10.4122/1.1000001156 Trulli, E. Boari, G. Potential surface pollutant load of daily rainfall for stormwater disposal planning in urbanized basin DTU Library, Technical University of Denmark (DTU) 2005 Urbanized basin daily rainfall separate sewerage polluting load TSS COD EPA-SWMM Universit\303\240 degli Studi della Basilicata, Dipartimento di Ingegneria e Fisica dell\342\200\231Ambiente en Conference full text 10.4122/1.1000001155 application/pdf 1 The efficient planning of stormwater disposal in densely urbanized basins during rain time periods requires the verification of the pollutant load discharged into the end receiver water body and, according to the law, should keep into account the specific use the water resource is devoted to. It is difficult to foresee the associated polluting loads especially because of the irregular succession of rainfall, the complex evolution of transport processes on the surface basin and the flow variability in sewers. In order to calculate the surface polluting load rates of drainage water conveyed into separate sewerages, the present paper illustrates the results of an elaboration regarding the daily rainfall observed in the urbanized basin of the river Basento in Potenza. The rain events we examined were characterized by a total depth higher than10 mm. Total suspended solids and COD were examined as quality parameters. Total mean and peak loads were calculated. A simulation of the water quality was carried out by means of EPA-SWMM. The input phase has been implemented using a data processing system which allowed us to elaborate drainage basin territory data.