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® Water bodies that are XX (5, 10, 25, 50??) acres or larger in surface area. <br />® Other water bodies agreed to by the WMO and the affected cities. <br />Table 1 illustrates the implications of WMO management of water bodies and the respective <br />roles of the WMO and the cities in water quality tasks. <br />The following paragraphs describe those water bodies that may meet the criteria to be WMO- <br />managed resources, and lists their classifications. <br />Lak® ~-asso <br />Lake Owasso is a major regional recreational resource. The lake is used for fishing, boating, <br />and swimming. There is a county park and public access on the lake as well. Based on 1997 <br />water quality data, its existing classification would be Category I. Each of the water quality <br />parameters and the Trophic State Index value fall within the range expected for category I <br />water bodies. This classification indicates that Lake Owasso supports direct contact <br />recreational activities. Summer average water quality parameters (May-Sept., 1997) were as <br />follows: Secchi disk = 2.5 meters; Total phosphorus = 34.8 ug/L; Chlorophyll = 13.3 ug/L; <br />TSI= 51.9. These values indicate eutrophic (high nutrient) conditions during 1997. <br />Lake abasso <br />Lake Wabasso is an important recreational resource for the area. The lake is used for fishing, <br />boating, and swimming and has parkland and a public access. Based on 1997 water quality <br />data, this lake's existing classification would be Category I. Each of the water quality <br />parameters measured fell within the range expected for category I lakes. This classification <br />indicates that by Lake Wabasso supports direct contact recreational activities. Summer <br />average water quality parameters (May-Sept., 1997) were as follows: Secchi disk depth = 3.8 <br />meters; total phosphorus = 25.9 ug/L; chlorophyll = 5.0 ug/L; and TSI= 45.5. These values <br />are consistent with a mesotrophic (moderate nutrient level) system during 1997. <br />Brasil Lake <br />Snail Lake is a recreational resource that is used for fishing, boating, and swimming. There <br />is a public access to the lake as well as a county park. Based on 1997 water quality data, <br />Snail Lake's existing classification would be Category I. Each of the water quality <br />Grass_lake_class_system.doc Page 5 09/27/99 <br />