The silt and sand sized-particles are predominantly quartz and feldspar. The Ap horizon has hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 or 3. Undisturbed soils have 2 to 3 inch thick very dark grayish brown A1 horizons. Textures are loam or sandy loam. The Bt horizon or BE horizon where present has hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 4 or 6.
Textures are commonly sandy loam or loam but subhorizons are sandy clay loam or loam.
Clay films in the Bt horizons range from faint to distinct. The C horizon has 10YR hue and likely has somewhat higher value and chroma than the Bt horizon. It has coarser texture than the B horizon and is more gravelly. These are the Brentsville , Dunellen , and Rigley series in the same family. Brentsville soils are moderately deep over bedrock.