Biologists from the Grand River Dam Authority visit 14 different locations in Grand Lake to collect water samples to test the water quality.
While some tests can be done inside the boat others are performed in a water quality laboratory.
While blue-green algae (BGA) was a wide spread problem in Grand Lake last year, GRDA officials say they have not detected any BGA this year while conducting routine tests.
"The primary reason we are going out and checking these spots are for water quality, the BGA is just an additional parameter to everything else we are checking," says Sam Ziara, a biologist with the GRDA Ecosystems Department. "I don't want to jump to conclusions on anything."
To gather accurate data the GRDA uses GPS to mark where the samples are being taken each time.