White County, Arkansas

Survey Area AR145• Arkansas

The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate runoff). The most common soil order is Ultisols — strongly weathered soils with clay-enriched subsoils, common in warm humid climates. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in White County, Arkansas. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Linker fine sandy loam, 3 to 8 percent slopes	83K	Well drained	C	Very limited	Very limited
Leadvale silt loam, 1 to 3 percent slopes	48K	Moderately well drained	C/D	Very limited	Very limited
Calhoun silt loam, 0 to 1 percent slopes	41K	Poorly drained	C/D	Very limited	Very limited
Kobel silty clay, frequently flooded	41K	Poorly drained	D	Very limited	Very limited
Calloway silt loam, 0 to 1 percent slopes	38K	Somewhat poorly drained	C/D	Very limited	Very limited
Steprock-Enders complex, 12 to 30 percent slopes	37K	Well drained	C	Very limited	Very limited
Linker gravelly fine sandy loam, 3 to 8 percent slopes	35K	Well drained	C	Very limited	Very limited
Steprock-Mountainburg complex, 8 to 12 percent slopes	33K	Well drained	C	Somewhat limited	Very limited
Immanuel silt loam, 1 to 3 percent slopes	25K	Moderately well drained	C/D	Very limited	Very limited
Tichnor silt loam, 0 to 1 percent slopes, frequently flooded	24K	Poorly drained	C/D	Very limited	Very limited
Enders-Steprock complex, 12 to 30 percent slopes	22K	Well drained	D	Very limited	Very limited
Leadvale silt loam, 3 to 8 percent slopes	21K	Moderately well drained	C/D	Very limited	Very limited
Barling silt loam, occasionally flooded	21K	Moderately well drained	C	Very limited	Very limited
Steprock-Linker complex, 3 to 8 percent slopes	18K	Well drained	C	Somewhat limited	Very limited
Dewitt silt loam, 0 to 1 percent slopes	16K	Poorly drained	C/D	Very limited	Very limited
Jackport silty clay loam, 0 to 1 percent slopes	16K	Poorly drained	D	Very limited	Very limited
Mountainburg stony fine sandy loam, 1 to 12 percent slopes, rocky	16K	Well drained	D	Very limited	Very limited
Taft silt loam, 0 to 2 percent slopes	14K	Somewhat poorly drained	C/D	Very limited	Very limited
Sidon loam, 1 to 3 percent slopes	13K	Moderately well drained	C	Very limited	Very limited
Oaklimeter silt loam, frequently flooded	13K	Moderately well drained	C	Very limited	Very limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Ultisols

Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 91% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 100% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.