Courtesy Boat Inspections

Coastal Rivers administers a Courtesy Boat Inspections (CBI) program as a front-line defense against the spread of invasive aquatic plants. The CBI program is all about education and awareness and is just one

During the summer months Coastal Rivers works with many volunteers who have stepped up to be on the CBI team but we have many shifts to fill and always need more help. We try to have the hours of 6 a.m. to 2 p.m. covered with CBI volunteers on Saturdays and Sundays through Labor Day. Training is available at the office and you will get an informative CBI handbook and a free Courtesy Boat Inspector tee shirt.

Volunteers fill 2-hour shifts at the Pemaquid Pond boat launch in Nobleboro and at the Biscay Beach boat launch in Damariscotta on weekends during July and August. CBI volunteers check incoming and outgoing boats for plant fragments and educate boaters about the threats posed by invasive aquatic plants.

To learn more about the CBI program or for training contact Carolyn at 563-1391 ext 320 or email:

As boaters launch and remove their boats from the pond, CBI volunteers:

  • Discuss with boaters how invasive aquatic plants spread
  • Show boaters how to inspect boats and equipment for plant fragments
  • Urge boaters to inspect before and after every launch
  • Distribute information about invasive plants
  • Share materials about Maine law regarding the transport of plant fragments.  (Under Maine law, it is illegal to transport any aquatic plant on the outside of a vehicle.)
  • Share information about Coastal Rivers lead tackle exchange program

Interested in Helping?

If you would like to volunteer to spend two hours a weekend at a lovely spot, meet nice folks, and help keep invasive plants out of the ponds, sign up to be a CBI volunteer this season by calling Coastal Rivers at 563-1393 or email Carolyn.

All CBI volunteers must complete a brief training session annually.  Training is free and takes only about 2 hours.

This video from Lakes Environmental Association shows the CBI program in action:

a volunteer conducting a courtesy boat inspection looks for invasive aquatic plants

a volunteer conducts a courtesy boat inspection

The threat is real.

In 2009, hydrilla was discovered in nearby Damariscotta Lake. Hydrilla is the most aggressive invasive aquatic plant in North America!

Hydrilla, one of the most invasive of invasive aquatic plants

Hydrilla can propagate in five ways and is very difficult if not impossible to eradicate once it has established itself in a pond.

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3 Round Top Ln • PO Box 333 • Damariscotta, Maine 04543
207-563-1393 •
© 2020 Coastal Rivers Conservation Trust. All Rights Reserved.