Origin of solids
Origins of solids - Surface solids entry through catch basins (2)
The type and amount of solids in the stormwater runoff from sealed and unsealed surfaces varies from location to location and is influenced by :
- Location, type, size and use of the catchment area
- Material and type of surface
- Duration of the precipitation event preceding dry weather periods
- Duration and intensity of rainfall events
- Weather and season
- Frequency of street cleaning
- Type of street drainage systems and frequency of cleaning
- Traffic load and driver tendencies (braking and acceleration)
- Winter maintenance
- Location and distance to potential emission sources (wind drifts)