.1 Point <br /> 003 Bins& Loadout 0.2 0.0 Point <br /> 004 Mine Ventilation 10.3 1.6 Point <br /> 005 Conveyors 0.7 0.1 Point <br /> 010 Screening 0.5 0.0 Point <br /> Dunn Ranch Area LBA and Mining Plan Modification 17 <br /> Technical Resources Report <br />