Laserfiche WebLink
x r+ � <br /> VVETLAND D�FII�IITIUIY <br /> Accarding ta the 1987 U.S, Army Corps of Gngineers "Wetl�nds I�elineatiQn 141anu�l" (1987 <br /> Manu�l; the clocument used by ail delineators ta detine �vetlands) a �veNanci is "`I'hose areas chat <br /> are inunc�alcd c�r s�tur�tecl by surface c�r ground watcr at a fi�caucncy and duracion sufficient to <br /> siipporl, �nd that undcr norm�l circumstAnccs do suppctrl, t� prGvalc;cicc of vc�ctation l��pically <br /> ad�pecd for life in saturnted soil conditions:' 1'he Minncsota 5tute Wcllund Gonscrv�tion Act <br /> (tules, Chnpter 8420, fw•ther clari Fies that"...wetlands must: (1) have a 4�red��minance of hydric ' <br /> soils; (2) F�c inundatcd or saturated Uy surface water ar brcaundtvatei•at a ii�ucncy and duratian <br /> sutlicient to suppart a prevalcnce of hydrophytic vegetation t�r�?tCe'IIIy adapt�d for life in satu�ated ' <br /> soil e4ndilions; und (3) uncler normnl circumstances, supE�o�•t u prc���lence a(' hyclrophytic <br /> vegetatian." Tlie 1987 U.S. Army Corps of Engineers Manu11 in Part li, item 24, states th1t, <br /> "Tl�c interaction oF hydroingy, ve�ctacian, and soll restilts in thc develohn�cnt of charr�cteristics ' <br /> unique to wetlands. 't'hereFoi�e, the following technic�►I �uidelines for�vetl�nds are ha:�ct on the <br /> threc �arameters, .ind clis��;nostic em�ironmental characteristics used in applying tlie technical <br /> guideline are represented by various indicaturs of these parameters:' It is this pmmise by whicli <br /> SER ccologisls has, in their piol'essio�al juelbm�nt,delineated the wetlAnds on the suUjec:t pt�rcel <br /> desc:ribed in this rc�rt. <br /> Wetland liydrology <br /> 'I"lie most important weUand criterion is hydrology. 'I'he presence und persistence aF watcr <br /> int�uences the vebetatinn types And chan�es soil morpliolo�y. Hydrolagy may t�e abserved as <br /> standing�vater(inundation},or may be observed ns freestz�nding water�vithin th�soil pit c�r auger <br />' hale (sa�uration) usually within the upper 12 inches. This is what w�c�uld t� cnnsidered primary <br /> hydrolo�y indic;atars. Only one primary indicator is necessary tn make tl�e d�cerminatian that <br /> wcllt�nd hydrnlogy indecd cxists. 'I'hc 1987 Corps Manua) afsn has a ranbc of hydre�lo�ic zones <br /> cstablishcd bAsed an period of inunduticm or snturation. 'I'llese zones ��id the peric►Js vf <br /> inundntion oc suturntion for cach c�n bc observed in Table 1 belotiv. <br /> Exec ted fmm the 19R7 Manual.l�l dmlo ic%anes—Nontidal Area� <br /> 7.one Name Durati�n ('omntents Wetl�nd nr Nat <br /> 1 Pernwnenlly Irnmdated �p�}a/o InundaUon>G.6 tl.mean Not(Aquatia Nabitat Zonc:.or Ucc;p Wuter <br /> �vater d h Habital <br /> SemipermancnUy'1'o Ncarly Inundalion defined as <br /> !1 Permanently Inundated Ck �So �6.G feet mc:an water Wctland <br /> Satumted {I OO lo de h <br /> ��� Rc.�ularly Inurnlatcd Or a�5-75"/tl VVetlnnd <br /> Salurated <br /> IV Seas�xially Inu�ted Or <12.5- WdUand <br /> Spturated 259�6 <br /> [rrc�ularly Inundated ot a Many grcas having tltcs�e �yeUand{if hydrophytic v�:�.and hydric <br /> V Snturated >5-12.5 fo hydr�logic chAractcristics ��ly alsa prGsent <br /> are nat w�;llgnds <br /> Intermittently Or Ncver a Areas►viUi these <br /> VI �nundntcd Or Saturat�d '`S� hydrologic cl�arr�cctcristics Not <br /> �re not a�cl land.c <br /> A-1 <br />