UK research into the performance of permeable pavement, reservoir structures in controlling stormwater discharge quantity and quality

Author:

Pratt C. J.1,Mantle J. D. G.2,Schofield P. A.2

Affiliation:

1. School of The Built Environment, Coventry University, Coventry CV1 5FB, UK

2. Department of Civil and Structural Engineering, Nottingham Trent University, Nottingham NG1 4BU, UK

Abstract

The paper reports on a field study on a permeable, reservoir pavement constructed in 1986 at Nottingham, UK; surfaced with permeable, concrete block paving; and with a different sub-base stone-type in each of four reservoirs, from which the discharges were monitored for quantity and water quality. Hydrological relationships involving rainfall, outflow, outflow duration and antecedent conditions are presented. Water quality parameters are shown to be stable in value after some six months, by which time surface contaminants on the sub-base stone had been washed out of the construction. As outflow volume is reduced and water quality parameters (SS and Pb) are low in value, pollutant outflow loadings are significantly lower than with traditional, impermeable surfaces.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

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