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Long Lake Improvement Project <br />Wetland Impacts and Mitigation <br />Long Lake Citv Pack <br />Ue existing sedimenQdon basins on the site were constructed tor the purpose of water qualits- <br />treatment and are therefore not considered weUands. However, the proposed project involves no <br />fiUing and will enlarae and deepen the existing basins. The project wiU also provide a 10-foot <br />wide shelf with a 10:1 slope surrounding the basin where wetland vegetation will be planted. The <br />MC\VD has budgeted S20.000 for planting of wetland vegetation. The MCWD feels the project <br />WiU improve the quantity and quality of wetland habitat and requires no additional mitigation. <br />County Road No. <br />.Si two cell wet detention basin/weUand is proposed to be constructed within a 3.33 acre easement <br />on private property south of County Road No. 6. The above basin wiU have a surface area of <br />approximatelv 2.5 acres. The project wUl impact 2.5 acres of PFOIC fType 7) weUand. Every <br />effort has been made to maximize the wetland function and values on site wtule stUl prov.dmg for <br />the requited water quaUty treatment wet basin volume. The basm system ts a now through system <br />so there is no bounce in water levels in either of the two cells. The second ceU wUl also receive <br />treated water after having passed through the first ceU. Wetland fringe suitable for submergent, <br />emergen, and wooded vegemtion will total 1.92 acres. The MCWD has budgeted $25,000 for <br />planting of wetland vegetauon. In addition to die above fringe wetland, the project contains 1.25 <br />acres of deep water habitat (depths greater than 6.5 feet). The total weUand and deepwater area is <br />3 17 (0 67 acres larger than the impacted wetland area). By considering the deepwater area from <br />die second ceU (0.76 acres) to be credited as midgation, die MCWD feels die project is basicaUy <br />self miniating. However, as added mitiganon for lost Type 7 wetland, the District is creadng an <br />addmon^ 1.54 acres of wooded wedand a. die Deer HiU Road site (1.41 acres of the wooded <br />wetland mitigation could be appUed towards the County Road No. 6 wedand impacts while the <br />remaining 0.13 acres would be used as part of the Deer HUl Road site midgadon). <br />N YD6193XTR-A£5-Jr*