Laserfiche WebLink
prolonged saturation. Specifically, this includes plant communities that under normal <br /> circumstances have more than 50% of the composition of the dominant species from all strata <br /> ranked with an indicator status as obligate wetland (OBL), facultative wetland (FACW), and/or <br /> facultative (FAC) species. <br /> The indicator status for individual plants as defined by the updated 2016 Minnesota National <br /> Wetland Plant List are identified and described in the following table: <br /> Table 2. Vegetation Indicator Categories <br /> Indicator -.. Occurrence <br /> Obligate (OBL) Almost always <br /> Facultative Wetland (FACW) Usually <br /> Facultative (FAC) Equally likely to occur in uplands <br /> Facultative Upland (FACU) Rarely <br /> Upland (UPL) Almost never <br /> Hydric Soil <br /> A hydric soil is a soil formed under conditions of saturation, flooding, or ponding long enough <br /> during the growing season to develop anaerobic conditions in the upper part. Examples of hydric <br /> soil indicators include: the accumulation of organic matter, low-chroma soil matrices, gleying, <br /> redox concentrations, redox depletions, and hydrogen sulfide odor. <br /> Wetland Hydrology <br /> According to the 1987 manual, wetland hydrology is present when the area is inundated either <br /> permanently or periodically at mean water depths less than or equal to 6.6 feet, or the soil is <br /> saturated to the surface at some time during the growing season. The Midwest Regional <br /> Supplement requires fourteen (14) or more consecutive days of flooding or ponding, or a water <br /> table of twelve (12) inches (30 cm) or less below the soil surface, during the growing season at a <br /> minimum frequency of five (5) years in ten (10) (50% or higher probability) to satisfy wetland <br /> hydrology. <br /> The wetland hydrology criterion can be satisfied with observation of one (1) primary hydrology <br /> indicator or two (2) secondary hydrology indicators. Potential primary indicators of wetland <br /> hydrology may include, but are not limited to: inundation, saturation, water marks, drift lines, <br /> sediment deposits, and a thin muck surface. Potential secondary indicators of wetland hydrology <br /> may include, but are not limited to: surface soil cracks, drainage patters, saturation visible on <br /> aerial imagery, and the FAC-neutral test. <br /> 3635 Togo Road, Wayzata MN- Wetland Delineation Page 4 <br /> ISG Project No. 17-20520 <br />