Low impact development combines a hydrologic functional design of an area with pollution prevention measures to offset the negative impact of urban development on hydrology and water quality. Low impact development (LID) is an radically different approach from conventional methods of storm water management. Low impact development improves the ability to protect surface and ground water quality, maintain the integrity of aquatic resources and ecosystems and to improve the process of infi ltration. Hydrological analysis shows how to quantify existing conditions and those obtained after development, pursuing different design scenarios. This paper presents one of the Low Impact Development stages of identifying and selecting integrated management techniques.