Washoe County, Nevada, North Part

Survey Area NV759• 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 Washoe County, Nevada, North 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
Longdis-Updike association	37K	Well drained	C	Very limited	Very limited
Devada-Nitpac-Bidrim association	37K	Well drained	D	Very limited	Very limited
Devada-Bieber association	31K	Well drained	D	Very limited	Very limited
Saraph-Hangrock-Tuffo association	30K	Well drained	D	Very limited	Very limited
Paypoint-Langston association	25K	Well drained	C	Not limited	Very limited
Hart Camp-Ninemile association	24K	Well drained	D	Very limited	Very limited
Ninemile-Tinpan-Crocan association	21K	Well drained	D	Very limited	Very limited
Devada-Reywat association	18K	Well drained	D	Very limited	Very limited
Ninemile-Hart Camp association	17K	Well drained	D	Very limited	Very limited
Bombadil-Ceejay association	17K	Well drained	D	Very limited	Very limited
Playas	15K	Very poorly drained		Very limited	Very limited
Ninemile-Madeline-Tinpan association	15K	Well drained	D	Very limited	Very limited
Davey-Corral association	14K	Somewhat excessively drained	A	Somewhat limited	Very limited
Ferver-Tunnison association	12K	Well drained	D	Very limited	Very limited
Tusune-Hartig association	11K	Well drained	C	Very limited	Very limited
Devada extremely cobbly loam, 4 to 15 percent slopes	11K	Well drained	D	Very limited	Very limited
Layview-Westbutte-Hapgood association	10K	Well drained	D	Very limited	Very limited
Ashdos-Ashtre-Hackwood association	10K	Well drained	C	Very limited	Very limited
Longdis-Dugway association	10K	Well drained	C	Very limited	Very limited
Ninemile-Madeline-Crocan association	9K	Well drained	D	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.

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 89% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas. A geotechnical assessment is recommended before building.

Septic Systems

About 100% 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.