The Challenges of Stormwater Management
Water Engineering & Management
November 2002
Bryan A. Coppes
Stormwater management and its role in the larger challenge of preservation of water quality around the world is an evolving issue. As commercial development continues at record levels, both the quantity of runoff and water quality are issues that need to be looked at carefully. The engineering community is being pushed to design new solutions that keep groundwater and surface water ecology safe and that also protect development economics.
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MTBE
Water Quality Products
May 2001
Andrew McClure and Neal Megonnell, Calgon Carbon
With outbreaks such as the one in Santa Monica, Calif., the problem of MTBE has not gone unrecognized. Legislation and technologies are being developed to eliminate the spread of this possible carcinogen.
Oxidizing Arsenic III to Arsenic V for Better Removal
Water Quality Products
March 2001
Dr. Dennis Clifford and Ganesh Ghurye, University of Houston
On June 22, 2000, the U.S. Environmental Protection Agency (EPA) proposed lowering the maximum contaminant level (MCL) for arsenic from 50 down to 5 micrograms/L (Federal Register, 2000).
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EPA Issues Proposed New Rule on Groundwater
Water Engineering & Management
June 2000
Robert Gray
The Environmental Protection Agency said that a new rule it is proposing will "establish multiple barriers to protect against bacteria and viruses in drinking water from groundwater sources.
Filter Media Rids Iron from Groundwater
Water Engineering & Management
December 1997
Yun H. Zhang
The most common process for iron removal from water is to allow water-soluble ferrous iron (FE2+) in water to turn into water-insoluble ferric iron (Fe3+), and then capture FeIII (iron oxide) particles by filtration.
How to Select the Right Groundwater Sampler
Water & Wastes Digest
September 1997
Before selecting a sampler, all of the particulars in the project must be considered to determine which pump is most suitable. In some applications, custom units may be designed for specialized uses.
Problem Solver: Reverse Osmosis Removes Hexavalent Chromium from Groundwater
Water Quality Products
August 1997
A rural chrome plating facility faced a critical waste removal problem. Over time, a significant quantity of toxic hexavalent chromium had leaked from their facility into the ground and contaminated nearby wells. A government regulatory agency threatened legal action if the facility was not able to reduce the hexavalent chromium concentration in the groundwater by 99.9 percent.
Drink the Water: Proven Methods, New Advances in Ground Water Treatment
Water & Wastes Digest
March 1997
Robert W. Masters
Ground water is the most popular source for water in the United States. Now with growth of proven treatment methods and advances in treatment technologies for contaminated ground water, the future is bright for the ground water industry.
Artificial Recharge Enhances Aquifer Capacity
Water Engineering & Management
November 1995
Frank Getchell and Dave Wiley
Aquifer storage and recovery is becoming an important water supply management tool for maintaining or enhancing the water-bearing capacity of an aquifer.
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