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Environmental Consultants Wayne Jacabson, P.S.S., W.D.C., P.W,S.,A,F.S. <br /> -------------------------------- <br /> ----------------------------------------------- <br /> 5821 Humboldt Avenue North, Brooklyn Center, MN 55430 {612)$02-6619 Cei! <br /> Email: jacobsonenv@msn.com <br /> S6 Stripped Matrix. A layer starting within 6 inches of the soil surface in which iron-manganese <br /> oxides and/or organic matter have been stripped from the matrix and the primary base color of the soil <br /> material has been exposed. The stripped areas and translocated oxides andlor organic matter form a <br /> faintly contrasting paitern of two or more colors with diffuse boundaries. The stripped zones are 10 <br /> percent or more of the volume and are rounded. <br /> User Notes: This indicatar includes the indicator previously named"polychromatic matrix"as wefl as the <br /> term "streaking°. Common or many areas of stripped(unmasked)soil materials are required. The <br /> stripped areas are typically Q.5 to 1 inch in size but may be larger or smaller. Commonly, the stripped <br /> areas have value of 5 or more and chroma of 1 and/or 2, and the unstripped areas have chroma of 3 <br /> and/or 4. The matrix(predominant color}may not have lhe material with chroma of 3 and/or 4. The <br /> mobilization and translocation of oxides and/or organic matter is the important process and should result <br /> in splotchy masked and unmasked soil areas. This may be a difiicult pattern to recognize and is more <br /> evident�vf�en a horizontal slice is observed. <br /> F9 Loamy Mucky Mineral. A layer of mucky modified loamy or clayey soil material 4 inches or <br /> more thick starfing within 6 inches of the soil surtace. <br /> User Notes:"Mucky"is a USDA texture modifier for mineral soils. The content of organic carbon is at <br /> least 8 percent bu#can range to as high as 18 percent. The percentage required depends on the clay <br /> content of the soil; the higher the clay content,the higher the content of arganic carbon required. An <br /> example is mucky sandy loam,which has at least 8 percent organic carbon but not more than about 14 <br /> percent. <br /> F2 Loamy Gleyed Matrix. A gleyed matrix that occupies 60 percent or more of a fayer starting <br /> within 12 inches of the soil surface. <br /> User Notes Gley colors are not synonymous with gray colors. They are the colors on the gley colar <br /> pages of the MunseJl color book. They have a hue of N, 10Y, 5GY, 10GY, 5C, 10G, 5BG, 10BG, 5B, <br /> 106, or 5P6 and value of 4 or more. The gleyed matrix only has to be present within 12 inches of the soil <br /> surtace. Soils with gleyed matrices are saturated for periods of a significant duration;as a result, there is <br /> no thickness requirement for the layer. <br /> F3 Depleted Matrix. A layer that has a depleted matrix with 60 percent or more of chroma 2 or less <br /> and that has a minimum thickness of either: • <br /> a, 2 inches if the 2 inches is entirely w'rthin the upper 6 'rnches of the soif, or <br /> b. 6 inches, starting within 10 inches of the soil surface. <br /> User Notes; A depleted matrix requires a value of 4 or more and chroma of 2 or less. Redox <br /> concentrations, including soft iron-manganese masses and/or pore linings, are required in soils with <br /> matrix c�lors of 4/1, 4/2, or 5/2. A, E, and calcic horizons may have low chromas and high values and <br /> may therefore be mistaken for a depleted matrix; however, they are excluded from the concept of <br /> depletecf matrix unless the soi! has common or many distinct or prominent redox concentrations occurring <br /> as soft masses or pore linings. The low chroma matrix must be the result of wetness and not a <br /> weathering or parent material feature. <br /> Wetland Delineation-Mitigation-Permitting-Monitoring-Banking-Functional Analysis-T&E Surveys 7 <br /> Phase I Environmentaf Assessments-EAW's-Soil Ip-Soil Analysis & Delineation-Environmental Referrals <br /> Pond & Lake Weed Control & Fish 5tocking-Tree Surveys-Natural Resource Management Plans <br />