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outlined in the rules adopted by the Board of Water and Soil Resources to implement the <br />Wetland Conservation Act of 1991 including any and all amendments to it. <br /> <br /> Subdivision 3. Work in and around wetlands must be guided by the following principles <br />in descending order of priority: <br /> <br />A. Avoid both the direct and indirect impact of the activity that may destroy or <br /> diminish the wetland. <br />B. Minimize the impact by limiting the degree or magnitude of the wetland <br /> related activity and its implementation. <br /> <br />C. Rectify the impact by repairing, rehabilitating, or restoring the affected <br /> wetland environment with one of at least equal public value. <br /> <br />D. Reduce or eliminate the adverse impact over time by preservation and <br /> maintenance operations during the life of the activity. <br /> <br />9.27.14 Vegetated Buffer Protection for Rivers, Streams and Wetlands. <br /> <br />The city has established a wetland buffer ordinance specifying minimum setbacks from wetlands <br />in the city. Setbacks are also established for the rivers that border the city and the lakes internal <br />to the city. <br /> <br /> A. Detailed buffer design is usually site specific. Therefore the city engineer <br /> can require a larger buffer than the minimum. <br /> <br />Bo <br /> <br />For newly constructed buffer sites the design criteria should follow common <br />principles and the example of nearby natural areas. The site should be <br />examined for existing buffer zones and mimic the slope structure and <br />vegetation as much as possible. <br /> <br />C. Buffer design and protection during construction should do any or all of the <br /> following: <br /> <br />1 .) slow water runoff, trap sediment, enhance water infiltration, trap <br /> fertilizers, pesticides, pathogens, heavy metals, trap blowing snow and <br /> soil, and act as corridors for wildlife. <br /> <br />D. During construction temporary sedimentation basins are required for <br /> disturbed areas over one (1) acre. <br /> <br />E. Buffer plant selection shall give preference to natural plants with deep root <br /> systems over cultivated species with shallow root systems. <br /> <br />Should we require a performance bond on the buffer just Iike landscaping? <br /> <br />Draft StormWater Ordinance <br /> <br />Page 14of20 <br />January 20, 2006 99 <br /> <br /> <br />