July Software Spotlight:

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$100

AquiferTest Pro is an easy-to-use pumping test and slug/bail test analysis and plotting package and represents our most sophisticated version yet.  AquiferTest Pro includes 6 powerful forward / predictive pumping test solution methods that are extremely versatile and offer a new level of analyzing your aquifer testing data.

Take a minute to examine the information below as we are confident you'll see the added value in AquiferTest Pro!

Main Advantages of AquiferTest Pro:

• Data Logger Import Wizard (import virtually any datalogger file)

• Well Import Wizard (import geometry & locations)

• Customize Graphs (axes, legends, data symbols, fonts)

• Print Results with 6 Professional, Customizable Report Templates

• Export Analysis Graph to Graphics File (.bmp, .jpg)

• 18 Standard Solution Methods (confined, unconfined, leaky, fractured)

• 6 Advanced Forward / Predictive Solution Methods

What are Forward / Predictive Solution Methods?

Forward solutions, also known as predictive analyses, represent a new methodology for analyzing pumping test data.  Similar to standard solutions, predictive analyses allow you to calculate aquifer properties based on time-drawdown data collected from the field.  

Forward / predictive solution methods allow you to account for:

• Recharge and barrier boundary conditions (Stallman)

• Pumping well skin effects (Gringarten)

• Well bore storage (Papadopulos)

• Multiple pumping wells (Theis & Hantush-Jacob)  

AquiferTest Pro can accommodate multiple pumping wells and observation wells, plus it can deal with a much wider array of pumping test conditions.

Forward / predictive solution methods can also act as a predictive tool.  By entering aquifer properties and a pumping rate (constant or variable), you can use the new solution methods to predict drawdown over time at user-defined locations.  

Figure 1: Consider the following example in which time vs. drawdown data from two observation wells, OW11 and OW-12, is plotted against a Theis Forward solution curve.  

Two variable-rate pumping wells, PW1 and PW2, were active during the test (which caused the minor change in drawdown halfway through the test).

Figure 1: Click to enlarge

Figure 2: What would happen to the drawdown levels in the observation wells if pumping well PW1, was shut down?

The figure to the right clearly shows the decrease in drawdown in the observation wells as a result of deactivating PW1.

Figure 2: Click to enlarge

Figure 3: Finally what would happen to the drawdown levels in the observation wells if pumping well PW1, was re-activated halfway through the test?

The figure to the right clearly shows the increase in drawdown in the observation wells as a result of reactivating PW1 halfway through the test.

Figure 3: Click to enlarge

AquiferTest Pro is a quick and easy-to-use aquifer testing data analysis tool, that not only allows you to calculate aquifer properties from field data, but also to predict drawdown at various locations under user-specified conditions.  Welcome to the next level of pumping test analysis!

How Much Does AquiferTest Cost? 

(until August 2nd, 2002)

AquiferTest 3.5:

(Includes 18 Standard Solution Methods)

US$ 595

AquiferTest Pro 3.5:

(Includes 18 Standard & 6 Forward Solution Methods)

US$ 795

For more information, please visit our web page or contact us directly with questions: Tel: 519-746-1798; E-mail: sales@flowpath.com

We look forward to hearing from you!

Groundwater Modeling: Theory & Hands-on Applications

This three-day, two-evening course will cover the use of Visual MODFLOW and its applications to two- and three-dimensional ground water flow and contaminant transport problems. This is a hands-on course emphasizing practical applications of MODFLOW, MODPATH, and MT3D such as: evaluating remediation alternatives (e.g. pump-and-treat, funnel-and-gate, and trench-and-drain systems); simulating intrinsic remediation of groundwater plumes; delineating well capture zones; and identifying preferred flow and exposure pathways for human health and ecological risk assessment.  The topics in this course include the following;

• Background theory and applications of groundwater models

• Fundamental concepts and theory of MODFLOW, MODPATH, MT3D, RT3D, ZoneBudget and WinPEST

• Simulating multiple-aquifer systems with irregular layer elevations

• Evaluating and optimizing groundwater remediation systems

• Simulating natural attenuation processes

• Utilizing automated calibration tools

Advanced Groundwater Modeling: Applying Innovative Techniques and Avoiding Common Pitfalls

For more information on course content please click here to visit the web or contact us directly for more information.

The Açu Aquifer, with 25,000 km2, is one of the most important aquifers in Northeast Brazil, a region with secular water shortage problems. Currently the Açu Aquifer is exploited for municipal and industrial water supply, and for major irrigation projects.  Directly or indirectly around 450,000 people depend on the aquifer as well as a significant portion of the State economy.  Over the years some problems were identified such as overexploitation in some areas with excessive drawdown, as well as contamination from naturally occurring oil reserves.  A better understanding of the recharge and flow mechanisms throughout the aquifer is necessary to avoid or minimize such problems. 

WHI has been retained under the Northeast Brazil Groundwater Project – PROASNE, funded by the Canadian International Development Agency (CIDA) and managed by the Geological Survey of Canada, to assess the groundwater resources in that area.