This article is part two in a series. It builds upon the first article and demonstrates, in a step-by-step fashion, the simplicity of using Caldwell-Lawrence diagrams to determine the amount of conditioning chemicals required to produce protective waters. (Author/MA)

This six-chapter handbook is concerned with the proper care and maintenance of microorganisms recovered from water and wastewater samples. These microorganisms must be cultured and identified to determine not only what kinds of cells were present in the original sample, but also what concentrations they appeared in. The skills covered are basic to…

This course is designed for those requiring an introduction to instruments commonly used in water pollution analyses. Examples are: pH, conductivity, dissolved oxygen meters, spectrophotometers, turbidimeters, carbon analyzer, and gas chromatographs. Students should have a basic knowledge of analytical chemistry. (CO)

This training manual presents material on techniques and instrumentation used to develop data in field monitoring programs and related laboratory operations concerned with water quality and pollution monitoring. Topics include: collection and handling of samples; bacteriological, biological, and chemical field and laboratory methods; field…

This publication is an introductory guide to the identification of Chironomid (Midge) larvae. The larvae of these small flies are an important link in the food chain between algae and microinvertebrates. As a family, the larvae exhibit a wide range of tolerance to environmental factors such as amounts and types of pollutants. Much of this…

This guide was developed by the United States Environmental Protection Agency (EPA) as a taxonomic reference for the identification of diatoms. The taxonomic information included consists of a generic key to the common genera of diatoms, a section illustrating 164 diatom species representing 43 common genera found at the Water Pollution…

This document is an instructional module package prepared in objective form for use by an instructor familiar with the basic concepts of biology related to water/wastewater technology. Included are objectives, instructor guides, student handouts, and transparency masters. The module considers organisms and their relationship, cell structures,…

This instructor's manual presents material on basic bacteriological laboratory procedures as required by Federal Register Water Quality Guidelines. Course topics include: characteristics, occurrences, and significance of bacterial indicators of pollution; bacteriological water quality standards and criteria; collection and handling of samples;…

This manual presents a procedure for the design of land treatment systems. Slow rate, rapid infiltration, and overland flow processes for the treatment of municipal wastewaters are given emphasis. The basic unit operations and unit processes are discussed in detail, and the design concepts and criteria are presented. The manual includes design…

Presents a literature review of the nature and analysis of chemical species in water, covering publications of 1976-77. This review is concerned with inorganics, and it covers: (1) electrochemical analysis; (2) spectroscopy; (3) neutron activation, radiochemical analysis, and isotope dilution. A list of 262 references is also presented. (HM)

Presents a literature review of the nature and analysis of chemical species in water, covering publications of 1967-77. This review is concerned with water characteristics. A list of 49 references is also presented. (HM)

Described is a presentation and learning session on groundwater, which is intended to educate advisory groups interested in improving water quality decision making. Among the areas addressed are the importance of groundwater, sources of contamination, and groundwater pollution control programs. These materials are part of the Working for Clean…

This document is a lecture/laboratory manual dealing with the analysis of selected inorganic pollutants. The manual is an instructional aid for classroom presentations to those with little or no experience in the field, but having one year (or equivalent) of college level inorganic chemistry and having basic laboratory skills. Topics include:…

This document is a lecture/laboratory manual dealing with the analysis of selected organic pollutants. It is intended for use by those having little or no experience in the field, but having one year (or equivalent) of college organic chemistry, and having basic laboratory skills (volumetric glassware, titration, analytical and trip balances).…

This laboratory manual presents information and techniques dealing with aquatic microbiology as it relates to environmental health science, sanitary engineering, and environmental microbiology. The contents are divided into three categories: (1) ecological and physiological considerations; (2) public health aspects; and (3)microbiology of water…