Analysis of Minimally Disruptive Brief Pumping Tests of Domestic Wells Completed in Bedrock in the Appalachian Plateau of New York
by Allan D. Randall and Kate Klusman
U.S. GEOLOGICAL SURVEY
Open-File Report 2004-1276
ABSTRACT
One normal episode of pump operation in domestic wells
drilled into bedrock in New York typically lasts
about 1 minute and lowers the water level about 1 meter.
Measurement of water levels in the pumped well before and
during pumping and recovery can be completed in 2 to 3
hours and requires negligible disturbance of the well, so can
be easily arranged. Such a test involves less turbulent flow or
well loss than longer tests, and can be conveniently analyzed
by a new computer program. Tests of 25 wells completed in
shale, siltstone, or sandstone in the Appalachian Plateau of
New York have been analyzed by this program and by two
alternative methods, all of which yield similar transmissivity
values and are equally insensitive to storativity.
Citation: , 2004, Analysis of Minimally Disruptive Brief Pumping Tests of Domestic Wells Completed in Bedrock in the Appalachian Plateau of New York: U.S. Geological Survey Open-File Report 2004-1276, 8 p.; online only.
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