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skier hit shore, and (iii) 198'7 - PWC passed 10' from skier towed by wet bike and caught tow rope, dragging skier under. Accidents are only officially �eported if they cause personal injury or >$500 damage, thus swamps and capsizes are not generally reported. Owasso's accident rate is typical for the county. Statewide in 1996, there were 129 non-fatal and 10-12 fatal accidents; most fatalities are due to lack of a PFD on someone falling off a boat (KE). Non- fatal collisions tend to be boat-boat or boat-fixed object. Collisions are usually due to inattention, not congestion. Another dangerous time is operation in "transition mode" from low speed to planing (KE). Overall in MN, accidents are down from highs in 1957 and 1969; 1996 was the lowest. 6. Discuss the locations, type, and level of water surface use of other public water bodies in the county or metro area. Is trailer parking at (or near) all these locations based on the same use/acre formula? How many seasonal slaloms and jumps are located in other lakes? (also see 4). The DNR guideline of 20A/boat entering via public access is not based on safety, but on a"social carrying capacity" defined in the 1970's. This capacity assumes 1 boat/10A, i.e., 50% of use is via public access. Trailer parking is used to control public use. (KE). Owasso is 349 acres; there are 10 trailer spots at the launch and at least 10 at the county log (NQ). However, tickets to trailers parked outside the marked trailer parking area in the county lot on N. Owasso might not hold up in court since the entire lot is public (DB). These county lakes have seasonal slalom courses: 1 each on Little Goose, Gervais, Island, Turtle, Owasso; 2 on Rochenau. Bald Eagle and White Bear have slaloms for several weeks, Keller has a temporary course. 7. What user conflicts do you perceive on Owasso? How can this best be studied? The primary conflicts reported to DB are between property owners and public, e.g., violations of laws and property rights, disagreement about the no-wake ordinance. Some reports are of boaters getting too close to skiers. 8. What type of water surface activities ar type of user generate the most complaints? Enforceable citations? Is there a record of resolved and unresolved complaints about both general and permitted use? Do complaints affect enforcement or permitting? DB had no information on offenders re their type of activity/use or means of entry (public/private). Property owners vs. public-type complaints are most common (DB). Common early-season violations include improper registration and lack of PFD's; lakeshore boaters are often negligent (KE). Other citations include unsafe skiing, careless operation, BUI, lack of navigation lights and no-wake violations (DB). Warnings are effective for changing behavior and they may shift offenders off the lake. Repeat violators get cited. Water patrol officers are scheduled to patrol specific lakes so they get to know a lake, its users and past offenders. Violation patterns can be established from the complaint record, whether or not they are enforceable (DB). Also see 20. Obvious violations of no-wake distances are most often upheld in court. Radar is enor- prone on lakes and makes citations for speeding easy to challenge. See 10. DB does not deal with complaints about seasonal installations and only makes a determination of safety. Preferences of others have no bearing on his approval. The permit application form requests signatures from the city also; thus far, cities have signed all applications. 9. How and how often are noise and speed measured? Who are the offenders (boat type, activity)? Usually boats receiving noise complaints don't exceed the dB limit unless they are grossly in violation. Two new boat types, "over transom exhaust California drag" and the "muscle/Miami Vice-type through transom exhaust single or triple twin" may exceed limits and are most frequently found on Minnetonka or the rivers. PWC's comprise 1/3 of all new US boat sales and they meet state noise limits (for all boats). Problem behaviors such as sequential users, concentrated use, and wake jumping 2