02-23-2004 Council Packet - Laserfiche WebLink

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i Information needed to form a wetland strategy for each wetland will be derived from one or aii of these sources: 1. Wetland inventory and assessment completed as part of this SWMP 2. Wetland inventory and assessment completed by MCWD 3. Non-inventoried wetland procedures detailed in Section 5.3.4 5.4.1 Protection Classification Orono's wetland protection dossificotions are based on a wetland's susceptibility to impact from runoff (see Section 5.3.2). Because the runoff susceptibility rating can be used as an indicator for the overall quality of most wetland types, it can also serve as the basis for determining the level of protection to be afforded to a given wetland. In some cases, wetlands with a “utilize" classification can actually be enhanced when used for runoff management, by rasing water levels or by excavating. In other situations, restoration of Protect II or Protect III wetlands may provide treatment for downstream waterbodies and improve the habitat and aesthetics of the subject wetland. Table 5.2 Wetland Protection Classifications 5.4.2 Protection Strategies Ewsting federal and state regulations address potential impact to the “areal" extent of wetlands from placement of fill material. In concert with MCWD. the City also Intends to protect the overdi ecdogicd integrity of its wetland communities. The protection strategies in Table 5.3 were developed to address potentid impact to the type, character, and qudity of a wetland community, from runoff. The Protection Strategy for each wetland is based on its Protection Oassification. OfyofOrono &jrfK»W^f^n9genm^Plan S-€ I \ Protection Classification Susceptibility Rating Description Protect I Highly Susceptible Highly susceptible to both quantity and quality impacts from runoff; have the highest degree of protection. Protect II Moderately Susceptible j Moderately susceptible to quantity and quality impacts; protection is less sthngent than Protect I, provides | protection to maintain their characteristics \ Protect III 1 Slightly Susceptible Less stringent protection than Protect n wetlands; j maintenance of characteristics is desirable Utilize Least Susceptible Wetlands are significantly degraded (e.g., cultivated or canary grass monotype) or lade wetland characteristics; not typically impacM by runoff; no quantity and only limited quality treatment of runoff is required