Aquifer Test Quick Tour

Aquifer Test Database Advantages

Aquifer Test is designed to automate the most common tasks that hydrogeologists and other water supply professionals typically encounter when planning and analyzing the results of an aquifer test. The new design for version 3.0 lets you more efficiently manage all information from your aquifer test and perform more analyses in less time and with less effort.

The Project Database

Aquifer Test employs a project-oriented data management system that is built using a Microsoft Access relational database. The project-oriented data structure is designed to accommodate the user who is involved in on-going projects where multiple pumping tests are being evaluated at a site or multiple sites. The project-oriented data structure has three separate data classes:

1. Wells
2. Pumping Tests
3. Slug Tests

This data structure is depicted in the Project Tree as shown in the following figure.

Wells Data

The Wells data includes static information for each well at the site including:

• Name
• X-Coordinate
• Y-Coordinate
• Elevation
• Benchmark
• Well casing radius
• Effective well radius
• Screen length

This information is classified as static information because it is not likely to change from one pumping test to another. The advantage of a project-oriented data structure is that it gives you the flexibility to use the same well in more than one pumping test (just like you would do in the field) without re-entering the static information or creating a new data file.

Pumping Tests Data

The Pumping Test Data Class contains all the information related to the selected pumping test(s). Each pumping test has two separate subclasses of information:

1. Data
2. Analysis

The Data subclass contains the following information:

• Pumping well name
• Discharge rate (constant or time-varying)
• Observation well(s) name(s)
• Static water level
• Depth from water level to bottom of well screen
• Time vs. water level at the selected observation well(s)

Note: The distance from the pumping well to the observation well(s) is calculated from the well coordinates.

The Analysis subclass contains the graph and results of the selected analysis method(s) for the active pumping test.

The powerful advantage of this data structure is the flexibility it offers for easily manipulating and interpreting the data and comparing several different analysis methods for the same data set.

Slug Tests Data

The Slug Test Data Class is similar to the Pumping Test Data Class in that it contains all the information related to the selected slug test(s). However, since each slug test involves only a single well, it requires only a single subclass of information for each analysis. The Analysis subclass includes the following information

• Well name
• Depth to static water level
• Depth from water level to bottom of well screen
• Time vs. water level
• Analysis graph and results

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