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<br />DRAFT <br /> <br />year-round, and strategically placing plantings around buildings and dorms to reduce <br />noise and visual impacts. <br /> <br />D. ENVIRONMENTAL IMPACT <br /> <br />Landscaping can be multi-functional, serving uses such as stormwater management, <br />erosion control, and water quality improvement. Surface water management can be <br />incorporated into the landscaping plan in the form of rain gardens, environmental <br />issues like erosion can be mitigated with plantings that establish strong root systems, <br />and water quality is improved when vegetation filters sediment and helps slow the <br />rate in which it enters surrounding lake waters. <br /> <br />E. LANDSCAPE GUIDELINES <br /> <br />1. The College will continue to reduce the presence of invasive species, especially <br />Buckthorn on the campus. <br /> <br />2. The College will minimize loss of trees, especially old growth Oaks wherever <br />possible <br /> <br />3. The College will preserve existing berms wherever possible, and will extend <br />berms especially on the east side of the campus. <br /> <br />4. The College will plant a variety of coniferous trees along the eastern periphery of <br />the campus. These trees will be a minimum of five feet in height from the top of <br />the root zone. (The College will follow American Nurseryman's Association <br />guidelines in replanting trees.) <br /> <br />5. Native grasses and understory species will be planted on steep slopes to protect <br />steep slopes, prevent erosion, and improve water quality. <br /> <br />6. The College will employ innovative surface water management techniques <br />wherever possible to beautify the campus setting. <br /> <br />Northwestern College Master Plan <br />PUD Application Report <br /> <br />12 <br /> <br />13529.000 <br />