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V 07.1Cl C <br />Supplemental Soil Survey Report. GarveylBurbrldge Properties for New Horizon Mire, <br />Nucla, Colorado. James R. latrine, 1996. <br />This report supplements the 1988 report prepared by Jim Nyenhuis for Peabody Gael. It provider, a more <br />detailed survey of the Garvey,'Burbridge property (henceforth referred to as the survey). Priorities were to <br />examine and sample a parcel of lead in "he northwest corner of the surrey delineated as map unit 700. Secondly, <br />additional sample sites, throughout the surrey area, were examined for salvage material depths. All sample sites <br />were excavated with a backhoe, giving the examiner a clear view of the soil profiles to a depth of bre-lrock. <br />Results indicate that the soil in reap :snit 70B is not Barx as previously reposed. Eigl~ #sample sites in this <br />map unit indicate gnat the soil is Progresso which is not suitable for prime farmland consideration nor is in the list of <br />prime farmland soils for Colorado. Rerno�ial from prime farmland consideration are based on Chapter 622.03 <br />Prime Farmland So ils and Exhibit 622 -1 Final Pule, Prime and Unique Farmlands, National Soil Survey Handbook, <br />1993 Edition (appendix 1). In addition, Colorado has four additional criteria soy prime farmland consideration <br />defined in Colorado Important Farmland Inventory ( appendix 2). The primary factor excluding this soil from prime <br />farmland consideration are pH greater than 7.4 (Table 4 column t) in all sampled surface and subsoil horizons <br />with a depth to bedrock between 24 and 40 inches (Coloram Important Farmland Inventory Rage ?, Nurnt�er4.). <br />This map unit was changed from 70B to 3001 -A a rnonotaxa of Progresso soil with an inclusion of Band sail <br />(Table 1). <br />Additional sample sites for salvage material depths resulted in a more detailed survey trap. Map units <br />were refined based on original map unit numbers for composition, percentages, and inclusions to more accurately <br />reflect this survey, The results are in table 1. <br />The additional sample sites also yielded more accurate lift depths for topsoil and subsoil. The resk,!ts a -e <br />summarized in Table 2. <br />area. Taba'e 3 is a representative pedon for Progresso soil, sample site - 2, within the questioned nrirne farmland <br />Table 4 is a summarization of lab results for sample sites 1 -0, and 8. <br />Appendix 1 is Chapter 622.03 Prime Farmland Soils and Exhibit 622 -1 Final Rule, Prime and Unique <br />Farmlands, National Soil Survey Handbook, 1993 Edition, <br />Appendix 2 is Colorado Important Farmland Inventory. <br />Appendix 3 is Soil Map of the GarveyiBurbridge Properties <br />