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Jacobson Environmental, PLC www.jacobsonen inonmen l.com Environmental Consultants Wayne Jacobson, P,S.S., W. .C., P.W.S., A.F.S. 5821 Humboldt Avenue North, Brooklyn Center, MN 55430 1(612) 802-6619 Cell Email: jacobsonenv@msn.com With the 50/20 rule, dominants are generE Ily measured by absolute °/ cover in each stratum which individually or collectively account for mora than 50% of total vegetati a cover in the stratum, plus any other species which itself accounts for at I ast 20% of the total vegeta iue cover. Soils A hydric soil is a soil formed under conditi ns of saturation, flooding, or ponding long enough during the growing season to develop anaerobic con itions in the upper part. If soil exhibi the indicators of a hydric soil or is identified as a hydric soil t e hydric soil criterion is me . The break between hydric and non -hydric soils was determined by ex crossing the wetland/upland eco -tone and evaluating the soil colors, t of redoximorphic indicators (i.e., mottles, c ley or oxidized rhizosphere Midwest Region were noted as presented in the National Technical C Indicators of Hydric Soils in the United States version 7.0 (USDA NR( point. Also, upper soil profiles were comp red to the mapped or inclu sample area for soil identification purpose $. There are hydric soils with morphologies t or red parent material; soils with high pH; developed hydric soils, and soils high in in assist in the identification of hydric soils in hydric soil, the lack of an indicator does n( developed mostly to identify the boundary Not all of the obviously wetter hydric soils most likely to occur in soils that cycle betA at are difficult to interpret. oils high or low in content n inputs. In some cases v :hese situations. As long i preclude the soil from be )f hydric soil areas and ge gill be identified by the indi yen anaerobic (reduced) a Morphological features of hydric soils indic to that saturation and ana( under either contemporary or former hydrologic regimes. Where soil r the landscape, vegetation, or observable h drology, it may be necess, experienced soil or wetland scientist to det rmine whether the soil is h To clarify on some Anoka County sites, 1. Many of these soils have black or 2. Many of the soils have a high orgy 3. The hydric soil margin is typically 4. Not all of the obviously wetter soil 5. Many of the hydric soils are Mollis Wetland Classification lray parent materials iic matter content igher than the wetland bou will be ident fied by the ind Is which are classic proble Wetland classifications discussed in the to t are set forth in Wetlands United States (FWS/OBS Publication 79/31, Cowardin et al. 1979) an (USFWS Circular 39, Shaw and Fredine, 1 71.) Additionally, plant co and Reed (1998) are given. Wetland Delineation -Mitigation -Permitting- onitoring-Ban king- Functio Phase I Environmental Assessments-EAW's Soil ID -Soil Analysis & Deli Pond & Lake Weed Control & Fish Stocking Tree Surveys -Natural Resc vating soi pits along transects lures, and presence or absence Hydric Soil Indicators for the imittee for Hydric Soils Field 2010) if present at each sample Nnary soil Series found in the 'hese inclu a soils with black, gray, organic matter, recently do not cur ently have indicators to the soil meets the definition of a 3 hydric. Tie indicators were orally work est on the margins. itors. Red ximorphic features are J aerobic (c xidized) conditions. rabic conditions have existed orphology eems inconsistent with ry to obtain the assistance of an ,dric. i ary margin on the site Mors hydric soil in many cases nil Deeiowe ter Habitats of the Wetlands c f the United States munity typ s as named by Eggers ialysis- & E Surveys 3 m-Envi onmental Referrals Manaq ment Plans