Nutrient Numeric Endpoints (NNEs)
need a page on this..from SWQRCB :
"The State Water Board is initiating the process to develop a nutrient policy for inland surface waters, excluding inland bays and estuaries in California. The nutrient policy could include objectives and control strategies to help improve water quality in aquatic habitats by providing the benchmarks that describe conditions necessary to protect beneficial uses. Creating a nutrient policy for the state will assist in supporting the Water Boards Mission to preserve, enhance and restore the quality of California's water resources, and ensure their proper allocation and efficient use for the benefit of present and future generations.
The State Water Board intends to develop narrative nutrient objectives, with numeric guidance to translate the narrative objectives. This numeric guidance, could include the Nutrient Numeric Endpoint (NNE) framework which establishes numeric endpoints based on the response of a water body to nutrient overenrichment (e.g. algal biomass, dissolved oxygen, etc.)."