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City of Santa Ana <br />Environmental Checklist <br />hours for the flood waters to peak at an elevation of 96 NAVD, which is approximately 4 feet over <br />the existing Santa Ana River bank height in the project vicinity (CCCD 2011). <br />Implementation of the proposed project will include operation of an emergency plan and <br />preparation of an emergency preparedness handbook in conjunction with Santa Ana police and fire <br />departments. The emergency operations plan will be drafted specifically to meet the needs of the <br />school site. This handbook will include emergency response plans for fire, flood, earthquake, <br />terrorist threats, and hostage situations. Because the project site is located approximately 21 miles <br />froth Prado Dam and flood waters would take approximately 6 hours to the project area, the <br />project's planned emergency response operations would protect students and employees onsite in <br />the unlikely event of a Prado Dam failure. As a result, the proposed project would not expose people <br />or structures to a significant risk of loss, injury, or death involving flooding as a result of the failure <br />of a levee or darn. <br />j. Contribute to inundation by seiche, tsunami, or mudjoow? <br />No Impact. The proposed project site is located over 12 miles away from the Pacific Ocean, and is <br />generally considered too far away to be subject to a tsunami. Additionally, the County of Orange <br />Emergency Operations Plan map of inundation zones along the coastline shows that the project site <br />is not located within an area anticipated to be at risk of a tsunami (County of Orange 2005). <br />Therefore, the project would not result in impacts related to potential tsunami inundation. <br />The closest enclosed bodies of water that could result in an earthquake- induced seiche to the site is <br />the Prado Dam located 21 miles upstream from the project site. The Santa Ana River Main Stem <br />Project has implemented flood control improvements to both the Prado Dam and Lower Santa Ana <br />River, which has reduced the risk of inundation in the event of a seiche in the Prado Dam (Orange <br />County Flood 2012). Therefore, there would be no impact to the project site as a result of overflow <br />caused by a seiche. <br />The project site is located within a fully developed area, and on a site with limited topographical <br />relief. The project site is not located downhill from any slope of sufficient size to cause mudflows. <br />Therefore, the project would not result in impacts associated with mudflows. <br />The Academy Charter High School June 2012 <br />Initial Study /Mitigated Negative Declaration 3 -60 ICF 00914.11 <br />l : 111 <br />