II. Chemical

• Dissolved Oxygen (DO), pH, temperature, conductivity: standard tests.
• Blackwater rivers: DO always lower and pH more acidic due to
• the tannic acid from oak leaves that gives them their tea color.
• Nitrates, phosphorus: very important in Florida from agricultural runoff;
• see ​ Basin Management Action Plans (BMAPs)
• Must take a one-day course and be certified to do chemical testing.
• Testing kits or probes do cost money, chemicals also cost.
• Georgia Adopt-A-Stream has a Macroinvertebrate and Chemical Stream Monitoring Manual:

https://adoptastream.georgia.gov/documents/macroinvertebrate-and-chemical-stream-monitoring-manual