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GPS receivers similar to the one in the <br /> adjacent graphic are available at relatively <br /> low cost . These types of receivers can be <br /> used in conjunction with a variety of laptop <br /> or hand- held computers . 07 - s <br /> 0 <br /> It is recommended that the Department have preliminary GIS access via mobile computers <br /> for Year 1 . Comprehensive GIS access ( all users ) via mobile computers is recommended for <br /> Year 2 . More information on the mobile data browser can be found in the applications <br /> section later in this Department needs assessment . <br /> Case Study Elsinor Valley Municipal Water District Uses ArcPad to Update Data <br /> The Elsinore Valley Municipal Water District ( EVMWD) in Southern California will update data <br /> on approximately 4 ,000 fire hydrants using ArcPad , a handheld computer, and a GPS unit . By <br /> using custom forms created for ArcPad , data collectors will not only verify the location of the <br /> district's hydrants but will also gather information on the make , condition , and capacity of <br /> each hydrant . <br /> EVMWD has provided water service for the <br /> past 48 years . Located in the southwestern s� <br /> portion of Riverside County, the district <br /> covers a 96-square-mile area from the <br /> Temescal Valley to Murrieta and serves the <br /> cities of Lake Elsinore , Canyon Lake , and <br /> Murrieta and the unincorporated r <br /> communities of Wildomar, The Farm , <br /> Cleveland Ridge , and Lakeland Village . <br /> EVMWD has approximately 28 ,000 water, 4 <br /> c <br /> wastewater, and agricultural services . <br /> EVMWD is updating data on approximately <br /> 4, 000 fire hydrants using ArcPad. <br /> EVMWD 's 125 employees maintain a water distribution system that consists of 420 miles of <br /> transmission and distribution pipelines. This system includes roughly 4, 000 fire hydrants . <br /> w EVMWD uses an Arclnfo-based enterprise GIS to manage this system . In 1999 , the district's GIS <br /> staff began inputting fire hydrant flow tests into the GIS database and linking the results to <br /> features . During this process, staff discovered that many hydrants were not in the GIS <br /> database . These hydrants exist in an older part of the distribution system that has poorly kept <br /> records . <br /> 81 <br /> GIS Needs Assessment and Implementation Plan Chapter 1 - Departmental GIS Needs Assessment <br />