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Existing + 0.5 ft Existing + 1.0 ft Existing + 14 days Conduct water budget analysis. Existing Existing Hydrologic Guidelines Existing + 21 days Existing 0 to 4.0 ft No Change No Change Existing Existing + 7 days Maintain existing hydrology. Maintain existing hydrology. 0 to 1.0 ft reduced impervious BMPs. reduced impervious BMPs. ent or redevelopment Encourage infiltration and Encourage infiltration and Existing Existing above existing runout above existing runout Inundation (1 & 2 yr): Inundation (1 & 2 yr): Inundation (1 & 2 yr): Inundation (1& 2 yr): 2 32: 2 ::: :::: Runout ControlRunout ControlRunout ControlRunout Control Bounce (10 yr)Bounce (10 yr)Bounce (10 yr)Bounce (10 yr) plus 2 days : (10 yr) plus 7 days : (10 yr) : : plus 1 day (10 yr)(10 yr) No Limit Minnesota Routine Assessment Method for Evaluating Wetland Functions, Version 3.0 e wetland perimeter. Buffers would be provided during developm replacement ratio of 1:1 for all changes in wetland replacement ratio of 1:1 for all changes in wetland replacement ratio of 1:1 for all changes in wetland affected by storm water or other wastewater flows affected by storm water or other wastewater flows affected by storm water or other wastewater flows Replacement of functions and values on site or in functions/values on site or in location specified in WCA minimum or greater replacement ratio with location specified in plan for drain/fill/excavation WCA allows mitigation flexibility with minimum must be avoided, minimized and replaced at a must be avoided, minimized and replaced at a must be avoided, minimized and replaced at a documented replacement of functions/values. standards required in the plan area, see M.R. WCA minimum or greater replacement ratio. In compliance with Ch. 7050 the entire area In compliance with Ch. 7050 the entire area In compliance with Ch. 7050 the entire area WCA minimum replacement of acreage and Consider requiring buffer replacement. Mitigation Standard plan for drain/fill/excavation impacts Recommended Wetland Management Standards 3 8420.0650. impacts. type. type. type. If currently landlocked, new outlet should be above delineated wetland elevation. Table 1.1 water quality 100 feet for buffer edge. buffer edge. buffer edge. monuments monuments monuments 50 feet for 35-50 feet 25-35 feet Require Require Require to mark to mark to mark 25 feet wildlife 2 1 habitat. Buffer Where possible, use 300-foot buffers as per MnRAM (Question #23). Buffers are unmowed, naturalized strips of vegetation around th Avoid conveyed flows where hydrologyÏdivert increased Stormwater Treatment Pretreat all conveyed flows Pretreat conveyed flows to flows. Avoid concentrating discharging to the wetland background loading rates. grained sediment prior to maximize removal of fine discharges to remove all Upstream sediment and to remove all medium Pretreat all conveyed prudent and feasible. nutrient pretreatment maintain background required to maintain heavy particles and grained and larger Maintain existing loading rates. sediments. flows. Management Strategy replacement plan flexibility. wildlife habitat. Apply WCA Improve wetland biological management of wetland to Maintain wetland footprint. enhance other functions if restoration/enhancement. existing functions, values Maintain wetland without appropriate to develop a Consider for restoration. Possible need for active conservation easement. protect unique features. Apply strict avoidance possible. Apply WCA Maintain wetland and functions, values and and plant community sequencing process. sequencing process. Management Classification diversity/integrity or and wildlife habitat. standards. May be degrading existing Allow for relaxed sequencing and Consider for B—Manage 1 C—Manage 2 D—Manage 3 Management A—Preserve Class 123