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Photograph of USGS hydrologists and packers for well testing

Detailed Description

Photograph of USGS hydrologists Rob Rosman and Alex Fiore using packers for well testing at the former Naval Air Warfare Center, Trenton, New Jersey. This equipment is used to isolate borehole intervals in open wells for hydraulic testing of sections of subsurface formations exposed within the isolated section, and for water quality sampling from those sections. 

Sources/Usage

Public Domain.

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