Abbreviations & Acronyms: R-Z
Note: Some acronyms have more than one meaning. Multiple meanings are listed, separated by semi-colons.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
R
RA: Reasonable Alternative; Regulatory Alternatives; Regulatory Analysis; Remedial Action; Resource Allocation; Risk Analysis; Risk Assessment
RAC: Radiation Advisory Committee. Raw Agricultural Commodity; Regional Asbestos Coordinator. Response Action Coordinator
RACER: Remedial Action Cost Engineering Requirements
RACM: Reasonably Available Control Measures
RACT: Reasonably Available Control Technology
RAD: Radiation Adsorbed Dose (unit of measurement of radiation absorbed by humans)
RAP: Radon Action Program; Registration Assessment Panel; Remedial Accomplishment Plan; Response Action Plan
RCRA: Resource Conservation and Recovery Act
RCRIS: Resource Conservation and Recovery Information System
RD/RA: Remedial Design/ Remedial Action
R&D: Research and Development
RD&D: Research, Development and Demonstration
REE: Rare Earth Elements
REM: Roentgen Equivalent Man
RESOLVE: Center for Environmental Conflict Resolution
RfC: Reference Concentration
RfD: Reference Dose Values
RFI: Remedial Field Investigation
RI: Remedial Investigation
RIA: Regulatory Impact Analysis; Regulatory Impact Assessment
RI/FS: Remedial Investigation/ Feasibility Study
RLL: Rapid and Large Leakage (Rate)
RMP: Risk Management Plan
RNA: Ribonucleic Acid
ROD: Record Of Decision
ROG: Reactive Organic Gases
RPM: Reactive Plume Model; Remedial Project Manager
RRT: Regional Response Team; Requisite Remedial Technology
RSD: Risk-Specific Dose
RSE: Removal Site Evaluation
S
S&A: Sampling and Analysis. Surveillance and Analysis
S/O: Simulation/Optimization
SANE: Sulfur and Nitrogen Emissions
SAR: Start Action Request. Structural Activity Relationship (of a qualitative assessment)
SARA: Superfund Amendments and Reauthorization Act of 1986
SAS: Special Analytical Service. Statistical Analysis System
SAW/GC: Surface Acoustic Wave/Gas Chromatography
SBA: Small Business Administration
SBC: Single Breath Cannister
SCAPS: Site Characterization and Analysis Penetrometer System
SCBA: Self-Contained Breathing Apparatus
SCD/SWDC: Soil or Soil and Water Conservation District
SCFM: Standard Cubic Feet Per Minute
SCR: Selective Catalytic Reduction
SCW: Supercritical Water Oxidation
SDWA: Safe Drinking Water Act
SEDS: State Energy Data System
SEP: Supplementary Environmental Project
SERDP: Strategic Environmental Research and Development Program
SF: Standard Form, Superfund
SFA: Spectral Flame Analyzers
SI: International System of Units. Site Inspection. Surveillance Index. Spark Ignition
SIC: Standard Industrial Classification
SIMS: Secondary Ion-Mass Spectrometry
SIP: State Implementation Plan
SITE: Superfund Innovative Technology Evaluation
SMCL: Secondary Maximum Contaminant Level
SMSA: Standard Metropolitan Statistical Area
SO²: Sulfur Dioxide
SOC: Synthetic Organic Chemicals
SOFC: Solid Oxide Fuel Cell
SOUTHDIV: Southern Division (U.S. Navy)
SOW: Scope Of Work
SPCC: Spill Prevention, Containment, and Countermeasure
SPMD: Semi-Permeable Membrane Device
SQG: Small Quantity Generator
SRAP: Superfund Remedial Accomplishment Plan
SRC: Solvent-Refined Coal
SRM: Standard Reference Method
SSA: Sole Source Aquifer
SSL: Soil Screening Level
SSMS: Spark Source Mass Spectrometry
STARS: Strategic Targeted Activities for Results System
STEL: Short Term Exposure Limit
STEM: Scanning Transmission-Electron Microscope
SVE: Soil Vapor Extraction
SWDA: Solid Waste Disposal Act
SWMU: Solid Waste Management Unit
T
TAG: Superfund Technical Assistance Grant
TALMS: Tunable Atomic Line Molecular Spectroscopy
TAP: Technical Assistance Program
TBT: Tributyltin
TC: Target Concentration. Technical Center. Toxicity Characteristics. Toxic Concentration:
TCDD: Dioxin (Tetrachlorodibenzo-p-dioxin)
TCDF: Tetrachlorodi-benzofurans
TCE: Trichloroethylene
TCF: Total Chlorine Free
TCLP: Total Concentrate Leachate Procedure. Toxicity Characteristic Leachate Procedure
TCP: Trichloropropane
TDS: Thermal Desorption Sampler; Total Dissolved Solids
TEAP: Terminal Electron Accepting Processes
TEG: Tetraethylene Glycol
TEL: Tetraethyl Lead
THC: Total Hydrocarbons
THM: Trihalomethane
TLC: Thin-Layer Chromatography
TLV: Threshold Limit Value
TLV-C: TLV-Ceiling
TLV-STEL: TLV-Short Term Exposure Limit
TLV-TWA: TLV-Time Weighted Average
TMDL: Total Maximum Daily Limit; Total Maximum Daily Load
TNT: Trinitrotoluene
TOC: Total Organic Carbon/ Compound
TOX: Tetradichloroxylene
TPTH: Triphenyltinhydroxide
TPY: Tons Per Year
TRACES: Tri Services Automated Cost Engineering Systems
TRI: Toxic Release Inventory
TSCA: Toxic Substances Control Act
TSDF: Treatment, Storage, and Disposal Facility
TSP: Total Suspended Particulates
TSS: Total Suspended (non-filterable) Solids
TTHM: Total Trihalomethane
TTO: Total Toxic Organics
TVOC: Total Volatile Organic Compounds
TZ: Treatment Zone
U
UCC: Ultra Clean Coal
UCCI: Urea-Formaldehyde Foam Insulation
UDMH: Unsymmetrical Dimethyl Hydrazine
ug/m3: Micrograms Per Cubic Meter
UIC: Underground Injection Control
UMTRCA: Uranium Mill Tailings Radiation Control Act
USACE: United States Army Corps of Engineers
USAF: United States Air Force
USDA: United States Department of Agriculture
USFS: United States Forest Service
UST: Underground Storage Tank
UTM: Universal Transverse Mercator
UV: Ultraviolet
UVA, UVB, UVC: Ultraviolet Radiation Bands
UV-DOAS: Ultraviolet Differential Optical Absorption Spectometer
UXO: Unexploded Ordnance
V
VCP: Voluntary Cleanup Program
VI: Vapor Intrusion
VOC: Volatile Organic Compounds
VOST: Volatile Organic Sampling Train
VSS: Volatile Suspended Solids
W
WCED: World Commission on Environment and Development
WHO: World Health Organization
WHPA: Wellhead Protection Area
WQS: Water Quality Standard
WSF: Water Soluble Fraction
WWTP: Wastewater Treatment Plant
WWTU: Wastewater Treatment Unit
X
XRF: X-Ray Fluorescence
Z
ZRL: Zero Risk Level