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h. Buffer areas (both natural and created), shall be protected by silt <br /> fence during construction and the fence shall remain in place until <br /> removed. <br /> (edd} : . :. . : ,.,, :_ .. .. The City of Orono has established <br /> wetland protection strategies established in the Orono Surface Water Management <br /> Plan (SWMP) (December 2002 January 2011). A protection classification has <br /> been assigned to each wetland in Orono based on the stormwater susceptibility <br /> and functional assessment for each wetland. The City has also established <br /> additional protection requirements for each classification. The four protection <br /> classifications are described as follows: <br /> Protection Susceptibility Description Additional Protection Requirements <br /> Classification Rating B=Bounce=Change in water level due <br /> to runoff event) <br /> (P=Phosphorus) <br /> "Preserve" Highly Highly susceptible to both quantity and B:Maintain bounce at or below existing <br /> Susceptible quality impacts from runoff; have the conditions <br /> highest degree of protection P:Limit loadings to predevelopment <br /> loading(0.14 Lbs./Ac/Yr) <br /> "Manage 1" Moderately Moderately susceptible to quantity and B: Maintain bounce at or below existing <br /> Susceptible quality impacts;protection is less conditions plus 0.5 foot <br /> stringent than Preserve,provides P: Limit loadings to predevelopment <br /> protection to maintain their loadings times 2(0.28 Lbs/Ac/Yr) <br /> characteristics <br /> "Manage 2" Slightly Less stringent protection than Manage B: Maintain bounce at or below existing <br /> Susceptible 1 wetlands;maintenance of conditions plus 1.0 foot <br /> characteristics is desirable P: Limit concentration to <br /> predevelopment concentrations(200 <br /> ppb) <br /> "Manage 3" Least Wetlands are significantly degraded B:No quantity requirement <br /> Susceptible (e.g., cultivated or canary grass P:Limit concentration to 225 ppb <br /> monotype)or lack of wetland <br /> characteristics;not typically impacted <br /> by runoff;no quantity and only limited <br /> quality treatment of runoff is required • <br /> The protection classification for each wetland will be found on the "Wetland <br /> Management Classification Map & List" which is hereby adopted by reference, a <br /> copy of which shall be kept on file in the office of the city clerk and shall be <br /> available for public review during all normal office hours. The Minnehaha Creek <br /> Watershed District required buffer area widths are based on the four protection <br /> classifications. The following are the required buffer area widths for each <br /> Page 5 of 13 <br />