“I know I’ve seen some stuff floating,” township resident Barb Lamancusa said. “It is there one day and the next day it is gone.”
An avid boater, Lamancusa said the algae doesn’t bother her too much because she typically enjoys water recreation in other areas.
“We actually get on the boat and leave the bayou,” she said. “We don’t do a lot of swimming right here.”
Eight years ago, the algae got so bad that something had to be done.
In June 2005, the Michigan Department of Environmental Quality approved the Spring Lake Lake Board’s plan to treat Spring Lake with aluminum sulfate, also known as alum. The lake was treated from mid-October to mid-November of that year.
“We were pretty happy with the results,” Lake Board member John Nash said.
The alum treatment was done to reduce phosphorus levels and the frequency and duration of algal blooms in the lake.
The alum was poured along the contour of the lake where depth was about 15 feet. The total cost of the 2005 alum treatment project came in at $1 million.
Now the algae appears to be making a comeback. Any efforts to deal with it, however, would have to be discussed by the Spring Lake Lake Board.
“We did $45,000 worth of research before we made that decision (to treat in 2005),” Nash said.
To read more of this story, see Saturday’s print or e-edition of the Grand Haven Tribune.