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memo 13 of 14 North Oaks Pleasant Lake Entire lake electric only North Oaks Gilfillan Lake Entire lake electric only North St. Paul Casey Lake Entire lake no motors Roseville All lakes 150 300 Roseville /Shoreview Lake Owasso 150 Roseville /Shoreview Lake Josephine 150 Shoreview All lakes 150 or WL > 947.0' Shoreview Island Lake 150 or WL > 947.0' St. Paul All lakes in parks Entire Lake no motors Vadnais Heights Lake Vadnais Entire Lake no motors Vadnais Heights Sucker Lake Entire Lake no motors White Bear Lake White Bear Lake 200 -300 100 7. Who has the ability to enforce a no -wake zone and what are the mechanisms of enforcing a no -wake zone? As the City of Roseville's ordinance states, "F. Enforcement: Primary enforcement of this Chapter shall be the responsibility of the Ramsey County Sheriffs Department. This, however, shall not preclude enforcement by other licensed peace officers. (Ord. 1207, 8 -10- 1998) ". Again, this is another component of the evaluation that will be conducted if and when the Implementation Activity is conducted. Since there is already a no -wake zone in effect and since many environmental problems associated with boat activity could be resolved with better enforcement of existing ordinances this will be one of the factors taken into consideration. In addition, promoting awareness among boaters will also be one of the factors taken into consideration (as a mechanism of enforcement) as the need to extend the no -wake zone is considered. 8. The establishment of a no -wake zone will have a significant impact on the public's ability to recreate on the lake as they have done in the past. An extension of the existing no -wake zone will have an impact on some of the public's ability to recreate on Lake Owasso. In a survey conducted by the GLWMO is March —April of 2007 (of which there were 188 respondents) approximately 70% or greater of respondents use Lake Owasso for swimming or viewing nature while less than 40% of respondents use the lake for boating types of activities. 25% of all respondents used the lake 120 times or more in the last 12 months (of when the survey was conducted) while another 25% used the lake at lease 20 times but less than 60 times (the next frequency in the survey). This is one of the trade -offs that will be taken into consideration if and when this Implementation Activity is conducted in the future. F. Recommendation Given the contribution of internal phosphorus load to the Lake Owasso system, the anecdotal evidence that motorboat activity is contributing to the resuspension of sediments in the shallow portions of the lake, and the research supporting the impact motor craft have on water quality in lake systems it is our technical recommendation that this Implementation Activity remain in the GLWMO 2011 Watershed Management Plan. However, it is recommended that the Implementation Item be re- worded as suggested by one of the individuals who submitted comments on this issue. It is recommended that the Implementation Activity be re- worded as follows: Implementation Activity 1.9.f (page 114) — "To address internal loading (in Lake Owasso) work with member communities to test the impacts of extending a no boating area or no -wake zone to certain Emmons & Olivier Resources, Inc. 651 Hale Ave N, Oakdale, MN 55128 p: 651.770.8448 f: 651.770.2552 www.eorinc.com