municipality's area falls within an authority's jurisdiction, and the total value of land in that municipality after applying modifiers is 10 million dollars, 3 million dollars is the value used to calculated the municipality's share of the levy (30% x 10 million). If the total value in the jurisdiction, after adding together all such values for all the participating municipalities, is 20 million dollars, the municipality's share of the levy is 15% (3 million divided by 20 million). In 2013, municipal levies accounted for approximately 48% of all conservation authorities' revenue; self-generated revenue accounted for 40%; provincial funding, including the natural hazards management funding as well as Clean Water Act funding and various other grants for special projects, accounted for 10%; and federal funding, for special projects and Areas of Concern, 2%. Role in natural hazard management Each conservation authority has a Regulation of Development, Interference with Wetlands and Alterations to Shorelines and Watercourses under the Conservation Authorities Act which conforms to a provincial template regulation. Under these regulations, conservation authorities regulate development and other activities in and near natural hazard areas such as shorelines, floodplains, unstable slopes, wetlands, and other hazardous lands, such as karst topography and Leda clay. Development is prohibited in areas designated by the regulation unless permission is granted by the conservation authority. Landowners or developers may need permits from a conservation authority, similar to a building permit, to do work such as constructing buildings or placing fill in these areas. These regulations were put in place after the devastating impacts of Hurricane Hazel in 1954. Conservation authorities also do flood forecasting and warning, flood and erosion control, ice management and drought programs, and contribute to municipal land use planning. Role in environmental protection Conservation authorities may have programs to protect local ecosystems and contribute to the quality of life in communities throughout the province. Some of the activities conservation authorities may include: Water resource management - Conservation authorities carry out research and activities to manage Ontario's water resources on a watershed basis, maintain secure supplies of clean water, and contribute to municipal planning processes. Stewardship - conservation authorities collectively own about 146,000 hectares of land in Ontario. They also may work with landowners to plant trees or make other environmental improvements to private property, such as helping farmers improve drainage systems. Recreation - conservation authorities own over 400 conservation areas for public use, with 8,400