Stable water usage, but some groundwater concerns, USGS report indicates

Modeling surface water-groundwater interaction with MODFLOW: some considerations.

The accuracy with which MODFLOW simulates surface water-groundwater interaction is examined for connected and disconnected losing streams. We compare the effect of different vertical and horizontal discretization within MODFLOW and also compare MODFLOW simulations with those produced by HydroGeoSphere. HydroGeoSphere is able to simulate both saturated and unsaturated flow, as well as surface wa...

Nitrate in Wisconsin Groundwater: Sources and Concerns

residues is applied to the land, it undergoes numerous chemical, physical and biological reactions. In its nitrate form (NO3), it can move down through soil into groundwater. Nitrate can also be a factor in surface water quality problems. In sufficient concentrations, nitrate in drinking water can be toxic to infants. Scientists are also investigating possible links between nitrate and other lo...

Groundwater Quality Zoning for Agricultural and Drinking Usage Using Water Quality Index and Geostatistics Techniques in Semnan Watershed

Determination of water quality is an essential issue in water resources management and its monitoring and zoning should be considered as an important principle in planning. In this study, in order to investigate the quality of groundwater resources (springs, wells and qanats) in Semnan watershed, first, the water quality index for drinking and agricultural purposes was obtained by means of meas...

Ebooks: Some Concerns and Surprises

Many librarians believe that the publication of Stephen King’s Riding the Bullet will be a turning point in the history of libraries. Until its publication, electronic books represented an alternative to paper-based books, not a replacement for them. But the success of King’s ebook-only novella demonstrated that a title could be a bestseller without the author ever putting ink to paper, and man...

Groundwater Research Report