The present major emission source at the minesite area is the primary crushing/drying/concentration plant, which is ''ventilated'! by a system of exhaust fans with no type of dust collection (except for dryer cyclones) installed prior to exhausting outside. Since no make up air is provided either, a constant particulate- loaded recirculation occurs, heavily polluting both inside and outside areas. Fortunately, new construction is under- way and will remove the problem. PLANTSITE/MILLSITE Emission sources are: i) Powerhouse (diesel exhausts) ii) Steam Plant (oil boilers exhaust) iii) Dryers building (dryer exhausts) iv) Dry Rock storage building (fugitive dust) v) Milling process (fugitive dust) vi) Mill Tailings (fugitive dust)