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shall conform to a plan that meets to the following requirements to the extent possible, based on the recommendation of the City Engineer: A. The plan will include stormwater management systems for all new development that incorporate conservation development design and/or ecological stormwater management techniques. These techniques include the methods listed below and described further in the Northwest Quadrant Framework Plan: 1. Detention Ponds 2. Infiltration systems including trenches, basins, pervious paving systems, roof downspout systems. 3. Biofiltration systems including vegetated swales, vegetated filter strips, media filters, and catch basin filter inserts. 4. Multifunctional systems including enhanced swales and ponds and bioretention. 5. Rooftop collection and filtration systems. B. The plan will minimize total impervious area of a development by one or a combination of the following: 1. Locating parking areas beneath buildings, 2. Minimizing building footprints by adding stories, or 3. Using pervious paving materials rather than traditional asphalt and concrete for parking lots, roads, sidewalks, and driveways. C. The plan will limit the connectedness of impervious surfaces and direct runoff into vegetated landscape areas. This may include sloping driveways, sidewalks and streets to drain runoff to lawns or vegetated swales. D. The plan will include a variety of trees and native plant materials such as Cattails, Blue Flag Iris, Sedge Grass and Common Reed to capture rainfall through absorption or evaporation and provide roots for infiltration purposes. Screening of Parking Areas. Wherever a parking lot faces street frontage, such frontage shall be screened by a combination of hedges, ornamental railings, walls, bollards, trees, and other methods to screen parking lots from pedestrian spaces while maintaining eye - level visibility. Such screening shall be maintained at a height of between 2-1/2 feet and 3- 1/2 feet. Such screening shall be accommodated_ within the required parking setback area meet the setbaeles e uired by the a pheable Build to Lin . Overstory trees are allowed within this screening area, as long as the canopy of the tree is at least 7 (seven) feet above the ground to allow open visibility between the parking area and street frontage, under the tree canopy. If plantings are included in this screening area, the area must be a minimum of 6 feet in width to allow adequate room for plantings and snow storage. (4), Parking structures. A. Parking structures shall maintain setbacks required for buildings as described in this article. B. Openings in a parking lot structure that face a street or public open space, must be screened with slats, grating, screens, glass, or other architectural treatment to buffer substantially the visual impact of vehicles parked in the structure. (Ord. 748, 7-24- 2007) (Underline reflects new language, Strikethfough reflects deleted language)