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Custom Soil Resource Report <br />of organic matter. Organic matter greatly increases the absorption and retention of <br />moisture and nutrients for plant growth. <br />The upper 40 inches of a soil is evaluated for use as topsoil. Also evaluated is the <br />reclamation potential of the borrow area Normal compaction, minor processing, and <br />other standard construction practices are assumed. <br />The soils are rated "good," "fair," or ''poor as potential sources of topsoil. The ratings <br />are based on the soil properties that affect plant growth; the ease of excavating, <br />loading, and spreading the material; and reclamation of the borrow area. Toxic <br />substances, soil reaction, and the properties that are inferred from soil texture, such <br />as available water capacity and fertility, affect plant growth. The ease of excavating, <br />loading, and spreading is affected by rock fragments, slope, depth to a water table, <br />soil texture, and thickness of suitable material. Reclamation of the borrow area is <br />affected by slope, depth to a water table, rock fragments, depth to bedrock or a <br />cemented pan, and toxic material. <br />Numerical ratings between 0.00 and 0.99 are given after the specified features. These <br />numbers indicate the degree to which the features limit the soils as sources of topsoil. <br />The lower the number, the greater the limitation. <br />The map unit components listed for each map unit in the accompanying Summary by <br />Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are <br />determined by the aggregation method chosen_ An aggregated rating class is shown <br />for each map unit. The components listed for each map unit are only those that have <br />the same rating class as listed for the map unit. The percent composition of each <br />component in a particular map unit is presented to help the user better understand the <br />percentage of each map unit that has the rating presented. <br />Other components with different ratings may be present in each map unit. The ratings <br />for all components, regardless of the map unit aggregated rating, can be viewed by <br />generating the equivalent report from the Soil Reports tab in Web Sal Survey or from <br />the Soil Data Mart site. Onsite investigation may be needed to validate these <br />interpretations and to confirm the identity of the sod on a given site. <br />28 <br />