| Abbreviation | Definition |
|---|---|
| WPNJ | Watershed Partnership for New Jersey |
| WPOL | Water Pollution |
| WPP | Watershed Partnerships Project |
| WPPF | Watershed Protection Program Fund |
| WPU | Water Purification Unit |
| WPWP | Western Pacific Warm Pool |
| WQ | Water Quality |
| WQA | Water Quality Analysis |
| WQAL | Water Quality Assurance Laboratory |
| WQAP | Water Quality Action Plan |
| WQAS | Water Quality Analysis Set |
| WQAS-P | Water Quality Analysis Set-Purification |
| WQAT | Water Quality Assurance Testing |
| WQC | National Science Foundation Water Quality Center, University of Arizona |
| WQCA | Water Quality Cooperative Agreement |
| WQCH | Water Quality Control Handbook |
| WQDSS | Water Quality Decision Support System |
| WQI | Wetland Quality Index |
| WQIG | Water Quality Indicators Guide |
| WQM | Water Quality Meter |