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determine the quality of the vegetative community and aggressive <br />species infestations to develop a ranking (exceptional, high, medium, <br />low) for each pond's ecological integrity. <br />Based on the results of the Lake and Watershed Assessment, certain <br />ponds that have been labeled as critical areas for removal of phosphorus <br />prior to reaching the lakes will have additional data collected to <br />determine their phosphorus removal efficiency. This information will <br />potentially include the pond surface area at the normal water level; inlet <br />and outlet locations and sizes; locations of skimmer structures; and pond <br />storage. <br />The information collected for the ponds will be used to determine <br />appropriate measures for aesthetic and wildlife habitat improvements to <br />increase the enjoyment of these natural features for park patrons. The <br />information collected for the ponds within the parks, identified as critical <br />for phosphorus removal to protect downstream fakes, will be used to <br />establish an appropriate improvement and management plans for <br />improving their phosphorus removal efficiency while enhancing their <br />aesthetic and wildlife habitat values. <br />The pond assessment and resulting recommendations within the parks <br />can be utilized as a guide to develop a similar program for the remaining <br />ponds in the city. An example of a potential resulting project or projects <br />for similar settings in the fully developed City of New Hope and <br />predominately developed City of Woodbury is presented in the project <br />sheet labeled Quebec Pond Improvements and Dorchester Pond <br />Restoration included with this proposal. <br />Inventory of Langton and Bennett Lakes <br />For L�ngton and Bennett lakes, there are three options. The first is a <br />one-time field survey of each fake to characterize the aquatic plant <br />community (emergent and submergent) and-for Langton Lake-to <br />compile a bathymetric (lake depth) profile of the lake (Bennett lake <br />already has one). The cost for this field alternative is estimated at 5600. <br />A second alternative includes Alternative 1 above, plus a limited in-lake <br />sampling program (sampling carried out three times during the summer <br />in late May, early July and late August in the deepest part of the lake) for <br />L�ngton Lake. (In-lake data is available for Bennett L�ke.� This data <br />would be used to characterize the lake's condition for recreational and <br />aesthetic purposes, and to provide a basis for matching the <br />watershed/lake model that would be developed in Task 5 to actual <br />conditions. The additional cost for this task is S 1,260 (total cost for both <br />alternatives is S 1,860). <br />The third alternative includes sediment sampling to estimate the <br />significance of pollutant recycling from lake sediments within the lake <br />relative to the watershed pollutant loads that would be estimated by <br />modeling. The additional cost to complete the sampling, lab analysis, <br />and data interpretation would be 5 1000 per lake. <br />For each natural community field surveyed, notes and observations on <br />wildlife habitat and sightings will also be recorded for inclusion in the <br />�`� City of Rosevi//e Natura/ Resource Management 5 <br />�Il Bonestroo, Rosene, Anderlik and Associates, /nc <br />