How safe is your water?

Article Abstract:

A growing number of Americans are becoming concerned about the safety of their drinking water with $2.1 billion and $450 million spent on bottled water and home treatment systems, respectively in 1995. The most serious threats to water safety are industrial chemicals, lead and microorganisms.

Analysis, Safety and security measures, Testing, Water, Drinking water, Water quality

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Water vapor almost busts dam

Article Abstract:

Glen Canyon Dam's integrity was at risk in 1983 because of cavitation, a situation when vapor cavities form in high-velocity water columns. Such cavities can shred concrete from spillways. The article includes discussion of the engineering used to correct the problem at this dam.

General services, Arizona, Accidents, Maintenance and repair, Concrete dams, Glen Canyon Dam, Arizona

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Oil and water

Article Abstract:

Drilling for oil and gas in the Gulf of Mexico is examined in detail. There are 4,000 drilling platforms in the region and they produce 93 percent of American offshore oil and natural gas.

Crude Petroleum and Natural Gas Extraction, Crude petroleum and natural gas, Offshore Oil & Gas, Petroleum industry, Gas industry, Offshore oil fields, Gulf of Mexico

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