Solar-powered Irrigation Improves Life in Rural sub-Saharan Africa Solar-powered drip irrigation systems significantly enhance household incomes and nutritional intake of villagers in arid sub-Saharan Africa, according to a new Stanford University study. The two-year study found that solar-powered pumps installed in remote villages in the West African nation of Benin are a cost-effective way of delivering much-needed irrigation water, particularly during the long dry season.
Origin of Dissolved Arsenic in Bangladesh Ground Water Identified Researchers at MIT believe they have pinpointed a
pathway by which arsenic may be contaminating the drinking water in Bangladesh. Their research suggests that human
alteration to the landscape, the construction of villages with ponds, and the
adoption of irrigated agriculture are responsible for the current pattern of
arsenic concentration underground.
CGA Meets in Reno The California Groundwater Association (CGA) held its 61st Annual Convention and Trade Show, Nov. 5-7, 2009, in Reno, Nev.
Direct-Push Platforms – Part 1 Direct-push platforms have gained widespread acceptance in the environmental industry because of their versatility, relatively low cost, and mobility.
Dual-rotary Drilling The distinguishing feature of the dual-rotary (DR) drill rig is a lower rotary drive, which is used to independently advance casing up to 40 inches, depending on the drill model.
"Recently,
a drill crew had dry-augered a hole 28 inches into the topsoil (beach sand),
and was driving a pit casing (pit tee) with a sledgehammer while a state
regulator was observing ..."
Siting, Drilling, and Construction of Water Supply Wells You get professional and expert guidance in all aspects of water-well siting and drilling. A wealth of engineering data for design and construction, plus dozens of photographs and drawings, are included. The book describes and illustrates all common drilling methods, geophysical logging, and field testing. Well development, which may be the most important part of the well-drilling process for assuring well productivity and long life, is covered in detail.
The book is designed to be a practical reference. Well operation and maintenance, including pump and motor maintenance, record keeping, water quality monitoring, and common operational problems, are explained thoroughly. Retail Price: $ 187.00 USD
Shop at BNP Media’s AEC Store for unique surveying gifts including a working, half-scale Rittenhouse Compass, impressive surveyor statues, compass medallions and more.
Shop at BNP Media’s AEC Store for unique surveying gifts including a working, half-scale Rittenhouse Compass, impressive surveyor statues, compass medallions and more. 
