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 Country Limited outside of Janesville. The poor condition of the Fox Lake–Janesville stretch limited trains to . The initial route was Chicago–Glenview–Janesville; on June 15, 2000 an additional stop was added at Zenda, Wisconsin to serve Lake Geneva, Wisconsin, a popular resort community. The train consisted of one coach car, one engine, and one non-powered control unit. Lake Country Limited The Lake Country Limited was a short-lived Amtrak route which connected Chicago, Illinois, with Janesville, Wisconsin. The route was part of Amtrak's Network Growth Strategy, which envisioned an expanded role for mail and express business. The "Lake Country Limited" would have exchanged