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Abstract:
This GIS layer was created to delineate catchment areas for Municipal Separate Storm Sewer System (MS4) outfalls under the Los Angeles County Flood Control District (LACFCD) jurisdiction pursuant to a 2012 National Pollutant Discharge Elimination System (NPDES) permit.
Description:
The data is a compilation of storm drain hydrology studies completed by the LACFCD. To learn more about MS4 outfalls and corresponding stormwater catchment areas, please visit the NPDES site, hosted by the United States Environmental Protection Agency. This project is a work in progress. As more catchment areas are added, this page and GIS data download will be updated.
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 Stormwater Catchment Areas |