Navarro County, Texas

Survey Area TX349• Texas

The dominant drainage class is Moderately well 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 Navarro County, Texas. 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
Crockett fine sandy loam, 1 to 3 percent slopes	73K	Moderately well drained	C	Very limited	Very limited
Houston Black clay, 1 to 3 percent slopes	51K	Moderately well drained	D	Very limited	Very limited
Water	49K		D	Not rated	Not rated
Trinity clay, 0 to 1 percent slopes, frequently flooded	44K	Moderately well drained	D	Very limited	Very limited
Wilson clay loam, 1 to 3 percent slopes	37K	Moderately well drained	C	Very limited	Very limited
Crockett fine sandy loam, 0 to 1 percent slopes	36K	Moderately well drained	C	Very limited	Very limited
Trinity clay, 0 to 1 percent slopes, occasionally flooded	33K	Moderately well drained	D	Very limited	Very limited
Wilson clay loam, 0 to 1 percent slopes	27K	Moderately well drained	D	Very limited	Very limited
Mabank very fine sandy loam, 0 to 1 percent slopes	26K	Moderately well drained	D	Very limited	Very limited
Burleson clay, 0 to 1 percent slopes	23K	Moderately well drained	D	Very limited	Very limited
Crockett soils, 2 to 5 percent slopes, eroded	22K	Moderately well drained	C	Very limited	Very limited
Kaufman clay, 0 to 1 percent slopes, occasionally flooded	17K	Moderately well drained	D	Very limited	Very limited
Axtell fine sandy loam, 1 to 3 percent slopes	17K	Moderately well drained	C	Very limited	Very limited
Burleson clay, 1 to 3 percent slopes	15K	Moderately well drained	D	Very limited	Very limited
Heiden clay, 3 to 5 percent slopes	14K	Well drained	D	Very limited	Very limited
Heiden clay, 3 to 5 percent slopes, eroded	14K	Well drained	D	Very limited	Very limited
Crockett fine sandy loam, 3 to 5 percent slopes	12K	Moderately well drained	C	Very limited	Very limited
Mabank very fine sandy loam, 1 to 3 percent slopes	11K	Moderately well drained	D	Very limited	Very limited
Lamar clay loam, 3 to 8 percent slopes	10K	Well drained	B	Somewhat limited	Somewhat limited
Ferris and Heiden clays, 5 to 15 percent slopes, eroded	10K	Well drained	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.

Vertisols

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

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Inceptisols

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

What This Means

Building & Foundations

About 89% of soils are rated "very limited" for dwellings with basements. Specific challenges include flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 89% 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.