||Level of Concern for Aquatic Life
||Impacts on Aquatic Life
|Below EPA risk-based guidelines and state water quality standards for protection of aquatic life.
||Below levels that pose problems for aquatic life.
|Above EPA risk-based guidelines or state water quality standards for chronic exposure.
||Levels that might impact the health, growth or reproductive activity of aquatic life if exposed for an extended period of time.
|Above EPA risk-based guidelines or state water quality standards for acute exposure or failed a toxicity test.
||Elevated potential for mortality among aquatic life