| Acronym | Meaning |
| KHN | Knoop Hardness |
| UMTRCA | Uranium Mill Tailings Radiation Control Act |
| UA | United Atom |
| OTC | Organic Toxic Compound |
| PLSR | Partial Least-squares Regression |
| WPI | Waste Policy Institute |
| AASD | Anaerobic Activated Sludge Digestion |
| EP | Electrostatic Precipitator |
| SPRI | Solid-phase Reversible Immobilization |
| HIGFET | Heterostructure Insulated Gate Field Effect Transistor |