Water and Wastes Digest Archive


July 2012
Ask anyone about the role safe drinking water plays in public and economic health and the answers undisputably would be the same: crucial. Now ask: What are utilities doing to ensure that safe water is available at the turn of the tap? The answer is:...
There is a lot of serious talk about America’s overstressed, underfunded and unappreciated water and wastewater infrastructure systems, but what are we doing about it? Are there some guiding principles for innovative, sustainable financing? Here are five...
When it comes to describing the Chicago Metropolitan Water Reclamation District’s (MWRDGC) Tunnel and Reservoir Protection Plan (TARP, also know as “Deep Tunnel”), superlatives abound. Once touted “the largest undertaking of its kind ever attempted by...
When disaster strikes, we are quickly reminded of how critical emergency preparedness is to the public utilities industry and to the welfare of the general public. Disasters remind us how dependent we are on the underlying infrastructure that delivers...
The small town of Berryville, Va., with a population of 3,100, is situated 60 miles west of Washington, D.C., near the Shenandoah River, which flows into the Potomac River—one of the Chesapeake Bay’s major tributaries. Nutrient pollution from wastewater...
The past decade has ravaged Florida from its panhandle to the Keys, with five major hurricanes. In 2010, the city of Tallahassee determined that, for several of its master sanitary pump stations, adequate backup pumping capacity was necessary to continue...
The monitoring and control of water utility processes is done with what the industry calls “SCADA systems.” That acronym stands for “Supervisory Control and Data Acquisition.” We do not see a letter, however, that describes what to do with all of that...
Abundant ocean waters may surround Eleuthera in the Bahamas, but freshwater supplies are scarce and uncertain on this arid, sand-and-coral island about 240 miles southeast of Miami. The only available sources of freshwater on Eleuthera are pools of...
The collapse of an existing sanitary sewer line in Logan, Utah, in May 2011 compelled the city to develop fast-track plans for replacing the entire 1-mile-plus run. The 18-in.- diameter concrete pipeline was replaced and upsized using almost 6,000 ft of...
With increasing risk management requirements and the desire to avoid multiple chemical feed systems, municipalities are looking to utilize ultraviolet (UV) disinfection systems at wastewater treatment plants (WWTPs) as an alternative to conventional...

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