This page provides several relatively simple analysis tools developed by Environment Canterbury to assist with the assessment of environmental effects of groundwater use. In addition, it provides links to other useful sources of freely available analysis tools.
WQN10
Version 1.11 of the WQN10 program provides for an additional analysis option and allows the user more flexibility in specifying input parameters. The zip file contains updated copies of the executable, Fortran source and documentation together with sample input files.
WQN10 version 1.11 (zip 325 kB)
Drawdown.xls
Excel-based analysis of pumping induced drawdown using the Theis or Hantush-Jacob solutions.
Drawdown.xls (xls 113 kB)
Stream Depletion
Version 3
Stream Depletion Solutions Excel-based analysis of stream depletion effects due to pumping. This workbook incorporates the Theis/Jenkins, Hunt 1999, and Hunt 2003 solutions as well as irrigation efficiency.
Stream Depletion.xls (xls 533 kB)
Version 2
Excel-based analysis of stream depletion effects of intermittent pumping (updated to be compatible with Excel 2007).
Stream Depletion.xls (xls 389 kB)
Multiwel.for
Fortran program to analyse cumulative drawdown impacts resulting from simultaneous pumping of several wells.
Multiwel.zip (zip 251 kB)
Dispsolv
Procedures for Worst-Case Modelling Assessment of Contaminant Transport in Groundwater.
Dispsolv.zip (zip 216 kB)
Two Aquifer System
Excel-based analysis of pumping induced drawdown and volume distribution in a two aquifer system using the Hunt & Scott (2007) solution.
Two-aquifer System (xls 314 kB)
A PowerPoint presentation illustrating leaky aquifer behaviour together with the technical paper describing the derivation of the leaky aquifer solution.
View the PowerPoint presentation (ppt 2.29 MB)
Read the associated documentation:
Flow to a Well in a Two-Aquifer System (pdf 537 kB)
Helpful links
- Groundwater Analysis Tools [Excel macros for groundwater analysis] developed by Dr Bruce Hunt, Civil Engineering Department, University of Canterbury.
- Aquifer Test Guidelines (pdf 705 kB) - This report provides best practice guidelines for the design, analysis and reporting of aquifer tests and is a revision of 1998 Aquifer Test Guidelines.
Disclaimer
Environment Canterbury offer no warranty, expressed or implied, as to the accuracy or completeness of the material provided or referred to and are not obligated to provide the user with any support, consulting, training or assistance of any kind with regard to its use, operation, and performance nor to provide the user with any updates, revisions, new versions or "bug fixes". The user assumes all risk for any damages whatsoever resulting from loss of use, data, or profits arising in connection with the access, use, quality, or performance of this software.