05/04/2022 EB Packet - Laserfiche WebLink

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2 • Stormwater Management Report prepared by Bowman, dated March 3, 2022 • Landscape Plans prepared by Bowman (no date provided) • Photometric Plan prepared Reztark, dated February 1, 2022 ANALYSIS General Site Characteristics The applicant is proposing to develop the approximately 1.06 acre property that is just northwest of the intersection of Main Street and Otter Lake Road. Currently, the site is used for agriculture. The proposed project includes a carwash housed in a 3,500 square foot building. There will be 28 stalls with free vacuums for customers. As described in the project narrative, the carwash will recapture and recycle water to minimize water consumption. Soils The Natural Resource Conservation Service Web Soil Survey notes the following soil types on the project site: Webster loam, which is poorly drained, hydric, and in hydrologic group B/D. Group B is has moderately low runoff potential when thoroughly wet. Group D has high runoff potential when thoroughly wet. Hayden fine sandy loam, which is well drained, hydric, and in hydrologic group B. Stormwater infiltration is not feasible for this site due to the high clay content of the soil. Stormwater Management, Erosion, and Sediment Control Stormwater management plan has been submitted and is being reviewed by the City Engineer. Per the Storm Water Management Report prepared by Bowman, runoff will be collected via sheet-flow and via curbs and gutters to catch basins at low points in the pavement, which will then be conveyed via storm sewer to the stormwater basin and wetland located west of the site. Ultimately, the site drains to Clearwater Creek and Peltier Lake, both of which are impaired waters. The allowed impervious surface coverage in the GB, General Business District is 75%. The proposed impervious surface coverage of Lot 1 is 72%. The proposed post- development impervious surface coverage is compliant.