Integrated Report

The 305(b) Integrated Report and the 303(d) List of Impaired Waterbodies

Section 303(d) of the Clean Water Act requires states to:

  1. Identify all waters of the state which are impaired--i.e. they contain pollutants which adversely affect the water quality (and associated designated uses) of the water.
  2. Prioritize all impaired waterbodies for development of TMDLs. Prioritization is to take into consideration public health and environmental risk.
  3. Establish and adopt TMDLs for all impaired waterbodies or for waterbodies which would be impaired if a TMDL was not established.

If a state does not comply with Section 303(d), the Environmental Protection Agency is required to perform these activities.

Every two years, the state must evaluate it's water quality data, and submit an updated impaired waterbody list to the Environmental Protection Agency (EPA) for approval. This list is generated from the Statewide Water Quality Assessment (also known as the 305(b) Report) which also must be submitted every two years.

Click here to view these reports