Self-Accelerating Decomposition Temperature
SAP
Sampling and Analysis Plan
SAR
Structure-Activity Relationships: A method for estimating activity relationships (toxicity) with chemical structures.
SARA
Superfund Amendments and Reauthorization Act of 1986 to CERCLA
SARA
Title III
The Emergency Planning and Community Right-To-Know Act of 1986
SARA
Title IV
Deal with radon and indoor quality air research
SAS
Special Analytical Service
SBREFA
Small Business Regulatory Enforcement Act of 1996
SCBA
Self-Contained Breathing Apparatus
scfm
Standard cubic feet per minute
SDG
Sample Delivery Group
SDWA
US Safe Drinking Water Act
SEA
State/EPA Agreement
SEC
Securities Exchange Commission
sec
Second
SEM
Scanning Electron Microscopy
SERC
State Emergency Response Commission (SARA Title III)
SFE
Supercritical Fluid Extraction: An extraction procedure, usually with the use of carbon dioxide
sg
Specific Gravity
SI
Superfund Site (Investigation)
SIA
Surface Impoundment Assessment
SIC
Steel refining, Ink formulation, Pesticide manufacture
SIC Code
Standard Industrial Classification (or Code): A numerical categorization system used by the US Department of Commerce. SIC Codes refer to the products, or group of products, produced or distributed or to services rendered.
SIP
State Implementation Plan (CAA). A SIP is a detailed description of the programs a state will use to carry out its responsibilities under the Clean Air Act. State implementation plans are collections of the regulations used by a state to reduce air pollution. The Clean Air Act requires that EPA approve each state implementation plan. Members of the public are given opportunities to participate in review and approval of state implementation plans.
SITE
Superfund Innovation Technology Evaluation; EPA program that supports research, development and demonstration of the new remediation technologies.
Smoke
Airborne liquid and solid particles created by combustion of carbon or hydrocarbons.
SNAP
Significant New Applications Policy
SNUR
Significant New Use Rule
SOC
Schedule of Compliance
SOCMI
Synthetic Organic Chemical Manufacturing Industry
SO2
Sulfur Dioxide
SOx
Sulfur Oxides
SOP
Standard Operating Procedure
SOW
Statement of Work
SPA
Superfund Preliminary Assessment
SPCC
Spill Prevention Control & Countermeasure (Plan); CWA (40 CFR, Part 112); Plan under CWA to prevent oils and hazardous substances from reaching navigable waters.
Specific
Gravity
The ration of the mass of a substance to the mass of an equal volume of distilled water at 4 degrees Celsius.
SPM
Spill Prevention Management
SQG
Small Quantity Generator (Under RCRA, a facility which generates between 100 to 1000 kg of hazardous waste per calendar month).
SRT
Spill Response Team
SSRA
Site specific risk assessment
Staging Pile
An accumulation of solids, non-flowing remediation wastes (as defined in 40 CFR 260.10) that is not a containment building and is used only during remedial operations for temporary storage at a facility.
Stakeholder
Any organization, governmental entity or individual that has a stake in or may be impacted by a given approach to environmental regulation, pollution prevention, etc.
Stationary
source
(CAA) A place or object from which pollutants are released and which does not move. Stationary sources include power plants, gas stations, incinerators, houses, etc.
STC
Single Tip Container
Std. Meth.
Standard Methods; A manual containing standard methods for the analytical examination of water and wastewater. Authored by the American Water Works Association.
STEL
Short-Term Exposure Limit (OSHA)
STP
Standard Temperature (273.15EK = 0EC) & Pressure (760 mm Hg).
Subtitle C
Refers to “Hazardous Wastes” or a permitted or interim status facility for the management of hazardous waste. Regulations found at 40 CFR § 240 – 257.
Superfund
See CERCLA
Surfactant
Surfactants are compounds which are characterized by having both a hydrophilic (water soluble) group and a hydrophobic (oil soluble) group in the same molecule. What differentiates surfactants is the nature of these groups and the net charge (or absence of one) on the hydrophilic part of their molecule. There are 4 basic types of surfactants: Nonionic have no charge on the hydrophilic part of their molecule. Used primarily in detergents and emulsifiers in cleaning products. Examples include alkyphenol and linear alcohol ethoxylates. Anionic have a negative charge on the hydrophilic part of the molecule. These surfactants are used as wetting, dispersant and foaming agents. Examples include DDBSA and alcohol ether sulfate. Cationic have a positive charge on the hydrophilic part of their molecule. They are generally used as corrosion inhibition, dispersant and antistatic materials. Examples include quaternary compounds such as dialkyl and benzyl quats and ethoxylated amines. Amphoteric have both a positive and a negative charge on the hydrophilic part of their molecule depending whether they are in an acidic or alkaline media. Examples include carboxylated imidazoline derivatives and alklyether sultainies.
SV
Sievert (radiation measurement)
SVOC
Semivolatile Organic Compound
SW
Solid Waste
SWDA
Solid Waste Disposal Act (RCRA Predecessor)
SWMU
Solid Waste Management Unit
SWPPP
Storm Water Pollution Prevention Plan (CWA)
SW-846
EPA’s Test Methods for evaluating Solid Wastes