This technical note provides general guidance on how to install and use piezometers and water-table wells to investigate soil water regimes under conditions commonly encountered in Soil Survey and hydropedology studies. Piezometers and water-table wells installed using these procedures act as lined and unlined bore holes, respectively (Soil Survey Division Staff 1993, page 93), usually at depths that desaturate seasonally. Standard guidelines (Sections 3 and 5) are presented for use in soils where hand augering is practical and saturated hydraulic conductivities are moderate or higher. Alternative methods (Section 6) are provided for problem soils where the standard procedures are impractical or problematic. Limitations: Procedures described here are appropriate only to monitor changes in water level and hydraulic head. They are not intended for water quality sampling, water supply, or determination of saturated hydraulic conductivity (Ksat).

Interest in the use and development of our Nation's surface - and ground-water resources has increased significantly during the past 50 years. This work discusses field techniques for estimating water fluxes.

The most recent "comprehensive" book on the subject of ground water sampling was written by Dr. Barcelona in 1986 and is still being sold today. It does not, however, include soil water sampling and analytic techniques. A considerable amount of research has since been undertaken dealing with ground water sampling equipment and techniques, making an up-to-date text a valuable commodity. The scope and detail of this book is much broader and more inclusive than previous efforts on the subject, and it provides the latest results of research in the field. The book presents a comprehensive introduction to ground water monitoring, placing monitoring in context with respective regulatory programs. It offers a unique, detailed description of the installation and operation of soil water samplers (pressure-vacuum and zero tension). It provides the most comprehensive, step-by-step guidance on monitoring well installation. The discussion of field instrumentation includes theory and operation of equipment used for obtaining static water levels, temperature, redox, pH, dissolved oxygen, specific conductance, turbidity, and alkalinity. Equipment and techniques used to obtain ground water samples are described, and several valuable checklists are included. Quality assurance and control (QA/QC) are addressed in terms that can be easily comprehended and utilized. The book also provides an excellent introduction on how ground water samples are prepared and analyzed in a laboratory. It is difficult to overestimate the quality and utility of this book. More than 46 photographs, an abundance of tables and diagrams, and a well-written style make even the most complex topic understandable. This extremely practical book should serve as the standard for ensuring ground water data reliability and comparability.

The most recent "comprehensive" book on the subject of ground water sampling was written by Dr. Barcelona in 1986 and is still being sold today. It does not, however, include soil water sampling and analytic techniques. A considerable amount of research has since been undertaken dealing with ground water sampling equipment and techniques, making an up-to-date text a valuable commodity. The scope and detail of this book is much broader and more inclusive than previous efforts on the subject, and it provides the latest results of research in the field. The book presents a comprehensive introduction to ground water monitoring, placing monitoring in context with respective regulatory programs. It offers a unique, detailed description of the installation and operation of soil water samplers (pressure-vacuum and zero tension). It provides the most comprehensive, step-by-step guidance on monitoring well installation. The discussion of field instrumentation includes theory and operation of equipment used for obtaining static water levels, temperature, redox, pH, dissolved oxygen, specific conductance, turbidity, and alkalinity. Equipment and techniques used to obtain ground water samples are described, and several valuable checklists are included. Quality assurance and control (QA/QC) are addressed in terms that can be easily comprehended and utilized. The book also provides an excellent introduction on how ground water samples are prepared and analyzed in a laboratory. It is difficult to overestimate the quality and utility of this book. More than 46 photographs, an abundance of tables and diagrams, and a well-written style make even the most complex topic understandable. This extremely practical book should serve as the standard for ensuring ground water data reliability and comparability.

Provides information on where to go to find detailed guidance on how to use these techniques. Covers: remote sensing & surface geophysical methods; drilling & solids sampling methods; geophysical logging of boreholes; aquifer test methods; ground water sampling methods; Vadose Zone (VZ) hydrologic properties: water state, infiltration, conductivity, & flux; VZ water budget characterization methods; VZ soil-solute/gas sampling & monitoring methods; & chemical field screening & analytical methods. Charts, tables, graphs & drawings.

The Soil Survey Manual, USDA Handbook No. 18, provides the major principles and practices needed for making and using soil surveys and for assembling and using related data. The term "soil survey" is used here to encompass the process of mapping, describing, classifying, and interpreting natural three-dimensional bodies of soil on the landscape. This work is performed by the National Cooperative Soil Survey in the United States and by other similar organizations worldwide. The Manual provides guidance, methodology, and terminology for conducting a soil survey but does not necessarily convey policies and protocols required to administer soil survey operations. The soil bodies contain a sequence of identifiable horizons and layers that occur in repeating patterns in the landscape as a result of the factors of soil formation as described by Dokuchaev (1883) and Jenny (1941).