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P.IVERWA5fi, 0 to 2 percent slopes, Class VIIIs Land (Ro) <br />This land type consists of £ine sand, gravel, cobblestones, and irater- <br />worn stones. It occurs alcng the GumLison and Colorado Rivers and is <br />subiect to cecasional partial overflow because it lies only 4 to 8 <br />feet above the normal water level of the streams. P.s a rule, t?~e <br />deposits at the higher levels have some-.~hat hwT~^~ocky relief and <br />consist mainly of sand, loa,y fine sand, and fine sand rorith a few <br />strips or patches of gravel in places. At lower levels the gravelly <br />and r_cbbly materials are normally m.re evident. The sandy layers <br />vary in thic'L~iess, and the gravelly and cobbly layers vary both in <br />thief-~ ess and in the depth at which they occur. ' <br />1~e pale-brown deposit of sandy material lying on the gravel, cobbles, <br />and stones is porous and absorbs wester so rapidly that irrigation <br />would not be practical, even if sn311 areas could be found that were <br />s~ooth enough to be irrigated. Fi:cept for a £ew small patches <br />used as gardens, little of this land is cultivated. <br />Ft present, this land is used mainly as a so•.u~ce of material used. for <br />read building and in concrete .~}~ ag. The cobblestones consist mainly <br />of basalt and granite but some are from hard sandstone and lava. <br />Soil limitations are classified as severe £or local roads and streets, <br />shallow excavations (high :.ester table and flood hazard), dwellings <br />with basements (high water table and flood hazard), dwellings without <br />basements (high i.~ater table and flood hazard), sanitary land fill <br />(annual flooding), septic tank absorption fields (high water table, <br />flood hazard), and sewage lagoons (high water table, flood hazard). <br />I~ <br />~I <br />e <br /> <br />