Stormwater particle characteristics of five different urban surfaces

Brodie, Ian and Porter, Mark (2006) Stormwater particle characteristics of five different urban surfaces. In: 7th International Conference on Urban Drainage Modelling & 4th International Conference on Water Sensitive Urban Design, 2-7 April 2006, Melbourne, Australia.


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Five stormwater monitoring sites were established in late 2004 within inner city Toowoomba,
Australia. The monitoring sites had small catchments (50 to 450m2 area) representative of urban
impervious areas (galvanized iron roof, concrete carpark and bitumen road pavement) and pervious
areas (grassed and exposed bare soil). Flow-weighted samples were taken at each site to determine
the event mean concentration of Non-Coarse Particles (NCP), defined as particles less than 500μm in
size. Overall, runoff from 24 storms with rainfalls from 2.5mm to 48.5mm was sampled during the
period December 2004 to June 2005. This paper describes the characteristics of the sampled
stormwater particles including size distribution, inorganic content and mass loading generated from
each surface type. On an equal area basis, the road surface produced the highest NCP load during
small-to-moderate storms less than 20mm rainfall.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 11 Oct 2007 01:04
Last Modified: 13 Jun 2016 01:39
Uncontrolled Keywords: urban runoff, stormwater characteristics, particle size distributions, stormwater monitoring
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090508 Water Quality Engineering
09 Engineering > 0905 Civil Engineering > 090509 Water Resources Engineering

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