Humboldt County, Nevada, West Part

Survey Area NV760• Nevada

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 Humboldt County, Nevada, West Part. 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
Wylo-Bucklake-Rock outcrop association	111K	Well drained	D	Very limited	Very limited
Typic Udorthents, sandy dunes-Typic Udorthents, interdunes complex	89K	Somewhat poorly drained	C/D	Very limited	Very limited
Typic Udorthents, 0 to 1 percent slopes	81K	Somewhat poorly drained	D	Very limited	Very limited
Sondoa-Isolde association	75K	Well drained	C	Somewhat limited	Very limited
Boton complex, occasionally flooded	70K	Well drained	C	Somewhat limited	Very limited
Rocconda association	56K	Well drained	D	Very limited	Very limited
Ninemile-Sumine-Softscrabble association	53K	Well drained	D	Very limited	Very limited
Rocconda-Coppereid-Soughe complex	47K	Well drained	D	Very limited	Very limited
Boton-Playas association	39K	Well drained	C	Not limited	Very limited
Grumblen-Pickup association MLRA 27	38K	Well drained	D	Very limited	Very limited
Bullump-Sumine-Cleavage association	37K	Well drained	C	Very limited	Very limited
Skedaddle-Rock outcrop-Sumya complex	34K	Well drained	D	Very limited	Very limited
Tumtum very cobbly loam, 4 to 15 percent slopes	32K	Well drained	D	Very limited	Very limited
Isolde-Ragtown association MLRA 27	32K	Excessively drained	A	Very limited	Very limited
Shawave-Deadyon association	31K	Well drained	C	Not limited	Not limited
Devada-Bucklake complex	30K	Well drained	D	Very limited	Very limited
Tenabo-Gwena-Fulstone association	29K	Well drained	D	Very limited	Very limited
Singatse-Rocconda-Badland association	29K	Somewhat excessively drained	D	Very limited	Very limited
Jaybee-Soughe-Hoot complex	28K	Well drained	D	Very limited	Very limited
Mazuma-Toulon-Isolde association	27K	Excessively drained	A	Very 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.

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.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 77% 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 96% 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.