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<br />-=...:=.-::" <br /> <br />- <br /> <br />o <br /> <br />..- <br /> <br />c.o <br /> <br />.... <br /> <br />SOlITHERN NEVADA W ATFR AlITHORITY - TREATMENT AND TRANSMISSION F ACIIlTY <br /> <br />c <br /> <br />F------ <br /> <br />......... ..:.... .....i...... ..<.<. .. <br />.. . . .iTl\b'!~f1<.< .... ..' <br />.. ........~.~~~~ry...l>f.M~i~t...$~~~~~t~9~~~~ry~p~~.~q~<~~.~!t~ti1l!t.jV~~.P?1l~J~~~~~:..i?.9~~~II..... ....... .....: <br /> <br />.. . .. .......... ............ ...:.......... ...>.. . ..;. .>i ...... ... .. ........ ... ....:......... <br />.. ....... ..' .... ............... ............ .........WliterTransntllllllon.pUl'\1PI!lg$tlit!llnS .. ...... ..... .... ..... ....... ...... ...... <br />I ......... ....... WTF .......PliW...< ......... ......... ....... ... <br />Alternatives LOllatlon Tunnel.. . Plp,..ihi1 .. .lntliki1<lloollter ..Sllb.ti1tlonll~l'l~ll.niOlr8 <br /> <br />.... <br /> <br />SI-18 Foothill 1,900 24,900 1 1 2 N/A' <br />SI-1C River 4,500 35,900 1 2 2 N/A' <br /> Mountains <br />SI-5 River 27,200 12,900 1 1 2 N/A' <br /> Mountains <br />HD-2 River 37,500 17.,.800 1 0 2 N/A' <br /> Mountains <br />HD-8 Railroad 34,000 20,100 1 0 2 N/A' <br /> Pass <br />In-Valley N/A N/A 361,000 N/A 6 N/A 7 <br />No Action N/A I N/A 230,000 N/A 4 2 4 <br /> <br />Source: SNWA-TTF Project Team, 1996 <br /> <br />. lengths are shown in linear feet <br />b nOI including the smaller substations which are incidental to all pumping stations <br />, except in small volumes incidental to pumping station operations <br />N/A: not applicable <br /> <br />Mountains WTF is located on a broad alluvial fan on the western slope of the River Mountains, <br />south of the Foothill WTF site. Power supply would be the same as described for Alternative <br />SI-1B. <br /> <br />Alternative SI.5: <br /> <br />Saddle Island Intake to River Mountains WTF Site <br />via New River Mountains Tunnel <br /> <br />Alternative SI-5 would consist of a new intake in Lake Mead at Saddle Island, an intake <br />pumping station on Saddle Island, a WTF located at the River Mountains site, water <br />transmission pipelines, a new River Mountains tunnel, a booster pumping station, two power <br />substations, and power transmission lines, The intake structure would be the same as for <br />Alternative SI-1 B. A booster pumping station in the eastern River Mountains would lift water <br />through a new River Mountains tunnel to the River Mountains WTF. This booster pumping <br />station would be near the same location as the booster pumping station for Alternative SI-1 C. <br />The new River Mountains tunnel would include a pressure section and a gravity section. A <br />vertical shaft and surface vent would be constructed at the junction of the two sections. <br />Power supply would be the same as described for Alternative SI-1 B. <br /> <br />S-8 <br /> <br />SUMMARY <br />