Researchers recently completed a study demonstrating that taking local geography into account would result in water-quality testing that not only is at least as effective as current federal testing, but also less expensive, so that resources could be used to test for a wider range of contaminants in more communities. Their conclusion: Water-quality monitoring needs to be tailor-made for each community.
In Asia, rice is a dietary staple, but one that is threatened by arsenic contamination. The arsenic-rich sediments of the Ganges and Brahmaputra river filter into ground water – water that is pumped to the surface through millions of tube wells, then used to irrigate crops. But a new study shows that improving irrigation practices can reduce the threat.
With help from U.S. Army civil affairs officials, a village contractor recently worked to restore the drinking water supply for the Iraqi town of Sedamine and four surrounding villages. But the well drilling project brings more than just water to Iraqi villagers.
It can crush ice sideways and stay precisely on station to an accuracy of 3 feet. It can drill a hole 3,280 feet deep into the seabed while floating above more than 16,400 feet of ocean, and it can generate 55 megawatts of power.
Brayman
Construction Corp., headquartered outside of Pittsburgh, Pa., provided a
diverse range of products and services for the fast-track SR-28 project in
Etna, Pa.
According
to a recent study by the U.S. Geological Survey, human activities are impacting
ground water resources. In study of 30 randomly selected public water-supply
wells, there was a correlation found between increasing populations and increases
in contamination.
Though
a worldwide problem, arsenic contamination of drinking water does not have a
universal solution. Instead, recent work on arsenic-tainted wells shows that
appropriate treatment varies, depending on the source of the contamination.
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