Laserfiche WebLink
, ARTICLE XI. WETLANDS PROTECTION Page 5 of 12 <br /> h. Buffer areas (both natural and created), shall be protected by silt fence during <br /> construction and the fence shall remain in place until the area crop is <br /> 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 <br /> Orono Surface Water Management Plan (SWMP) (December 2002). A protection classification <br /> has been assigned to each wetland in Orono based on the stormwater susceptibility and <br /> functional assessment for each wetland. The four protection classifications are described as <br /> follows: <br /> TABLE INSET: <br /> Protection Susceptibility <br /> Classification Rating Description <br /> Highly Highly susceptible to both quantity and quality impacts from <br /> "Preserve" Susceptible runoff; have the highest degree of protection <br /> Moderately Moderately susceptible to quantity and quality impacts; <br /> "Manage 1" Susceptible protection is less stringent than Preserve, provides <br /> protection to maintain their characteristics <br /> Slightly Less stringent protection than Manage 1 wetlands; <br /> "Manage 2" Susceptible maintenance of characteristics is desirable <br /> Least Wetlands are significantly degraded (e.g., cultivated or <br /> "Manage 3" Susceptible canary grass monotype) or lack of wetland characteristics; <br /> not typically impacted 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 Management <br /> Classification Map & List" which is hereby adopted by reference, a copy of which shall be kept <br /> on file in the office of the city clerk and shall be available for public review during all normal <br /> office hours. The following are the required buffer area widths for each protection classification: <br /> TABLE INSET: <br /> Width of <br /> Buffer <br /> Protection Area Additional Protection Requirements <br /> Classification from (B = Bounce = Change in water level due to runoff event) <br /> Wetland (P = Phosphorus) <br /> Boundary <br /> B: Maintain bounce at or below existing conditions <br /> "Preserve" 50 feet P: Limit loadings to predevelopment loading (0.14 <br /> Lbs./Ac/Yr) <br /> B: Maintain bounce at or below existing conditions plus 0.5 <br /> "Manage 1" 35 feet foot <br /> P: Limit loadings to predevelopment loadings times 2 (0.28 <br /> Lbs/Ac/Yr) <br /> B: Maintain bounce at or below existing conditions plus 1.0 <br /> foot <br /> http://library3.municode.com/default/DocView/13094/1/109/120?hilite=78 1601; 7/18/2008 <br />