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i <br />• and a final revised report was completed on \ovember 19, 1977. <br />• <br />Tab 1c 8 compares the revised (controlled) emission_factors <br />with those originally used by i4:I iu tLr.ir initial report. <br />Only those revised factors pertairiin~; [o haul roads and rea- <br />l terials har,dliug differ from the fac;.ors origi.nall.y used <br />i <br />~ because of additional information obtained subsequent to t::e <br />j initial report. In addition, Table 8 also gives factors :;rich <br />i incorporate tl:e mitigative effects of additional control <br />measures since added by Energy Fuels. <br />• The revised and proposed emission factors for materials h;.::d- <br />i <br />1 ling required information on silt and not=tune content of <br />coal and overburden. The silt values for crushed coal (2.05;) <br />~ and overburden (8.1';) were measured at the AFC mine site a^d <br />the value for raw coal (lS;) was assumed. A moisture value <br />of 1% was assumed for both coal and overburden; this is a <br />~ small percentage of the measured value (3.0%) for total un- <br />bound moisture in coal and the measured value (3.1`/.) for total <br />' _ .. <br />t <br />J unbound moisture in overburden on dry days. <br />Tables 9-12 compare revised and original emissions totals <br />1 and resulting particulate concentrations at the receptor <br />~ points of maximum air quality impact. The revised emissions <br />1 <br />~ from the mine areas and associated air quality impacts increase <br />i -" <br />~ above the original estimates while tlce opposite is true for <br />the tipples. Examination of Tables 9-12 indicates that the <br />1 zevised maximum particulate concentrations exceed Colorado <br />77 <br />i <br /> <br />