Soil survey area

Parmer County, Texas

Survey Area TX369• Texas
The short version

The most common soil here is Olton, on about 42% of the land: a clay loam, firm and a little sticky. Acuff and Pullman come next.

About 98% of the land drains well.

USDA rates 66% of the land very limited for a standard septic drain field, and 4% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 2% of the land floods occasionally or more.

Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.

The ground underfoot

The soils you're most likely standing on

The biggest named soils in Parmer County, Texas, each drawn five feet deep from its official USDA description, in its recorded colors.

Olton
42% of the area
Clay loam topsoil · well drained
Firm and a little sticky. Holds water and nutrients well.
Mollisols
Acuff
17% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols
Pullman
13% of the area
Clay loam topsoil · well drained
Firm and a little sticky. Holds water and nutrients well.
Mollisols
Amarillo
6% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Estacado
4% of the area
Clay loam topsoil · well drained
Firm and a little sticky. Holds water and nutrients well.
Mollisols
Bovina
3% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols

Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.

The biggest mapped areas

The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Parmer County, Texas. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Olton clay loam, 0 to 1 percent slopes 250K Well drainedCSomewhat limitedVery limited
Acuff loam, 0 to 1 percent slopes 64K Well drainedBNot limitedSomewhat limited
Pullman clay loam, 0 to 1 percent slopes 55K Well drainedCSomewhat limitedVery limited
Acuff loam, 1 to 3 percent slopes 30K Well drainedBNot limitedSomewhat limited
Olton clay loam, 1 to 3 percent slopes 30K Well drainedCSomewhat limitedVery limited
Amarillo fine sandy loam, 0 to 1 percent slopes 26K Well drainedBNot limitedSomewhat limited
Bovina loam, 1 to 3 percent slopes 11K Well drainedBNot limitedSomewhat limited
Amarillo fine sandy loam, 1 to 3 percent slopes 9K Well drainedBNot limitedSomewhat limited
Bovina loam, 0 to 1 percent slopes 8K Well drainedBNot limitedSomewhat limited
Estacado clay loam, 1 to 3 percent slopes 6K Well drainedBSomewhat limitedSomewhat limited
Posey fine sandy loam, 3 to 8 percent slopes 6K Well drainedBNot limitedSomewhat limited
Arvana fine sandy loam, 0 to 1 percent slopes 6K Well drainedCSomewhat limitedVery limited
Bippus clay loam, 0 to 2 percent slopes, occasionally flooded 5K Well drainedBVery limitedVery limited
Bippus and Sprone clay loams, 0 to 2 percent slopes, frequently flooded 5K Well drainedBVery limitedVery limited
Friona loam, 0 to 1 percent slopes 4K Well drainedCSomewhat limitedVery limited
Posey fine sandy loam, 1 to 3 percent slopes 4K Well drainedBNot limitedSomewhat limited
Berda fine sandy loam, 5 to 8 percent slopes 4K Well drainedBNot limitedSomewhat limited
Estacado clay loam, 0 to 1 percent slopes 4K Well drainedBSomewhat limitedSomewhat limited
Estacado loam, 1 to 3 percent slopes 4K Well drainedBSomewhat limitedSomewhat limited
Randall clay, 0 to 1 percent slopes, frequently ponded 3K Poorly drainedDVery limitedVery 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.

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

What This Means

Building & Foundations

Most soils are generally favorable for residential construction. Standard foundations are usually viable, though site-specific evaluation is always recommended.

Septic Systems

About 66% 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.

Look Up a Specific Address

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