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Ceil Strauss <br />March 23, 1994 <br />Page 2 <br />The chanee to a Natural Environment lake classincation for t^ two basins resulted in a more <br />Sn^^o d increase in structural setback requirement and doubtog of the ^ued st^uc <br />^^b«k. However, the nature of these two bt^ .s so ut^^t of the typical lake <br />tolTt^t justification of the increased sed»cks has been extremely difficult. <br />FoUowing is a paragraph characterizing each of the three French Lake basins: <br />Sewage Lagoon: <br />• NWI classification: PUBKGx <br />I 700- X 1000- depth Wow outM <br />approxtoately 3-4 ’ but watershed may be too smaU to sustam significant <br />own water depth; has never been dredged to remove sewage sediments; <br />w^ constructed ca. 1962, ceased operation ca. 1982; currently con^ <br />significant emergent wetland vegetation; is intended to be preserved by <br />City as a nature/wildlife area with perimeter hiking trail. <br />North Basin: <br />NWI Classification: PSSl/EMC; PEMC <br />Area: 82 acres approximately <br />Description: No open water except in remnants of ditch system (pre- <br />1950s); wetland types include Type 3 (east, southe^t quadrants) <br />Marsh and Type 6 Shrub Swamp (west half) containing many dead 6 <br />10- nature trees which likely were affected by constmetion of sewage <br />lagoon ca: 1962 (which may have somewhat raised the water table). <br />Compare the 1955 and 1989 air photos enclosed. <br />South (Main) Basin: <br />NWI Classification: UUBH; PEMlFd . <br />Area: 100 acres approxinaately (of which approximately 23 acres is open <br />D«Sption: Open water basin, depth unknown, surrounded by <br />marsh (Types 3-5); floating bogs common; distinct namral channel <br />outletting to Crystal Bay, Lake Minnetonka.