Coachella Soil Series
K-Factor
0.24
Soil Erodibility Factor
Texture Class
fine sandy loam
Drainage Class
well drained
About Coachella
Deep, well drained soils formed in alluvium derived from granitic and mixed rock sources in the Colorado Desert. Found on alluvial fans and valleys with slopes of 0 to 3 percent. Low organic matter and calcareous throughout.
K factor values are sourced from the USDA Natural Resources Conservation Service (NRCS) SSURGO database.
Using Coachella 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
Named for the Coachella Valley. Mapped in Riverside and Imperial counties. Highly productive when irrigated; supports the date palm groves and winter vegetable industry of the Coachella Valley.
Counties Where Found
Coachella soil FAQ
What is the K factor for Coachella soil?
Coachella has a listed K factor of 0.24 in the Rapid RUSLE soil directory. Confirm final values against project specific soil survey data before submitting permit documents.
Where is Coachella soil found in California?
Coachella 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 Coachella used in RUSLE erosion calculations?
Use the Coachella 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 Coachella soil data
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