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may be affected; however, long-term strategies are possible to mitigate these effects. With the goal of providing screening to surrounding residents, the College will consider efforts such as extending existing buffers around the dorms, establishing new vegetation to replace invasive buckthorn, using plants that provide screening year-round, and strategically placing plantings around buildings and dorms to reduce noise and visual impacts. The College will develop a more detailed Landscape Plan as projects proceed, Both tree and shrub species will be chosen for year-round screening, The College has recently completed screening projects on the eastern side of the campus behind Riley Hall. These plantings consisted of four white and four red cedar trees, all between 8 and 10 feet tall. D, ENVIRONMENTAL IMPACT Landscaping can be multi-functional, serving uses such as stormwater management, erosion control, and water quality improvement. Surface water management can be incorporated into the landscaping plan in the form of rain gardens, environmental issues like erosion can be mitigated with plantings that establish strong root systems, and water quality is improved when vegetation filters sediment and helps slow the rate in which it enters surrounding lake waters. E. LANDSCAPE GUIDELINES 1. The College will continue to reduce the presence of invasive species. especially Buckthorn on the campus, 2. The College will minimize loss of trees, especially old growth Oaks wherever possible 3. The College will preserve existing berms wherever possible, and will extend berms especially on the east side of the campus. 4. The College will plant a variety of coniferous trees along the eastern periphery of the campus. These trees will be a minimum of five feet in height from the top of the root zone. (The College will follow American Nurseryman's Association guidelines in replanting trees.) Northwestern College Master Plan PUD Application Report 13 13529,000