Author(s): B. C. Phillips; S. Pells; J. Garside
Linked Author(s): Brett C Phillips
Keywords: Rainfall; Runoff; Groundwater; Pedoderms; Ponds; Stormwater harvesting
Abstract: The Canberra Integrated Urban Waterways Project (CIUWP) seeks to develop alternative non-potable water sources in Canberra. Two ponds located at Flemington Road in northern Canberra are potential sites for alternative sources of water. Pond P1 captures runoff from a developed catchment. Pond P2 captures runoff from an undeveloped 1300 ha catchment. Field data monitored in 2009/2010 concluded that the surface water model should not predict any baseflow, and should include interception and transmission losses to reproduce the observed inflows to Pond P2. The assembly of a daily rainfall/runoff/infiltration model which was calibrated against monitored water levels in three boreholes was used to estimate the reduced inflows to Pond P2 is outlined. It is concluded that gaining an understanding of the impact of pedoderms on catchment runoff was a key factor in assessing the yields from stormwater harvesting at Flemington Road in the ACT.
Year: 2011