| ASTM | ASTM International |
| AOC | area of concern |
| BAZ | biologically active zone |
| BTEX | benzene, toluene, ethylbenzene, and xylene |
| BUI | beneficial use impairment |
| CIL | chemical isolation layer |
| cm | centimeter |
| Cpw | COC concentration in the porewater at equilibrium |
| CS | COC Concentration in sorbent at equilibrium |
| Csed | COC concentration in the sediment at equilibrium |
| CFR | Code of Federal Regulations |
| COC | contaminant of concern |
| COPC | contaminant of potential concern |
| CSM | conceptual site model |
| cy | cubic yard |
| DDT | dichlorodiphenyltrichloroethane |
| DNAPL | dense nonaqueous-phase liquid |
| DOC | dissolved organic carbon |
| DQO | date quality objective |
| DV | Darcy velocity |
| EBGCR | East Branch Grand Calumet River |
| ECOS | Environmental Council of the States |
| EFDC | Environmental Fluid Dynamics Code |
| EGLE | Michigan Department of Environment, Great Lakes, and Energy |
| EPA | Environmental Protection Agency, see also USEPA |
| ERIS | Environmental Research Institute of the States |
| GAC | granular activated carbon |
| GPS | global positioning system |
| HMW | high molecular weight |
| ITRC | Interstate Technology and Regulatory Council |
| K | hydraulic conductivity |
| Kd | adsorption-desorption distribution coefficient |
| Kf | Freundlich’s constant |
| KOC | organic carbon-water partition coefficient |
| kg/m2/cm | kilograms per square meter per centimeter |
| L/kg | liters per kilogram |
| lb/cf | pounds per cubic feet |
| LMW | low molecular weight |
| LNAPL | light nonaqueous-phase liquid |
| LPR | Lower Passaic River |
| µg | microgram |
| µg/kg | micrograms per kilogram |
| mg/kg | milligram per kilogram |
| µg/L | micrograms per liter |
| MGP | manufactured gas plant |
| mV | millivolt |
| NAPL | nonaqueous-phase liquid |
| NFIP | National Flood Insurance Program |
| NOM | natural organic matter |
| OBB | oleophilic biobarrier |
| OU | Operable Unit |
| PAC | powdered activated carbon |
| PAH | polycyclic aromatic hydrocarbon |
| PCB | polychlorinated biphenyl |
| PFAS | polyfluorinated alkyl substances |
| PGM Site | Portland Gas Manufacturing Site |
| PM | particulate matter |
| ppb | parts per billion |
| QA | quality assurance |
| QC | quality control |
| QA/QC | quality assurance and quality control |
| QoL | quality of life |
| RAO | remedial action objective |
| RCM | Reactive Core Mat® |
| RTK | real-time kinematic |
| RG | remedial goal |
| ROD | Record of Decision |
| SPI | sediment profile imaging |
| SWAC | surface area weighed average concentrations |
| TOC | total organic carbon |
| TPH | total petroleum hydrocarbons |
| UCL | upper confidence limit |
| USACE | United States Army Corp of Engineers |
| USEPA | United States Environmental Protection Agency |
| USGS | United States Geological Survey |
| VHG | vertical hydraulic gradient |
| VOC | volatile organic compound |
| WASP | Water Quality Analysis and Simulation Program |
| ZVI | zero-valent iron |
