Groundwater

from Dakhla (210 kyr) toward Farafra (330 kyr) along the groundwater flow, and low velocities (~0.2 m/yr–6.34× 10-9 m/s) from Dakhla toward Kharga and Baris (490-680 kyr), and from Farafra (330 kyr) toward Bahariya, Bauti-1 (~1000 kyr; Fig. 5). These ages were interpreted as a local recharge through regional precipitation in the Uweinat area near the Egyptian/Sudanese border (Sturchio et al., 2004; Paterson et al., 2005). Chlorine-36 groundwater ages increase progressively eastwards from Siwa to Qattara

Hawaiʻi, with three primary regions of groundwater discharge: Black Point, Kawaikui, and Wailupe (Richardson et al., 2015). Two of these groundwater-influenced coastal locations, Black Point and Wailupe, were considered for this study (Figure 1). Three sites (a, ‘high GW’; b, ‘intermediate GW’; and c, ‘low GW’ zones) that spanned a salinity gradient were monitored from each reef. Site A at Black Point was approximately 5 m offshore of the dominant groundwater submarine spring while site A at Wailupe

GUJARAT” ABSTRACT Though groundwater is an important source of irrigation in India, its availability is non-uniform in space and time. In Saurashtra region of Gujarat state, problem of groundwater depletion has arisen due to high withdrawal than rate of replenishment of groundwater. This also resulted in seawater intrusion in coastal areas at very high rate. The water harvesting and groundwater recharge activities played an important role in increasing the groundwater resource and also improved

Since its use on the massive scale in 2003, hydraulic fracturing has become a very controversial topic. This process, also known as “fracking”, is a means obtaining deep deposits of petroleum, and uranium-bearing solution but most notably natural gas. This is achieved through drilling long horizontal shafts down to various rock formations, and pumping highly pressurized water, chemicals, or sand slurry into the well, fracturing the surrounding rock, and letting the desired resources flow freely.

This groundwater investigation seeks to monitor physical and chemical parameters sufficient to characterize groundwater throughout the study area and ultimately determine the source of chlorinated organic compounds in Wells G & H. In addition to analyzing samples for conventional parameters (groundwater table elevation, field parameters, chemical concentrations), this study will incorporate technology utilized in the emerging field of environmental forensics to conduct compound-specific isotope

Gas migration along with surface and groundwater contamination are the three dominant types of landfill failure in the survey area. Besides, slope failure and fire occupy 8% and 3% of the total failure respectively. Landfill gas is a complex mix of different gases created by the action of microorganisms

new doctrine appropriative groundwater right holders only had access to excess water that the overlying users did not need, but with the new doctrine “groundwater withdrawals could be judicially limited to safe yield by proportionally reducing the pumping of all parties, using five-year periods of highest continuous use following the beginning of overdraft as the measure for the amount of water to which the reduction would apply” (Weatherford et al. 1982). When groundwater overdraft was experienced

Fracking technology. What are the environmental and health issues related to fracking technology on extraction of shale gas and oil? Unconventional gas and oil extraction process known as hydraulic fracturing, hydrofracking or fracking is a technique used to extract shale gas and oil, on which high pressure fluid is injected, mainly water, containing sand, chemicals or other granular materials which are pumped with a fluid medium under pressure into rock, so that fractures formed in this process

applied to differentiate the contribution of natural sources to the chemical composition of groundwater in Jaypurhat district. This analysis also helps to find out information from datasets about sources of ion and factor controlling in groundwater quality. Factors with eigenvalues exceeding one were only considered for the study. Based on eigenvalues more than 1, seven PCs were extracted from groundwater quality parameters, which represented 90.69 % of total variance in the study area. A scree plot

sources: groundwater, imported surface water, and local mountain surface water. These 3 sources contribute different amounts of water to the San Jose community. Imported surface water composes about 50 percent of our water supply, while ground water composes roughly 40 percent, and local mountain surface water composes approximately 10 percent (Santa Jose Water Company, 2016). However, these percentages can change due to factors such as weather and global warming. Groundwater Groundwater is water