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Scientist Mr. Jim Nyenhuis resulted in the following agreement concerning selected <br /> scope-of-work items: <br /> o An Order 1-2 level soil survey should be done for this project. <br /> o Soil samples should be taken from individual soil profiles rather than being <br /> c composited over several sample locations. <br /> \ o Soil samples should be taken from all soil profile subhorizons. <br /> t o All soil samples with pH values less than 6.5 should be analyzed for acid-base <br /> vi potential . <br /> \§ o Laboratory analysis for soil fertility parameters (nitrogen, ammonium plus <br /> nitrate, phosphorus, and potassium) should not be done during the soil baseline <br /> study. The prime farmland soils are to be sampled for soil fertility within one <br /> year prior to disturbance. Fertility analyses are also to be completed within <br /> reclamation areas once the topsoil has been redistributed. <br /> o Selenium should be analyzed if indicator plants are present, and a threshold <br /> level of 2 ppm or less should be used for soil suitability evaluation. <br /> All soil taxonomic units appearing in the soil survey legend were described and <br /> characterized. The number of samples per taxonomic unit adequately characterized each map <br /> unit, and followed or exceeded sample intensities recommended by PCC and CMLRD. <br /> Samples were collected in the field and analyzed in the laboratory in accordance with <br /> CMLRD-approved procedures for topsoil analyses as outlined in Table 9-5-1 . The <br /> information presented in Table 9-5-1 is a synthesis of material from the approved <br /> scope-of-work and InterMountain Laboratories ( IML's) standard procedures for topsoil <br /> analysis. Sample site locations were selected to most accurately represent the sampled <br /> soil series and to provide for adequate sample site distribution across the projected <br /> disturbance areas. Transition zones between map units, road edges, fence rows, or <br /> previously disturbed areas were avoided. Representative profiles were selected on the <br /> basis of medial characteristics for physical and chemical soil characteristics, parent <br /> material , landscape position, and vegetation. The major soil horizons (A, E, B, and C) <br /> were separately described, sampled, and analyzed. Portions of paralithic material (Cr), <br /> if present, were also described, sampled, and analyzed for characterization purposes and <br /> possible subsequent use as a topsoil substitute if needed. <br /> Surface and subsoil horizons (A and B horizons) were sampled to represent no greater than <br /> 9-5-12 Revised 04/11/88 <br />