Laserfiche WebLink
4.7 Geology,Soils,and Seismicity <br /> TABLE 4.7-1 <br /> SOILS WITHIN PROPOSED RMC PACIFIC VERNALIS QUARRY PROJECT SITE <br /> Is this soil <br /> Is this soil considered <br /> considered Farmland of <br /> Soil Series and Prime Statewide <br /> NRCS Map Unit Number Description Farmland? Importance? <br /> Capay Clay Moderately well drained,high available water Yes No <br /> (0-2 percent slopes) rapacity,high shrink-swell potential,slow <br /> Map Unit 118 runoff,slight hazard of water erosion. <br /> Zacharias Gay loam Well drained,moderately slow permeability, Yes No <br /> (0-2 percent slopes) high available water capacity,slow runoff, <br /> Map Unit 281 slight hazard of water erosion. <br /> Zacharias gravelly clay loam Well drained,moderately slow permeability, Yes No <br /> (0-2 percent slopes) moderate available water capacity,slow runoff, <br /> r Map Unit 262 moderate hazard of water erosion. <br /> Vernalis clay loam Well drained,moderate permeability,high Yes No <br /> (0-2 percent slopes) available water capacity,slow runoff,slight <br /> Map Unit 266 hazard of water erosion. <br /> Cortina gravelly sandy loam Somewhat excessively drained,moderately No Yes <br /> (0-5 percent slopes) rapid permeability,low available water capacity, <br /> Map Unit 137 slow runoff,slight hazard of water erosion. <br /> Vernalis-Zachadas complex Contains a mixture of both Vernalis and No No <br /> (0-2 percent slopes) Zacharias soils. <br /> Map Unit 120 <br /> L SOURCE: USDA Soil Surrey: Stanislaus County,Western Part,California,1997. <br /> 6. Prime Farmland Soils,as defined by the NRCS,are those that have the best combination of <br /> physical and chemical characteristics for crop production.Prime Farmland Soils possess soil <br /> tr <br /> quality, growing season, and moisture supply needed to produce sustained high yields of crops <br /> when treated and managed. <br /> ` Soils of Statewide Importance are soils other than Prime Farmland which have a good quality <br /> combination of physical and chemical characteristics for crop production.Table 4.7-1 indicates <br /> which soils in the project area are Prime Farmland soils or Farmland of Statewide Importance <br /> ` soils(USDA NRCS, 1995). Refer to the Agricultural Resources chapter of this EIR, Section 4.3, <br /> for a detailed discussion of Prime Farmland Soils and Farmland Soils of Statewide Importance as <br /> related to their distribution and occurrence on the project site. <br /> Mineral Resources <br /> r The California Geological Survey (CGS)classifies the regional significance of mineral resources <br /> in accordance with the California Surface Mining and Reclamation Act of 1975 (SMARA). <br /> Mineral Resource Zones(MRZ)have been designated to indicate the significance of mineral <br /> deposits. The MRZ categories are as follows: <br /> RMC Pacific Vernalis Ouany Mining and Reclamation Project 4.7-3 ESA/203015 <br /> Draft Environmental Impact Report May 2006 <br />