groundwater wells Articles

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Gasoline Contaminants in Groundwater - Case Study

by EN Rx  (Apr. 16, 2015)

Site Overview Active gas station in Sebring, FL FDEP Site Number: 8629375 Contamination Gasoline contaminants in ground water Two site features that have long been a detriment to chemical oxidant treatments at sites have recently been overcome by EN Rx. These are free product treatment ...

Why it’s time to elevate groundwater

by The World Bank  (Apr. 9, 2015)

Groundwater stored in the earth’s crust underpins all our lives – the ultimate source of freshwater for billions has become victim of over-extraction and the ultimate sink for pollutants.   For too long, not enough has been done to regulate the use of this precious, on-demand resource and manage disposal of waste. If rates of ...

Can saltwater quench our growing thirst?

by Ensia  (Apr. 13, 2015)

An increasingly water-stressed world takes a new look at desalination. It seems simple enough: Take the salt out of water so it’s drinkable. But it’s far more complex than it appears at first glance. It’s also increasingly crucial in a world where freshwater resources are progressively strained by population growth, ...

Shield Environmental Assoc. Defeats Bedrock Contamination with BOS 200® at Truck Stop

by Remediation Products Incorporated (RPI)  (Mar. 31, 2015)

Shield Environmental Associates (Lexington, KY) has faced some daunting challenges over many years of successful service to their clients, but this one was remarkable. The Problem: A 320 foot long dissolved BTEX plume in both shallow and deep zones in lithology very unfriendly to direct push sampling or injections. The Team: Shield Environmental ...

Groundwater management: a search for better policy combinations

by IWA Publishing  (Apr. 8, 2015)

Excessive groundwater pumping is now a global concern. There is no panacea for this problem, which needs to be addressed through continual policy improvements based on case studies. Good examples of the diversity of groundwater management are demonstrated by the Tokyo (Japan) and Orange County Water District (OCWD, California, USA) experiences. ...

Comparative analysis of groundwater fluorine levels and other characteristics in two areas of Laizhou Bay and its explanation on fluorine enrichment

by IWA Publishing  (Apr. 8, 2015)

The groundwater characteristics in two areas, Tushan town (TS) in Laizhou County and Puzhuang town (PZ) in Changyi County, were compared to discuss the dynamics of fluorine enrichment. Groundwater has average fluorine levels of 2.33 mg/L in PZ town ranging from 0.65 to 9.87 mg/L and of 0.91 mg/L ranging from 0.27 to 1.25 mg/L in TS town. The ...

Groundwater management in China

by IWA Publishing  (Feb. 6, 2015)

After introducing groundwater development and other issues, the paper analyzes China's groundwater management system and its problems, and provides suggestions for improving the system. Increasing water demand since the 1970s has resulted in severe groundwater overdraft, water level decline and water quality degradation in China, but the ...

Risk of diarrhoea from shallow groundwater contaminated with enteropathogens in the Kathmandu Valley, Nepal

by IWA Publishing  (Feb. 27, 2015)

Shallow groundwater is the main water source among many alternatives in the Kathmandu Valley, Nepal, which has a rapidly growing population and intermittent piped water supply. Although human pathogens are detected in groundwater, its health effects are unclear. We estimated risk of diarrhoea from shallow groundwater use using quantitative ...

Numerical simulation of drainage scenarios for lowering groundwater rise due to construction of a new barrage on the Nile River

by Inderscience Publishers  (Mar. 2, 2015)

The government of Egypt constructed a New Naga Hammadi Barrage (NNHB) 3.6 km downstream of the Old Naga Hammadi Barrage (ONHB). Upon construction, the water level raised by about 0.5 and 4 m upstream and within the river reach between ONHB and NNHB respectively. In this paper, a two–layer groundwater model was built using MicroFEM to study the ...

Well water win-win

by Ensia  (Oct. 22, 2014)

Solve two problems with one filter? That’s what Drinkwell aims to do. Begun through a collaboration between researchers at Lehigh University and the Bengal Engineering and Science University, the Boston-based social venture ...

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