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CU-97-2 Evan's Brothers Appeal 3 10/13/97 dominated by pickleweed. The remaining 0.14 acres of wetlands are seasonal wetlands and occur in the south-central portion of the site. They are of relatively low value to wildlife due to their small size and to the disturbed nature of the plant community, because of annual disking of the area to reduce hazard from fire during the summer season. A minimum of 0.7 acres of pickleweed- dominated wetlands will be restored in the southwestern corner of the Hohener property to compensate for the 0.14 acres of wetlands to be filled. Since the Board of Zoning Adjustments meeting on July 3, 1997, the owner of the property has applied for and received a Nationwide Permit that will allow the filling of 0.14 acres of wetlands. They have also received approval of a Mitigation and Monitoring Plan by the U.S. Army Corps of Engineers that will restore the existing wetlands that will remain. The property owner has applied to the Engineering and Transportation Department for a Grading Permit to fill the site in preparation for development under the IG Industrial General District zoning. This site is up to ten (10) feet lower than surrounding properties to the east and south that are already developed. It is necessary to increase the grade of the property to assure proper drainage and to provide a compacted soil base for building construction. Development Services has prepared an Initial Study and Negative Declaration for the Grading Permit and this has been forwarded to the State Clearinghouse for the 30 day review period. At the completion of the review period on October 17, 1997, and after responding to any comments received on the Negative Declaration, the grading permit will be issued by Engineering and Transportation. This will allow the property owner to bring in fill material for use on the site. It will also permit Evan's Brothers to place crushed concrete and asphalt on the site to be compacted as fill. One of the benefits to the property owner in having the concrete and asphalt processing operation on the site is that the material can be used for fill. The primary benefit to the property owner is convenience and the benefit to the surrounding area is a reduction in trucks trips compared to bringing in fill material from outside the area. DISCUSSION During its discussion on this item, the Board raised the following concerns: Dust Control: The Board felt that on -site dust control measures would be adequate to protect the surrounding residential neighborhood because of the long distance to the closest homes. However, they were concerned about the adequacy of dust and dirt control on Davis Street, since this was not specifically addressed by the applicant. Evan's Brothers are going to use a wet rack to wash dust off of the trucks before they leave the site. The Board felt this could result in wet truck tires picking up material on the site and depositing it on Davis Street. Noise Impacts: The Board was concerned about noise and felt that information was not adequate to address noise. There would be noise from the equipment operating on the site and from trucks using Davis Street and Doolittle Drive. The nearest residents to this site are homes on Williams Street, just over 3,000 feet to the south, which measured from the area where the crushing and most of the equipment operation will take place. The type of equipment used by the applicant will have a noise level in the range of 80 to 90 dBA measured at 50 feet from the equipment. Source noise is