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AASHTO R 21:1996 (R2009)

AASHTO R 21:1996 (R2009) Practice For Drilling For Subsurface Investigations-Unexpectedly Encountering Suspected Hazardous Material Assists in protecting drillers in the event they unexpectedly Encounter suspected hazardous materials while performing subsurface investigations.

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Table of Contents

1.SCOPE
2.REFERENCEDDOCUMENTS
3.SIGNIFICANCEANDUSE
4.HAZARDOUSMATERIALIDENTIFICATION
5.MINIMIZINGCONTAMINATIONRISK
6.PROCEDURE
7.KEYWORDS

Abstract

Assists in protecting drillers in the event they unexpectedly Encounter suspected hazardous materials while performing subsurface investigations.

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