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City of Santa Ana Emergency Operations Plan <br />Part I Basic Plan <br />Another major hazardous materials transportation mode in Orange County and through the City is that of <br />underground pipelines. These pipelines predominately transport crude or refined petroleum, gasoline, and jet fuel. <br />The major threats posed by this transportation method include explosions, fire, and contamination of groundwater <br />used as a source of drinking water. <br />In Orange County, the majority of hazardous material incidents are handled prior to becoming a disaster. <br />Hazardous material incidents require specialized technical expertise that varies depending on the materials <br />involved and the type of incident. The resources and personnel required to react to a hazardous materials incident <br />may involve various local, special district, state, and federal agencies. First responders are usually Orange County <br />Fire Authority and Santa Ana Police Department, followed by Orange County Health Care Agency's <br />Environmental Health Division. Other local agencies may include Santa Ana Public Works (Street and Water <br />Divisions), HCA Epidemiology, and a long list of state and federal agencies, primarily including environmental <br />and transportation agencies. Private sector organizations, specifically those owning or transporting the materials, <br />would have a role also. <br />Significant release of a hazardous material has the potential to result in a mass -casualty incident requiring medical <br />treatment and/or decontamination for many exposed persons, as well as evacuations of surrounding communities. <br />Significant fires or explosions over a wide area may also result. The repair of damaged infrastructure and the <br />cleanup of all released material may take weeks to years and generate costs in the millions or tens of millions of <br />dollars. <br />ill <br />