Report Outlines Michigan's Lake Water Quality

The Michigan Department of Environmental Quality and the U.S. Geological Survey late last month announced the release of a summary report of ambient water quality characteristics of Michigan's inland lakes with public access.

The "State and Regional Water-Quality Characteristics and Trophic Conditions of Michigan's Inland Lakes, 2001-2005" report was prepared by USGS and Michigan Water Science Center, in cooperation with DEQ.

The report summarizes the results of the first five years of Michigan's Lake Water Quality Assessment monitoring project under a joint funding agreement supported with Clean Michigan Initiative funding. The 10-year LWQA monitoring project, which will be completed in 2011, is a component of the DEQ's surface water monitoring strategy.

During 2001-2005, 433 lake basins from 364 inland lakes with public access were monitored for baseline water quality conditions and trophic status, an indicator of primary biological productivity. Trophic evaluations based on the data collected for these lakes indicate nearly three-quarters are either mesotrophic or oligotrophic, which are typically perceived as very good to high quality lakes, and 22 percent are eutrophic. Only four percent of the lakes were classified as hypereutrophic, which is perceived as lower quality by most lake users. Although the distribution of lakes in Michigan is not uniform, the highest percentage of oligotrophic lakes are in the Northern Lakes and Forests or North Central Hardwoods Omernik Level III Ecoregions located in northern Michigan.

The report is available online at http://pubs.usgs.gov/sir/2008/5188/ or by contacting Lori Fuller at lmfuller@usgs.gov.

Download Center

  • Monitoring and Reporting on Air Emissions for Regulators and the Real World

    When it comes to managing compliance and regulatory issues surrounding air emissions, there are no easy jobs. With interviews from practitioners from American Electric Power, Red Cedar Gathering, Trinity Consultants, and Cority, this eBook provides practical advice to advance your air emissions monitoring and reporting programs.

  • What Every EHS Professional Should Know About ESG

    Join experts from Arcadis and Cority on April 27th to learn the most common ESG reporting frameworks and how technology can help you improve reporting efficiency, identify areas for improvement, and create defensible audit trails.

  • Green Quadrant EHS Software 2021

    Read the new report by independent analyst firm, Verdantix, to get an unbiased comparison of the 22 most prominent EHS software vendors in the industry.

  • RFP Template for Waste Management Software

    Learn the essential questions to ask when evaluating waste management software solutions with this free, ready-to-use RFP template

  • 5 Keys to Best-in-Class Chemical Management

    Running a safe chemical program is challenging and complex: from knowing what's on-site to proper handling and disposal - all while navigating regulatory changes. Learn the best ways to mitigate chemical risk, get the most value out of your data, and gain buy-in for a chemical management solution.

Featured Webinar