| ACOE | U.S. Army Corps of Engineers |
| AEM3D | Aquatic Ecosystem Model |
| AWQC | ambient water quality criteria |
| BEIPC | Basin Environmental Improvement Project Commission |
| BLL | blood lead level |
| BLM | Biotic Ligand Model |
| BOD | biological oxygen demand |
| CDA | Coeur d’Alene |
| CDC | Centers for Disease Control and Prevention |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act |
| chl a | chlorophyll a |
| CIA | Central Impoundment Area |
| CMIP | Coupled Model Intercomparison Project |
| CTP | Central Treatment Plant |
| CTU | cumulative toxic unit |
| CWA | Clean Water Act |
| DGT | diffusive gradient in thin films |
| DO | dissolved oxygen |
| DOM | dissolved organic matter |
| EPA | U.S. Environmental Protection Agency |
| FAB | filamentous algal blooms |
| FERC | Federal Energy Regulatory Commission |
| HAB | harmful algal bloom |
| HHRA | human health risk assessment |
| IDEQ | Idaho Department of Environmental Quality |
| IDHW | Idaho Department of Health and Welfare |
| IDL | Idaho Department of Lands |
| IDWR | Idaho Department of Water Resources |
| LMP | Lake Management Plan |
| MACA | Multivariate Adaptive Constructed Analogs |
| NLA | National Lakes Assessment |
| NLCD | National Land Cover Dataset |
| NRCS | Natural Resources Conservation Service |
| NWIS | National Water Information System |
| OUs | operable units |
| PAR | photosynthetically active radiation |
| POM | particulate organic matter |
| RCP | Representative Concentration Pathway |
| ROD | Record of Decision |
| ROS | reactive oxygen species |
| SCM | surface complexation model |
| SRB | sulfate-reducing bacteria |
| SRP | soluble reactive phosphorus |
| SVRP | Spokane Valley Rathdrum Prairie |
| SWE | snow water equivalent |
| TMDL | total maximum daily load |
| TN | total nitrogen |
| TOC | total organic carbon |
| TP | total phosphorus |
| USDA | U.S. Department of Agriculture |
| USGS | U.S. Geological Survey |
| WQS | water quality standard |
| WRTDS | Weighted Regressions on Time, Discharge, and Season |
| WWTP | wastewater treatment plant |