Log In

Los Angeles County Sub Watersheds

Abstract:
Boundaries of sub watersheds or watershed sub areas. Original areas were drawn on U.S.G.S. 7 ½ minute, 1:24,000 scale topo quad sheets by Hydraulic Water Conservation Division. Digitized into ComputerVision CADDS4 by Environmental Programs Division (EPD). Converted to Atlas GIS Atlas Graphic Format (.agf) by EPD. Cleaned up, topology built, downstream connectivity developed in Atlas GIS. Converted to ArcView Shape (.shp) by EPD.
Purpose:
Drainage Basins for Los Angeles County as used for the National Pollutant Discharge Elimination System (NPDES) Permit 

Download Data

Using GIS Data on this site

GIS Data downloaded from this site generally requires GIS software to view. Click here for a list of GIS Data Viewers

GIS data available on this website is provided AS IS - please read the GIS Data Portal Terms of Use

Data Field Descriptions

GIS Source Information
Database Name:
Feature Class Name:
Feature Dataset Name (if applicable):
Reference Date: 2005
Accuracy: Parcel
Update Frequency: As Needed
Access Constraints:None

Contact Information
Francis Calasanz

County of Los Angeles
Department of Public Works
Survey/Mapping and Property Management Division
900 S. Fremont Ave
Alhambra, CA 91803
fcalasan@dpw.lacounty.gov
626-458-3542

Leave a Reply