Rich County, Utah

Survey Area UT604• Utah

The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Rich County, Utah. 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
Water	35K		D	Not rated	Not rated
Solak gravelly loam, 10 to 50 percent slopes	19K	Somewhat excessively drained	D	Very limited	Very limited
Kearl loam, 4 to 15 percent slopes	18K	Well drained	B	Very limited	Very limited
Duckree gravelly silt loam, 15 to 40 percent slopes	18K	Somewhat excessively drained	A	Very limited	Very limited
Pancheri silt loam, cool, 5 to 10 percent slopes	17K	Well drained	A	Not limited	Not limited
Kearl-Richville, dry, complex, 4 to 15 percent slopes	17K	Well drained	B	Very limited	Very limited
Woodpass loam, 2 to 8 percent slopes	17K	Well drained	A	Not limited	Not limited
Bear Lake silt loam	16K	Very poorly drained	C/D	Very limited	Very limited
Vanni loam, 10 to 30 percent slopes	14K	Well drained	B	Very limited	Very limited
Cutoff gravelly loam, 25 to 60 percent slopes	14K	Well drained	B	Very limited	Very limited
Cowco loam, 0 to 3 percent slopes	13K	Well drained	C	Very limited	Very limited
Lariat fine sandy loam, 4 to 10 percent slopes	13K	Well drained	B	Very limited	Very limited
Pancheri silt loam, cool, 1 to 5 percent slopes	13K	Well drained	B	Not limited	Somewhat limited
Dagan gravelly loam, moist, 25 to 40 percent slopes	13K	Well drained	B	Very limited	Very limited
Falula-Kearl complex, 4 to 25 percent slopes	12K	Somewhat excessively drained	D	Very limited	Very limited
Solak-Ranruff-Rock outcrop complex, 30 to 60 percent slopes	11K	Somewhat excessively drained	D	Very limited	Very limited
Bullnel loam, 15 to 30 percent slopes	11K	Well drained	C	Very limited	Very limited
Zagg complex, 2 to 15 percent slopes	11K	Well drained	C	Somewhat limited	Very limited
Lucky Star gravelly loam, 25 to 60 percent slopes	11K	Well drained	B	Very limited	Very limited
Murphy-Richville, dry complex, 4 to 8 percent slopes	11K	Well drained	C	Somewhat 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.

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.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

What This Means

Building & Foundations

About 65% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 72% 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.