Illustrates difficulties in measuring long term changes in water temperature and content of dissolved oxygen, inorganic ions, radiation, pesticides, and trash and debris by reference to selected U. S. river systems. Concludes that observations to detect polluters may not provide data for assessing trends and trend reversals. (AL)

Describes an investigation which introduces the mathematical principles of stream hydraulics and fluvial sediment in a practical context. The investigation has four stages: defining hydrology of the stream; defining channel hydraulics in a study reach; measuring grain size; and calculating transportable grain size and comparing measure stream-bed…

Discussed is the biotic indexing of water quality and its application to A-level field work with reference to the Trent Biotic Index and Chandler Score system. These indices are related to the classification of water quality used by the Department of the Environment. Interpretations and limitations of the indices are discussed. (Author/DS)

The study reported on here determines temperature, salinity, and current data, and surveys complex interactions between the thermal plume and the Delaware River. (BB)

Discusses legislation currently under consideration that sets standards for the amount of radon, aluminum, and arsenic allowable in drinking water. Considers the economic impact of the legislation and traces the status of the Safe Drinking Water Act Regulations from 1989-92. (MDH)

Describes a program centered around water and water quality in which a series of stories are used to build a complete picture of the students local surroundings. The program incorporates students' personal experiences, imagination, and listening skills as guiding principles for the stories. (MDH)

Describes a program evaluation of the Rouge Education Project (REP), a school-based environmental education program that uses water monitoring, telecommunications, and student actions to improve water quality. Reports that results indicated that the REP met its goals of increasing awareness and concern about the Rouge River and developing a…

This teacher's guide presents 12 hands-on laboratory activities for high school science classes that cover the environmental issue of water resources in California. The activities are separated into three sections. Five activities in the section on water quality address the topics of groundwater, water hardness, bottled water, water purity, and…

This teacher guide and student workbook set presents two learning activities, designed for fifth through ninth grade students, that concentrate on nutrients in the Great Lakes. In activity A, students simulate aquatic habitats using lake water and goldfish in glass jars and observe the effects of nutrient loading and nutrient limitation on aquatic…

This booklet integrates science, history, and environmental education to help students acquire a basic understanding of the importance of the Great Lakes located in the United States. The packet also contains a Great Lakes Basin resource map and a sand dune poster. These materials introduce students to a brief history of the lakes, the diversity…

Proper installation, inspection, operation, maintenance, repair and management of small water systems have a significant impact on the operation and maintenance cost and effectiveness of the systems. The objective of this manual is to provide small water system operators with the knowledge and skills required to operate and maintain these systems…

This military-developed text contains the second section of a four-part course to train environmental support specialists. Covered in the individual course blocks are operative principles of water treatment plants (principles of water treatment plants, the clarification process, water systems filters, chemical disinfection, taste and odor control,…

This military-developed text contains the third section of a four-part course to train environmental support specialists. Covered in the individual sections are field sanitation, classes and sources of waste, composition and characteristics of sewage, principles of sewage treatment, primary waste treatment, secondary waste treatment, tertiary…