1. Scope

1.1 This guide covers the use of existing wells for environmental site characterization and monitoring. It covers the following major topics: criteria for determining the suitability of existing wells for hydrogeologic characterization and ground-water quality monitoring, types of data required to document the suitability of an existing well, and the relative advantages and disadvantages of existing large- and small-capacity wells.

1.2 This guide should be used in conjunction with Guide D 5730, that provides a general approach for environmental site investigations.

1.3 This guide does not specifically address design and construction of new monitoring or supply wells. Refer to Practices D 5092 and D 5787.

1.4 This guide does not specifically address ground-water sampling procedures. Refer to Guide D 5903.

1.5 The values stated in SI units are to be regarded as the standard. However, dimensions of materials used in the water well industry are given in inch-pound (English) units by convention, therefore, inch-pound units are used where necessary in this Guide.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D653 Terminology Relating to Soil, Rock, and Contained Fluids

D4750 Test Method for Determining Subsurface Liquid Levels in a Borehole or Monitoring Well (Observation Well)

D5092 Practice for Design and Installation of Ground Water Monitoring Wells

D5254 Practice for Minimum Set of Data Elements to Identify a Ground-Water Site

D5408 Guide for Set of Data Elements to Describe a Groundwater Site; Part One--Additional Identification Descriptors

D5409 Guide for Set of Data Elements to Describe a Ground-Water Site; Part Two--Physical Descriptors

D5410 Guide for Set of Data Elements to Describe a Ground-Water Site;Part Three--Usage Descriptors

D5474 Guide for Selection of Data Elements for Groundwater Investigations

D5521 Guide for Development of Ground-Water Monitoring Wells in Granular Aquifers

D5730 Guide for Site Characterization for Environmental Purposes With Emphasis on Soil, Rock, the Vadose Zone and Ground Water

D5753 Guide for Planning and Conducting Borehole Geophysical Logging

D5787 Practice for Monitoring Well Protection

D5903 Guide for Planning and Preparing for a Groundwater Sampling Event

D5978 Guide for Maintenance and Rehabilitation of Ground-Water Monitoring Wells

D5979 Guide for Conceptualization and Characterization of Groundwater Systems

Keywords

environmental site characterization; field investigations; groundwater; hydrologic investigations; monitoring wells; sampling; site characterization; site investigations; subsurface investigations: Documents/documentation--water applications; Environmental site assessment (ESA)--water; Ground-water monitoring/sampling; Wells;

ICS Code

ICS Number Code 13.020.10 (Environmental management)

DOI: 10.1520/D5980-96E01

ASTM International is a member of CrossRef.