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2.4.1.3 Water Resources Sutl cc Wa tets There is one DNR Public Waters watercourses, Trott Brook (M-063-001.5), located within the project area. Trott Brook meanders in and out of the project site along its western and southern boundaries. There are no DNR Public Waters basins, designated wildlife lakes, migratory waterfowl feeding/resting areas, trout streams/lakes, MPCA or MDNR listed calcareous fens, outstanding resource value waters, and county or jurisdictional ditches within or adjacent to the project area. Prominent water features located within 1 mile of the project site include the aforementioned Trott Brook as well as two DNR Public Waters wetlands. These wetlands were Khever Marsh (71000300) located approximately 0.6 miles south of the project site, and an unnamed basin (71023800) located approximately 0.8 miles to the north. There are no MPCA Section 303d listed impaired waters located within a 1-mile radius of the project site. 12 wetland areas, totaling approximately 71 acres, were delineated on the main Project site and approved by the Local Government Unit (City of Elk River) of the Minnesota Wetland Conservation Act (Minnesota Rules 8420). A Notice of Decision was issued on November 10, 2021 (LGU Project No. W-21-21). Groundwa ter The depth to ground water appears to vary greatly across the site. During the geotechnical evaluation of the site 22 soil borings were completed across the site. Water tables, when they were observed, ranged from 894.4' to 908.5' MSL. These water tables were all observed in borings taken within or immediately adjacent to wetlands or to open water on site. Water tables typically were not observed within borings taken within upland areas. The deepest of which was taken to a depth of 887.3' MSL with no observed water table. A map of the boring locations and boring logs documenting water tables observed is included in Exhibit B — Geotechnical Report. The Minnesota Department of Natural Resources Cooperative Groundwater Monitoring Website maintains data on ground water levels. The closest observation well to the Project site is DNR Observation Well #86017 (MDH #708372), which is located approximately 2.8 miles southwest of the Project site. The water level in the most recent data record (March 29, 2022) was measured at 859.51' MSL. A majority of the Project site is located within the Elk River Wellhead Protection Area (WHPA). The boundary of the ELK River WHPA is illustrated on Appendix A — Figure 8. According to the Minnesota Department of Health — Minnesota Well Index, there are no identified wells located within the Project site. Multiple domestic wells were mapped on adjacent properties, the nearest of which, MDH #551578, was located approximately 140 feet east of the Project site. WWastewatet Wastewater generated from the site will be discharged into the City of Elk River's sanitary sewer system and flow to the City of Elk River Wastewater Treatment Facility (Facility) located at 248 Railroad Drive, Elk River. The Facility is described as follows within its NPDES Permit (MN0020788):