Coconino County Area, Arizona, North Kaibab Part

Survey Area AZ629• Arizona

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 Entisols — young soils with little profile development, often on floodplains or steep slopes. 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 Coconino County Area, Arizona, North Kaibab 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
Arches-Pensom complex, 4 to 12 percent slopes	144K	Well drained	D	Very limited	Very limited
Curhollow-Mellenthin complex, 2 to 12 percent slopes	82K	Well drained	D	Very limited	Very limited
Torriorthents-Rock outcrop complex, 25 to 65 percent slopes	45K	Well drained	D	Not rated	Not rated
Arches-Pensom complex, cool, 4 to 12 percent slopes	31K	Well drained	D	Very limited	Very limited
Kinan-Pennell complex, 4 to 15 percent slopes	31K	Well drained	A	Somewhat limited	Somewhat limited
Mellenthin very gravelly loam, 1 to 25 percent slopes	28K	Well drained	D	Very limited	Very limited
Rock outcrop	26K		D	Not rated	Not rated
Yumtheska very gravelly loam, 4 to 30 percent slopes	23K	Well drained	D	Very limited	Very limited
Aneth fine sand, 2 to 16 percent slopes	22K	Somewhat excessively drained	A	Somewhat limited	Somewhat limited
Pensom fine sand, 2 to 16 percent slopes	20K	Excessively drained	A	Somewhat limited	Very limited
Rock outcrop-Torriorthents complex, warm, 25 to 65 percent slopes	19K		D	Not rated	Not rated
Strych loam, 1 to 4 percent slopes	15K	Well drained	B	Not limited	Somewhat limited
Mellenthin very gravelly loam, 30 to 60 percent slopes	15K	Well drained	D	Very limited	Very limited
Pagina-Wahweap complex, 3 to 16 percent slopes	14K	Somewhat excessively drained	A	Somewhat limited	Very limited
Monue-Seeg complex, 1 to 6 percent slopes	14K	Well drained	A	Not limited	Very limited
Barx gravelly loam, 1 to 6 percent slopes	13K	Well drained	B	Not limited	Somewhat limited
Curob very gravelly loam, 2 to 12 percent slopes	13K	Well drained	D	Not limited	Very limited
Sheppard loamy fine sand, 5 to 15 percent slopes	12K	Excessively drained	A	Somewhat limited	Very limited
Klondike sandy clay loam, 2 to 15 percent slopes MLRA 35	11K	Well drained	D	Very limited	Very limited
Jocity silty clay loam, 1 to 3 percent slopes	11K	Well drained	C	Somewhat limited	Somewhat 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.

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.

Alfisols

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

What This Means

Building & Foundations

About 56% 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 69% 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.