Arkansas County, Arkansas

Survey Area AR001• Arkansas

The dominant drainage class is Poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). 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 Arkansas 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
Dewitt silt loam, 0 to 1 percent slopes	127K	Poorly drained	C/D	Very limited	Very limited
Stuttgart silt loam, 0 to 1 percent slopes	99K	Somewhat poorly drained	D	Very limited	Very limited
Stuttgart silt loam, 1 to 3 percent slopes	48K	Somewhat poorly drained	D	Very limited	Very limited
Tichnor silt loam, 0 to 1 percent slopes, frequently flooded	39K	Poorly drained	C/D	Very limited	Very limited
Perry clay, 0 to 1 percent slopes, frequently flooded	37K	Poorly drained	D	Very limited	Very limited
Kobel silty clay, 0 to 1 percent slopes, frequently flooded	35K	Poorly drained	D	Very limited	Very limited
Water	33K		D	Not rated	Not rated
Immanuel silt loam, 1 to 3 percent slopes	32K	Moderately well drained	C	Very limited	Very limited
Immanuel silt loam, 3 to 8 percent slopes	21K	Moderately well drained	C	Very limited	Very limited
Ethel silt loam, 0 to 1 percent slopes	21K	Poorly drained	C/D	Very limited	Very limited
Perry clay, 0 to 1 percent slopes	15K	Poorly drained	D	Very limited	Very limited
Hebert silt loam, 0 to 1 percent slopes	13K	Somewhat poorly drained	C	Very limited	Very limited
Keo loam, 1 to 6 percent slopes, occasionally flooded	12K	Well drained	B	Very limited	Very limited
Portland clay, 0 to 1 percent slopes, frequently flooded	10K	Somewhat poorly drained	D	Very limited	Very limited
Yorktown silty clay, 0 to 1 percent slopes, frequently flooded, frequently ponded	10K	Very poorly drained	D	Very limited	Very limited
Tichnor silt loam, ponded, 0 to 1 percent slopes, frequently flooded	9K	Very poorly drained	C/D	Very limited	Very limited
Lagrue silty clay loam, 0 to 1 percent slopes	9K	Poorly drained	D	Very limited	Very limited
Portland clay, 0 to 1 percent slopes	9K	Somewhat poorly drained	D	Very limited	Very limited
Immanuel silt loam, 8 to 15 percent slopes	8K	Moderately well drained	C	Very limited	Very limited
Muskogee silt loam, 3 to 8 percent slopes	8K	Moderately well drained	C/D	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.

Vertisols

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

What This Means

Building & Foundations

About 94% 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 94% 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.