we report engineering experiences from the critical task of relief well installation under high artesian flow conditions at the downstream toe of the karkheh earth dam, iran. due to the establishment of excessive uplift pressure at the downstream toe of the karkheh dam, installation of a series of new relief wells was considered to permanently relieve part of these pressures. the mentioned upli...

Diffuse groundwater discharge (also known as vertical leakage) forms an important and poorly constrained component of the water balance of the Great Artesian Basin (GAB), Australia’s largest groundwater resource. Around the south-western margin of the GAB, the diffuse leakage from the artesian aquifer discharges into the unconfined water table and subsequently into the atmosphere via evapotrans...

e study the dynamics of elongated axisymmetric particles undergoing shear flow between two arallel planar walls, under creeping-flow conditions. Particles are modeled as linear chains of ouching spheres and it is assumed that walls are separated by a distance comparable to particle ength. The hydrodynamic interactions of the chains with the walls are evaluated using our artesian-representation ...

By Surgn.-Capt. P. IIeiiiu, m.d., f.r.s.e., d.p.h. Camb., Fellow, Santy. Inst., Fellow of British Inst., Pub. Health, Health Officer, Chudderghat Municipality. 1 iieiie are three varieties ot wells, shallow or superficial, deep and artesian. The last mentioned may be considered a variety of deep well, and we will dispose of it with a few words, for the reason that artesian wells have, up to dat...

Artesian basins include groundwater that may rise above the land surface with free-flow conditions which make it possible to exploit without pumping. The change non-artesian have large implications for local people using artesian wells drinking and other purposes. We applied a 3D physically based model assess future head developments in Turonian-Coniacian (T.C.) aquifer of southern Benin under ...

We present a new method to characterize and quantify groundwater discharge to estuaries and the coastal ocean. Using data from the Pages Creek estuary in the Cape Fear region of southeastern North Carolina, we show that the concentration and carbon isotopic composition (D14C and d13C values) of dissolved inorganic carbon (DIC) can provide a tracer of a single, well-defined component of the surf...

The aim of this work was to compare, from a parasitological ( Cryptosporidium spp. and Giardia duodenalis), bacteriological (total and thermotolerants coliforms) and physicochemical perspective, water sources used for drinking and irrigation of vegetables intended to be sold for human consumption. From January 2010 to May 2011, samples of different water sources from vegetable producing propert...