Urbanization can adversely effect water quality. The paved environment increases the velocity and temperature of runoff. A holistic planning process for development that considers water quality up front is necessary to mitigate development's impact on water quality.
Making a Difference in Water Quality for the Life of the Development
Ponds, swales, ditches, and depressions that you see every day may actually be engineered stormwater facilities or BMPs (Best Management Practices). BMPs when maintained properly have the ability to settle sediment and debris and reduce peak flows, providing a layer of protection for our creeks.
Any new construction or redevelopment project over an acre, starting in 2006, was required to install permanent BMPs in order to treat stormwater runoff from the development.
It is Required by Law
Developers are required to design and implement strategies which include the use of structural and/or non-structural BMPs appropriate for the community that address the discharge of pollutants from new development and redevelopment projects, and/or that maintain or restore hydrologic conditions at sites to minimize the discharge of pollutants and prevent in-channel impacts associated with increased imperviousness.
Design Before Construction
All the KICP communities reference Urban Drainage and Flood Control’s Volume 3 for BMP design.
The Urban Drainage Flood Control District Volume 3 Outlines the Four-step BMP Planning Process
- Implementing stormwater runoff reduction practices.
- Providing treatment of the Water Quality Capture Volume.
- Implementing streambank and channel stabilization techniques for any drainage ways within or adjacent to a project site.
- Providing additional treatment for pollution hot spots.
The community in which the development has taken place requires BMP inspection and maintenance so the BMP continues to function as designed.