Presented is a survey of a river including physiochemical measurements and river fauna observations. It is shown that the self-purification gradient of river water quality and the possible ecological disturbances due to pollutants entering the river create an unpredictable pattern of recovery. (CW)

This general information pamphlet is concerned with the types of wastewater treatment systems, the need for further treatment, and advanced methods of treating waste. Current methods are described, illustrated and evaluated. Pollution problems from oxygen-demanding wastes, disease-causing agents, plant nutrients, synthetic chemicals, inorganic…

Citizen action to stop the disposal of taconite tailings into Lake Superior was unsuccessful when the courts settled in the favor of industry. Although citizen research revealed a form of asbestos, as well as other toxic chemicals in the discharged wastes, company representatives stated that there were no health hazards. (MA)

Presents results of an Environmental Protection Agency survey aimed at detecting and quantifying the presence of organic chemicals in U.S. drinking water supplies. The studies have turned up some surprising contaminants such as nicotine and vinyl chloride. (Author/GS)

An evaluation of the use of the parameters currently being used to design and operate the activated sludge process is presented. The advantages and disadvantages for the use of each parameter are discussed. (MR)

The most frequent testing required under the Safe Drinking Water Act of 1974 is for turbidity and coliform. Free chlorine residual testing can be substituted for part of the coliform requirement. Described are chemical procedures for performing this test. References are given. (Author/MA)

Solutions are offered for some of the common problems operators and managers of small water utilities are having with regard to the Safe Drinking Water Act. (BB)

Reviews growing concern about the quality of tapwater as a source of drinking water. Investigates the preferences of people for tapwater, filtered tapwater, and commercially bottled water, before and after a taste test. Results indicate a preference for bottled water before the taste test and a preference for filtered water after tasting. Contains…

Outdoor recreationists are at risk for developing giardia infection from drinking contaminated stream water. Giardia is the most common human parasite found in contaminated water that causes gastrointestinal illness. Describes medical treatment and ways of preventing infection through water treatment, including heat, filtration, and chemical…

Explains that there are new compounds to identify and new health threats from known byproducts in the switch from chlorine to alternative disinfectants in drinking water utilities. (Author/MM)

The environmental significance of acid rain on water systems of different buffer capacities is discussed. The most prevalent natural buffer system is created by the equilibrium between carbonate ions and carbon dioxide.

The availability of abundant water resources in the Upper Midwest of the United States is nullified by their contamination through heavy commercial and industrial activities. Scientists have taken the responsibility of detecting the water quality of these resources through remote-sensing satellites to develop a wide-ranging water purification plan…

Sustainable planning is a powerful tool in creating campus facilities that are environmentally, economically, and academically beneficial. As interconnected communities, college campuses provide an excellent model for sustainable intervention strategies. The University of British Columbia and the City University of New York's Lehman College have…