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3 July 2012 <br /> 1340 Baldur Park Road <br /> Page 8 of 8 <br /> and the appropriate watershed district. Treatment may include site retention, skimmers, <br /> weirs or sedimentation ponds of appropriate scale. Structures and ponds serving this <br /> purpose must be properly maintained and serviced by the property owner. <br /> g. Discharge into the wetlands must occur at a rate no greater than allowed by the city <br /> engineer in accordance with the city's surface water management plan and the <br /> appropriate MCWD requirements. <br /> (2) Setbacks. <br /> a. All buildings (principal and accessory), must be setback at least 20 feet from the upslope <br /> edge of the wetland buffer. Exceptions: Play structures (including sport court type <br /> structures), grade-level decks, patio slabs, driveways, sidewalks and parking lots. <br /> b. A setback from the buffer area is not required for overhead utility poles and lines that are <br /> less than two feet in diameter, underground utility lines and distribution equipment, light <br /> poles, traffic signals, traffic regulatory signs, mailboxes, entrance monuments meeting <br /> section 78-1405(8) and other equipment that provides an essential public service. <br /> c. A setback from the buffer area is not required for fences or retaining walls. <br /> (3) Nonconformities. <br /> a. Effect of wetland boundary expansion. An existing structure, driveway or parking area <br /> meeting the required setback from a city-designated wetland boundary or buffer area is <br /> considered a legal nonconforming development if a later wetland delineation or <br /> implementation of a wetland buffer shows that the wetland or its buffer is closer than the <br /> required setback. <br /> b. Existing nonconformities. An existing structure, driveway or parking area that does not <br /> meet the required setback from a city-designated wetland boundary or buffer area, is <br /> considered a legal nonconforming development. <br /> c. Avoiding future nonconformities. In order to avoid the creation of future nonconformities, <br /> in situations where development, redevelopment or construction activity does not trigger <br /> the establishment of a buffer, the following setbacks shall apply: <br /> 1. All new buildings shall maintain a setback from a delineated wetland boundary <br /> equivalent to the width of the buffer area per the chart in section 78-1605(c) plus <br /> the required 20 foot buffer setback. <br /> 2. All new non-structural impervious surfaces and those structures listed as <br /> exceptions in section 78-1608(2)(a) above shall maintain a setback from the <br /> delineated wetland boundary equivalent to the width of the buffer area per the <br /> chart in [section] 78-1605(c). <br /> d. Buffer flexibility. Where existing structures or surfaces are located within an area that <br /> would be required for establishment of a buffer under this article, alternative methods of <br /> wetland protection may be approved by the city council to avoid creating unreasonable <br /> impacts on the existing use of a property. Such methods may include but are not limited <br /> to buffer width averaging, redirection of drainage to an area where buffer is feasible, use <br /> of rain gardens, cisterns or rain barrels, etc. <br /> (Ord. No. 28 3rd series, § 1, 8-22-2005) <br />