SEWAGE DEPARTMENT TRAINING PROGRAM
How to Build an At-Grade Sewage Disposal System
IMPORTANT POINTS
- Do NOT scarify when the soil has a high moisture content.
- Do NOT scarify when the soil is frozen.
- Scarify with the contour.
- Scarification grooves may be up to 6 inches deep.
- Scarify an area bigger than the completed at-grade mound.