Water Quality Assessment Reports to Congress

Section 305(b) of the Federal Clean Water Act requires that states report an assessment of their water quality to Congress; these reports are referred to as "305b Reports" and provide a summary of water programs and resource condition on a statewide basis.

Fall Panarama in Wisconsin.

The state's 2006 Water Quality Report to Congress is now available in electronic format. Previous reports were published in 2004, 2002, 2000, 1996, 1994, 1992, 1990, 1988, 1987 and earlier. DNR's earlier documents are available for review at the GEF II building, 101 S Webster St, Madison. Later versions are available electronically.