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Cyphers Logistic Park AUAR 25 March 2022 the report, the predominant soil conditions consist of an average of one foot of topsoil overlying mixed glacially deposited soils. Earthwork on the study area south of 34th Street N is anticipated to generally balance and be kept onsite . The proposed project will require approximately 500,000 total cubic yards of excavation. During construction, sediment control best management practices such as silt fence s, biologs, and silt curtains will be used where appropriate. The proposed development within the study area south of 34th Street N will require compliance with both the City’s and VBWD’s erosion and sediment control standards. Erosion will be minimized to the extent practicable by establishing or retaining stabilizing vegetation and avoiding the placement of structures or land alternations near steep slopes. A National Pollutant Discharge Elimination System (NPDES) and Stormwater Pollution Prevention Program Construction Stormwater Permit (SWPPP) will be obtained prior to any earthwork or grading activities within the study area south of 34th Street N . While unlikely, if the study area north of 34th Street N is developed consistent with Scenario 4, minimal site grading and excavation work will be necessary to develop large rural residential lots , and all proper grading permits and site plan approvals will be required. The City anticipates development of the study area north of 34th Street N will be consistent with either Scenario s 1, 2, or 3 but the actual development is unknown. Based on the s cenario ’s excavation, mass grading and site work are likely with Scenario s 1, 2, or 3. Any future development of the study area north of 34th Street N will be required to submit construction and development plans that include erosion control and grading plans. All development will be required to obtain NPDES and SWPPP approvals, if applicable. Table 4: Soil Types Map Unit Symbol Soil Type Acres within site Percent of Site Hydric Rating Farmland Classification 49B Antigo silt loam, 2 to 6 percent slopes 48.9 26.1% Not Hydric Prime farmland 49C Antigo silt loam, 6 to 15 percent slopes 27.1 14.5% Not Hydric Farmland of statewide importance 49D Antigo silt loam, 15 to 35 percent slopes 2.7 1.4% Not Hydric Not Prime Farmland 120 Brill silt loam 7.3 3.9% Hydric (1%-32%) Prime farmland 153B Santiago silt loam, 2 to 6 percent slopes 26.0 13.8% Not Hydric Prime farmland 153C Santiago silt loam, 6 to 15 percent slopes 45.9 24.5% Not Hydric Farmland of statewide importance 155C Chetek sandy loam, 6 to 12 percent slopes 1.3 0.7% Not Hydric Not Prime Farmland 264 Freeon silt loam, 2 to 6 percent slopes 11.6 6.2% Hydric (1%-32%) Prime farmland