| http://www.w3.org/ns/prov#value | - Hence, there is a need for a new pump design capable of the multipurpose operation suitable both for relatively large volume purging to enable rapid preparation of the bore hole prior to taking a sample, and for low volume flow sampling for delivering water samples that are not agitated, spun or otherwise disturbed from the natural state of the water as it existed in the undisturbed well hole.
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