STORMWATER DETENTION AND BMPS

The Paper outlines the considerations involved in stormwater hydrologi cal and pollutant mobilisation processes, and the selection of stormwa ter detention and pollution control Best Management Practices (BMPs). In addition, it provides a summary of the major BMPs commonly used, in cluding material on their purpose, description and performance. A Tabl e is included providing broad indications of pollutant removal and flo w attenuation capacities of each BMP. The non-structural range of BMPs summarised includes the modification of the use and disposal practice s of household chemicals, land uses and management practices, on-site programs of runoff management, the management of pollutant build-up, a nd sewer infiltration management. The structural range of BMPs summari sed includes infiltration and local disposal systems, retention or res toration of natural vegetated channels, inlet controls, detention basi ns, retention ponds and wetlands, and in-pond treatment.