s - second
S - Safety
S - Scrubber
SA - Special Assistant
SA - Sunshine Act
SA - Surface Area
S&A - Sampling and Analysis
S&A - Surveillance and Analysis
SAAMS - Region 4 Sample Analyses and Management System
SAB - Science Advisory Board
SAC - Secretarial Advisory Committee
SAC - Starved Air Combustion
SAC - Support Agency Coordinator
SAC - Suspended and Canceled Pesticides
SACM - Superfund Accelerated Cleanup Model
SAD - Research Triange Park Acid rain System
SADAA - Science Advisor to the Deputy Assistant Administrator
SAE - Sociey of Automotive Engineers
SAEWG - Standing Air Emmisions Work Group
SAGE - Solvent Alternative Guide
SAGE - Strategic Advisory Group on Environment
SAIC - Special-Agents-In-Charge
SAIP - Systems Acquisition and Implementation Program
SAMAC - Standing AIRS Management Advisory Committee
SAME - Society of American Military Engineers
SAMI - Southern Appalachain Mountains Initiative
SAMSON - Solar and Meteorological Surface Observation Network
SAMWG - Standing Air Monitoring Work Group
SANE - Sulfur and Nitrogen Emissions
SANSS - Structure and Nomenclature Search System
SAP - Sampling and Analysis Plan
SAP - Scientific Advisory Panel
SAP - Special Access Program
SAR - Start Action Request
SAR - Structure-Activity Relationship (of a qualitative assessment)
SARA - Superfund Amendments and Reauthorization Act (1986) (also known as the Emergency Planning and Community Right-to-Know Act of 1986 - EPCRA)
SAROAD - Storage and Retrieval of Aetrometric Data
SAS - Special Analytical Services
SAS - Statistical Analysis System
SASD - Strategies and Air Standards Division
SASS - Source Assessment Sampling System
SATO - Scheduled Airline Traffic Office
SAV - Submerged Aquatic Vegetation
SB - Senate Bill
SBA - Small Business Act
SBA - Small Business Administration
SBC - Single Breath Canister
SBE - State Board of Education
SBI - Special Background Investigation
SBO - Senior Budget Officer
SBO - Small Business Ombudsman
SBREFA - Small Business Regulatory Enforcement Fairness Act
SBS - Sick Building Syndrome
SC - Sierra Club
SC - Steering Committee
SCA - Secured Creditor Assessment
SCA - Specific Collection Area
SCAB - South Coast Air Basin
SCAC - Support Careers Advisory Committee
SCADS - Superfund Chemical Analysis Data System
SCAP - Superfund Comprehensive Accomplishments Plan
SCAQMD - South Coast Air Quality Management District
SCBA - Self-contained Breathing Apparatus
SCC - Source Classification Code
SCC - Secondary Combustion Chamber
SCD - Soil Conservation District
SCFM - Standard Cubic Feet per Minute
SCI - Sensitive Compartmented Information
SCLDF - Sierra Club Legal Defense Fund
SCORPIO - Subject Content Oriented Retriever for Processing Information On-Line
SCR - Selective Catalytic Reduction
SCRAM - State Consolidated RCRA Authorization Manual
SCRAM/BBS - Support Center for Regulatory Air Models (Bulletin Board System)
SCRC - Superfund Community Relations Coordinator
SCRP - Superfund Community Relations Program
SCS - Soil Conservation Service
SCS - Superfund Community Relations Program
SCS - Supplementary Control Strategy (System)
SCSA - Soil Conservation Society of America
SCSP - Storm and Combined Sewer Program
SCW - Supercritical Water Oxidation
SCWO - Supercritical Water Oxidation
SD - Standard Deviation
SD - Spray Dryer
SDBE - Small and Disadvantaged Business Enterprise
SDBUS - Small and Disadvantaged Utilization Specialist
SDC - Systems Decision Plan
SDCM - Standard Dry Cubic Meter
SDG - Sample Delivery Group
SDI - Selective Dissemination of Information
SDI - Subchronic Daily Intake
SDWA - Safe Drinking Water Act (as amended in 1986)
SDWIS - Safe Drinking Water Information System
S&E - Salaries and Expenses
SE - Standard Error
SEA - Securities Exchange Act
SEA - State Enforcement Agreement
SEA - State/EPA Agreement
SEAM - Superfund Exposure Assessment Manual
SEAM - Surface, Environment and Mining
SEAS - Strategic Environmental Assessment System
SEB - Source Evaluation Board
SEC - Securities and Exchange Commission
SEC - Senior Enforcement Counsel
SEDS - State Energy Data System
SEE - Senior Environmental Employment
SEF - Safe Enrichment Factor
SEGIP - State Environmental Goals and Improvement Project
SEIA - Socioeconomic Impact Analysis
SEIS - Supplemental Environmental Impact Statement
SEM - Scanning Electron Microscope
SEM - Standard Error of the Means
SEP - Special Emphasis Program
SEP - Standard Engineering Practice
SEP - Standard Evaluation Procedures
SEP - Supplemental Environmental Project
SEPWC - Senate Environment and Public Works Committee
SER - Society for Epidemiologic Research
SERC - State Emergency Response Commission
SERF - Systems Enhanced Request Form
SERS - Senior Executive Service and Executive Resources Staff
SES - Secondary Emissions Standard
SES - Senior Executive Service
SES - Socioeconomic Status
SETAC - Society for Environmental Toxicology and Chemistry
SETS - Site Enforcement Tracking System
SETS - Superfund Enforcement Tracking System
SF - Slope Factor
SF - Standard Form
SF - Superfund
SF-52 - Personnel Management Tracking System
SFA - Spectral Flame Analyzers
SFDS - Sanitary Facility Data System
SFFAS - Superfund Financial Assessment System
SFIREG - State FIFRA Issues Research and Evaluation Group
SFO - Servicing Finance Office
SFS - State Funding Study
SGL - Standard General Ledger
SGL - Static Groundwater Level
SHORTZ - Short Term Terrain Model
SHWL - Seasonal High Water Level
SI - International System of Units
SI - Site Investigation/Inspection
SI - Spark Ignition
SI - Surface Impoundment
SI - Surveillance Unit
SIBAC - Simplified Intragovernmental Billing and Collection System
SIC - Standard Industrial Classification Code
SICEA - Steel Industry Compliance Extension Act
SIEFA - Source Inventory Emission Factor Analysis
SIMS - Secondary Ion-Mass Spectrometry
SIP - State Implementation Plan
SIRMO - Senior Information Resources Management Officer
SIS - Science Integration Staff
SIS - Secretarial Information System
SIS - Stat in School
SITE - Superfund Innovative Technology Evaluation Program
SITS - Site Investigation Tracking System
SIU - Significant Industrial User
SL - Sick Leave
SLAMS - State/Local Air Monitoring Station
SLANG - Selecyed Letter and abbreviated Name Guide
SLAPS - St. Louis Air Pollution Study
SLD - Solid
SLD - Special Litigation Division
SLERA - Screening Level Ecological Risk Assessment
SLN - Special Local Need
SLPD - State and Local Planning Division
SLS - Superfund Label System
SLSM - Simple Line Source Model
SMART - Simple Maintenance of ARTS
SMCL - Secondary Maximum Contaminant Level
SMCRA - Surface Mining Control and Reclamation Act (1977)
SME - Subject Matter Expert
SMF - Standardized Monitoring Framework
SM/HD - Survey Meter and Historical Dosimetry Data Base
SML - Solicitation's Mailing List
SMO - Sample Management Office
SMOA - Superfund Memorandum of Agreement
SMP - State Management Plan
SMR - Standardized Mortality Rate
SMS - Security Management Section
SMSA - Standard Metropolitan Statistical Area
SN - Serial Number
SNA - System Network Architecture
SNAAQS - Secondary National Ambient Air Quality Standards
SNAP - Significant New Alternatives Policy
SNAP - Significant Noncompliance Action Program
SNARL - Suggested No Adverse Response Level
SNARS - Spill Notification and Response System
SNC - Significant Noncompliers
SNUN - Significant New Use Notification
SNUR - Significant New Use Rule
SO2 - Sulfur Dioxide
SOB - Statement of Benefits
SOC - Soluble Organic Carbon
SOC - Synthetic Organic Chemical
SOCMA - Synthetic Organic Chemical Manufacturers Association
SOCMI - Synthetic Organic Chemicals Manufacturing Industry
SOFC - Solid Oxide Fuel Cell
SOP - Standard Operating Procedure
SOQ - Statement of Qualifications
SOR - Special Operating Requirements
SOR - Standard Oxygen Transfer Rate
SORTST - Region 1 Soiurce Test File
SOSG - Standard Operating Safety Guide
SOT - Society of Toxicologists
SOTDAT - Source Test Data
SOTE - Standard Oxygen Transfer Efficiency
SOV - Single Occupancy Vehicle
SOW - Scope of Work
SOW - Statement of Work
SOx - Sulfur Oxides
SP - Self-Potential
SP - Spontaneous-Potential
SPAD - Special Programs and Analysis Division
SPAR - Status of Permit Application Report
SPATS - Small Purchase Automated Tracking System
SPC - Statistical Process Control
SPCC - Spill Prevention, Control and Countermeasure
SPD - State Programs Division
SPDES - State Pollution Discharge Elimination System
SPE - Secondary Particulate Emissions
SPECS - Specifications
SPF - Structured Programming Facility
SPHEM - Superfund Public Health Evaluation Manual
SPHI - Sludge Program Health Impacts
SPI - Strategic Planning Initiative
SPI - Society of the Plastics Industry
SPL - State Priority List
SPLMD - Soil-Pore Liquid Monitoring Device
SPLP - Synthetic Precipitation Leachate Procedure
SPM - Significant Permit Modification
SPM - Special Purpose Monitoring
SPMB - Security and Property Management branch
SPMS - Special Purpose Monitoring Stations
SPMS - Strategic Planning and Management System
SPO - Servicing Personnel Officers
SPOC - Single Point of Contact
SPS - Safety Plan System
SPS - State Permit System
SPSS - Statistical Package for the Social Sciences
SPTS - Small Purchase Tracking System
SPUR - Software Package for Unique Reports
SQAO - Region 5 Toxics Monitoring System
SQB - Small Quantity Burner
SQBE - Small Quantity Burner Exemption
SQG - Small Quantity Generator
SQL - Sample Quantitation Limit
SR - Special Review
SRA - Screening Ranges Approach
SRAP - Superfund Remedial Accomplishment Plan
SRC - Solvent-Refined Coal
SRE - System Removal Efficiency
SRF - State Revolving Fund
SRI/SFS - Supplemental Remedial Investigation and Feasibility Study
SRL - Soil Remediation Levels
SRM - Standard Reference Method/Material
SRP - Special Review Procedure
SRR - Second Round Review
SRR - Submission Review Record
SRT - Sludge Retention Time
SRTS - Service Request Tracking System
SRU - System Resource Unit
SS - Settleable Solids
SS - Spray Saturator
SS - Superfund Surcharge
SS - Suspended Solids
S/S - Solidification/Stabilization
SSA - Sole Source Aquifer
SSAC - Soil Site Assimilated Capacity
SSAN - Social Security Account Number
SSC - Scientific Support Coordinator
SSC - State Superfund Contracts
SSCD - Stationary Source Compliance Division
SSD - Standard Support Document
SSEIS - Standard Support and Environmental Impact Statement
SSEIS - Stationary Source Emissions and Inventory System
SSI - Size Selective Inlet
SSIS - Store Stock Inventory/Accounting System
SSMS - Spark Source Mass Spectrometry
SSN - Social Security Number
SSO - Sanitary Sewer Overflow
SSO - Source Selection Official
SSO - Support Services Office
SSRA - Site-specific Risk Assessment
SSRP - Source Reduction Review Project
SSS - Security Support Staff
SSS - Strategic Studies Staff
SSSADIR - Stationary Source Sampling and Analysis Directory
SST - Supersonic Transport
SSTRP - Steam Stripping of Organics from Liquid Wastes
SSTS - Section Seven Tracking System
SSURO - Stop Sale, Use and Removal Order
STABL - Stabilization
STALAPCO - State and Local Air-Pollution Control Officials
STAPPA - State and Territorial Air Pollution Program Administration
STAR - Stability Array
STAR - Stability Wind Rose
STAR - State Acid Rain Projects
STARA - Studies on Toxicity Applicable to Risk Assessment
STARS - Strategic Targeting Activities Reporting System
STARS - Superfund Transactions Automated Retrieval System
STATUS - Region 4 Status of GSA Orders
STC - Short-Term Concentration
S/TCAC - Scientific/Technical Careers Advisory Committee
STDMS - Sample Tracking and Data Management System
STEL - Short-Term Exposure Limit
STEM - Scanning Transmission-Electron Microscopy
STI - Scientific and Technical Information
STLC - Soluble Threshold Limit Concentration
STN - Scientific and Technical Information Network
STOPAC - Stratospheric Ozone Protection Advisory Committee
STORAGE - Cincinnati Disk Storage Annual Report
STORET - Storage and Retrieval of Water-Related Data
STP - Sewage Treatment Plant
STP - Standard Temperature and Pressure
STTF - Small Town Task Force
SUBCLIN - Contract Subline Item Number
SUD - Safe Use Determination
SUP - Standard Unit of Processing
SUPERFUND - Common designation for CERCLA - Comprehensive Environmental Response, Compensation and Liability Act
SUPTRK - Superfund Site Tracking Information System
SURE - Sulfate Regional Experiment Program
SV - Sampling Visit
SV - Significant Violator
SVE - Society of Vector Ecologists
SVE - Soil Vapor Extraction
SVM - Semi-Volatile Metals
SVOC - Semi-volatile Organic Chemical or Compound
SW - Slow Wave
SW - Solid Waste
SWA - Solid Waste Act
SWA - Solid Waste Administration
SWA - Source Water Assessment
SWAG - Simulated Waste Access to Groundwater
SWANA - Solid Waste Association of North America
SWAP - Source Water Assessment Program
SWAPP - Source Water Assessment & Protection Program
SWAQAT - Solid Waste Air Quality Tests
SWARF - Waste from Metal Grinding Process
SWAT - Solid Waste Assessment Tests
SWC - Settlement with Conditions
SWCD - Soil and Water Conservation District
SWDA - Solid Waste Disposal Act
SWDC - Soil and Water Conservation District
SWDSCMA - Solid Waste Disposal Site Cleanup Management Account
SWE - Society of Women Engineers
SWERD - Solid Waste and Emergency Response Division
SWETS - Safe Water Enforcement Tracking
SWIE - Southern Waste Information Exchange
SWMB - State/Solid Waste Management Board
SWMM - Stormwater Management Model
SWMU - Solid Waste Management Unit
SWP3 - Stormwater Pollution Prevention Plan
SWPA - Source Water Protection Area
SWQPPP - Source Water Quality Protection Partnership Petitions
SWRCB - State Water Resources Control Board
SWTCP - Surface Water Toxic Controls Program
SWTR - Surface Water Treatment Rule
SW-846 - U.S. EPA Test Methods for Evaluating Solid Waste
SYS - System
SYSOP - System Operator
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