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Lake Management



  • Weeds clogging the water so you can't swim or boat?

  • Invasive aquatic plants in your lake?

  • Algae turned the water green, produced scum, or producing harmful toxins?

  • Water quality bad and your lake look unappealing?



  • Manage nuisance and invasive aquatic plants by effectively using aquatic products that will control those plants, yet be safe for you and the environment

  • Manage algae growth when it occurs with aquatic products and stop toxic algae in its tracks

  • Improve the water quality in your lake by biding up nutrients before they cause problems

Algae and weeds in Lake
Pondweed/Algae Treatment

1. Assess

2. Implement

Clean Lake

3. Enjoy

Our Process

Every lake is different, we work with you to assess the problems impacting your lake to select a proper management strategy. We will then implement the management plan and apply aquatic products to control the problems in a timely manner. All that is left for you to do is enjoy your lake!

Qualified Lake Managers


  • We work to be a steward of your lake!

  • Over 30 years managing lakes of all sizes in Michigan, 10's - 1,000's of acres

  • Crews are professionals, certified and trained

  • Proper equipment for the job

  • Use of the best aquatic technologies available

  • We handle all the required permits and paperwork

SePRO Pro-Certified Stewards of Water Logo

Case Study - Gladwin, MI


     This project was with a lake approximately 180 acres in Gladwin, MI. This lake supports a diverse aquatic plant community containing submerged species and emergent species. Exotic plant species in this lake include Eurasian Watermilfoil.

     In prior years, the invasion of Eurasian watermilfoil had reduced the riparian and lake visitors' ability to recreate. Eurasian watermilfoil forms a dense mat of the lake's surface which reduces the availability of sunlight and other nutrients that are necessary for desirable native plant communities to exist. Populations of this invasive plant spread rapidly and are harmful to the lake's ecology if control methods are not established. 

Whole-Lake Treatment

     The objective was to control the encroaching population of Eurasian watermilfoil while having little to no impact on the indigenous plant community. To meet the objective, a whole-lake treatment utilizing low doses of Sonar* A.S. was applied in early May, and a "bump up" application 3-4 weeks after to bring the product concentration back up. FasTEST samples of the product concentration from 4 locations were collected 2 DAT, 14 DAT, 30 DAT, 60 DAT, and 90 DAT.

Eurasain Milfoil in hand
Sonar Lake Concentrations

Summary & Benefits

     The overall results of the Sonar application were successful. Low doses were maintained for an extended period of time resulting in control of Eurasian watermilfoil by the end of June, allowing residents and visitors a great 4th of July weekend!

*Sonar and FasTEST are trademarks of SePRO Corporation

Want to learn more about how we can manage your Lake?

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