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<br />, <br />:,/.. <br /> <br />r- <br /> <br />, <br />- <br /> <br />~ <br />.... <br /> <br />SOUTHERN NEVADA WArm AUTHORITY - TREATMENT AND TRANSMISSION FACIUfY <br /> <br />(. <br /> <br />THE PROJECT'S LOCATION <br /> <br />The Proposed Project is located entirely within Clark County, Nevada. It has been divided into <br />two geographic regions as displayed on Figure S-1: Out-Valley, the undeveloped Federal lands <br />east of the Valley and extending to Lake Mead; and In-Valley, the urban and rural areas of the <br />Valley. <br /> <br />The Out-Valley area is bounded by Lake Mead on the east, Mead Substation on the south, the <br />western edge of the River Mountains on the west, and an arbitrary line drawn north of the, <br />Lake Mead National Recreation Area on the north. This area consists of Federal lands <br />managed by Reclamation, NPS, and BLM. Reclamation regulates the operations of Hoover <br />Dam and its reservoir, which is Lake Mead. Reclamation also manages lands set aside for <br />water resource development under the Boulder Canyon Project Act of 1928, the Southern <br />Nevada Water Project Act of 1965, as amended, and the Colorado River Basin Project Act of <br />1968. The NPS manages the Lake Mead National Recreation Area, which surrounds lake <br />Mead. The majority of BlM land within the project area is located between the Valley and the <br />lake Mead National Recreation Area. <br /> <br />The In-Valley area consists of the service areas of the Las Vegas Valley Water District, the <br />City of North Las Vegas, and the City of Henderson. The In-Valley area also contains <br />unincorporated areas maintained by Clark County and land administered by the BLM. <br /> <br />THE PROJECT'S COMPONENTS <br /> <br />The Proposed Project is intended to convey water from lake Mead, treat it, and distribute it <br />to purveyors in the Valley. The Out-Valley portion comprises extraction of water from Lake <br />Mead and treatment of the water for delivery to purveyors. The components of the Out-Valley <br />portion include: a raw water intake in lake Mead, a raw water transmission system consisting <br />of underground pipelines, tunnels, reservoirs, pumping stations, a water treatment facility <br />(WTFl, and new power facilities. The new WTF would treat the raw water to meet Safe <br />Drinking Water Act (SDWA) standards prior to delivery to consumers in the Valley. Water <br />treatment at the WTF would consist of ozonation, direct filtration, granulated activated carbon <br />(GACI adsorption, and sodium hypochlorite disinfection. New power facilities would be <br />required to support the SNWA-TTF system; electric power would be used for the system, <br />based on availability of power supply and facility construction costs. <br /> <br />The In-Valley portion is located mostly on non- <br />Federal lands and consists of transmission <br />facilities to convey water from the WTF to <br />purveyors in the Valley. Components of the In- <br />Valley system include underground pipelines, <br />aboveground pumping stations, enclosed storage <br />reservoirs, and ancillary facilities. <br /> <br />Water conservation is an integral <br />component of the Proposed <br />Project. SNWA member agencies <br />have agreed to specific water <br />conservation/efficiency measures <br />under a Memorandum of <br />Understanding. <br /> <br />In addition, water conservation is an integral <br />component of the Proposed Project. SNWA <br />member agencies have agreed to specific water <br />conservation/efficiency measures under a Memorandum of Understanding, These measures, <br /> <br />SUMMARY <br /> <br />S-3 <br />