The Berland Gravel Pit demonstrates that
- Soil chemistry data indicated that there were no concerns with surface pH, EC or SAR.
- Soluble ions were elevated at the surface indicating additional nutrients were present for plant use.
The ANC Mill Site Reclamation experiment showed that
- Pre and post application sampling indicated that any changes in pH, C:N ratio, EC, soluble Na, and SAR were not significant in terms of soil quality.
The Sludge Utilization in Alpine Reclamation experiment showed that
- The sludge amendment resulted in excellent and uniform grass establishment.
The Sludge Utilization for Hydrocarbon Remediation experiment showed that
- Primary sampling locations met AB Tier 1 criteria for F1 and F4 petroleum hydrocarbons (PHC).
- Significant reductions occurred in the F2 and F3 PHC fractions however AB Tier 1 criteria were still exceeded.
The Disturbed Forest/Reclaimed Road Trial experiment
- There were no real differences in tree performance with summer or winter sludge application.
- Site treatment prior to sludge application can have a major influence on the ability of sludge to have a positive impact on vegetative performance.