Monitoring Water Quality of Inland Lakes, Great Lakes Network, 2011: Data Summary Report (Natural Resource Data Series NPS/GLKN/NRDS?2012/363)

The Great Lakes Inventory and Monitoring Network monitored water quality of inland lakes at six national park units in 2011: Voyageurs National Park (VOYA), Apostle Islands National Lakeshore (APIS), Isle Royale National Park (ISRO), Pictured Rocks National Lakeshore (PIRO), Indiana Dunes National Lakeshore (INDU), and Sleeping Bear Dunes National Lakeshore (SLBE). The primary objective of this monitoring program is to monitor water quality in order to describe the current status and to detect trends of common limnological parameters within sampled lakes. This report provides brief updates on the water quality monitoring program for inland lakes, including results from the 2011 field season and graphs of select parameters over time since monitoring began.