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<br />Marian Meadows Rezone and Subdivision Final Environmental Impact Statement 2-8 <br />Alternative 4 has the following additional features: <br /> Lots are clustered and reduced in number to provide an overall average density of one unit per 3 <br />acres with all ASZs resulting in 113 lots in the 341 acres affected to comply with Kittitas County <br />Code 17.58.050. The clustered lots are within ASZ 6, which has a lower hazard level than ASZs 3 <br />and 4, which are more closely aligned with the runway. Additional smaller lots are provided in the <br />upper portion of the site outside of the ASZs. <br /> Lots are clustered in the upper portion of the site to avoid the steepest slopes and most sensitive <br />natural features, such as wetlands and streams. This also provides a larger consolidated area of <br />preserved forest in the upper potions of the site for more effective forest management and control of <br />wildfire risk. <br /> The mini-storage proposal previously located northeast of and adjacent to the BPA transmission <br />line is relocated to within ASZ 4. This reduces impacts on wildlife movement through the site and <br />reflects the preference for low-intensity non-residential uses with few occupants within this ASZ. <br />Accommodating such a use may require that the tract be excluded from the PUD. <br />Alternative 5 avoids all development on the eastern portion of the site and results in a reduction of the <br />following potential impacts: <br /> Impacts from road and future residential construction on steep sloping hillsides would be avoided <br />and reduce topographic modification with associated erosion, landslide, and rockfall hazard. <br /> Potential risks of wildfire to persons and property would be reduced by avoiding the area with the <br />highest potential risk and with lower potential for successful evacuation and fire suppression. <br /> Additional public service costs from water service to higher elevations, road maintenance, snow <br />removal, and fire and emergency medical service response would be avoided. <br /> Larger contiguous areas would be retained for wildlife habitat and corridors without impacts from <br />nearby residential use. <br />The Alternative 5 layout is shown with 113 lots, which is the maximum allowed in the Kittitas County <br />code provisions that limit average density in ASZs to one dwelling unit per 3 acres. Complying with <br />the WSDOT Aviation recommendation of one unit per 5 acres in the ASZs would result in 68 lots. <br />The number of units in each scenario is summarized in Table 2-1, below.