A polygon layer showing soil types in Los Angeles County. This layer shows the delineation and the county soil number (2-180). These soils have runoff coefficient curves associated with them found in the hydrology manual (http://ladpw.org/wrd/publication/) that allow an individual to determine how much runoff results from rainfall. This includes soils in the Antelope Valley. The layer was created by scanning the Department of Public Work’s Water Resources Division Soil maps.
For use in DPW’s Modified Rational Method Hydrology Model
The latest version of this data is available at http://ladpw.org/wrd/publication/index.cfm