Water Quality
- Dissolved Oxygen – How much oxygen fish need to survive
- Temperature – Temperature suitable for our rivers’ fish
- Suspended Solids – Particles in the water that can damage aquatic life
- Phosphorus – A nutrient that can cause excessive aquatic plant growth
- Nitrogen – A nutrient that can cause excessive aquatic plant growth
- Floating Biomass – Aquatic plants at the surface or reaching the surface
Streamflow
- Streamflow Alteration – How much our rivers deviate from natural flows
- Groundwater Level – The depth of the water table
- Summer Streamflow – A composite of minimum river flows
Scenery
- Visual Quality – Scenic quality of select views
- Cultural Importance – Historic and cultural qualities, local landmarks, and interpretation
Habitat
- Impervious Cover – Percent of land covered by impervious material
- Aquatic Connectivity – Disruption by culverts, bridges, and dams
- Ecological Integrity – Disruption of habitat
Recreation
- Passability – Dams per river mile and ease of portage around dams
- Access – Public access points per river mile
- Trails – Miles of trail along riverfront
- Bacteria – Presence of fecal bacteria contamination
- Fish Edibility – Whether people can safely eat the fish
Other
- Overall – Combines all the indicator grades for each river segment