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WETLAND DELINEATION REPORT <br />Silver View Pond Restoration <br />Methods <br />October 26, 2023 <br />2.0 METHODS <br />2.1 WETLANDS <br />Wetland delineations were based on the criteria and methods outlined in the Corps of Engineers Wetlands <br />Delineation Manual, Technical Report Y-87-1 (1987) and subsequent guidance documents (USACE 1991 a, <br />1991 b, 1992), and applicable Regional Supplements to the Corps of Engineers Wetland Delineation <br />Manual. <br />The wetland delineation involved the use of available resources to assist in the assessment such as U.S. <br />Geological Survey (USGS) topographic maps, U.S. Department of Agriculture Natural Resources <br />Conservation Service (NRCS) soil survey, U.S. Fish and Wildlife Service (USFWS) National Wetlands <br />Inventory (NWI) mapping, MNDNR Minnesota NWI Update mapping, MNDNR Protected/Public Waters <br />mapping, and aerial photography. <br />On -site wetland delineations were made using the three criteria (vegetation, soil, and hydrology) and <br />technical approach defined in the USACE 1987 Manual and applicable Regional Supplement. According to <br />procedures described in the 1987 Manual and applicable Regional Supplement, areas that under normal <br />circumstances reflect a predominance of hydrophytic vegetation, hydric soils, and wetland hydrology (e.g., <br />inundated or saturated soils) are considered wetlands. <br />As recent weather patterns influence the visibility and presence of some wetland hydrology indicators, the <br />antecedent precipitation in the three months leading up to the field investigation was reviewed. The current <br />year's precipitation data were compared to the most recent long-term (30-year) precipitation averages and <br />standard deviation to determine if precipitation was normal, wet, or dry for the area using the Antecedent <br />Precipitation Tool (APT) as developed by the USACE. <br />Wetland boundaries were identified and flagged using pink "WETLAND DELINEATION" flags and wetland <br />sample points were identified and flagged using lath with orange flagging tied to it. Both wetland boundaries <br />and sample points were surveyed with a Global Positioning System (GPS) capable of sub -meter accuracy <br />and mapped using Geographical Information System (GIS) software. <br />2 <br />