Laserfiche WebLink
EXECUTIVE SUMMARY WETLAND INVESTIGATION SIXTH AVENUE PROPERTIES <br />ORONO, MN <br />May 24, 2024 P a g e 3 EXECUTIVE SUMMARY Anderson Engineering of Minnesota, LLC was retained to provide professional wetland services using the 1987 United States Army Corps of Engineers Wetland Delineation Manual (Technical Report Y-87-1; January 1987) and all supplemental guidance documents to identify areas meeting wetland criteria at Hennepin County parcels 2911823430002, 2911823430011, 2911823440004, and 2911823440006 near 3465 and 3515 Sixth Avenue North located in Orono, Minnesota. This project area is in Section 29, Township 118 North, Range 23 West. Delineated aquatic resources or, portions thereof, were identified and delineated within the project area and summarized in Table 1 and depicted in Appendix A, Figure 5. This document is a revision of the report submitted on May 2nd, 2024, revised May 24th, 2024. All revisions are shown in red font. On May 22nd, 2024, the TEP review determined the Type 1 portion of Wetland 1 was better characterized as an ephemeral tributary. An additional Wetland, Wetland 5, was added. This Wetland is listed below and shown in Appendix A, Figure 5. Appendix B, data sheets 5A and 5B, document data collected along a transect of this Wetland boundary. The western boundary of Wetland 4 was moved downslope eastward towards Lake Classen. Additional sample points transecting this adjusted Wetland boundary were taken. Appendix B, data sheets 4E and 4F, document the data collected at this transect. The Minnesota Department of Natural Resources representative made an onsite determination that the 974.5 contour line marking the OHWL of Lake Classen did not accurately reflect the purpose or intent of the Public Waters Work program. The adjusted OWHL as interpreted by the MnDNR representative is shown in Appendix A, Figure 5. Table 1. Summary of delineated aquatic resources, corresponding sizes, and wetland type classifications. RESOURCE RESOURCE TYPE APPROXIMATE SIZE1 RESOURCE TYPE CLASSIFICATION MnRAM Classification CIRCULAR 39 COWARDIN EGGERS & REED 1 Wetland 0.18 Ac Type 3 PEM1C Shallow Marsh Manage 2 2 Wetland 0.17 Ac Type 2 PEM1B Fresh Wet Meadow Manage 2 3 Wetland 0.01 Ac Type 1 PFO1A Floodplain Forest Manage 2 4 Wetland 1.67 Ac Type 2/3/5 PUBHx/EM1C/B Fresh Wet Meadow/Shallow Marsh/Deep Marsh Preserve 5 Wetland 0.01 Type 2 PEM1B Fresh Wet Meadow Manage 2 A Ephemeral Tributary 196 L.F. Type 90 R6SB Channel N/A <br />Lake Classen Lake 0.04 Type 3 PEM1C Shallow Marsh N/A 1 Approximate size within the project area expressed in acres (ac), square feet (SF), or tributary linear feet (LF). Areas less than 0.01 acre are presented in square feet. <br />263