Chanhassen officials reported last week that 95 percent of the boats checked for zebra mussels this summer at three city lakes were following state rules.
The city inaugurated inspections after citizens pressed them to do more to lessen the chances that invasive mussels from Lake Minnetonka and elsewhere might contaminate Lake Ann, Lake Susan and Lotus Lake.
Todd Hoffman, Chanhassen's park and recreation director, said inspectors checked 2,076 boats at the three lakes between May 12 and Labor Day. "We stopped about 100 boats from entering that had some sort of state violation," he said.
State rules require boaters to drain water and remove weeds so that aquatic invasives don't spread from lake to lake on boats, trailers, bilge water or bait buckets.
The cost of the program was about $63,000, with funding provided by several groups. Hoffman said the City Council will determine whether the inspection program will continue in 2013.