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, , . <br /> ������� ��������� <br /> 1lceording�to fhe 1987 U:S. Army Corps of Engineers "Weflands Delineation Manual" (1987 <br /> 1Vlanual;the document used by all deIineators to define wetlands) a wettancl is "Those areas that <br /> are inundated.or 5aturated by surface or ground water at a frequency anii duration sufficient to <br /> support, and that under normal circumstances do support, �a prevalence of vegetation typically <br /> adapted for life in saturated soil conditions." The IvYinnesota State Wetland Conservation Act . <br /> . . Rules, Chapter 8420,further clar�fies that "...wetlands must: (1} have a predorriinance of hydric <br /> soi�s; t2) be inundated or saturated by surface water or:groundwater at a frequency and duration � <br /> sufficient to support a prevalence of hydroph�tic vegetation typically adapted for life in saturated <br /> sQil conditions; and (3) under normal circumstances, support a prevalence of hydrophytic <br /> vegetafiion" The T987 U.S. Army Corps of Engineers Nlanual in.Part II, item 24. states that, <br /> "The interaction of hydrology, vegetafion, and soil results in the development of characteristics <br /> unique to we�lands. Therefore, the following technical guide�ines for weflands are based on fhe <br /> three parameters, and diagnostic environmental characteristics used in applyinb the technical <br /> guideline are xepreserited�:by various indicators of these parameters." It is this premise by which <br /> 5ER ecologists has, in their professional judgment,.c�elineated the wetlands on the subject parcel <br /> described in this r.eport. <br /> Wetland Hydrology . <br /> The most important wetland criterion is hydrology. The presence and persistence of water. <br /> ,influences the vegetation types and.changes soil :morphology. Hydrology may be obserued as <br /> standing water(inundat'ion).,:or may be observed as freestanding water within the soil pit or auger <br /> hole (saturation) usaally witiun the upper 12 inches. This is what would be considered primary <br /> hydrology indicators: Only,one primar,y indicator is ,necessary to make the determination that <br /> wetland hydrolog:y indeed exists. The 1987 Corps iVlanual also has a range of hydrologic zones <br /> established based on period of inundation or satur�tion. These zones and the periods of <br /> inundation or saturation for each can'be observed in Table 1 below: <br /> Exce ted from the 1987 Manual,H drolo ic Zones—Nontidal Areas <br /> Zone IVame Duration Comments Wetland or Not <br /> I Permanently Inundated l 00% Inundation>6.6 ft.mean Noe(Aquatic Habitat Zone,or Deep Vlater <br /> water de th Habitat) <br /> Semipermanenfly To Nearly c�$_ Inundafion defined as <br /> IT Permanenfl��Inundated Or ��00% �6.6 feet mean water Wetland <br /> Saturated de th . <br /> � Regularly Inundated Or �25-75% �Vetland <br /> Saturated • • <br /> � Seasonally Inundated Or <12:5- Wedand <br /> Saturated 2�% <br /> Ivtany areas having fhese <br /> Irregularl��Inundated or Wetland(if hydrophytic vea.and hydric <br /> V ! >5-12:5% hydrologic:characteristics soils also present <br /> Satucateci <br /> are no�wetlands <br /> TntermiFtentty Or Never Areas with these <br /> Vj 1 Inundated Or Saturated <$`�o hydrologic characterisdcs Not <br /> are not wetiands <br />