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1 <br />acres for contiguous parcels that abut the Mississippi River and 20 or more acres for all <br />2 <br />other parcels, including smaller individual sites within the following developments that <br />3 <br />are part of a common plan of development that may be constructed at different times: <br />4 <br />1. Subdivisions; <br />5 <br />2. Planned unit developments; and <br />6 <br />3. Master -planned development and redevelopment of land. <br />7 <br />b. <br />The following activities are exempt from the requirements of this section: <br />8 <br />1. Minor subdivisions consisting of three or fewer lots; <br />9 <br />2. Minor boundary line corrections; <br />10 <br />3. Resolutions of encroachments; <br />11 <br />4. Additions to existing lots of record; <br />12 <br />5. Placement of essential services; and <br />13 <br />6. Activities involving river -dependent commercial and industrial uses. <br />14 <br />15 <br />„'�+or <br />mi ic. I + ho c� �hr,-,i++o.� f^r ;Jl mr-nn^cini-1 dinwininiq �on+c <br />16 <br />(4) Design standards. <br />17 <br />a. <br />Primary conservation areas, where they exist, must be set aside and designated as <br />18 <br />protected open space in quantities meeting the following as a percentage of total parcel <br />19 <br />area: <br />20 <br />1. CA-ROS District: 50 percent; <br />21 <br />2. CA -RN District: 20 percent; <br />22 <br />3. CA -SR District: Ten percent if the parcel includes native plant communities or <br />23 <br />provides feasible connections to a regional park or trail system, otherwise no <br />24 <br />requirement. <br />25 <br />b. <br />If the primary conservation areas exceed the amounts specified in section 117- <br />26 <br />148(k)(4)a above, then protection of native plant communities and natural vegetation <br />27 <br />in riparian areas shall be prioritized. <br />28 <br />C. <br />If primary conservation areas exist but do not have natural vegetation (identified as <br />29 <br />restoration priorities in the MRCCA plan), then a vegetation assessment must be <br />30 <br />completed to evaluate the unvegetated primary conservation areas and determine <br />31 <br />whether vegetation restoration is needed. , <br />32 <br />33 <br />d. <br />If primary conservation areas do not exist on the parcel and portions of the parcel have <br />34 <br />been identified in the MRCCA plan as a restoration area, vegetation must be restored <br />35 <br />in the identified areas aee^rd;nig +^ c T �_1 nQr,)(63)h r„h,�or „ems ien roc+�en <br />36 <br />and the area must be set aside and designated as protected open space. <br />37 <br />e. <br />Storm water treatment areas or other green infrastructure may be used to meet the <br />38 <br />protected open space requirements if the vegetation provides biological and ecological <br />39 <br />functions. <br />40 <br />f. <br />Land dedicated under this section for public river access, parks, or other open space, or <br />41 <br />public facilities may be counted toward the protected open space requirement. <br />42 <br />g. <br />Protected open space areas must connect open space, natural areas, and recreational <br />43 <br />areas, where present on adjacent parcels, as much as possible, to form an <br />44 <br />interconnected network. <br />45 <br />(5) Permanent protection of designated open space. <br />46 <br />a. <br />Designated open space areas must be protected through one or more of the following <br />47 <br />methods: <br />48 <br />1. Public acquisition by a government entity for conservation purposes; <br />49 <br />2. A permanent conservation easement, as provided in Minn. Stats. ch. 84C; <br />Page 108 of 147 <br />