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Orono Subdivision Loren Butterfield WETLAND DELINEATION REPORT Owner/Applicant: Loren Butterfield Project: Orono Subdivision Wetland Delineation Methodology The use of a multi-parameter approach(vegetation, soil and hydrology)was implemented to delineate a portion of the wetlands occurring at the Orono Subdivision Property in Section 32,Township 118,Range 23,Orono,Minnesota. The Routine On-Site Determination method,as described in the 1987 addition of the Federal Manual for Identifying and Delineating Jurisdictional Wetlands,was used to delineate the site. Wetlands were also classified according to Wetlands and Deepwater Habitats of the United States (FWS/OBS Pub 79/31: Cowardin et al. 1979) and Wetlands of the United States (USFWS Circular 39; Shaw and Fredine 1971). Areas that are dominated by hydrophytic vegetation, meet the hydric soils criteria, and exhibit indications of wetland hydrology are identified as wetland communities. These three technical criteria are mandatory and must be satisfied in making a wetland determination. Field techniques consist of a main transect with a series of soil samples combined with vegetation data, and observations of hydrology to determine wetland boundaries. Each individual lath is generally associated with a series of soil probes(18 inches or greater in depth)that are taken in a line from obvious upland to obvious wetland. Munsell Soil Color Charts are used to determine soil chroma, mottle color and gleying color(when present). If the soil does not meet the hydric requirement,and the site lacks wetland hydrology and dominant hydric vegetation,another sample is taken 1-3 feet toward the wetland until all three requirements are met(under Normal and Undisturbed Conditions). Wetland Plant Indicator Designations Where plant species have been referenced in the text and tables,we have cited the scientific name,common name,and wetland indicator status according to the National List of Plant Species that Occur in Wetlands: North Central, (Region 3). (USFWS Biological Report 88(26.3); May 1988). A plus or minus sign attached to a species' indicator status means that the species falls on the high or low side of the frequency range for its classification. The various indicator categories are as follows: OBLIGATE WETLAND (OBQ: Species occurs almost always (estimated probability >99 %) in wetlands under natural conditions. FACULTATIVE WETLAND (FACW): Species usually occurs in wetlands (estimated probability 67 to 99 %) but occasionally found in non-wetlands. FACULTATIVE (FAC): Species equally likely to occur in wetlands and non-wetlands (estimated probability 34 to 64%). FACULTATIVE UPLAND (FACU): Species usually occurs in non-wetlands (estimated probability 67 to 99 %) but occasionally found in wetlands(estimated probability 1 to 33%). OBLIGATE UPLAND (UPQ: Species occurs almost always (estimated probability >99 %) in non-wetlands under natural conditions. For an area to be a jurisdictional wetland, more than 50 percent of the dominant vegetation from all strata (Herbaceous, Shrub, Sapling, Tree, and Vine) must be OBL, FACW, and/or FAC, under normal and undisturbed conditions. 2006-226wdr.doc