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JD -6 Mine Environmental Protection Plan 55 <br />Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly <br />of soils having a layer that impedes the downward movement of water or soils of <br />moderately fine texture or fine texture. These soils have a slow rate of water transmission. <br />Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly <br />wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a <br />high water table, soils that have a claypan or clay layer at or near the surface, and soils <br />that are shallow over nearly impervious material. These soils have a very slow rate of <br />water transmission. <br />4148A.120927 Whetstone Associates • <br />