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Attachment A City of Roseville Storm Water Credit Program Purpose: The purpose of the Stormwater Credit Program is to encourage city property owners to manage rainwater in ways that help deal with problems arising from stormwater runoff in an urban environment. In Roseville, the large amount of impervious surfaces such as asphalt, concrete, roofs, sidewalks, etc., stop stormwater from naturally absorbing into the ground. The runoff from these areas transports pollutants like phosphorus, nitrogen, heavy metals, petrochemicals, fertilizer, pet waste and other common chemicals to receiving bodies of water and is a major source of water pollution in urban areas. In an urban environment, the amount of impervious area on a property is the most significant factor affecting the quality and quantity of stormwater runoff. By using stormwater Best Management Practices (BMPs) property owners can partially duplicate the effect of the open areas and wetlands that provided natural drainage prior to urbanization. The program establishes criteria for applying a credit to property owners based on their land use and how the Storm Water Utility is charged to the property. Single Family and Duplex residential properties are charged per lot while all other land uses are charged by the acre. Updated: 25 April 2014 R:\PublicWorks\Engineering\Drainage\StormWaterUtility\Stormwater Credit Program.docx