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i03 Delta PrimarySecondary Zones

  • Published by: California Department of Water Resources
  • Last updated: Friday, June 6, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Delta Primary Zone Boundary The history of the primary zone boundary is as follows: the Primary Zone was defined in the 1992 Delta Flood Protection Ac...

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