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MINNEHAHA CREEK QUALITY OF WATER • Proposed buffer disturbance WATERSHED DISTRICT QUALITY OF LIFE o Requires restoration plan, 5 year monitoring & maintenance plan and financial assurance minimum of $5,000 • Preserve wetland requires a 75' buffer o Averaging min 37.5', max 150' • Type 2 wetland in SE corner does not have FAW management class o Typically a wetland delineator or specialist will run a MnRAM to identify the management class. • Buffers are required around wetlands that are downgredient of the site disturbance. • Buffer averaging can occur on both parcels (2500 & 2520) o Existing struc[ures are grandfathered in MCWD encourages native wetland buffers even when not required by regulation and can provide technical assistance on seed mixes and maintenance. Other: • eoardwalk/Dock in wetland- In summary WCA does not does not consider boardwalks as fill in wetlands as long as the hydrology, vegetation, and soils are not effected in a manner that would cause them to loose wetland characteristics. MCWD Waterbody Crossings & Structures rule may be triggered if the boardwalk comes into contact with the bed or bank of the wetland. Additionally, Lake Minnetonka Conservation District (LMCD) regulates docks on Lake Minnetonka and should be consulted. There is no dock permit required from the DNR if the dock is built within the guidance criteria (DNR guidance attached separately). • Upon consulting with the District's engineer, there are some preliminary concerns regarding a high ground water table, site space for BMPs and space for required wetland buffers. Alternative and/or additional BMPs should be explored based on the soil conditions and location of the ground water table. Some other options may be underground storage, permeable pavers, additional filtration "gardens", and/or a treatment train(s). RECEIVED JAN ? =� %[� i ? # 3 9 0 3 �ITY OF ORONO