Aquifer Study Articles & Analysis
46 articles found
Motivation The Cosumnes River watershed system in Central California is an extremely valuable resource, supplying water for agriculture and domestic needs and provides critical habitat for natural resources. It is one of the few remaining dam-free rivers in the region with a natural salmon run and supports some of the most productive agricultural areas of California. The subbasin has been ...
Seawater is rapidly intruding into coastal aquifers, but alternative water sources can slow its progress On the East Coast of the United States, seawater is creeping inland, contaminating fresh water in underground aquifers. ...
Bottom Line: GeoTrax Survey was used to locate the source of fresh water springs in the Great Artesian Basin (GAB), South Australia Blue zones shown above represent the interpreted distribution of upwelling of GAB fluids to the spring mounds Green rectangles shown above represent spring dependent surface vegetation Yellow circles represent inferred connections to surface based on GeoTrax ...
Motivation The Cosumnes River watershed system in Central California is an extremely valuable resource, supplying water for agriculture and domestic needs and provides critical habitat for natural resources. It is one of the few remaining dam-free rivers in the region with a natural salmon run and supports some of the most productive agricultural areas of California. The subbasin has been ...
Mace of the Meadows Center for Water and the Environment at Texas State University draws attention to unrealistic planning for many aquifers, while offering an optimistic view of opportunities for groundwater sustainability overall. Of the 21 aquifers he studied, 13 are currently being pumped at or below the maximum sustainable production ...
A recent study found that one in five water wells are at risk. Solutions like water reuse and desalination can help preserve endangered aquifers. A new study in the journal Science reports that up to 20% of groundwater wells around the world are in danger of running dry mainly due to overpumping and drought. ...
Motivation The US Geological Survey and water managers in California required improved understanding of saltwater intrusion in deep, coastal Southern California aquifers. In San Diego, the groundwater managers needed unambiguous, high-resolution information on the hydrologic properties of water-bearing formations beneath San Diego Harbor, to depths of up to 3000 feet, to identify and assess the ...
Each of these constituents had a potential significant impact on possible treatment processes. HiPOx® CASE STUDY Aquifer Storage Recovery, Wichita, KS Municipal Water Treatment for Reuse OWNER: City of Wichita, KS PROCESS: HiPOx Ex-Situ AOP APPLICATION: Atrazine; High TOC; Turbidity; Disinfection; Bromate control; Virus inactivation credits CAPACITY: ...
Microbe could prove an economical, environmentally sound method of addressing stubborn dioxane co-contamination A pair of industrial solvents associated with cosmetics and household cleaning products has been detected at thousands of aquifer sites nationwide, according to a new study published in Environmental Science and Technology Letters.The United States ...
Water levels in the study aquifer were simulated using three-dimensional finite-difference groundwater model (MODFLOW 2000) with GMS 8.3 as pre- and postprocessing software. ...
The Site 9 of the AquaNES project in Agon-Countainville (France) uses secondary effluent after reed bed and sand dune filtration for golf course irrigation in a coastal area. The underlying aquifer is prone to salinization. The study of Agon-Countainville site will demonstrate how innovative water quality monitoring and modelling linked to data management and ...
Steve Peterson, lead author of the study and a scientist with the agency explained: An assessment like this has not been done since the USGS High Plains Regional Aquifer-System Analysis (RASA) study completed in the 1980s, so this effort represents a substantial update of the technology and science beyond what was available during that time. ...
Problem A US Government site had elevated TCE. Low aquifer pH stalled in situ bioremediation. Project Goal Inject organic substrate in the aquifer to enable naturally-occuring bacteria to effect in situ anaerobic reductive dechlorination Control pH to sustain long-term performance Achieve regulatory remediation levels of 5 µg/L TCE in groundwater and 53 µg/kg TCE in soil ...
Potable water in the Zululand coastal plain, Sodwana, South Africa can be enhanced by: (i) providing detailed information on the aquifer system using geophysics; (ii) providing information on groundwater quality and its efficient use; (iii) providing low-cost/low technology local drillers with light-weight, manoeuvrable rigs with trained teams for drilling of 6-inch diameter ...
The slug test is still one of the simplest and cost-effective methods to interpret the hydraulic parameters for aquifer analysis. This study introduces two new estimation approaches for the slug test, the time shift method (TSM) and arc-length matching method (AMM), to identify aquifer parameters in a reliable and accurate manner, which was ...
The aim of this paper is to determine redox categories, along with prevailing redox processes, and the differences in groundwater quality between shallow alluvial aquifers of Serbia's major rivers. The research was conducted on public water-supply wells in the alluvial plain of the Velika Morava River, the Danube River, the Tisa River and the alluvial aquifer of ...
3D-fluorescence spectroscopy was used as a monitoring tool to describe the fate and transport of dissolved organic matter (DOM) during groundwater recharge using recycled water, imported water, and stormwater at a managed aquifer recharge site in California. The study was supplemented by analysis of conservative wastewater-derived trace organic chemicals ...
The results from the chemical analysis revealed that the groundwater of the Quaternary aquifer is less saline than that of the Miocene aquifer and the main factors that control the groundwater salinity in the studied area are primarily related to the genesis of the original recharging water modified after by leaching, dissolution, cation ...
Groundwater salinization is an ever increasing problem in coastal aquifers due to seawater intrusion resulting from excessive groundwater withdrawals, lithological conditions of the aquifer and industrial and agriculture pollutant loads. Identification of salinity sources is challenging and a prerequisite for the protection of coastal fresh water ...
Aquifer recharge with reclaimed water is a promising means to store and supply on demand reclaimed water of high quality for further non-potable reuse. The reuse applications may include indirect agricultural or landscape irrigation, saltwater intrusion barriers, subsidence mitigation or aquifer replenishment. As an alternative to high-pressure or ...