2025 Wetland Performance Report

Wright State University Lake Campus Biology Professor Dr. Stephen Jacquemin gives an update on 2025 wetland performance in the Grand

Management of a restored wetland: challenges and lessons associated with the nutrient reduction potential of Beaver Creek Wetland in Grand Lake St. Marys Watershed

Wright State University Biology Professor Dr. Stephen Jacquemin and Mercer County Agriculture and Natural Resources Director Theresa Dirksen co-authored a

Grand Lake Wetlands Report Feb. 2025

Wright State University-Lake Campus Biology Professor Dr. Stephen Jacquemin provided an update of Grand Lake wetlands performace at the February

2024 Ohio Farm Bureau Water Quality Report

The Ohio Farm Bureau recently released its 2024 Water Quality Status Report. The report highlights progress being made in the

Wetlands Project Map

Download the wetlands project map updated April 2024 here

GLSM Adaptive Management Plan (2023 Update)

The Lake Restoration Commission recently released its updated Adaptive Management Plan for Grand Lake St. Marys. The document details what has been accomplished from 2017 to 2022 and describes plans for the future.

Microcystin Levels

View current and historical microcystin levels in Grand Lake St. Marys here.

Grand Lake St. Marys Water Quality: 2021 in Review

Video from the November 2021 LIA member meeting, plus a Grand Lake St. Marys water quality PowerPoint presentation shared by

The Fishes of Grand Lake St. Marys

Grand Lake St. Marys water quality update & The Fishes of Grand Lake St. Marys presented by Wright State University-Lake Campus' Dr. Stephen Jacquemin at the April 2021 Lake Improvement Association membership meeting.

Grand Lake St. Marys Water Quality Update – September 2020

Water quality update by Dr. Stephen Jacquemin, Associate Professor of Biology, Wright State University-Lake Campus.