This makes them very useful in highly urban areas without completely removing the use of the land area they occupy. Vegetative Practices Vegetation can be used to reduce velocity of stormwater flow and create areas that can infiltrate and filter stormwater runoff. Various types of vegetative practices can be built into any type of development activity. Buffers , grassed swales, and filter strips are examples of vegetative measures that can be used as stormwater management features. These types of measures do not, however, have very high pollutant removal capabilities and are usually used in conjunction with other stormwater measures.
Pollutant removal is through the sedimentation process.
Infiltration Practices Infiltration practices may be basic structures or trenches that are designed to capture stormwater runoff and completely infiltrate it into the soil. These devices are limited to areas where the soil conditions are appropriate to allow for infiltration of the design storm. Any type of stormwater management measure or system must have proper operation and maintenance practices. This includes establishing procedures that will be followed for upkeep of the system and the designation of personnel who will be responsible for these duties. Proper operation and maintenance is essential to assure that the stormwater control measure functions appropriately for the life of a project.