Soil survey area

El Paso County Area, Colorado

Survey Area CO625• Colorado
The short version

The most common soil here is Truckton, on about 9% of the land: a coarse sandy loam, gritty and crumbly. Blakeland and Bresser come next.

About 98% of the land drains well.

USDA rates 52% of the land very limited for a standard septic drain field, and 19% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 3% of the land floods occasionally or more, and bedrock lies within 40 inches under 15% 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 El Paso County Area, Colorado, each drawn five feet deep from its official USDA description, in its recorded colors.

Truckton
9% of the area
Coarse sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Mollisols
Blakeland
7% of the area
Coarse sand topsoil · somewhat excessively drained
Loose sand that holds almost no water.
Mollisols
Bresser
6% of the area
Sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Mollisols
Valent
6% of the area
Sand topsoil · excessively drained
Loose sand that holds almost no water.
Entisols
Olney
5% of the area
Loamy sand topsoil · well drained
Gritty and loose. Water runs straight through it.
Aridisols
Ascalon
4% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
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 A (high infiltration, low 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 El Paso County Area, Colorado. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Blakeland loamy sand, 1 to 9 percent slopes 73K Somewhat excessively drainedANot limitedVery limited
Truckton sandy loam, 3 to 9 percent slopes 73K Well drainedANot limitedNot limited
Valent sand, 1 to 12 percent slopes, dry 63K Excessively drainedANot limitedVery limited
Bresser sandy loam, cool, 3 to 5 percent slopes 43K Well drainedBNot limitedSomewhat limited
Olney sandy loam, 0 to 3 percent slopes 40K Well drainedBNot limitedNot limited
Ascalon sandy loam, 1 to 3 percent slopes 32K Well drainedBNot limitedSomewhat limited
Truckton sandy loam, 0 to 3 percent slopes 29K Well drainedANot limitedNot limited
Ascalon sandy loam, 3 to 9 percent slopes 27K Well drainedBNot limitedNot limited
Columbine gravelly sandy loam, 0 to 3 percent slopes 27K Well drainedANot limitedVery limited
Ellicott loamy coarse sand, 0 to 5 percent slopes 26K Somewhat excessively drainedAVery limitedVery limited
Bresser sandy loam, cool, 0 to 3 percent slopes 26K Well drainedBNot limitedSomewhat limited
Ustic Torrifluvents, loamy 24K Well drainedBNot limitedSomewhat limited
Wigton loamy sand, 1 to 8 percent slopes 23K Excessively drainedANot limitedVery limited
Bijou sandy loam, 3 to 8 percent slopes 22K Somewhat excessively drainedANot limitedNot limited
Midway-Razor clay loams, dry, 1 to 18 percent slopes 22K Well drainedDVery limitedVery limited
Vonid sandy loam, 0 to 5 percent slopes 21K Somewhat excessively drainedANot limitedNot limited
Kettle gravelly loamy sand, 8 to 40 percent slopes 20K Somewhat excessively drainedBVery limitedVery limited
Area not surveyed, access denied 20K Not ratedNot rated
Pring coarse sandy loam, 3 to 8 percent slopes 20K Well drainedBNot limitedNot limited
Schamber-Razor complex, 8 to 50 percent slopes 18K Well drainedAVery 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.
Aridisols
Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

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 52% 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

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