PHASE IV GIS-BASED SEDIMENT QUALITY DATABASE FOR THE ST. LOUIS RIVER AREA OF CONCERN— WISCONSIN FOCUS Supplement to the Phase II/III Help Sections for Database Users

The Phase IV geographic information system (GIS)-based sediment quality database for the St. Louis River Area of Concern (AOC)—Wisconsin focus represents a collaborative project between the St. Louis River Citizens Action Committee (CAC), Wisconsin Department of Natural Resources (WDNR), Minnesota Pollution Control Agency (MPCA), and Exa Data & Mapping Services, Inc. in conjunction with their subconsultants from Premier Environmental Services, Inc. and Searay Environmental. For this phase of the database, additional sediment quality data from the Wisconsin side of the AOC were added to the database based on the procedures documented in the Phase III Quality Assurance Project Plan (QAPP; Crane 2005a), as well as in the Phase IV project team roles and responsibilities report (Crane 2005b). These data consisted of mostly benthic invertebrate community data from throughout the Wisconsin side of the St. Louis River AOC, as well as some sediment chemistry data from Hog Island Inlet and Newton Creek in Superior, WI. Sediment remediation of the Hog Island Inlet/Newton Creek system was completed during the fall of 2005 through the use of Great Lakes Legacy Act funds. The post-remediation sediment chemistry data from this site were not available in time to add to the Phase IV database.