This layer was created to represent soil types in Los Angeles County. Polygons were derived from scanned soil maps. Attributes include a soil number (2-180), corresponding to runoff coefficient values in a Hydrology Manual, provided by the Los Angeles County Department of Public Works, Water Resources Division.
For use in DPW’s Modified Rational Method Hydrology Model
Water Resources is a Division of the Los Angeles County Department of Public Works. Please visit their website for posted publications, including the above mentioned Hydrology Manual.
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Feature Class Name: NRCS_SOIL
Feature Dataset Name (if applicable):
Reference Date: 2004
Update Frequency: As Needed