On this page are links to a number of reports and newsletters that provide additional background information about Spring Lake and various management activities.
Click here for a 2018 report from GVSU that assessed phosphorus and nitrogen inputs from the Spring Lake watershed, along with microcystin levels in the lake.
Click here for a 2017 report from GVSU that provides an update on the Spring Lake alum treatment.
Click here for the lake board's final alum treatment report to the Department of Natural Resources and Environment (now called the Department of Environmental Quality, or DEQ).
Click here for the final alum treatment report from Grand Valley State University.