Contents

23.1 Groundwater Hydrology - II

Head and Gradients

  • Determine gradient (magnitude and direction) from 3-wells

Storage

The mechanisms of storage are:

  • draining and filling of the pore space

  • compression/decompression of the water, and

  • compression/decompression of the solids

Estimating storage from mapped water levels

Equation(s) of Motion

  • Darcy’s Law and permeability

  • Measuring hydraulic conductivity

Scripts/Spreadsheets

  1. Find gradient from 3 wells Model1_Gradient.xls

  2. Find gradient from 3 wells Model1_Gradient.xlsx (xml extensions)

  3. Constant Head Permeameter Model2_CHPerm.xlsx (xml extensions)

  4. Falling Head Permeameter Model3_FHPerm.xls

  5. Falling Head Permeameter Model3_FHPerm.xlsx (xml extensions)

References

  1. Gupta pp. 133-151

  2. Basic Groundwater Hydrology - USGS WSP 2020

Section End