• You are here: EPA Home
• Pacific Southwest
• Water
• California Water Quality Projects
• Region 7

California Water Quality Projects

California Water Quality Projects Quick Finder
California Water Quality Projects Home Region 3: Central Coast Region 6: Lahontan Region 9: San Diego	Region 1: North Coast Region 4: Los Angeles Region 7: Colorado River Basin Contact	Region 2: San Francisco Bay Region 5: Central Valley Region 8: Santa Ana

Colorado River Basin (Region 7)

Most links on this page are external to EPA's Web site.  

Phase XI

1. Water Quality of Salton Sea and Tributaries

Phase XIV

1. Imperial County Farm Bureau Watershed Program

Area Navigation

• Pacific Southwest Water Home
• Compliance & Enforcement
• Drinking Water
• Ground Water
• Grants, Loans & Other Resources
• Monitoring, Assessment & TMDLs
• Nonpoint Source Pollution
• NPDES Permits & Stormwater
• No Discharge Zones
• Oceans, Coasts & Estuaries
• Tribal Water Programs
• Water Quality Standards
• Water Sustainable Infrastructure
• Watersheds
• Wetlands
• About the Water Program
• Water Topics Index
• Water Archive
• About EPA Region 9 (Pacific Southwest)
  •  • News & Events
  •  • A-Z Index