Agenda - Council - 04/11/2017 - Laserfiche WebLink

Home

Pearson Farm Residential Development EAW Draft—March XX,2017 Development of the project area will disturb more than one acre of land and therefore will require application for coverage under the National Pollutant Discharge Elimination System/State Disposal System (NPDES/SDS) General Permit administered by the Minnesota Pollution Control Agency (MPGA)prior to initiation of earthwork In compliance with the General NPDES Permit for construction activities,the project proponent and construction contractor will need to implement Best Management Practices(BMPs)to reduce erosion and sedimentation and stabilize exposed soils after construction. Erosion and sedimentation control BMPs related to stormwater runoff are discussed in greater detail within Item I1.b.ii. NOTE: For silica sandprojects, the EA W must include a hydrogeologic investigation assessing the potential groundwater and surface water effects and geologic conditions that could create an increased risk of potentially significant effects on groundwater and surface water. Descriptions of water resources and potential effects from the project in EAW Item 11 must be consistent with the geology, soils and topography/land forms and potential effects described in EAW Item 10. 11.Water Resources a. Describe surface water and groundwater features on or near the site in a.i. and a.ii. below. i. Surface water-lakes, streams, wetlands, intermittent channels, and county/judicial ditches. Include any special designations such as public waters, trout stream/lake, wildlife lakes, migratory waterfowl feeding/resting lake, and outstanding resource value water. Include water quality impairments or special designations listed on the current MPCA 303d Impaired Waters List that are within I mile of the project. Include DNR Public Waters Inventory number(s), if any. The project area includes three wetlands that were delineated by Kjolhaug Environmental Services on October 6,2016 (Figure 6, Table 5). Of the three wetlands, only Wetland I corresponds to a wetland location shown on National Wetlands Inventory(NWI)mapping (Figure 10). All three wetlands correspond to locations of predominantly hydric Isan soils (Figure 9,Table 4). There are no listed or mapped trout streams/lakes,wildlife lakes,migratory waterfowl feeding/resting lakes,or outstanding resource value waters in or near the project area. Delineated wetland boundaries have been approved by the Lower Rum River Watershed Management Organization(LRRWMO)and wetland boundary approval from the U.S.Army Corps of Engineers(USACE)is pending. The LRRWMO is the local government unit administering the Minnesota Wetland Conservation Action(WCA). Appendix A includes the LRRWMO notice of decision approving the wetland boundary and type determinations. The site does not include any MN DNR public waters,public waters wetlands,or public watercourses. Table 5. Wetlands on the Pearson Farm Residential Development site Map Acres Classification Eggers Vegetation ID Onsite Circ.39 Cowardin E ers and Reed 1 0.34 1 PEMAf Seasonally flooded basin Soybeans,reed canary grass 2 0.64 1 PEMAf Seasonally flooded basin Stunted corn,green bulrush 3 0.04 1 PEMAf Seasonally flooded basin Stunted corn Total 1.02 10