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Areas within the required setback area subject to filling, grading or excavation as part of a construction <br /> project shall be revegetated immediately upon completion of such earthwork. Setbacks must be verified <br /> with wetland delineation information. The determination of whether a Level 1 delineation or Level 2 <br /> delineation is required shall be at the discretion of the planning director. Level 2 delineation information <br /> shall be provided on a certified certificate of survey. The requirement for delineation shall be applied in <br /> cases where the wetland exists within 150 feet of the proposed project. <br /> (d) The City of Orono has established wetland protection strategies in the Orono Surface Water <br /> Management Plan (SWMP) (January 2011). A protection classification has been assigned to each <br /> wetland in Orono based on the stormwater susceptibility and functional assessment for each wetland. <br /> The city has also established additional protection requirements for each classification. The four <br /> protection classifications are described as follows: <br /> i Additional Protection <br /> Requirements <br /> Protection Susceptibility Description (B= Bounce=Change in <br /> Classification Rating I water level due to runoff <br /> event) <br /> (P= Phosphorus) <br /> B: Maintain bounce at or <br /> i <br /> Highly susceptible to both quantity and quality below existing <br /> Highly conditions <br /> "Preserve" impacts from runoff; have the highest degree <br /> Susceptible P: Limit loadings to <br /> of protection <br /> predevelopment loading <br /> (0.14 Lbs/Ac/Yr) <br /> B: Maintain bounce at or <br /> i <br /> below existing <br /> Moderately susceptible to quantity and <br /> conditions plus 0.5 foot <br /> Moderately quality impacts; protection is less stringent <br /> "Manage 1" P: Limit loadings to <br /> Susceptible than Preserve, provides protection to <br /> predevelopment <br /> maintain their characteristics <br /> loadings times 2 (0.28 <br /> Lbs/Ac/Yr) <br /> i <br /> B: Maintain bounce at or <br /> below existing <br /> Slightly Less stringent protection than Manage 1 conditions plus 1.0 foot <br /> "Manage 2" Susceptible wetlands; maintenance of characteristics is P: Limit concentration to <br /> desirable predevelopment <br /> concentrations(200 <br /> ppb) <br /> I E <br /> Page 24 <br />