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, !�1 <br /> MPG 10/2010;Updated 3/2013 <br /> Historical Timeline: <br /> Wetlands, Floodplain & Surface Water Management Regulation in Orono <br /> --------------------------------------------------------------------------------------------------------------------- <br /> 1964 Ordinance No. 63 adopted for the following purposes: <br /> a) To protect the public health by regulating low-lying lands and drainage <br /> areas so as to control and restrict potential areas of stagnant water. <br /> b) To regulate building on low lying lands and drainage areas so as to control <br /> and restrict potentially dangerous or unwise construction. <br /> c) To promote natural drainage of low-lying lands, and prevent accumulation <br /> of stagnant waters. <br /> d) To conserve watershed areas necessary for the maintenance of surface and <br /> subsurface water levels. <br /> Ordinance 63 pertained to "All land which is frequently under water, or which regularly <br /> sustains emergent aquatic vegetation, or which constitutes a regular watercourse for <br /> drainage of higher land". Ordinance 63 excluded such lands from being counted toward <br /> minimum lot area requirements. Ordinance 63 prohibited issuance of building permits on <br /> such lands without Council approval. Ordinance 63 prohibited filling of such lands <br /> without Council approval. <br /> 1967 Minnehaha Creek Watershed District(MCWD) established. <br /> 1970 Ordinance No. I25 established much broader regulations regarding wetlands, and also <br /> dealt with flood plains. Ordinance 125 was adopted in part to comply with the <br /> requirements of the Federal Emergency Management Agency (FEMA) relative to the <br /> National Flood Insurance Program created by Congress in 1968, and the Minnesota State <br /> Floodplain Management Act of 1969. The City apparently took the opportunity in 1970 <br /> to strengthen its wetland regulations and incorporate them into a joint floodplain/ <br /> wetlands ordinance. <br /> The Ordinance established the Flood Plain and Wetlands Conservation Area, identified <br /> as "the low areas and flood plain adjoining and including any watercourse or <br /> drainageway or body of water subject to periodic flooding or overflow" as well as the <br /> areas shown as marsh, inundated areas or intermittent lakes and streams on the USGS <br /> quadrangle topographic maps. <br /> Ordinance 125 broadened the purpose statement to reflect more of the public values <br /> associated with wetlands, and prohibited filling, grading, excavating, etc. within <br /> wetlands. It required the granting of easements over wetlands when property is p�atted, <br /> and allowed a limited development credit for wetland area for sewered property only. <br /> The developer would be credited for wetland area toward density credit, but only up to an <br /> amount equal to his dry buildable area. <br /> 1971 Ordinance No. l33 slightly revised the allowance of development credit for wetland by <br /> limiting it to sewered residential property only. Harza Study determined that phosphorus <br /> is major limiting factor affecting Lake Minnetonka water quality and must be controlled. <br /> Page 1 <br />