Los Angeles County, California, Southeastern Part

Survey Area CA696• California

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 Los Angeles County, California, Southeastern 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
Urban land-Hueneme, drained-San Emigdio complex, 0 to 2 percent slopes	67K		D	Very limited	Very limited
Urban land-Palmview-Tujunga complex, 0 to 5 percent slopes	64K		D	Very limited	Very limited
Urban land-Azuvina-Montebello complex, 0 to 5 percent slopes	40K	Well drained	C	Not limited	Not rated
Urban land-Palmview-Tujunga, gravelly complex, 2 to 9 percent slopes	25K		A	Not limited	Very limited
Counterfeit-Urban land complex, 10 to 35 percent slopes, terraced	25K	Somewhat poorly drained	C	Very limited	Very limited
Urban land-Biscailuz-Hueneme, drained complex, 0 to 2 percent slopes	22K		D	Very limited	Not rated
Urban land-Soboba complex, 0 to 5 percent slopes	17K	Somewhat excessively drained	D	Very limited	Very limited
Urban land-Sorrento-Arbolado complex, 2 to 9 percent slopes	17K	Well drained	C	Not rated	Very limited
Urban land-Biscailuz-Pico complex, 0 to 2 percent slopes	16K		D	Very limited	Very limited
Urban land-Windfetch-Typic Haploxerolls complex, 0 to 2 percent slopes	15K		D	Not rated	Very limited
Zaca-Apollo, warm complex, 20 to 55 percent slopes	14K	Well drained	C	Very limited	Very limited
Urban land-Ballona-Typic Xerorthents, fine substratum complex, 0 to 5 percent slopes	13K	Well drained	C	Not rated	Very limited
Urban land-Metz-Pico complex, 0 to 2 percent slopes	13K		D	Very limited	Very limited
Urban land-Abaft-Marina complex, 0 to 15 percent slopes	12K		D	Not limited	Very limited
Urban land-Anthraltic Xerorthents, loamy substratum-Grommet complex, 0 to 5 percent slopes	12K		D	Not rated	Not rated
Urban land-Windfetch-Centinela complex, 0 to 5 percent slopes	12K	Well drained	D	Not rated	Very limited
Water	11K		D	Not rated	Not rated
Urban land-Marina complex, 0 to 5 percent slopes	11K		D	Not rated	Not rated
Urban land-Thums-Pierview complex, 0 to 5 percent slopes	11K	Well drained	C	Not rated	Very limited
Vista-Cieneba complex, 30 to 85 percent slopes	10K	Well drained	B	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.

Entisols

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

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Alfisols

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

What This Means

Building & Foundations

About 58% 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 77% 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.