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Resolution No. /D99 . . Page 49 � ' b) The Report concluded that: "Storm water, especially " that portion which runs off from urban lands , is expected • to beco�ne an ever more important source of phosphorus in the future. The data collected for this study indicate that some mechanism, probably deposition and utilization in �rarshes , is reducing the phosphorus carried in streams tributary to the lake below levels anticipated from a review of the literature. " "The construction of storm sewers or paved channels would allow much of the stonn water to by-pass marshes, and curtail this benefit presently derived from them. By anticipating problems of localized flooding, development can be restrained in those areas , and storm water can be allowed to meander through" the marshes. " "Marshes provide a diversity in the kinds of open space available within the region. Perhaps more important, they provide a habitat which is uniquely suited for certain • birds and mammals . They can b e utilized to provide stora ge of storm runoff.with minimal disruption to their function as a habitat for wildlife and their apparent ability to reduce the phosphorus input to the lake. " "Marshes and small Iakes in the watershed aggregate nearly as much area as the main body of Lake Minnetonka. Therefore, their potential � for supplying water to the subsurface formati,ons is appreciable. " - " "In order to continue to protect the lake by removing phosphorus , to preserve the unique open space habitat, and to maintain the potential for ground water recharge, preservation of the marshes is desirable. This can be fostered by minimizing the construction of storm sewers and drainage culverts, and by minimizing the deepening and widening of drainage channels . " , � . � • � • , � .