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2000
Keech Pond
Oligotrophic > 4 meters (> 13.1 feet), excellent water clarity
Mesotrophic 2-4 meters (6.6-13.1 feet), moderate water clarity
Eutrophic < 2 meters (< 6.6 feet), low water clarity
Refer to URI Watershed Watch's Fact Sheet Measuring Water Clarity for more information.
Oligotrophic < 2.6 ppb, low algae levels
Mesotrophic 2.6-7.2 ppb, moderate algae levels
Eutrophic > 7.2 ppb, elevated algae levels; indicates an algae bloom
Hypereutrophic > 35 ppb, extremely high algae levels; "pea soup" conditions
Refer to URI Watershed Watch's Fact Sheet Algae in Aquatic Ecosystems for more information.
Refer to URI Watershed Watch's Fact Sheet Dissolved Oxygen and Temperature for more information.