{"id":1846,"date":"2026-02-14T04:28:59","date_gmt":"2026-02-14T04:28:59","guid":{"rendered":"https:\/\/books.gw-project.org\/an-introduction-to-hydraulic-testing-in-hydrogeology\/chapter\/ch096-xhtml\/"},"modified":"2026-08-01T11:52:23","modified_gmt":"2026-08-01T11:52:23","slug":"box-7-aquiferwin32-v6","status":"publish","type":"chapter","link":"https:\/\/books.gw-project.org\/an-introduction-to-hydraulic-testing-in-hydrogeology\/chapter\/box-7-aquiferwin32-v6\/","title":{"raw":"Box 7 AquiferWin32\u00a0V6","rendered":"Box 7 AquiferWin32\u00a0V6"},"content":{"raw":"
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\r\n\r\nThe aquifer test software created by Environmental Simulations, Inc. is AquiferWin32\u00a0<\/sup>V6 www.groundwatermodels.com<\/a>\u2197). This software includes components used to analyze pumping, slug test, and well performance data, and it provides analytic element models to produce theoretical aquifer tests results including contour maps and hydrographs. AquiferWin32\u00a0<\/sup>V6 provides analyses using solutions for confined, leaky confined, unconfined, and fractured rock aquifers. It also includes methods to represent partial penetration, variable pumping rates, well bore storage and delayed yield. The analytical equations represented in AqufierWin32\u00a0<\/sup>V6 are shown in Figure Box\u00a07\u20111.\r\n\r\n<\/div>\r\n
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\r\n\r\nFigure Box\u00a07\u20111 \u2011<\/strong> Analytical models supported in the AquiferWin32<\/sup>\u00a0V6 software. Full references are provided in the reference section of this book. The pumping test simulator allows the user to mathematically pump a well in a user determined aquifer type and generate the drawdown at monitoring wells located at various radial distances from the pumping well under transient conditions (from https:\/\/www.groundwatermodels.com<\/u><\/a>\u2197; Environmental Simulations, Inc., 2019).\r\n\r\n<\/div><\/blockquote>\r\n<\/div>\r\n
\r\n\r\nThe aquifer test analyses use both automatic computation and manual curve matching methods. The automatic approach uses the Marquardt (modified Gauss\u2011Newton) nonlinear least\u2011squares technique to generate the best statistical match between a selected type curve (e.g., Theis Equation, Hantush Equation) and the hydraulic test drawdown versus time data. The user\u2019s manual states that the AquiferWin32\u00a0<\/sup>V6 approach to analyzing hydraulic testing data is designed to be like the visual curve matching techniques described in typical hydrogeology texts and in this book. It encourages visual adjustment of automatically matched curves using up and down arrows in the program or the computer mouse. Derivative analyses can also be performed. The user\u2019s manual describes the methods to calculate the derivative. Automatic and visual curve matching of the derivative curves are available.\r\n\r\n<\/div>\r\n
\r\n\r\nExamples of hydraulic test data matching the Theis (1935) and Hantush (1960) analytical models are presented in Figures Box\u00a07\u20112 and Box\u00a07\u20113.\r\n\r\n<\/div>\r\n
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\r\n\r\nFigure Box\u00a07\u20112 \u2011<\/strong> Example of drawdown time data (red x) partially shown in the left\u2011hand column with the Theis type curve (blue line) in the AquiferWin32<\/sup> V6 software. a) The data plotted on the type curve graph before curve matching. b) Data matched by automatic methods and manual adjustment (from Environmental Simulations, Inc., 2019).\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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\r\n
\r\n\r\nFigure Box\u00a07\u20113 \u2011<\/strong> Example of time\u2011drawdown data (red x) partially shown in the left\u2011hand column matched to Hantush (1960) type curves using the AquiferWin32<\/sup>\u00a0V6 software. Values of T<\/em>, S<\/em> and \u03b2<\/em> are derived. (Environmental Simulations, Inc., 2019).\r\n\r\n<\/div>\r\n<\/div>\r\n
\r\n\r\nAnother feature of AquiferWin32\u00a0<\/sup>V6 is simulation of aquifer tests results. This requires values of T<\/em> and S<\/em> and other related parameters (e.g., K\u2019<\/em>, \u03b2<\/em>), as well as pumping and observation well construction information including the degree of penetration. The program produces a contour map of drawdown for a given pumping rate and time. The time\u2011drawdown curves for an observation well placed at any radial distance from the pumping well can be generated.\r\n\r\n<\/div>\r\n
\r\n\r\nThe software also includes groundwater modeling capabilities using an analytic element flow model in which analytical equations and image wells can be used to model steady\u2011state groundwater flow. Analytical element modeling is discussed by Haitjema (1995).\r\n\r\n<\/div>\r\n
\r\n\r\nReturn to where text linked to Box\u00a07<\/a>\r\n\r\n<\/div>\r\n<\/div>\r\n
<\/div>\r\n<\/div>\r\n<\/div>","rendered":"
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The aquifer test software created by Environmental Simulations, Inc. is AquiferWin32\u00a0<\/sup>V6 www.groundwatermodels.com<\/a>\u2197). This software includes components used to analyze pumping, slug test, and well performance data, and it provides analytic element models to produce theoretical aquifer tests results including contour maps and hydrographs. AquiferWin32\u00a0<\/sup>V6 provides analyses using solutions for confined, leaky confined, unconfined, and fractured rock aquifers. It also includes methods to represent partial penetration, variable pumping rates, well bore storage and delayed yield. The analytical equations represented in AqufierWin32\u00a0<\/sup>V6 are shown in Figure Box\u00a07\u20111.<\/p>\n<\/div>\n

\n

\"\"<\/p>\n<\/div>\n

\n
\n
\n

Figure Box\u00a07\u20111 \u2011<\/strong> Analytical models supported in the AquiferWin32<\/sup>\u00a0V6 software. Full references are provided in the reference section of this book. The pumping test simulator allows the user to mathematically pump a well in a user determined aquifer type and generate the drawdown at monitoring wells located at various radial distances from the pumping well under transient conditions (from https:\/\/www.groundwatermodels.com<\/u><\/a>\u2197; Environmental Simulations, Inc., 2019).<\/p>\n<\/div>\n<\/blockquote>\n<\/div>\n

\n

The aquifer test analyses use both automatic computation and manual curve matching methods. The automatic approach uses the Marquardt (modified Gauss\u2011Newton) nonlinear least\u2011squares technique to generate the best statistical match between a selected type curve (e.g., Theis Equation, Hantush Equation) and the hydraulic test drawdown versus time data. The user\u2019s manual states that the AquiferWin32\u00a0<\/sup>V6 approach to analyzing hydraulic testing data is designed to be like the visual curve matching techniques described in typical hydrogeology texts and in this book. It encourages visual adjustment of automatically matched curves using up and down arrows in the program or the computer mouse. Derivative analyses can also be performed. The user\u2019s manual describes the methods to calculate the derivative. Automatic and visual curve matching of the derivative curves are available.<\/p>\n<\/div>\n

\n

Examples of hydraulic test data matching the Theis (1935) and Hantush (1960) analytical models are presented in Figures Box\u00a07\u20112 and Box\u00a07\u20113.<\/p>\n<\/div>\n

\n

\"\"<\/p>\n

\n
\n
\n

Figure Box\u00a07\u20112 \u2011<\/strong> Example of drawdown time data (red x) partially shown in the left\u2011hand column with the Theis type curve (blue line) in the AquiferWin32<\/sup> V6 software. a) The data plotted on the type curve graph before curve matching. b) Data matched by automatic methods and manual adjustment (from Environmental Simulations, Inc., 2019).<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

\n

\"\"<\/p>\n<\/div>\n

\n
\n

Figure Box\u00a07\u20113 \u2011<\/strong> Example of time\u2011drawdown data (red x) partially shown in the left\u2011hand column matched to Hantush (1960) type curves using the AquiferWin32<\/sup>\u00a0V6 software. Values of T<\/em>, S<\/em> and \u03b2<\/em> are derived. (Environmental Simulations, Inc., 2019).<\/p>\n<\/div>\n<\/div>\n

\n

Another feature of AquiferWin32\u00a0<\/sup>V6 is simulation of aquifer tests results. This requires values of T<\/em> and S<\/em> and other related parameters (e.g., K\u2019<\/em>, \u03b2<\/em>), as well as pumping and observation well construction information including the degree of penetration. The program produces a contour map of drawdown for a given pumping rate and time. The time\u2011drawdown curves for an observation well placed at any radial distance from the pumping well can be generated.<\/p>\n<\/div>\n

\n

The software also includes groundwater modeling capabilities using an analytic element flow model in which analytical equations and image wells can be used to model steady\u2011state groundwater flow. Analytical element modeling is discussed by Haitjema (1995).<\/p>\n<\/div>\n

\n

Return to where text linked to Box\u00a07<\/a><\/p>\n<\/div>\n<\/div>\n

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