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16 <br /> ALLUVIAL SOE S <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 /> t <br />