"It shall be unlawful for any person to operate or be in actual physical control of a vessel upon the waters of this state, except privately owned waters..."; if 
- blood/breath sample is .08 or above at the time of test;
- under the influence of any intoxicating substance rendering the person incapable of safe operation;
- or under the influence of both
The fine is up to $1000 on a first offense. Read the statute below.

If you've been arrested for boating under the influence, call DUI attorney Alan R. Woodland.

http://www.oscn.net/applications/oscn/DeliverDocument.asp?CiteID=437423