Measurement of Hydraulic Conductivity Variation
For a confined, sandy aquifer, the dependence of the horizontal hydraulic conductivity on the vertical coordinate has been measured using single-well tracer injection/recovery experiments....
Littoral Environment Observation Program
This paper presents a method for determining the longitudinal, transverse, and vertical dispersivities of a thick aquifer for a free convection tracer test using only measurements from...
New Plant Treats River and Well Water
A new 16 mgd water softening plant at Elgin, Ill. is designed to treat raw water either from the Fox River or deep wells, or in any combination. Flexibility of the chemical feed systems...
High Streamflow Behaviors in the Ohio River Basin
The intensity function, which describes the severity of the flood occurrences, is a critical factor in flood control and reservoir operation. It is found that the occurrence rates of high...
Cavitation in Various Types of Shear Flow
Cavitation in turbulent shear flow depends on the intensity and spectral characteristics of the pressure fluctuations in a Lagrangian frame of reference as well as depending on the concentration...
Decision Making in Establishing Instream Flow Needs in Minnesota
Allocation of water for instream use depends upon how well the need and justification for instream flows can be communicated to decision makers. The analysis and presentation of instream...
Mackenzie River Breakup: Ft. Simpson to Ft. Good Hope, N. W. T.
Breakup progression on the Mackenzie River in 1982 and 1983 is described. Two types of breakup, and two types of ice jam formation associated with these, were identified. The major role...
Boston Tunes Up Water System
In 1977, Boston's water supply system had so many leaks and so many unmetered or undermetered customers that only about half the water entering the system was accounted for....
Water Supply
In 1982, the Washington Metropolitan Area took steps to optimize its water supply for the next 50 years or more. Using state-of-the-art water resource management techniques, the local...
In Third World Villages, a Simple Handpump Saves Lives
Millions die each year and many more suffer in the developing countries from diseases spread by contaminated water. In fact, it is estimated that 80% of all disease in the world is due...
Chemical Spill Cleanup Named Project of the Year
A 1978 hazardous-waste spill in Michigan has been cleaned up so successfully that the American Consulting Engineers Council named it the 1982 project of the year. Here is how the railroad...
If Your City's Well Water Has Chemical Pollutants, Then What�
Synthetic organic chemicals, especially certain solvents, are showing up in groundwater all over the U.S. and in many other industrial countries as well. These substances, some of which...
Systems of Waste Water Management in Europe
The history of European waste water management is briefly reviewed. Legal aspects of waste water management are presented by examples from Germany and Switzerland. International agreements...
Underground Hot Water Storage Could Cut National Fuel Needs 10%
The possible conservation of waste heat by using it to heat water and then, subsequently, injecting the heated water into wells screened in aquifers containing saline water is described....
Reef Runway is First in Airport Design
The Reef Runway Project of Honolulu International Airport constructed on a coral reef, provides approximately 765 acres of new land for the 12,000-ft-long runway with its associated taxiways...
Direct Filtration�� Past, Present, Future
The Safe Drinking Water Act of 1974 for the first time established national drinking water standards on turbidity and other drinking water characteristics. Up until that time, the accepted...
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