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COMPOSITE REPORT-Page 3 CUP No. 1405 • Wetland: There is a large wetland area immediately north of the subject site. A portion of the subject site drains towards the wetland area. • Shoreland: The subject property is adjacent to a drainage ditch (tributary to the Koshkonong Creek). The County's shoreland regulations require a special exception permit for all earthmoving activities within 300 feet of waterways. The applicant has yet to apply for this permit. In a related issue, the applicant indicates that a retention pond would be excavated. • Floodplain: FEMA maps show that the extreme northwest and southeast portions of the subject property are in the floodplain. Extraction of sand is a permitted use in the floodplain zone. Still, the floodplain ordinance requires that the applicant demonstrate to the satisfaction of the zoning administrator that the use will not increase flood elevations (s.17.33(2)). The applicant indicates that the floodplain would not be adversely affected. • Groundwater: The subject site has a high water table. The applicant indicates that sand excavation would be to a depth ten to twenty feet below the groundwater level. The potential impact on groundwater quality of the operation and storage of plant and equipment should be considered. F. Without sufficient safeguards, nearby residences could be impacted by the proposed use, which such potential impacts described as follows: • Visual: The proposed berm should be oriented and sized to block visibility from nearby residences along Nora Road to the excavation area. Berming or landscaping may also be appropriate to screen the use from the new residence to the northwest. The applicant suggests a "landscaped buffer" would be provided, but no landscaping is shown on the site plan. • Noise: Both truck hauling and the possible crusher could have noise impacts on surrounding properties. The applicant states that noise suppression equipment would be used. Hours of operation appear reasonable, but a 6:00 a.m. start time may be somewhat early. • Dust: The applicant suggests that dust would be minimized because most excavation would occur below the water table, and that dust suppression equipment would also be used. The applicant has also agreed to provide an asphalt driveway to Nora Road. More detailed plans may be required given the potential use of a crushing plant. G. Both the Town Board and County Highway Department have identified the potential impact of the use on the roadway network. The applicant has agreed to provide a bond for Nora Road in the event that damage is caused from truck traffic. The Highway Department advises that the applicant be financially responsible for any required improvement to the intersection of Nora Road and CTH N resulting from the proposed use. H. At its December 2 meeting, the Cottage Grove Town Board recommended that the ZNR Committee approve the CUP. On January 7, the Board also approved a non- metallic mining permit for the proposed use. The Board conditioned its approvals on(1) removal of an existing gravel driveway to Nora Road, (2) provision of a bond to improve Nora Road, if needed, (3) construction of the fencing as shown in Exhibit A, and (4) construction of an asphalt haul road (driveway).