Lonoke and Prairie Counties, Arkansas

Survey Area AR680• Arkansas

The dominant drainage class is Poorly drained and the dominant hydrologic group is C/D (varies with drainage). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. 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 Lonoke and Prairie Counties, 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
Calhoun silt loam, 0 to 1 percent slopes	89K	Poorly drained	C/D	Very limited	Very limited
Dewitt silt loam, 0 to 1 percent slopes	81K	Poorly drained	C/D	Very limited	Very limited
Immanuel silt loam, 1 to 3 percent slopes	76K	Moderately well drained	C/D	Very limited	Very limited
Calloway silt loam, 0 to 1 percent slopes	73K	Somewhat poorly drained	C/D	Very limited	Very limited
Perry silty clay, 0 to 1 percent slopes	68K	Poorly drained	D	Very limited	Very limited
Hebert silt loam, 0 to 1 percent slopes	65K	Somewhat poorly drained	C	Very limited	Very limited
Immanuel silt loam, 3 to 8 percent slopes	55K	Moderately well drained	C	Very limited	Very limited
Water	53K		D	Not rated	Not rated
Tichnor silt loam, 0 to 1 percent slopes, frequently flooded	39K	Poorly drained	C/D	Very limited	Very limited
Stuttgart silt loam, 0 to 1 percent slopes	39K	Somewhat poorly drained	D	Very limited	Very limited
Kobel silty clay loam, frequently flooded	36K	Poorly drained	D	Very limited	Very limited
Muskogee silt loam, 3 to 8 percent slopes	20K	Moderately well drained	C/D	Very limited	Very limited
Perry silty clay, 0 to 1 percent slopes, frequently flooded	19K	Poorly drained	D	Very limited	Very limited
Portland silty clay, 0 to 1 percent slopes	18K	Somewhat poorly drained	D	Very limited	Very limited
Amy silt loam, 0 to 1 percent slopes, frequently flooded	18K	Poorly drained	C/D	Very limited	Very limited
Stuttgart silt loam, 1 to 3 percent slopes	17K	Somewhat poorly drained	D	Very limited	Very limited
Oaklimeter silt loam, occasionally flooded	16K	Moderately well drained	C	Very limited	Very limited
Leadvale silt loam, 3 to 8 percent slopes	14K	Moderately well drained	C/D	Very limited	Very limited
Immanuel-McKamie complex, 8 to 20 percent slopes	14K	Moderately well drained	C	Very limited	Very limited
Commerce silt loam, frequently flooded	14K	Somewhat poorly 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.

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.

Ultisols

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

Vertisols

High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.

Entisols

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

What This Means

Building & Foundations

About 93% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 93% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.