Title:
Analysis of Complex Pumping Interactions During an Aquifer Test Conducted at a Well Field in the Coastal Plain Near Augusta, Georgia, October 2009

dc.contributor.author Gonthier, Gerard J. en_US
dc.contributor.corporatename Geological Survey (U.S.) en_US
dc.contributor.corporatename USGS Georgia Water Science Center en_US
dc.contributor.editor Carroll, G. Denise en_US
dc.date.accessioned 2013-01-28T20:42:52Z
dc.date.available 2013-01-28T20:42:52Z
dc.date.issued 2011-04
dc.description Proceedings of the 2011 Georgia Water Resources Conference, April 11, 12, and 13, 2011, Athens, Georgia. en_US
dc.description.abstract A 24-hour aquifer test was conducted in Well Field 2 near Augusta, Georgia, October 21–22, 2009, to characterize the hydraulic properties of the Midville aquifer system. The selected well was pumped at a rate of 684 gallons per minute. At the initiation of aquifer-test pumping, water levels in each of eight wells monitored for the test were still recovering from the well-field production. Because water levels had not stabilized, data analyses were needed to account for the ongoing recovery. Hydraulic properties of the Midville aquifer system were estimated by an approach based on the Theis model and superposition. The Midville aquifer system was modeled as a Theis aquifer. The principle of superposition was used to sum the effects of multiple pumping and recovery events from a single pumped well and to sum the effects of all pumped wells as the estimated total drawdown at a monitored well. Simulated drawdown at each monitored well was determined by using a spreadsheet (SUMTheis) function of aquifer transmissivity and storativity. Simulated drawdown values were transformed into simulated water levels, accounting for longterm water-level trends. The transmissivity and storativity values that were used to calibrate the simulated water levels to measured water levels (roughly 4,000 square feet per day and 2E-04, respectively) provide estimates of the transmissivity and storativity of the Midville aquifer system in the vicinity of Well Field 2. The approach used in this study can be applied to similar well-field tests in which incomplete drawdown recovery or other known pumping is evident. en_US
dc.description.sponsorship Sponsored by: Georgia Environmental Protection Division U.S. Geological Survey, Georgia Water Science Center U.S. Department of Agriculture, Natural Resources Conservation Service Georgia Institute of Technology, Georgia Water Resources Institute The University of Georgia, Water Resources Faculty en_US
dc.description.statementofresponsibility This book was published by Warnell School of Forestry and Natural Resources, The University of Georgia, Athens, Georgia 30602-2152. The views and statements advanced in this publication are solely those of the authors and do not represent official views or policies of The University of Georgia, the U.S. Geological Survey, the Georgia Water Research Institute as authorized by the Water Research Institutes Authorization Act of 1990 (P.L. 101-307) or the other conference sponsors. en_US
dc.identifier.isbn 0-9794100-2-9
dc.identifier.uri http://hdl.handle.net/1853/46023
dc.language.iso en_US en_US
dc.publisher Georgia Institute of Technology en_US
dc.publisher.original Warnell School of Forestry and Natural Resources, The University of Georgia en_US
dc.relation.ispartofseries GWRI2011. Groundwater en_US
dc.subject Water resources management en_US
dc.subject Midville Aquifer en_US
dc.subject 24-hour aquifer test en_US
dc.subject Hydraulic models en_US
dc.title Analysis of Complex Pumping Interactions During an Aquifer Test Conducted at a Well Field in the Coastal Plain Near Augusta, Georgia, October 2009 en_US
dc.type Text
dc.type.genre Proceedings
dspace.entity.type Publication
local.contributor.corporatename Georgia Water Resources Institute
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
local.relation.ispartofseries Georgia Water Resources Conference
relation.isOrgUnitOfPublication 8873b408-9aff-48cc-ae3c-a3d1daf89a98
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
relation.isSeriesOfPublication e0bfffc9-c85a-4095-b626-c25ee130a2f3
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
3.3.1_Gonthier_20.pdf
Size:
765.08 KB
Format:
Adobe Portable Document Format
Description: