01-25-1999 Council Packet - Laserfiche WebLink

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Soil pits were made earlier that day for percolation tests. Severai of the tes: holes v/ere open and could be observed for soil color and texture. Soil colors were deienrJnec by matc'ning ihem to a Munsell Soil Color Chart. The soils were examined for hydric characteristics suca as: low chroma, organics, mottling, gleying, and moisture. Soil samples were observed at points inside the basins with some wetland characteristics, at the basin/wetland edge, and into the upland zones. The soil pits were marked with orange stake flags labeled “A” ’viihin the wetland, “3” at the wetland edge, and “C” at the upland pit. Conditions at the soil p-ts near the dehneZiew wetland edges are described on attached Data Forms. The wetland edge is usually determined to be near the point where evidence or subsunace water is within 12" of the ground elevation, where at least 50% of the vegetation is hydrophytic, and where hydric soil is encountered. In the areas delineated as wetlanas at this site, the identifiable vegetation was more than 50% hydrophytic and hydric soils plus evidence of wetland hydrology were found. Wetland 1 is mostlv a T>pc 6 wetland with reed canarv' grass (T>pe 2) areas at the fringe. The wetland is designated on the NWI map as PFOlCd/PEMCd. The wetland has a variety of vegetation including dominants of willows, red-o>ier, and reed canary' grass. There are ferns, • willow shrubs and aspen near the wetland edge. There is some upland golden rod (Solidago * canadensis) just upgrade of the wetland edged. The soil characteristics were rv pica! ot Hamel loam. There was no standing water in the wetland and no water in the pits i placed wire stakes with numbered pinJe flags at the edge of this w etland basin. I also placed wire stakes with orange flags at the soil pits notec on ue auacnec Data rerms. The flags are labeled “A” in the wetland ‘'B” at the wetland edge, and ‘C" at an upland pit Data Forms - Routine Onsite Determination Method were compieied for conditions at the wetland and are attached to this report. Other small patches of reed canary grass with aspen or willows were noted. However, those areas also included upland vegetation such as fescue, smooth broms and oaxi i lOund only the one wetland basin described above on thus prcceny. The Minnesota rules require that designers attempt to avoid wetland impacts. If your plans include fill or grading in the wetland basins, you will need a Wetland Alteration Permit from the Minnehaha Creek Watershed District (MCWD). The delineated wetland edge must be shown on your grading plan. Please contact me at 612-974-9856 with any questions regarding wetland issues for this site. 9S082u<r_Girtfn^<ry Orono