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16 <br />ALLUVIAL SOILS <br />Alluvial soils are comprised of soil material, such as sand, silt or clay, deposited on land by <br />streams. Such soils are normally located in flood prone areas and have been identified using the <br />Soil Survey of Orange County, N. C. Three soil types, Altavista [Aa], Congaree [Cp], and <br />Chewacla [Ch], have been identified, and, combined, they comprise 48.6 acres ofthe total area <br />within the project boundaries [see attached map]. <br />