Fairfield-Nephi Area, Utah

Survey Area UT608• Utah

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high 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 Fairfield-Nephi Area, 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
Lodar-Rock outcrop complex, 30 to 70 percent slopes	54K	Somewhat excessively drained	D	Very limited	Very limited
Goldrun loamy fine sand, hummocky, 0 to 10 percent slopes	45K	Somewhat excessively drained	A	Not limited	Very limited
Donnardo stony loam, 2 to 8 percent slopes	37K	Well drained	B	Somewhat limited	Somewhat limited
Jericho gravelly fine sandy loam, 4 to 15 percent slopes	35K	Well drained	D	Very limited	Very limited
Linoyer very fine sandy loam, 2 to 5 percent slopes	35K	Well drained	B	Not limited	Not limited
Lundy-Rock outcrop complex, 30 to 70 percent slopes	34K	Somewhat excessively drained	D	Very limited	Very limited
Borvant cobbly loam, 8 to 25 percent slopes	34K	Well drained	D	Very limited	Very limited
Borvant cobbly loam, 2 to 8 percent slopes	32K	Somewhat excessively drained	D	Very limited	Very limited
Pachic Cryoborolls, north slopes	32K			Not rated	Not rated
Xeric Torriorthents-Rock outcrop complex, steep	29K			Not rated	Not rated
Amtoft, moist-Rock outcrop complex, 30 to 70 percent slopes	28K	Somewhat excessively drained	D	Very limited	Very limited
Hiko Peak stony sandy loam, 4 to 8 percent slopes	27K	Well drained	B	Not limited	Somewhat limited
Spager gravelly loam, 4 to 15 percent slopes	27K	Somewhat excessively drained	D	Very limited	Very limited
Amtoft-Rock outcrop complex, 30 to 70 percent slopes	26K	Somewhat excessively drained	D	Very limited	Very limited
Sumine-Reywat-Rock outcrop complex, 10 to 30 percent slopes	25K	Well drained	D	Very limited	Very limited
Shabliss very fine sandy loam, 2 to 5 percent slopes	24K	Well drained	D	Very limited	Very limited
Medburn fine sandy loam, 2 to 4 percent slopes	22K	Well drained	A	Not limited	Not limited
Bezzant gravelly loam, 30 to 60 percent slopes	20K	Well drained	C	Very limited	Very limited
Genola silt loam, 1 to 2 percent slopes	20K	Well drained	C	Not limited	Somewhat limited
Agassiz-Rock outcrop complex, 30 to 70 percent slopes	20K		D	Not rated	Not rated

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.

Entisols

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

Aridisols

Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.

What This Means

Building & Foundations

About 55% 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 63% 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.