Abstract: At issue is the common use of Gaussian distributed steps in producing the desired dispersive effects in contaminant transport modeling. Shown are alternative solutions to the governing transport equation describing mass ...

Abstract: A methodology is presented for assessing the relative risk of a given chemical inventory to produce a ground-water contamination event in accordance with wellhead protection (WHP) planning. Modeled after the U.S. Environmental ...

Abstract: Water quality modeling and prediction in a stream environment is complicated by the occurrence of a number of random processes. Due to the complexity of water quality model, the analytical derivation of the exact probability ...

Abstract: An analytic approach is developed for quantifying the distribution of fluid passage times in a heterogeneous porous medium. The basic methodology employed utilizes a diffusion theory description for the displacement of a ...

Abstract: The increasing practice of infiltration in disposal of storm-water runoff leads to concerns over the long-term quality of receiving ground waters. To ensure that best management practices are employed, understanding the ...

Abstract: A full-scale physical model of a modified infiltration trench was constructed to test a new storm water best management practice called an ecology ditch. The ditch was constructed using compost, sand, and gravel, and a ...