| Acronym | Meaning |
| AASD | Anaerobic Activated Sludge Digestion |
| ISV | Initial Settling Velocity |
| ENAA | Epithermal Neutron Activation Analysis |
| NRMS | Neutralization-reionization Mass Spectrometry |
| BOARS | Born-Oppenheimer Angular Radial Sepn. (in Mol. Complexes Calcns.) |
| FATES | FIRFA And TSCA Enforcement System (now Known As SSTS) |
| CERL | Corvallis Environmental Research Laboratory |
| WSM | Watershed Model |
| DCBX | Distorted Coulomb-Born Exchange Approxn. |
| CANS | Combination Area Neutron Spectrometer |