Techniques and Methods 1–A1
ABSTRACTA series of groundwater technical procedures documents (GWPDs) has been released by the U.S. Geological Survey, Water-Resources Discipline, for general use by the public. These technical procedures were written in response to the need for standardized technical procedures of many aspects of groundwater science, including site and measuring-point establishment, measurement of water levels, and measurement of well discharge. The techniques are described in the GWPDs in concise language and are accompanied by necessary figures and tables derived from cited manuals, reports, and other documents. Because a goal of this series of procedures is to remain current with the state of the science, and because procedures change over time, this report is released in an online format only. As new procedures are developed and released, they will be linked to this document. |
First posted April 22, 2011
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Cunningham, W.L., and Schalk, C.W., comps., 2011, Groundwater technical procedures of the U.S. Geological Survey:
U.S. Geological Survey Techniques and Methods 1–A1, 151 p.
(available only online at https://pubs.usgs.gov/tm/1a1/)
Abstract
Introduction
Purpose and Scope
Review and Revision
Technical Procedures
GWPD 1—Measuring water levels by use of a graduated steel tape
GWPD 2—Identifying a minimum set of data elements to establish a groundwater site
GWPD 3—Establishing a permanent measuring point and other reference marks
GWPD 4—Measuring water levels by use of an electric tape
GWPD 5—Documenting the location of a well
GWPD 6—Recognizing and removing debris from a well
GWPD 7—Estimating discharge from a naturally flowing well
GWPD 8—Estimating discharge from a pumped well by use of the trajectory free-fall or jet-flow method
GWPD 9—Recording minimum and maximum water levels
GWPD 10—Estimating discharge from a pumped well by use of a circular orifice weir
GWPD 11—Measuring well depth by use of a graduated steel tape
GWPD 12—Measuring water levels in a flowing well
GWPD 13—Measuring water levels by use of an air line
GWPD 14—Measuring continuous water levels by use of a float-activated recorder
GWPD 15—Obtaining permission to install, maintain, or use a well on private property
GWPD 16—Measuring water levels in wells and piezometers by use of a submersible pressure transducer
Acknowledgments
References Cited