The Iowa Stormwater Control Ordinance (DISCO) is a set of regulations implemented by the state of Iowa to manage stormwater runoff and protect water quality. It serves as a guideline for implementing stormwater management practices in both urban and rural areas to minimize the adverse impacts of stormwater runoff on Iowa's lakes, rivers, and streams. One key objective of the Iowa Stormwater Control Ordinance is to reduce the volume and velocity of stormwater runoff, which helps prevent erosion and flooding while promoting groundwater recharge. Additionally, the ordinance aims to improve water quality by reducing the amount of pollutants and contaminants carried by stormwater runoff into Iowa's water bodies. The Iowa Stormwater Control Ordinance applies to various types of development and construction activities, including but not limited to residential, commercial, industrial, and institutional projects. It encompasses both new development and redevelopment projects, emphasizing the importance of incorporating stormwater management practices from the planning and design stages. Different types of Iowa Stormwater Control Ordinances may exist at the local level. These local ordinances may supplement or modify certain provisions of the statewide ordinance to address specific regional or site-specific stormwater management concerns. Local ordinances can include additional requirements or provide more detailed guidance for stormwater management practices based on the unique characteristics and needs of the particular area. Some common types of stormwater management practices encouraged or required under the Iowa Stormwater Control Ordinance include the use of green infrastructure, such as bio-retention cells, rain gardens, and permeable pavement, which help to capture and infiltrate stormwater. Other practices include the use of sediment control measures, erosion and sediment control plans, and the implementation of stormwater detention and retention basins. Compliance with the Iowa Stormwater Control Ordinance often involves the submission of stormwater management plans detailing the proposed stormwater control measures, calculations, and specifications. The plans must demonstrate compliance with the ordinance guidelines and be reviewed and approved by the relevant regulatory authorities. In conclusion, the Iowa Stormwater Control Ordinance is a comprehensive framework designed to reduce stormwater runoff volume, prevent erosion, and protect water quality across the state. It encompasses various stormwater management practices and applies to different types of development and construction activities. Local ordinances may also supplement the statewide regulations to address specific regional requirements and site conditions. By implementing adequate stormwater control measures, Iowa aims to preserve its water resources and maintain a sustainable environment.