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Ì¿¾´» Êòí ᬻ²¬·¿´ ׳°¿½¬­ ±º ʱ´½¿²·½ Û®«°¬·±²­ ±² ¬¸» Û«¹»²»ñÍ°®·²¹º·»´¼ <br />¿®»¿ <br />Inventory Probable Impacts <br />Portion of Eugene/Springfield Metro <br />Entire City and surrounding region <br />Area affected <br />Buildings <br />gligible impact, other than minor cleanup required <br />Ne <br />Streets within Metro Area <br />Negligible impact, other than minor cleanup required <br />Roads to/from Metro Area <br />Negligible impact, other than minor cleanup required <br />Electric power <br />Power outages likely from short circuits caused by ash falls <br />Negligible impact, other than minor cleanup required for most <br />Other Utilities <br />utilities. Potential to impact water treatment plants which may <br />require additional maintenance to deal with high turbidity water <br />Some potential for health impacts, especially for frail people with <br />Casualties <br />respiratory problems. <br />Volcanic eruptions, especially of Three Sisters, have the potential <br />to cause major flooding along the McKenzie River. A worst case <br />McKenzie River Floodplain <br />scenario would be failure of debris dams impounding substantial <br />quantities of water. <br />Page V-10 October 2009 Eugene/Springfield Natural Hazards Mitigation Plan <br />