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Environment Committee, Minutes, 10/13/92, P. 3 <br />The committee reviewed LMCD's early "Save the Lake" <br />campaign — "What you take to the lake, take it bade. <br />Recycling is also encouraged at this time. The committee <br />asked LMCD staff to draft a recommendation. <br />C. WATER QUALITY GOAL. Osgooc commented that baseline data <br />as identified by the Management Plan is not sufficient <br />for lake management purposes. He also pointed out that <br />the 50 ug/1 (micrograms per liter) is not useful for Lake <br />Minnetonka as a whole. That measure would be good for <br />Stubbs Bay, for example, but a poor for Cryst >1 Bay. <br />Establishing benchmarks will take several years based on <br />comprehensive data collection. There is not enough of <br />the right data to determine the lake's present status <br />according to that he and Dindorf have researched. <br />Phosphorus, for example, only measures one water <br />condition distinguishir,._; clear from green water. Other <br />criteria must be included, such as aquatic plants, exotic <br />species, metals in fish, status of the fish population. <br />In another sen^e, whose goal is to be met? Some studies <br />make presumptions as to what is the problem. Since the <br />Management Plan recognizes many other factors of the <br />lakes environment, its quality goals should be <br />comprehensive. <br />It may be appropriate to zone the lake for establishing <br />quality goals, Osgood continued. Uses must also be taken <br />into consideration in establishing water quality goals. <br />Osgood and Dindorf will continue their water quality <br />program development and keep thu committee advised. <br />D. INDEPENDEN. EVALUATION OF EWM PROGRAM. Thi^^ report will <br />be presented in November per the contract agreement. <br />E. REDUCE OR TIP. JP PHOSPHORUS IN SEDIMENTS, MCWD AS LEAD <br />AGENCY. The application of iron filings in Peavy Lake <br />off Brown's Day was done without gathering pre-treatment <br />vegetation and other needed data. Barten believes iron <br />filings technically cannot work for this purpose. Tying <br />up phosphorus is an expensive process. The MCWD has a <br />five to ten year capital improvement prog*-am as pari, of <br />the District's long range plan under which this ef.-^ort <br />may be Included, Erdmann noted. <br />F. Dindorf reported Orono has been mapped for wetlands. <br />ADJOURNMENT. The meeting was adjourned at 9:55 am. <br />RiifWec.OLc, <br />Euge <br />ExecutTlv*? Director <br />'e c t f u lly~^ y- ' <br />t^R. Strommen