The stormwater retention performance of rainwater tanks at the landparcel scale'

Abstract

The use of tanks to harvest and store rainwater has the potential to simultaneously: 1) augment potable water supplies and 2) restore some aspects of pre-development flow regimes in receiving waters. However, the use of rainwater tanks to achieve these multiple objectives has not been well quantified. Such quantification is required to assist the development of computer models of urban water systems capable of up-scaling the effects of rainwater harvesting at the land-parcel scale to simulate catchment-scale responses. In this paper, we quantify how the use of rainwater tanks in a temperate climate (740 mm average annual rainfall) can achieve these multiple objectives at the land-parcel scal..