Planning 2013-08-22 COMPLETE AGENDA PACKET

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landscape plan was changed to include Allee Elms (Ulmus parvifolia ‘Emer II’), which are better able to survive in strips as narrow as those proposed, have reduced potential for pavement lift, and provide a canopy for shade. The row of trees and shrubs proposed will act to enclose the space and provide a visual pattern to emphasize the vehicular circulation pattern within the site. d)In locations where plants will be susceptible to injury by pedestrian or motor traffic, mitigating steps should be taken; Ten parking spaces are proposed directly adjacent on the west side of the new north-south section of the curbed landscape area, and ten parking spaces are proposed directly adjacent on the south side of the east-west section of the curbed landscape area. The new landscape areas are narrow; there is no room to locate plantings a few feet away from parking areas to prevent damage from parked cars. As a condition of approval, staff recommends wheelstops be added to these 20 parking spaces to prevent damage to the plantings in the new landscaped areas. e)Where building sites limit planting, the placement of trees or shrubs in paved areas is encouraged; The Demolition Plan shows those portions of existing parking lot landscape islands that are proposed to be removed. The majority of the landscape island directly south of the entrance to the fueling facility will be demolished; a small area of the northwestern part of this island, where a light pole for parking lot lighting is located, will be retained. Directly to the south, half of another parking lot landscape island will be retained and combined with the new landscape area. To the west, an existing parking lot landscape island will be completely demolished along with an associated parking lot light pole and fixtures. A total of 1,529 square feet of landscape area is located within the project area. Changes to landscape islands will result in the removal of 76 square feet of landscaping, reducing the total landscape area within the project area to 1,453 square feet. The new landscape areas will include more trees than are currently located on the site. f)Screening of service yards, and other places that tend to be unsightly, should be accomplished by use of walls, fencing, planting or a combination; The new landscape areas proposed along the west and south sides of the fueling facility will provide screening between the fueling facility and the service area on the east side of the optical facility. Equipment located within an existing landscape island area that will be removed as part of the proposal is planned to be relocated. A vent stack is proposed to be moved to a landscape area at the south side of the fueling facility, just east of the controller enclosure. The arid permeator and associated bollards (see picture at right) will be relocated to the corner of the new landscape area. Trees and shrubs within existing and new landscape areas will provide screening of this equipment. g)In areas where general planting will not prosper, other materials such as fences, walls and pavings of wood, brick, stone or gravel may be used; The landscape plan has been reviewed with the goal of ensuring that plants within landscape areas will be able to remain healthy over time. The type of tree used within the new landscape area was changed from the original submittal per staff recommendations in order to provide room for the tree to grow and provide a canopy for shading while at the same preventing the tree root system from lifting the pavement. Irrigation is required in landscape planting areas. The applicant has stated that irrigation is planned to be provided. As a condition of approval, an irrigation plan shall be submitted with the building permit for the canopy extension. Additionally, the landscape plan submitted for the building permit shall include notes and specifications to help plantings within the new landscape area prosper: a. Add a note that all wire and twine and the top 2/3 of burlap are to be removed from B& B plants before planting. b.Add specifications for plant quality per ANSLA standards, including for B&B trees. c.The new planting strip needs to have good soil preparation to ensure that soils are decompacted and loosened to at least 18 inches and that resulting planting soils have at least 10% organic material in them (via the addition of compost like Cedar Grove or equivalent that is tilled in to the soil). Notes should be added to the plan about soil preparation. JR Page 6 of 11 08/14/2013 H:\Design Review\Costco Gas Station\SR_L13-038 Costco Fueiling Facility Expansion.docx 12