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Water Quality

Microcystin Levels

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

Read more August 3, 2022 at 9:56 am

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

Read more November 8, 2021 at 2:34 pm

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.

Read more April 13, 2021 at 6:41 am

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.

Read more September 11, 2020 at 3:14 pm

Summary of GLSM Wetlands Monitoring 2019

Wright State University's Dr. Stephen Jacquemin and Ag Solutions' Theresa Dirksen gave an update on wetlands monitoring at the February 2020 Lake Improvement Association member meeting.

Read more February 12, 2020 at 3:18 pm

Changes in Water Quality in GLSM Watershed Following Manure Application Regulations

These documents offer a summary and full report of the water quality changes in the Grand Lake St. Marys watershed following manure application regulations.

Read more July 11, 2017 at 12:04 pm

Adaptive Management Plan 2017

This file contains the updated Adaptive Management Plan created for Grand Lake St. Marys in 2017.

Read more June 5, 2017 at 4:07 pm

Prairie Creek Treatment Train Schematic Design Narrative

An overview of the treatment train at Prairie Creek near Grand Lake St. Marys.  Featuring a project description, maps, photos,

Read more November 2, 2016 at 10:59 am

Battelle Grand Lake St. Marys Assessment – Airy Gator Performance Report

The Battelle Grand Lake St. Marys Assessment – Airy Gator Performance Report details Battelle’s findings for Grand Lake St. Marys

Read more November 2, 2016 at 10:47 am

FFT ECSIA Force Algae Control Sample Trials

FFT ECSIA Force Algae Control Sample Trials Microcystin and other trends

Read more November 2, 2016 at 10:44 am
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Our Mission

The purpose of the Lake Improvement Association is to make improvements to GLSM and its facilities and promote a clean and healthy lake for the general public’s use.

Meetings

Attend a Meeting at:

The Celina Moose Lodge #1473
First Saturday of each month at 10:00 A.M.

Contact Us

Lake Improvement Association

P.O. Box 118 Montezuma, Ohio 45866

info@lakeimprovement.com

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