Groundwater use can reduce streamflow by reducing groundwater flows into streams and/or increasing losses from the stream aquifer (‘streamflow depletion’). Streamflow depletion impact aquatic ecosystems through changes in availability and temperature of surface water. Regions with a combination withdrawals groundwater-dependent resources therefore require management strategies that respond to n...

This study aims to derive the optimal solution for well locations based on the allowable withdrawal. To demonstrate the proposed technique, a numerical model of a typical well field at the Qinbei Power Plant was constructed and 20 possible drawdown scenarios were simulated for each of three different arrangements of pumping wells. The concept of the Unit Increased Drawdown Value (UIDV) was used...

The Central Valley of California is one of the most productive agricultural locations in the world, which is made possible by a complex and vast irrigation system. Beginning in 2012, California endured one of the worst droughts in its history. Local impacts of the drought have been evaluated, but it is not yet well understood how the drought reverberated through the global food system. Here we ...

Agriculture on the Texas High Plains (THP) uses approximately 89% of groundwater withdrawals from the Ogallala Aquifer. Consequently, groundwater levels are declining faster than the recharge rate. Therefore, efficient agricultural water use is essential for economic viability and sustainability of the THP. Accurate regional evapotranspiration (ET) maps would provide valuable information on act...

First posted April 5, 2021 For additional information, contact: Director, Lower Mississippi-Gulf Water Science CenterU.S. Geological Survey3535 S. Sherwood Forest Blvd., Suite 120 Baton Rouge, LA 70816 Information concerning the availability, use, and quality of water in St. Martin Parish, Louisiana, is critical for proper water-supply management. The purpose this fact sheet to present informat...

Public-supply wells with long screens in alluvial aquifers can produce waters of differing quality from different depths. Seasonal changes in quality are linked to seasonal changes in pumping rates that influence the distribution of flow into the well screens under pumping conditions and the magnitude and direction of intraborehole flow within the wells under ambient conditions. Groundwater flo...

Springs sustain groundwater-dependent ecosystems and provide freshwater for human use. often occur because faults modify groundwater flow pathways leading to discharge from aquifers with sufficiently high pressure. This study reviews the key characteristics physical processes, field investigation techniques, modelling approaches management strategies fault-controlled spring systems. Field techn...

Abstract. Persistent surface water pools along non-perennial rivers represent an important resource for plants, animals, and humans. While ecological studies of these features are not uncommon, rarely accompanied by a rigorous examination the hydrological hydrogeological characteristics that create or support persistent river pools. Here we present overarching framework understanding hydrology ...