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1 �. , <br /> y � . <br /> Ms. Barbara Walther ' <br /> Ms. Becky Houdek � �EC�IVED <br /> Mr. John Smyth <br /> January 15,2010 ��A� � $ 2010 <br /> Page 3 <br /> CITY OF ORONO <br /> The proposed proj ect includes one wetland impact, which includes approximately 0.19 acres(8,341 <br /> SF) of the project site. The wetland ixnpact will result from the construction of a stormwater pond <br /> within the existing drainage ditch. The pond will exhibit water depths of approximately 8 to 10 feet <br /> in the deepest portion, a fountain, and a rock rip-rap border. The applicant is proposing to provide <br /> on-site wetland mitigation adjacent to an existing drainage ditch/wetland and Mitigation Basin B, <br /> which was created as a part of the 2009 grading activities. Wetland replacement will be provided at a <br /> 2:1 replacement ratio. <br /> Wetland mitigation will be provided by converting an upland area adjacent to previously created <br /> Mitigation Basin B,located within the western portion of the golf course. In addition to the new <br /> wetland area the applicant will establish an upland buffer along the perimeter of Mitigation Basin B. <br /> PROPOSED WETLAND IMPACT <br /> The proposed project includes one wetland impact, which encompasses approximately 0.19 acres <br /> (8,341 SF) of the project area. Replacement of the wetland impact wetland will occur on-site at a 2:1 <br /> � replacement ratio. The proposed impact is due to the construction of a stormwater pond within an <br /> existing drainage ditch. The following provides a sununary of the proposed wetland impact. <br /> Impact 1 <br /> Approximately 0.19 acre (8,341 SF) of impact is proposed to Wetland 1. Wetland 1 was <br /> delineated in October 2008 as a Type 2 (PEMBd) drainage ditch/wetland. Dominant <br /> vegetation of the drainage ditch/wetland includes reed canary grass, cattail,jewelweed, and <br /> lesser duckweed. Impact 1 is proposed for the conshuction of a stormwater pond within the <br /> existing drainage ditch/wetland. Impact 1 will be replaced on-site adjacent to previously <br /> created Mitigation Basin B. <br /> WETLAND IMPACT SEQUENCING <br /> Alternatives Analvsis <br /> No BuildAlternative <br /> According to the MN�RAM assessment,the existing drainage ditch/Wetland 1 exhibits low <br /> to medium wetland functions and values. A no-build alternative would result in the applicant <br /> maintaining the low to medium quality drainage ditch as it currently exists. The existing <br /> drainage ditch e�ibits a dominance of invasive,non-native vegetation and steep sideslopes. <br /> Reed canary grass is the dominant vegetation species within the drainage ditch. Because of <br /> the thick dense cover established by the existing reed canary grass, other plant species have a <br /> � slight potential to become established, compete and survive in the current environment. In <br />