2009-12-022011-12-122009-12-022011-12-121996-112009-12-02http://hdl.handle.net/2152/6745engLumped parameter modelUrban developmentWater qualityBarton Springs -- TexasEdwards Aquifer -- TexasWater levelsNitrogen concentrationA parsimonious model for simulation of flow and transport in a karst aquiferTechnical Report