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Ernst Associates ME MO 12 July 1982 ,':Age 2 Their major problem in their study relating to Lake Harriet was that ttiey could not pond this material and allow it to perculate through the soil system before it went into Lake Harriet. It would drain directly into the open water system. Dr. Sapperal then referred me to a gentleman by the name of Dr. Rouse Farnham / 373-1447 or 376-8140 laboratory at the U of MN Soils Dept. / 373-1062. Dr. Farnham felt that there are ways to improve the quality of water by sedimentation systems and allowing the water to perculate down into the soil. There have been studies done along Hwy. 55 by rugena Hickock's office using calcite material to collect phosphorus particles. This has been very successful and can be done at low cost. The park reserve district has experimented with peat as a filtering system to improve water quality. Dr Farnham referred me to Eugene Hickock's office to get more data relat- ing to these various studies. Eugene Hickock's Office / contact person was Norm Wenck I met with Mr. Wenck and showed him our scheme for the Baldur Park peninsula. or your interest, Eugene Hickock's office are the people who review all watershed permits relating to any development in the Minnehaha Watershed District, Lake Minnetonka WatershL.i District. In reviewing the plan, it was felt that there is no problem with the type of development that we are proposing and means of improving the water quality. This does not mean that they have approved the plan but from their general review felt there are really no problems with the hard cover and water quality for this particular site. I have in my files a wetlands preservation guideline that was prepared by this office in reference to Rice Creek Watershed District. This par- ticula� document was prepared and is a very stringent document tnat outlines the amount of uevelopment that can take place and the amount of nutrient loading (pounds per acre per year) that are allowed. Nc felt that this same criteria could be used for ours acid in his calculations it was found that we are way under the requirement: that were set out in the Rice Creek District on this development. In talking to all of these various people .n reference Lo our situation it was felt that there are iio problems in setting up systems that will purify and clean the water on otiv particular project before it enters back into Lake Minnetonka. Before any one of these parties could qive any definite approval they would have to go into some depth study to preGare dor.uments that would back their opinion. There is no question in my mind that it would not be difficult to set up systems on your project that can release the water back into Lake Minnetonka at the same quality as it presently is or even improving the water quality in the ponding systems that wr have proposed.