Soil survey area

Murray County, Oklahoma

Survey Area OK099• Oklahoma
The short version

The most common soil here is Clarita, on about 14% of the land: a clay, sticky when wet and rock-hard when dry. Kiti and Chigley come next.

About 51% of the land drains well.

USDA rates 90% of the land very limited for a standard septic drain field, and 83% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 11% of the land floods occasionally or more, and bedrock lies within 40 inches under 45% of it.

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 Murray County, Oklahoma, each drawn five feet deep from its official USDA description, in its recorded colors.

Clarita
14% of the area
Clay topsoil · moderately well drained
Sticky when wet and rock-hard when dry. Drains slowly.
Vertisols
Kiti
14% of the area
Flaggy silty clay loam topsoil · well drained
Smooth and slightly sticky. Holds a lot of water.
Mollisols
Chigley
7% of the area
Gravelly sandy loam topsoil · moderately well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Durant
6% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols
Garvin
6% of the area
Silty clay loam topsoil · moderately well drained
Smooth and slightly sticky. Holds a lot of water.
Mollisols
Rayford
5% of the area
Cobbly 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 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 Murray County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Kiti-Rock outcrop complex, 8 to 20 percent slopes 54K Well drainedDVery limitedVery limited
Clarita clay, 3 to 5 percent slopes, moderately eroded 18K Moderately well drainedCVery limitedVery limited
Clarita clay, 5 to 12 percent slopes, moderately eroded 17K Moderately well drainedCVery limitedVery limited
Garvin and Elandco soils, 0 to 1 percent slopes, frequently flooded 15K Moderately well drainedCVery limitedVery limited
Rayford cobbly loam, 5 to 20 percent slopes 12K Well drainedDVery limitedVery limited
Rock outcrop-Kiti complex, 20 to 45 percent slopes 12K DVery limitedVery limited
Durant loam, 3 to 5 percent slopes, eroded 9K Moderately well drainedDVery limitedVery limited
Shidler-Rock outcrop complex, 3 to 8 percent slopes 8K Well drainedDVery limitedVery limited
Chigley and Clarita soils, 3 to 5 percent slopes, gullied 7K Moderately well drainedCSomewhat limitedVery limited
Claremore-Rock outcrop complex, 1 to 5 percent slopes 6K Well drainedDVery limitedVery limited
Chigley gravelly sandy loam, 1 to 5 percent slopes 6K Moderately well drainedCSomewhat limitedVery limited
Garvin silty clay, 0 to 1 percent slopes, occasionally flooded 6K Moderately well drainedDVery limitedVery limited
Chigley gravelly sandy loam, 5 to 12 percent slopes 6K Moderately well drainedCSomewhat limitedVery limited
Durant loam, 1 to 3 percent slopes 6K Moderately well drainedDVery limitedVery limited
Timhill stony silt loam, 5 to 30 percent slopes 6K Well drainedDVery limitedVery limited
Kiti-Rock outcrop complex, 3 to 8 percent slopes 5K Well drainedDVery limitedVery limited
Water 5K DNot ratedNot rated
Travertine-Bromide complex, 5 to 25 percent slopes 4K Well drainedDVery limitedVery limited
Shidler-Clarita complex, 3 to 8 percent slopes 4K Moderately well drainedDVery limitedVery limited
Burleson clay, 1 to 3 percent slopes 4K Moderately well 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.

Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Vertisols
High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.
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 83% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 90% 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

Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.

Look Up a Specific Address

📍