EP 1110-1-27
27 Jan 00
a. Definitions.
(1) EM 1110-1-4000 provides definitions for terms in the following topical areas:
Drilling and well installation plan/drilling plan.
Field activity (FA).
Field drilling organization (FDO).
Geotechnical data quality management.
Hazardous and/or toxic waste.
Well redevelopment/rehabilitation.
Screened interval.
Site Safety and Health Plan (SSHP).
Well development.
(2) Additional industry (e.g., National Groundwater Association, American Water Works
Association (AWWA) Research Foundation, American Society for Testing and Materials (ASTM)) and
international sources of definitions were used in preparation of this pamphlet. Several relevant documents
provide lists of definitions specific to the O&M of wells, particularly Borch, Smith, and Noble (1993),
Cullimore (1993), Driscoll (1986), Helweg, Scott, and Scalmanini (1983), Smith (1992), and Alford and
Cullimore (1999). ASTM Standard Guides cited herein (e.g., D 5978, Standard Guide for Maintenance
and Rehabilitation of Ground-Water Monitoring Wells) also provide definitions of specific terms used.
(3) Some technical terms have come to be commonly used in specific ways in well maintenance
activities and are frequently used in this pamphlet. Most of these relate to causes of problems. Others are
used in specific ways in this pamphlet and are defined in Appendix B.
1-8. Basis
The basis for the information and recommendations contained in this pamphlet is experience in actual
operations. Relevant case history information is published in Leach et al. (1991); Smith (1995); and
Alford and Cullimore (1999).
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