Here's a checklist to help stop the introduction of aquatic invasive species to Lac Mahon. Always take these precautions well away from the lake (ideally, on leaving another waterbody).

• • Drain water from all parts of a boat (and motor).

  • Remove visible mud, plants, etc.

  • Thoroughly clean - remove organisms that can't be seen by 

    • rinsing with hot water, or

    • pressure washing, or

    • drying the boat for 5 days in the sun.

Pressure washing can be done at home, or there are pressure-washing stations in the Gatineau Valley, the closest is at Lac Sinclair, about 25 minutes away. See attachments.