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<br />,~, <br /> <br />" ,::'\... ," <br />1.;j"';; <br /> <br />(Inventory of physictU factors) <br /> <br />Drainage <br /> <br />Surface drainage is excellent throughout the 'irrigahle area. <br />sion is ~oderate. There are only two areas which arc excessively <br />and have poor drainage. <br /> <br />Ero- <br />flat <br /> <br />Subsurface drainage is gener~lly good. No impervious strata are <br />encountered in the 5-foot profile. Open profiles 6 to 12 feet doep <br />along the canals on the lower side of the area show no impervieus strata. <br />Pro sent co.n<lls would serve as drcdllll am may be deep enough to protect <br />the land from the effects of irrigation above thom. Seepage should not <br />develop in tho irrigable area after irrigation has boen introduced. <br /> <br />.--- -- <br /> <br />Sa.linityand~ '~lkc.lini ty <br /> <br />c <br /> <br />-- <br /> <br />.---- <br />-- ~ ~ <br /> <br />. <br />. <br /> <br />A typjcal' il.oil - sample ti:lken in the salim po.rt ef the area <br />1.Ol peroent total soluble salt and 0. pH of 8.6. A soil srumple <br />'the northeastern part of the irrigc.ble area tested .15 percent <br />soluble salt for the topsoil and .23 percent for the subsoil. <br />for the respeotive horizons was 8.4 <lnd 8.2. The limo content <br />soil is gem rally high. <br /> <br />, te Ifted ' <br />fran <br />total <br />The pH <br />of the <br /> <br />:;1 <br /> <br />" <br /> <br />Seuth Sido, C~nls E~st of Huerfnno River to the East &ide of <br />La Junto. subarea <br /> <br />This subo.rea, shcwm on exhibits' 3 and 4, pagos 28 and 29, includes <br />0.11 lc,nd under the following cnnc.lsc Rocky Ford Highlino, Oxford Fnrm- <br />era, Otero, Catlin, and Rocky Ferd. About two-thirds ef the area is , 'I <br />irrigated. The area oxtends about 50 miles along the seuth of tho Ar- <br />k<lnsas River from. tho Huerfano River te 1 mile Oc.st of Lei. Juntc.. Tho <br />Arknnsas River forms tho north boundc.ry, and the Rocky Ford Highline <br />and Otoro Canals ferm the seuthern boundary. The crea is c. solid belt <br />2 to 12 miles in width depending upon the topogrc.phic and seil condi_ <br />tions of its southern beurrlary. <br /> <br />. <br /> <br />--.----- <br /> <br />17 <br />