A stormwater management system utilizing the mechanisms of sedimentation and filtration/infiltration was developed and constructed for the immobilization of suspended solids and heavy metal constituents (Fe, Zn, Pb, Cr, Cu, Cd, Ni) in runoff. Monitoring took place between May 2010 and November 2012 on a total of 24 storm events. This research on the fractionation of heavy metals in runoff and d...

Stormwater biofilters (also called rain gardens, bioretention systems, and bioswales) are used to manage stormwater runoff in urbanized environments. Some benefits of biofilters include flood prevention, stormwater runoff water quality improvement, and wildlife habitat. This technology has been implemented on a larger scale in southeast Australia, but cities and counties in southern California ...

Stormwater is often discharged to receiving waters without any treatment. However, treatment facilities are developed and are increasing in frequency but the question how to prioritise which discharges that should be treated still remains. The objective of this paper was to test a multicriteria analysis (MCA) method to be able to prioritise the need of stormwater treatment for different kind of...

Stormwater boxes aspects on verification, simulation and installation In the VINNOVA financed project “Grey-green system solutions for sustainable cities” a holistic approach is applied related to the challenges following as consequences of urbanization and expected climate changes. Solutions taking into account the interaction between green surfaces and grey surfaces are studied. The growing p...

Complaints about stream and sewer flooding have been increasing. Many departments need to do accurate stormwater calculations but have lacked affordable and useful software tools. Hydrologists and engineers usually calculate stormwater data for watersheds (i.e., drainage areas); the majority of a local government’s work is based on individual parcels and addresses. Quantifying stormwater in a f...

The traditional management of stormwater with a singular focus on flood protection has resulted in the degradation of receiving waters. The health of urban streams is degraded by a suite of stressors, notably, the frequent disturbance due to stormwater runoff. We investigate the catchment scale implications of allotment scale rainwater harvesting, in terms of potential simultaneous benefits for...

Clogging of permeable interlocking concrete pavements (PICP) due to the sediment contained in stormwater runoff has been shown to significantly reduce their infiltration capacity over time. Numerous studies have used laboratory-based PICP models and synthetic stormwater in an attempt to replicate and predict the clogging processes that occur in PICP field installations. A variety of sediment ty...

seattle has been working at green infrastructure for over a decade, and its commitment over many years has resulted in a serious overall program. the city does not yet have a comprehensive citywide green infrastructure plan; its Comprehensive drainage plan is generally supportive of green infrastructure (which it dubs “natural drainage strategies”), but does not spell out an overall vision of i...

1. Urban drainage systems fal into two categories: “separated” systems where stormwater and sewage is reticulated in separate reticulation systems; and “combined” systems where the same pipes are used for both. The report deals exclusively with the urban litter problems associated with the stormwater conduits and streams in a country where the stormwater and sewage are always (theoretically at ...

bioretention or rain garden is a preferable low impact development (lid) approach due to its characteristics which reflect natural water cycle processes. however, this system is still little understood and quite complicated in terms of design and implementation due to many technical considerations. hence, this paper gives a review of the challenges and developments for the use of bioretention f...