2002-10-15_REVISION - M1983208 - Laserfiche WebLink

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SOILS DESCRIPTION EXHIBIT I (Rules 6 Rods §6.1.9) CONSTRUCTIOII MATlRIAL Fa! N° M 1983-208 RlBVLAR 112 OPlRATION NWY+SEC 11~ T48N, R10W " SHAVANO GRAVEL° January 2002 IArmended 10 July'OZ) ~a~ tiuils at the site are named atxl dexritxd h}' the tics Sails Survey map and narrative oFthc Natural Rewlunes Coaxrvation Ser+'iee (ARCS, ti,rnxrl} ti('S). Portions of the "DeltaMontrose Arai' surucy that arc applicahle a, the suhject site are reiterated Ix low. MESA SERIES Undisturbed Mesa soils normally have a flan surface layer of loam, but In this (Dorn-MOnnose/Area the wrface layer is made up of day loam brought up from the subsol. Typical Mesa soils are noncalcareous in the srlace layer and in the upper part of the subsol, but locally they are weakly calcareous throughout because they have been imgated with calcareous water. The grave) content o! the wbsoil ranges from 0 to as much as 20 percent. In the substratum it ranges from 30 to 70 percent. In many places mesa soils are adjacent to Mack soils. which lade ilia very gravelly and cobbly lower subsoil and substratum typical d Mesa soils. Mesa soils resemble Hinman sills but have a coarser textured subsoil. They dosety resemble Orchard soils, but their parent material, unlike that of Orchard soils, contain little or no material derived from basalt or from ferromagnesian minerals. In their natural slate Mesa soils support a good cover of galleta, Indian ncegrass, needleand-thread, blue grams, and [prickly pear] cactus. tf irrigated highly productive and are wiled to most crops commonly grown in the (Dares-mtonrrose) Area, MESA CLAY LOAM (0% to 2 °~ slopes) Map Symbol "MIA" This loll is on top of high mesas. It has a profile Need to preside under~drainage before imgation aimiar to the one descrived as typical of the Mesa starts. The water-holding capacity is fair, at least to a series. The total acreage in this )noro-armwsol Area depth of 40 to 60 inches, because enough clay loam is large, and most of it is in the western half. If is mixed with the gravel. These soils are not highy imgated. this Solt can be used wccessfully for tilled wsceptihle to erosion. (Capability Unit ~'lo-a crops. Because the wbsoil is gravelly. there is no nonimgated: tlol irtigated) MESA CLAY LOAM (2 to 5% slopes 1 Map Symbol "MIB" This soil is on top of high mesas. It has a profile no need to provide underdrainage before imgation similar to the one described as typical of the Mesa starts. The water-holding capacity is fair, at Least to a series, The total acreage in this (~,+re--Ma~nnso) Area depth of 40 to 60 inches. because enough clay loam is large, and most of it is in the westem half. is mixed with the gravel These soils are not highy If irrigated this soil pn be used wccessfully for wsceptible to erosion. (Capability Unit Vle-1 non- tilled crops. Because the wbsiol is gravelly, there is imgaled; Ile-1 irtigated) MESA GRAVELLY CLAY LOAM (2% to 5°k slopes) Map Symbol "MoB" This soil is party on dd high tercaces and This soil wpports a good cover of galleta, needle- allurial fans and partly along small drainagesways and•thread, blue grams, and cactus. H ifdgated, it that have cut into the terraces. The profile is similar can be used successfully for tilled crops, but stones to the one deschbed as typical of the Mesa Barnes, and gravel make tillage difficult and are hard on farm but the wrface layer is i5 to 30 percent gravel and machinery. Some of the larger stones should be cobblestones. Most of the acreage is west of the removed. This sill is not highly wsceptible to Uncompahgre River. erosion. (Cap.Unit ~'iNI nonimgated; tllrt irrig3tedl E r MonltoseCp ~ Shavarw0rav I AmoodAppl l E:hl rallroi