Stream chemistry and stream flow overview, methods, and procedures

The Baltimore Ecosystem Study Stream Flow and Chemistry Overview document contains information regarding to BES stream chemistry. The topics are: Section 1: Sampling Network Section 2: Streamflow Analysis Section 3: Stream Chemistry Summary of Section 1: Sampling Network 1. Longitudinal sites along the Gwynns Falls 2. Small watersheds Summary of Section 2: Streamflow analysis: 2.1. Collection of Flow Data at USGS Stream Gage Stations 1. General Approach to Discharge 2. Open Channel Sites 3. Sites with Primary Devices 4. Flow Data Publication 5. USGS Methodologies and Protocols 2.2. Stream Gage Calibration and Flow Rating QAQC: Weekly Checks by BES Crews 1. Inside and Outside Gage Check 2. Low Flow Rating Check 3. High Flow Rating Check 4. Digital Photos 5. Selected Station Specific Notes 2.3. Preparation of Flow Data for Exploratory Analysis and Load computation Summary of Section 3: Stream Chemistry 1. Field Sampling 2. Blanks and Spikes 3. Chemical Analyses