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Orono, MN,Code of Ordinances Page 2 of 3 <br /> Protection Susceptibility Description Additional Protection <br /> Classification Rating Requirements <br /> (B = Bounce = Change in <br /> water level due to runoff <br /> event) <br /> (P = Phosphorus) <br /> "Preserve" Highly Highly susceptible to both B: Maintain bounce at or <br /> Susceptible quantity and quality below existing conditions <br /> impacts from runoff; have P: Limit loadings to <br /> the highest degree of predevelopment loading <br /> protection (0.14 Lbs/Ac/Yr) <br /> "Manage 1" Moderately Moderately susceptible to B: Maintain bounce at or <br /> Susceptible quantity and quality below existing conditions <br /> impacts; protection is less plus 0.5 foot <br /> stringent than Preserve, P: Limit loadings to <br /> provides protection to predevelopment loadings <br /> maintain their times 2 (0.28 Lbs/Ac/Yr) <br /> characteristics <br /> "Manage 2" Slightly Less stringent protection B: Maintain bounce at or <br /> Susceptible than Manage 1 wetlands; below existing conditions <br /> maintenance of plus 1.0 foot <br /> characteristics is desirable P: Limit concentration to <br /> predevelopment <br /> concentrations (200 ppb) <br /> "Manage 3" Least Wetlands are significantly B: No quantity <br /> Susceptible degraded (e.g., cultivated requirement <br /> or canary grass monotype) P: Limit concentration to <br /> or lack of wetland 225 ppb <br /> characteristics; not <br /> typically impacted by <br /> runoff; no quantity and <br /> only limited quality <br /> treatment of runoff is <br /> required <br /> about:blank 6/24/2015 <br />