Soil survey area

Sevier County Area, Utah

Survey Area UT628• Utah
The short version

The most common soil here is Hiko Peak, on about 7% of the land: a cobbly loam, a balanced mix that crumbles in your hand. Sanpete and Torriorthents come next.

About 89% of the land drains well, and 6% stays wet for long stretches; groundwater comes within two feet of the surface under 4% of it.

USDA rates 80% of the land very limited for a standard septic drain field, and 71% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 4% of the land floods occasionally or more, and bedrock lies within 40 inches under 35% 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 Sevier County Area, Utah, each drawn five feet deep from its official USDA description, in its recorded colors.

Hiko Peak
7% of the area
Cobbly loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Aridisols
Sanpete
7% of the area
Gravelly fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Aridisols
Horrocks
4% of the area
Very cobbly sandy clay loam topsoil · well drained
Gritty but holds together. Drains moderately.
Mollisols
Annabella
4% of the area
Cobbly sandy loam topsoil · somewhat excessively drained
Gritty and crumbly. Drains fast and warms early in spring.
Entisols
Amtoft
3% of the area
Flaggy loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Aridisols

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 B (moderate infiltration). The most common soil order is Aridisols — dry-climate soils with limited organic matter and often calcium carbonate accumulation. 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 Sevier County Area, Utah. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Torriorthents-Xeric Haplogypsids association, 5 to 35 percent slopes 18K Well drainedDVery limitedVery limited
Hiko Peak, steep-Saxby-Rock outcrop association, 30 to 70 percent slopes 13K Well drainedBVery limitedVery limited
Horrocks-Krueger-Demner association, 8 to 40 percent slopes 9K Well drainedCVery limitedVery limited
Sanpete very cobbly sandy loam, 8 to 30 percent slopes 8K Well drainedBVery limitedVery limited
Sanpete-Lisade association, 2 to 15 percent slopes 7K Well drainedBNot limitedSomewhat limited
Red Butte-Hiko Peak, steep association, 15 to 70 percent slopes 7K Well drainedCVery limitedVery limited
Torriorthents, dry-Hiko Peak, dry association, 10 to 40 percent slopes 7K Well drainedDVery limitedVery limited
Amtoft-Rock outcrop complex, 15 to 60 percent slopes 6K Well drainedDVery limitedVery limited
Bodacious-Reebok-Pass Canyon complex, 15 to 60 percent slopes 6K Well drainedDVery limitedVery limited
Searla, dry-Demner-Bezzant association, 30 to 60 percent slopes 6K Well drainedCVery limitedVery limited
Rock outcrop-Wala, steep-Annabella, steep association, 15 to 75 percent slopes 6K DVery limitedVery limited
Redfield silt loam, 1 to 3 percent slopes 5K Well drainedBNot limitedSomewhat limited
Naser silt loam, 0 to 2 percent slopes 5K Well drainedBNot limitedSomewhat limited
Lodar-Amtoft-Fontreen complex, 40 to 70 percent slopes 5K Well drainedDVery limitedVery limited
Hiko Peak, dry-Tarnach-Rock outcrop association, 4 to 45 percent slopes 5K Well drainedBVery limitedVery limited
Povertyflat very gravelly loam, 3 to 15 percent slopes 5K Well drainedBNot limitedVery limited
Hiko Peak, south-Annabella complex, 5 to 30 percent slopes 4K Well drainedBVery limitedVery limited
Horrocks, steep-Demner-Wallsburg association, 30 to 70 percent slopes 4K Well drainedCVery limitedVery limited
Vicking-Krueger association, 2 to 15 percent slopes 4K Well drainedCSomewhat limitedVery limited
Krueger loam, 2 to 8 percent slopes 4K Well drainedCSomewhat 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.

Aridisols
Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
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 71% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes. A geotechnical assessment is recommended before building.

Septic Systems

About 80% 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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