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Trees and screening: • "The Natural Communities and Rare Species of Sherburne CountyMap" p p identifies an oak forest, mesic subtype, on the subject property. The removal of these trees was identified and reviewed in the City of Elk River's Environmental Impact Statement on Mineral Excavation. Staff is recommending a 200 foot strip of trees is left in the northwest corner of the site to act as a buffer for the city's railroad hiking trail. The other areas it would be logical to leave trees where they would not interfere with mining activities are adjacent to 221st Ave. and Highway 169. Regrettably, very few trees exist in these areas. Staff is recommending trees be planted within the required 50 foot setback adjacent to these roadways. Further, staff is recommending spruce be planted on the berms as they are constructed. The draft CUP reflects these recommendations. Hours of operation: Staff is recommending that mining activities take place during the normal hours allowed, 7:00 a.m. to 7:00 p.m. However, in addition to these hours staff is recommending the asphalt plant be allowed extra hours to operate on special occasions. An example of a special case was the recent paving of IIHighway 101, which had to take place at night because of traffic concerns. Noise, vibration and lighting: The conditions in the draft CUP regarding these issues are typical language for a gravel mining permit and have worked well in the past. Fencing: Tiller is proposing to fence their entire site with a four foot high woven wire fence. Warning signs should also accompany this fence. Odor: The conditions regarding odor in Tiller's current asphalt plant permit have been added to their new permit. These conditions include a review process by the city and ultimately revocation of the permit, if necessary to resolve odor problems. • \shrdoc\b&z\stever\tilrcup.doc