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.�acobson Environmental, PL�C www.jacobsanenvironmental.com <br /> Envir�mental Consultants Wayne]acobson, P.S.S., W.D.C., P.W.S., A.�.S. <br /> -------------------------------•------------------------__.-----------------------------------___----------- <br /> 5821 Humboldt Avenue North, Broakiyn Center, MN 55430 (612) 802-b619 Cell <br /> Email: jacobsonenv�msn.00m <br /> To clarify on some Hennepin County sites, <br /> 1. Many of these soils have black or gray parent r�atecials <br /> 2. Many of the soils have 2� high organic matter cantent <br /> 3. The hydric soil margin is typically higher than the wetland boundary margin on the site <br /> 4. Not al1 of the obviously wetter soils will be identified by the indicators <br /> 5. Many of the hydric sails ar+e Moll�sols which are Gassic prablem hydric soils in many cases <br /> H d_ v rolo�lt <br /> The presence of current wetland hydrology was determined through direct observation of free water in the <br /> excavated soil pit, saturated soil conditions or soil redoximorphic features_ Howe�er, the effect of on- or <br /> aff-site hydrologic alterations may not always fuily be accounted for when routine delineation methods are <br /> used. <br /> Wetland Ciassification <br /> Wetland classifications discussed in the text are set forth in Weilands and Daepwafer Habitats of the <br /> Unrted Sfafes(FWS/OBS Publication 79l31, Cowardin et al. 1979) and Wetlands ofthe United Slates <br /> {USFWS Circular 39, Shaw and Fredine, 1971.}Additionally, plant community types as named by Egger� <br /> and Reed (i998} are given. <br /> Topographic maps, National We�ands Inventory maps, the Web Soil Survey, Aerial Photographs, and <br /> DNR Protected Waters maps were consulted to locate potential wetland habitats. <br /> The Routine On-site Determination Method was used on this site. In this method, the folfowing <br /> procedures were used: <br /> 1) The vegetative community was sampled in afl present strata to determine <br /> whether 50%of the dominant plant speraes were hydrophytic using the 50/20 method. <br /> 2) Soil pits were dug using a dutch auger to depths of 18"-40", noting soil profiles and any <br /> hydric soiE characteristics. <br /> 3) Signs of wetland hydrology were nated and were compared to fieid criteria such as depth <br /> to shallow water table and depth of soil saturat�an faund in the soil pits. <br /> Wetland edges were marked with orange numbered pin flags. 4-foot�rood lath marked with orange <br /> "wetland boundary" flagging tape or flagging tied on vegetati�n may be used if site conditions warrant. <br /> Any wetlands were mapped by others using madem survey methods. At least one sample poEnt transect <br /> crasses each delineated wetland edge. These transect:>consist of an upland sample point, and a <br /> wetland sample point. Other sample points may be loc��ted in areas which have one or more of the <br /> wetland vegetation, soils, or hydrologic characteristics present, or where questionable conditions exist. <br /> SampEe points are marked with orange pin flags with a pink ribDon tied an them. Sample data sheets are <br /> found in Appendix B. <br /> Wetland Delineati�n-Mitigation-Perrnitting-Manitoring-B�nking-F�nctional MaEysis-T & E Surveys 4 <br /> Phase I Environmentai Assessments-�AW's-Soil ID-Soi1 �nalysis & Delineaqon-Environmental Referrals <br /> Pond & Lake Weed Control & Fish 5tocking-Tree Surveys-Natura! Resource Management Plans <br />