06-27-2005 Council Packet - Laserfiche WebLink

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EXHIBIT D Plants were identified using standard regional plant keys. Taxonomy was based on the Manual of Vascular Plants of Northeastern United States and Adjacent Canada, Ed. 2 (New York Botanical Garden, 1991). Indicator status of plant species was taken from the National List of Plant Species That Occur in Wetlands: 1988 Minnesota (U.S. Fish & Wildlife Service, 1988). ffl. RESULTS Review of Soila. NWl. DNR and FSA InformatioB The National Wetland Inventory Map (NWI) (Excelsior Quadrangle, U.S. Fish & Wildlife Service, 1999) showed one (1) PUBF wetland, one (1) R2UBH wetland, and one (1) large PEMF wetland locat^ within site boundaries (Figure 3). The SoU Surv^ efHennepin County, Minnesota (Sheets 43 and 51, USD A, 1974) showed the following soil types on the site: Erin loam (En), Glencoe (Gc), Hamel loam (Ha), Kilkenny lorn (Kk), Lester loam (Lr), and Marsh (Ma) - Figure 4. Glencoe, Hamel and Marsh are hydric soils indicative of wetla^ conditions when undrained. The DNR Protected Waters Mop, Hennqtin Comity (Sheet 1 of 4, Minnesota DNR, 1983) indicated DNR Protected Wetland 859W on the southern half of the site (Figure 5). Detenuluationg and Delineations Potential wetlands were evaluated in greater detail during field observations on May 27,2004. Four (4) wetlands were identified and delineated on the subject site (Appendix A). Corresponding data forms are included in Appendix B. The following description of the wetlands and surrounding t^land reflects field conditions observed at the time of the delineation. At dut time, vegetation was actively growing and temperatu res were in the 60 ’s and spring hydrology was assumed normal. Wetland Ivnsa Type 3 (PUBFx/PEMB/A) wetland located vrithin a depression and connecting ditch/swale in the northwest comer of the site. Dominant vegetation consisted of algae and duckweed widi lesser amounts of willow in the center of the wetland depression. Dominant vegetation *!«"£ dm perimeter of the wedand consisted of needle spikerush and reed canary grass with lesser amounts of creeping Charlie, sedge and buckthorn. Soils observed below the wedaikl boundary woe mapped as Glencoe a^ were fiundy mottled, black clay loam to 24 inches. Soils were saturated at the surface and fiee water was observed at 4 inches below the soil surface. Secondary indicators of wetland hydrology included mapped hydric soil, the FAC* Neutral Test and topogrq>hic position. Adjacent iq>land was mowed lawn dominated by Kentucky bluegrass with lesser amounts of creeping Charlie, dandelion and yellow nutsedge. Upland soils were nupped as Glencoe and were black clay loam to 18 inches, underlain by very dark gray clay loam to 24+ inches. Free water was observed at 14 indies below the soil sur&ce. Map^ hydric soil was the only secondary indicator of hydrology observed. ami