This is a soil percolation and infiltration rate test procedure that I’ve research and developed for my internship project.
Testing Procedures
Soil percolation test
- Procedure
- Drill at least three holes with a diameter of 15 to 20 cm and a depth of 91 to 274 cm,
- Fill the holes with water,
- Then measure for the amount of water decreases within a period of time,
- Use the formula (Percolation = Amount of water (ml)Time taken (min)) to calculate for the percolation rate.
- Equipment
- Something to dig with
- Water
- Timer
- Measuring stick
- Standard for Effluent Percolation Rate (EPR)
- Poor soakage – 10 litre/m2/day
- Good soakage – 15 litre/m2/day
Soil infiltration test
- Procedure
- Fill a 30 by 20 cm container with soil and pressure it to make it compact like the ground
- Cut a 5 inch (127mm) PVC pipe into a 20 cm piece and make a 5 cm, a 10 cm, and a 15 cm mark on the inside of the pipe
- Then vertically bury 5 cm of the PVC pipe into the soil in the container
- Pour water into the buried PVC pipe then start the timer
- Then record the time when the water reaches each mark
- Equipment/materials
- 5 inch PVC pipe
- 30 x 20 cm container
- Soil
- Water
- Timer
- Notebook & Pen
- Marker
- Source
Water flowing through the filtration
- Procedure
- Start the timer when the first drop of water get to the filter in the second pit
- Stop the timer when the water comes out of the PVC pipe into the leach field
- Equipment
- Timer
- Notebook & Pen