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upstream to the north boundary of Section 26, T10S, R98W. <br />Unconsolidated stream-laid deposits of the Colorado River are mapped in <br />Exhibit 13, Tab Section 6 (Refer to Appendix 21-2 for the Assessment of Unit <br />Train Load-out Area and Appendices 21-3 and 21-4 for the Cottonwood and <br />Rapid Creeks area). Shallow groundwater from the river flows through the <br />alluvium into the underlying rock formations. The general direction of <br />groundwater flow is outward from the river through the alluvium and into the <br />adjacent strata and then northeast and down-dip within the monoclinical strata. <br />The extent of unconsolidated stream-laid deposits are shown in Exhibit 33, <br />Plate I of Appendix 21-3, and Maps 1 & 2 of Appendix 21-4. <br />The high relief in DeBeque Canyon is shown on all topographic maps included <br />in this application. The areal extent of the valley bottom deposits is relatively <br />small until the canyon widens to the south at Palisade. Irrigation water from <br />• Palisade to Mack is transported through the Highline Canal across the permit <br />area. There are_no facil't'es o oof~,iy~ga~ti9p~.,ofathewalley~floor~„~u~tf~igthe <br />~p~ne+.. <br />,pe,~njtia~.ea~ Mapping of diversion structures, ditches, and the topography of <br />area is shown in Exhibit 17, Tab Section 7. The most common regional flood <br />irrigation procedures used in the DeBeque Canyon area is Furrow irrigation. <br />This system maximizes the use of gravity flow systems, without the aid of <br />pumps or other mechanical means. Furrow irrigation consists of placing <br />furrows on slopes up to six percent. The furrows are relatively large, with the <br />capability of carrying large quantities of water (U.S. Department of Agriculture, <br />1960). <br />F~~Fy~~„3~shoY7st~tFie~lan"d"'a'Foci`nd~fh'`e~U~niTl~Trra'ifi'~Loadotitr~Fii"storical6y~flood ~~ <br />ir,~(,ga~ e ~ ~p.dNG6~.e~h'eadgate assosiatedRwitF~Nit. Currently the headgate is used <br />to divert water from the Canal to the Unit Train Loadout for fire fighting and dust <br />suppression purposes. <br />~~ 21-2 (New 3/1/96) <br />