Intermontane basins in the Trans-Pecos region of westernmost Texas and northern Chihuahua, Mexico, are target areas for disposal of interstate municipal sludge and have been identified as possible disposal sites for low-level radioactive waste. Understanding ground water movement within and between these basins is needed to assess potential contaminant fate and movement. Four associated basin a...

Solidification/stabilization technology is commonly used in the remediation of heavy-metal-contaminated sites, which reduces leaching capacity heavy metals, but total amount metals soil not reduced, there still a risk metal re-release and contamination groundwater, groundwater solidified/stabilized sites needs to be assessed. Through analysis system structure combined with integration method po...

Analytical studies are carried out to investigate groundwater head changes in a coastal aquifer system in response to tidal fluctuations. The system consists of an unconfined aquifer, a semi-confined aquifer and a semi-permeable confining unit between them. An exact analytical solution is derived to investigate the influences of both leakage and storage of the semi-permeable layer on the tide-i...

Abstract In rapidly growing cities in the tropics, unregulated urban development presents a major risk to groundwater quality. Here, we assess vulnerability of an unconfined aquifer Quaternary sands Thiaroye area Dakar (Senegal) contamination using four GIS-based indices (DRASTIC, DRASTIC_N, SINTACS, SI). Our correlation assessed observed impact is semi-quantitative, relating quality, based on ...