Water Quality Guide to the Assessment of the Basins Use this page as a general guide to the eight basin summaries that follow. The text in this area of each page describes the basin including tributaries, counties and major cities. This area of each page lists the number of large facilities permitted to discharge to surface waters within the basin.
Electrical generation requires water to cool the plants.
The basin is indicated by blue lines, which represent the streams and rivers in the basin. Basin Quality Rating Aquatic Life Provides suitable water quality for protection and propagation of desirable fish, shellfish and other aquatic organisms. Does not provide suitable water quality for protection and propagation of desirable fish, shellfish and other aquatic organisms. Recreational Uses - Swimming People can swim in water without risk of adverse health effects, such as catching waterborne diseases from raw sewage contamination. People swimming in water risk adverse health effects, such as catching waterborne diseases from raw sewage contamination.