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Table 1-5.5 Hydrologic Soil Groups for Soils in the Everett Area <br />Soil Twe <br />Alderwood <br />Bellingham <br />Cathcart <br />Custer <br />Everett <br />Indianola <br />IGuap <br />Lynnwood <br />McKenna <br />Mukilteo <br />Norma <br />Pastik <br />Puget <br />Puyallup <br />Snohomish <br />Sumus <br />Tokul <br />Wirston <br />Hydrolo¢ic Soil Group Classificatio�is <br />� <br />�drolo�ic Soil Groug <br />C <br />C <br />C <br />C <br />A <br />A <br />C <br />A <br />D <br />D <br />D <br />C <br />C <br />B <br />D <br />C <br />C <br />A <br />A. Low ru.�off potential. Soils having high infiltration rates, even when thoroughly <br />wetted, and consisting chiefly of deep, well-to-excessively drained sands or <br />gravels. These soils have a high rate of water transmission. <br />B. Moderately low runoff potential. Soils having moderate infiltration ratcs when <br />thoroughly wetted, and consisting chiefly of moderately fine to moderately <br />coarse textures. These soils have a moderate rate of water transmission. <br />C. Moderately high runoff po[ential. Soils having slow infiltration rates when <br />thoroughly wetted, and consisting chiefly of soils with a layer that impedes <br />docmward movement of water or soils with moderately fine to fine textures. <br />These soils have a slow rate of water transmission. <br />D. High runoff potential. Soils having very slow infiltration rates when thoroup,hly <br />wc:tted and consisting chiefly of clay soils K•ith a high swelling potential, soils <br />with a permanent high water table, soils with a hardpan or clay layer at or near <br />t�e surface, and shallew soils over nearly impervious materiaL These soils <br />liave a very slow rate of water transmission. <br />1-5-32 <br />