Lake Onega water per year, of which 46% are industrial and household water, 25% is stormwater runoff and 16% is melioration-related drainage. This drainage contains of phosphorus and of nitrogen; respectively of these elements are removed through the River Svir whereas the rest accumulates in the lake. Ships and motor boats (about 8,000 units) bring oil pollution at the level of about per navigation year, as well as phenols (), lead () and oxides of sulfur, nitrogen, and carbon. The lake basin is a major source of granite, marble and black schist in Russia which have been exploited in the area since
Lake Nona Golf & Country Club Tseng. The club was founded by John "Sunshine" Sunley, a British property developer. Lake Nona Golf & Country Club Lake Nona Golf & Country Club is a private residential golf club community in southeast Orlando, Florida. The community features an 18-hole championship golf course designed by Tom Fazio. Set amidst freshwater lakes and oak, pine and cypress trees, Lake Nona Golf & Country Club offers a range of residences, including custom-built estate homes. Lake Nona Golf & Country Club's 40,000-square-foot clubhouse includes main dining rooms and a lounge, extensive wine cellar, grill room, men’s and ladies’ locker rooms and a