Lopez Lake Reservoir

• Water Data
• Zone 3 - Lopez Lake and Terminal Watershed Sanitation Survey
• NPDES Annual Notification
• Invasive Mussel Program

Santa Margarita Lake (Salinas Reservoir)

• Water Data
• CSA 23 - Santa Margarita Area Watershed Sanitation Survey
• Salinas Reservoir Watershed Sanitation Survey
• NPDES Annual Notification
• Invasive Mussel Program 
  • Santa Margarita Lake Mussel Inspection Program

Lake Nacimiento

• Water Data
• Nacimiento Watershed Sanitation Survey
• Nacimiento Water Project Sanitation Survey
• Invasive Mussel Program
  • Lake Nacimiento Mussel Inspection Program 
  • Resident Vessel Program

Whale Rock Reservoir

• Water Data
• CSA 10 - Cayucos Area Watershed Sanitation Survey

Water Quality Information

• Surfsafeslo.org - Countywide Beach Water Quality Status
• Swimsafeslo.org - Countywide Public Swimming Pools and Spa Water Quality Status
• Public Works Water Quality Lab 
• Watershed Sanitary Surveys

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