1986-11-01_PERMIT FILE - C1981008A (3)

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Table 2. Topsoil Quality and Quantity for the Proposed Nucla Mine Expansion Area, Montrose County, Colorado, 1979. (See Exhibit 9-2 for additional information.) Best Ouality bower Quality Map 1 Percent Rating Stripping Volume Rating Stripping Volumes Stripping Symbol Descriptive Title of L4aj2 Units Acres Area Symbol Depth in. ac. ft. Symbol Depth in. ac. ft. symbol Map 2 5810/3B1 Shavano sandy clay loam, 2-58 slopes 10.85 9.35 G 1/ 18 16.3 F 24 21.70 18G/24Fcd 2/ 5810/7C2 Shavxio sandy clay loam, 5-10% slopes 66.10 56.98 G 12 66.1 F 20 110.17 12G/20red 5810I/3B2 Shavano sandy clay loam, 2-5% slopes, 2.79 2.40 G 18 4.2 F 24 5.58 18G/24Fcd intermittently flooded 5810i/7cl Shavano sandy clay loam, 5-10!t slopes, 1.75 1.51 G 12 1.8 F 20 2.92 12G/20Fcd intermittently flooded 5810E/D2 Shavano clay loan, 10-20% slopes, 4.09 3.53 F 8 2.7 P 18 6.14 8Fct/18Ps std eroded phase 9904iD1,2 Persayo sandy clay loam, 10-20% slopes 10.55 9.09 F 4 3.5 P 12 10.55 4Fct/12Ps std eroded phase Other Disturbed areas (16.27), roads (3.0) 19.87 17.13 U O O U O U U areas ponds (0.6) TOTAL Summation of Area Findings 116.00 100.00 - (9.84) 94.6 - (16.20) 157.06 3/ 1 The above ratin s have dropped calcium carbonate as a restrictin g factor (<5.0%) but have considered texture, consistence, sandstone or shale (actually a deph factor as well as factor of coarse fragments) and slope. The ratings are based on WDFQ Guideline 3, USDA-SCS NSH 400.3(d) "Topsoil Table' and Bureau of Reclamation Manual "SOILS". - 7312 Illustration 8, pg.9, revised 1/4/74. G=good; F--Fair; P--Poor; U--Unusable. 2/ Quality limitations in symbols are: c = consistence; d = depth to sandstone and shale; s = slope; st = presence of sandstone and shale fragments 3/ These depths are calculated as mixtures of A, B and C horizons to the depths shown. Tables 3 and 4 give specific analyses and giality by soil horizons. r J