Intensive Survey Branch Overview

The Intensive Survey Branch (ISB) collects and interprets a variety of biological, chemical, and physical data that are incorporated in the DWR basinwide planning concept. ISB monitoring programs include the Ambient Lake Monitoring Program, Lake TMDL Studies, and other Special Studies/Intensive Surveys as requested and as resources allow. 

Specific monitoring activities 

• Ambient Lakes Monitoring
• Chemical sampling in water or sediment
• Physical measurements (temperature, pH, dissolved oxygen, conductivity)
• Flow/velocity/time-of-travel measurement
• Sediment oxygen demand and nutrient flux
• Channel morphology and lake bathymetry measurement
• Remote sampling

Standard Operating Procedures

Physical and Chemical Monitoring SOP 
Lakes Monitoring Quality Assurance Project Plan