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RM 3 of 3 <br />If this unit is used for homesite development, the main limitations are <br />slow permeability, high shrink -swell, and low strength. If the soil is <br />used for septic tank absorption fields, the limitation of slow <br />permeability can be ov.ercomr by increasing the size of the absorption <br />field. If the density of housing is moderate to high, community sewage <br />systems are needed to prevent contamination of water supplies as a <br />result of seepage from on-site sewage disposal systems. If buildings <br />are constructed on this soil, properly designing foundations and <br />footings and diverting runoff away from buildings help to prevent <br />structural damage because of shrinking and swelling. build nos and <br />roads should be designed to offset the limited ability of the soil in <br />this unit to support a load. <br />The map unit is in copability units IIs -3 (17), irrioated, and IVs -3 <br />(17), nonirrigated. <br />10/9/EE <br />PRELTMTNARY <br />SUBJECT TU REVISION <br />13.3-48 <br />