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, <br /> , S� <br /> e. Native prairie grasses and forbs shall be planted by a qualified contractor. <br /> f. No fertilizer shall be used in establishing new buffer zones,except on highly disturbed sites when <br /> deemed necessary to establish acceptable buffer vegetation and then limited to amounts indicated by an accredited <br /> soil testing laboratory. <br /> g. All seeded areas shall be mulched immediately with clean straw at a rate of one and one-half tons <br /> per acre. Mulch shall be anchored with a disk or tackifier. <br /> h. Buffer areas(both natural and created), shall be protected by silt fence during construction and the <br /> fence shall remain in place until the area crop is established, and at that time the fence shall be removed. <br /> (c) Buffer area widths will be based on the wetland protection strategies established in the Orono <br /> Surface Water Management Plan (SWMP) (December 2002).A protection classification has been assigned to each <br /> wetland in Orono based on the stormwater susceptibility and functional assessment,for each wetland.The four <br /> protection classifications are described as follows: <br /> Protection Susceptibility Rating Description <br /> Classification <br /> "Preserve" Highly Susceptible Highly susceptible to both quantity and quality impacts from <br /> runoff; have the highest degree of protection <br /> "Manage 1" Moderately Moderately susceptible to quantity and quality impacts; <br /> Susceptible protection is less stringent than Preserve, provides � <br /> protection to maintain their characteristics <br /> "Manage 2" Slightly Susceptible Less stringent protection than Manage 1 wetlands; <br /> maintenance of characteristics is desirable <br /> "Manage 3" Least Susceptible Wetlands are signi�cantly degraded (e.g., cultivated or <br /> canary grass monotype) or lack of wetland characteristics; <br /> not typically impacted by runoff; no quantity and only <br /> limited quality treatment of runoff is required <br /> The protection classification for each wetland will be found on the "Wetland Management Classification Map List" <br /> which is hereby adopted by reference,a 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 following are the required buffer area widths for each <br /> protection classification: <br /> Protection Classification Width of Buffer Area Additional Protection Requirements (B= <br /> from Wetland Bounce=Change in water level due to <br /> Boundary runoff event) (P= Phosphorus) <br /> "Preserve" 50 feet B: Maintain bounce at or below existing <br /> conditions P: Limit loadings to <br /> predevelopment loading (0.14 Lbs./Ac/Yr) <br /> "Manage 1" 35 feet B: Maintain bounce at or below existing <br /> conditions plus 0.5 foot P: Limit loadings to <br /> , ' predevelopment loadings times 2 (0.28 <br /> Lbs/Ac/Yr) � <br /> � <br />