08-01-2022 Council Work Session Packet

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aALLIANT ENVIRONMENTAL ASSESSMENT WORKSHEET 11 Robinson Sod Farm PAGE 15 Lino Lakes residential water demand from 2016 to 2020 was 65 gallons per person per day of water. Based on a three person household, it is estimated that the PUD Concept Plan will use approximately 108,615 gallons per day of water and the Yield Plan will use approximately 137,865 gallons per day of water. Measures to avoid, minimize, or mitigate environmental effects of groundwater consumption include many approaches that will result in a reduction of overall water demand. These include utilization of smart irrigation technology, water conservation, water use efficiency improvements, limitations on irrigation, stormwater reuse for irrigation, low water use landscaping, and use of low flow fixtures. iv. Surface Waters 1) Wetlands - Describe any anticipated physical effects or alterations to wetland features such as draining, filling, permanent inundation, dredging and vegetative removal. Discuss direct and indirect environmental effects from physical modification of wetlands, including the anticipated effects that any proposed wetland alterations may have to the host watershed. Identify measures to avoid (e.g., available alternatives that were considered), minimize, or mitigate environmental effects to wetlands. Discuss whether any required compensatory wetland mitigation for unavoidable wetland impacts will occur in the some minor or major watershed, and identify those probable locations. An on -site field wetland delineation has not been completed at this time, but will occur during the summer of 2022. Any wetlands identified within the project site are regulated at the state level by the Wetland Conservation Act (WCA) which is administered by the Minnesota Board of Water and Soil Resources (BWSR). Rice Creek Watershed District is the WCA Local Government Unit (LGU) where the project site is located. At the federal level, wetlands are regulated under Section 401/404 of the Federal Clean Water Act (CWA) that is administered by the MPCA (Section 401 Certification) and the U.S. Army Corps of Engineers (Section 404 Permit). There are no MN DNR public waters, public water wetlands, or public watercourses within the project. Thus, an MN DNR public waters permit will not be necessary for this project site. Potential Impacts to Wetlands on Site Based on the potential PUD and yield concept plans, it is possible that permanent wetland fill could occur on site. The permanent wetland fill could potentially be eight acres in size; however, this estimate is only based on desktop mapping from the Minnesota National Wetland Inventory and is subject to change based on the wetland delineation that is still in progress and needs to be approved. Based on the results of the field wetland delineation, the concept plan may need to be altered to avoid and minimize wetland impact where feasible. An Approved Jurisdictional Determination (AJD) will likely be obtained, if necessary, from the Army Corps of Engineers once the delineation is finalized and impacts are known on site.