Constant Head Permeameter Testing

The results are shown in the excel files below.

• Five trials were performed for each composition.
• The Fifth trial was removed due to faulty data collection.
• The geometric flow average was calculated for each sample. Using this data and the area of the bioretention site in question, the water retention time (days) for each of the 5 compositions was determined.
  • This data resulted in water retention times under 3 days.

Saturated hydraulic conductivity was calculated for all five samples by manipulating. Darcy's Law

The constant head permeameter testing provided three constants necessary for calculating hydraulic conductivity from Darcy's law

• h - constant head (mm)
• A - area of cores (mm^2)
• L - length of the core (mm)