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<br />COLORADO YAMPA COAL COMPANY <br />Initial Approval - Permlt 82R0302-1 <br />Page 2 <br />4. The above emis~lon ltmltatlon was bated on average ambient concentration <br />In the mine of 2000 ug/m3, axheuft shaft flow of 250,000 cfm, and 50x <br />control for natural scrubbiny. <br />2 <br />The above limitations were imposed to ensure that emissions will not <br />result in an exceedance of the NAAQS for pollutants as required by CRS <br />1473, Sections 25-7-102, 25-7-105(1)(e)(I}, and 25-7-201 (1)(b); Section <br />165(x)(3) of the Clean Atr Act. 42 USC 7475(x)(3); and Section IY.D.I.c. <br />of Air Quality Control Commission Regulation No. 3. <br />view Eng Weer <br />By <br />~ry p,,,~cGutchen, P.E..~Cfiief <br />gineer ng Section <br />Stationary Sources Program <br />Air Pollution Control Division <br />