ASTM-D6725 2010

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D6725-04(2010) Standard Practice for Direct Push Installation of Prepacked Screen Monitoring Wells in Unconsolidated Aquifers

Published By	Publication Date	Number of Pages
ASTM	2010	15

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Categories: 13.060.10 - Water of natural resources, ASTM

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Description

1.1 This practice is based on recognized methods by which direct push monitoring wells may be designed and installed for the purpose of detecting the presence or absence of a contaminant, and collecting representative groundwater quality data. The design standards and installation procedures herein are applicable to both detection and assessment monitoring programs for facilities.

1.2 The recommended monitoring well design, as presented in this practice, is based on the assumption that the objective of the program is to obtain representative groundwater information and water quality samples from aquifers. Monitoring wells constructed following this practice should produce relatively turbidity-free samples for granular aquifer materials ranging from gravels to silty sand. Strata having grain sizes smaller than the recommended design for the smallest diameter filter pack materials should be monitored by alternative monitoring well designs which are not addressed in this practice.

1.3 Direct push procedures are not applicable for monitoring well installation under all geologic and soil conditions (for example, installation in bedrock). Other rotary drilling procedures are available for penetration of these consolidated materials for well construction purposes (Guide D5092 ). Additionally, under some geologic conditions it may be appropriate to install monitoring wells without a filter pack (EPA 1991). Guide D6724 may be referred to for additional information on these and other methods for the direct push installation of groundwater monitoring wells.

1.4 The values stated in inch-pound units are to be regarded as standard. The values in parentheses are for information only.

1.5 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.

1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgement. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of the project’s many unique aspects. The word Standard in the title of this document means only that the document has been approved through the ASTM consensus process.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Summary of Practice Significance and Use
3	Site Characterization and Well Placement FIG. 1
4	Monitoring Well Construction Materials FIG. 2
5	FIG. 3
6	FIG. 4 FIG. 5 FIG. 6
7	FIG. 7 FIG. 8
8	FIG. 9 FIG. 10
9	Direct Push Methods FIG. 11
10	Monitoring Well Installation
12	Post Installation Activities FIG. 12
13	Monitoring Well Installation Report Keywords
14	REFERENCES FIG. 13

Additional information

Standard Title	D6725-04(2010) Standard Practice for Direct Push Installation of Prepacked Screen Monitoring Wells in Unconsolidated Aquifers
Published Code	ASTM
Publication Date	2010
Pages Count	15
ICS Codes	13.060.10 - Water of natural resources

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ASTM-D6725 2010

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