People using the Boulder Reservoir will have to comply with new rules to prevent the spread of the zebra mussel, an invasive aquatic species. The Boulder Parks and Recreation Department is now requiring that all watercraft be launched only from the south shore of the reservoir. The city has also suspended the sale of one-day power boating permits, until effective measures to prevent the spread of aquatic species can be developed.

Zebra mussels were discovered at the Pueblo Reservoir earlier this year. They are considered a very aggressive, invasive species, capable of clogging water pipes, disrupting the natural ecosystem and damaging boats. Zebra mussels can attach themselves to boats and other water vessels.

Boulder Parks and Recreation said that proper vessel cleaning policies can no longer be ensured on boats launched from the north shore. Reservoir staff is researching the best methods to keep the mussels out of the Boulder Reservoir.

Among the new rules, permits will be required for all wind-powered watercraft, including wind surfboards and kite boards. The requirement will improve boater education, according to the Boulder Parks and Recreation Department.