Indio Soil Series
USDA Code: CA0347
K-Factor
0.37
Soil Erodibility Factor
Texture Class
very fine sandy loam
Drainage Class
well drained
About Indio
Deep, well drained soils formed in alluvium and lacustrine deposits derived from mixed sedimentary rock sources in the Salton Trough. Very fine sandy loam to silt loam texture throughout. Found on nearly level alluvial plains and fans, slopes of 0 to 2 percent.
K factor values are sourced from the USDA Natural Resources Conservation Service (NRCS) SSURGO database.
Using Indio in a RUSLE calculation
For a California construction project, use the soil K factor with rainfall erosivity, slope length and steepness, cover management, and support practice inputs. The K factor represents the soil erodibility portion of the model, so selecting the soil series that matches the site is important for defensible stormwater documentation.
In a SWPPP workflow, the practical question is not just what soil type is mapped near the project. It is whether the mapped series, K factor, and drainage assumptions match the site evidence well enough to support the RUSLE or RUSLE2 calculation.
California Distribution
One of the most productive soils of the Coachella and Imperial valleys, mapped in Riverside and Imperial counties. Named for the city of Indio. The silt-dominated texture is highly erodible by wind and water; requires careful irrigation management.
Counties Where Found
Indio soil FAQ
What is the K factor for Indio soil?
Indio has a listed K factor of 0.37 in the Rapid RUSLE soil directory. Confirm final values against project specific soil survey data before submitting permit documents.
Where is Indio soil found in California?
Indio is mapped in Imperial, Riverside. County mapping is based on available soil series data and should be verified for the exact project location.
How is Indio used in RUSLE erosion calculations?
Use the Indio K factor as the soil erodibility input in RUSLE or RUSLE2, along with rainfall, slope, cover, and support practice factors for the site.
Calculate erosion risk with Indio soil data
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