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AO see Agreed Order
AGREED ORDER A legal document issued by Ecology which formalizes an agreement between the department and potentially liable persons (PLPs) for the actions needed at a site.
ARARs Applicable Relevant and Appropriate Requirements
AST Above ground Storage Tank
ASTSWMO Association of State and Territorial Solid Waste Management Officials
ATSDR Agency for Toxic Substance and Disease Registry (federal government)
BC British Columbia (Canadian province)
BLA or BLS "Business License Application" or "Business License System" (managed by WA Department of Revenue)
BMP Best Management Practice
Brownfield Site "Brownfield property" means previously developed and currently abandoned or underutilized real property and adjacent surface waters and sediment where environmental, economic, or community reuse objectives are hindered by the release or threatened release of hazardous substances that the department has determined requires remedial action under this chapter (70.105D.020 RCW) or that the United States Environmental Protection Agency has determined requires remedial action under the federal cleanup law. A cleanup site is labeled a brownfield site when: 1) Designated brownfield funding sources are being used to fund cleanup activities; 2) A state or local governmental entity has determined that it is a brownfield cleanup site; and 3) The site has been flagged as a brownfield site in the ISIS database.
BTEX Major components present in gasoline: Benzene, Toluene, Ethylbenzene, and Xylene.
CAP see Cleanup Action Plan
CD 1) Consent Decree (A formal legal agreement that is filed with a court. It describes studies and/or cleanup work to be done at a site and the terms under which that work is to be done.); 2) Compact Disk (alternatively, CD-ROM: Compact Disk / Read-Only Memory)
CERCLA Comprehensive Environmental Response, Compensation, and Liability Act (Federal Superfund Law)
CERCLIS Comprehensive Environmental Response Compensation, and Liability Information System (information system, maintained by the U.S. Environmental Protection Agency)
CLARC Cleanup Levels and Risk Calculation tools
CLEANUP Actions taken to deal with a release, or threatened release of hazardous substances that could affect public health and/or the environment. The term "cleanup" is often used broadly to describe various response actions or phases of remedial responses such as the remedial investigation/feasibility study.
CLEANUP ACTION PLAN (CAP) (A document that describes the selected cleanup method(s) and specifies cleanup standards and other requirements. It is based on information and technical analyses generated during the RI/FS and consideration of public comments and community concerns. A draft of the CAP (DCAP) is made available for public review and comment before finalizing.)
COMMENT PERIOD A time period during which the public can review and comment on various documents and Ecology or EPA actions. For example, a comment period is provided to allow community members to review and comment on proposed cleanup action alternatives and proposed plans. Also, a comment period is held to allow community members to review and comment on draft feasibility studies.
CONSENT DECREE A formal legal document, approved and issued by a court which formalizes an agreement reached between the state and the potentially liable person(s) (PLPs) on what will take place during the Remedial Investigation/Feasibility Study and/or cleanup action. A Consent Decree is similar to an Agreed Order except that a Consent Decree goes through the courts. Consent Decrees are subject to public comment. If a decree is substantially changed, an additional comment period is provided.
CONTAINMENT A container, vessel, barrier, or structure, whether natural or constructed, which confines a hazardous substance within a defined boundary and prevents or minimizes its release into the environment
CONTAMINANT Any hazardous substance that does not occur naturally or occurs at greater than natural background levels.
CSCS Confirmed & Suspected Contaminated Sites list (a standard report / data set produced by the Toxics Cleanup Program)
DBMS DataBase Management System (A collection of related bits of
digital information, organized to facilitate consistent entry and efficient storage
DCAP Draft Cleanup Action Plan. A preliminary version of the Cleanup Action Plan (CAP)
DEIS Draft Environmental Impact Statement. A preliminary version of the Environmental Impact Statement
DMMP Dredged Material Management Program
DNR Department of Natural Resources (state agency)
DOL Department of Licensing (state agency)
DOT Department of Transportation (state agency)
DSG Data Submittal Guide (Tools, data templates, and documentation for loading environmental data into the Agency EIM system.)
DSMOA [Department of] Defense - State Memorandum of Agreement
EAP Environmental Assessment Program
EIM Environmental Information Management system (agency-wide information system)
EIS Environmental Impact Statement. A document that includes an analysis of probable adverse environmental impacts of a proposal, reasonable alternatives, and possible mitigation measures.
EO Enforcement Order A legal document issued by the department requiring remedial action. Failure to comply with an enforcement order may result in substantial liability for costs and penalties.
EPA Environmental Protection Agency (federal government)
FAQ Frequently Asked Questions list
FACILITY/SITE SYSTEM (an Agency-wide "umbrella" system used to store basic information about facilities / sites, such as site name(s) and location information.)
FEASIBILITY STUDY A companion study for the remedial investigation, where different cleanup technologies and their costs are identified and evaluated based on criteria established during the remedial investigation. These two steps are often combined and referred to as the RI/FS.
FEIS The last and definitive version of an Environmental Impact Statement.
FS or F/S 1) see Feasibility Study or 2) Facility/Site System
FTE Full-Time Equivalent (staff person measurement)
FUDS Formerly Used Defense Sites
FY Fiscal Year
GIS Geographic Information System
GROUNDWATER Water found beneath the earth's surface that fills pores between materials such as sand, soil, or gravel. In some aquifers, ground water occurs in sufficient quantities that it can be used for drinking water, irrigation and other purposes.
HSL Hazardous Sites List (A semi-annual list of ranked contaminated sites slated for cleanup under the Model Toxics Control Act.)
IC or IC/RC Institutional Controls or Institutional Controls / Restrictive
Covenants. (Institutional controls are measures taken to limit or prohibit activities
interfere with the integrity of a cleanup action or that may result in exposure
substances at a cleanup site. Examples may be found in WAC 173-340-440(1).)
II see Initial Investigation
INDEPENDENT CLEANUP ACTION Any remedial action without department oversight or approval and not under an order or decree
INFORMATION REPOSITORY A file containing current information, technical reports, and reference documents available for public review. The information repository is usually located in a public building that is convenient for local residents such as a public school, city hall, or library.
INITIAL INVESTIGATION An investigation to determine that a release or threatened release may have occurred that warrants further action. (The acronym is there, but can we add the definition)?
INTERIM ACTION A cleanup action that only partially
addresses the cleanup of a site. An interim
action is typically either:
LIMS Laboratory Information Management System (Agency-wide system)
LTCA Local Toxics Control Account
LUST Leaking Underground Storage Tank
MCL Maximum Contaminant Level
MLS Former "Master License System" (information system transferred from Department of Licensing to Department of Revenue; ties to UST/LUST data) -- see BLA or BLS
MODEL TOXICS CONTROL ACT (MTCA) Legislation passed by the State of Washington in 1988. Its purpose is to identify, investigate, and clean up facilities where hazardous substances have been released. It defines the role of Ecology and encourages public involvement in the decision making process. MTCA regulations became effective March 1, 1989 and are administered by the Washington State Department of Ecology.
MONITORING WELLS Special wells drilled at specific locations on or off a hazardous waste site where groundwater can be sampled at selected depths and studied to determine the direction of groundwater flow and the types and amounts of contaminants present.
MTBE Methyl Tertiary Butyl Ether
MTCA Model Toxics Control Act
MUDS Multi-User Disposal Site
NAD27 North American Datum, 1927 version (geographic data,
horizontal accuracy measurement)
NAD83 North American Datum, 1983 version (geographic data, horizontal accuracy measurement)
NAICS North American Industry Classification System (replaced former "SIC" code system)
NFA No Further Action
NOAA National Oceanic and Atmospheric Administration (federal agency)
NPL National Priorities List (of contaminated sites, produced and maintained by the U.S. Environmental Protection Agency)
NRDA Natural Resource Damage Assessment
O&M Operation and Maintenance (Activities conducted at a
site after cleanup construction is completed to ensure that the cleanup or
containment system is functioning properly. Examples include: monitoring of
ground water or surface water, maintaining pumps and other on-site equipment,
repairing erosion damage to a soil cover, etc.)
OFM Office of Financial Management (state agency)
OU Operable Unit
PAH Polycyclic Aromatic Hydrocarbons
PBT Persistent, Bio-accumulative Toxic substances
PBDEs PolyBrominated Diphenyl Ethers (widely-used flame retardants)
PCBs PolyChlorinated Biphenyls
PDF Portable Document File (or .pdf file, may be read using the Adobe Acrobat reader free software)
PLIA Pollution Liability Insurance Agency (state agency)
PLP see Potentially Liable Person, or Potentially Liable Party
POTENTIALLY LIABLE PERSON Any person whom Ecology finds, based on credible evidence, to be liable under authority of RCW 70.105D.040.
PPP Public Participation Plan: A plan prepared to encourage coordinated and effective public involvement designed to the public’s needs at a particular site. This plan is required during the investigation and cleanup of hazardous waste sites.
PQL Practical Quantitation Limit
PSAMP Puget Sound Ambient Monitoring Program
PSDDA Puget Sound Dredge Disposal Analysis
PSI Puget Sound Initiative
QA/QC Quality Assurance / Quality Control
R&D Research and Development
RA see Remedial Action
RCW Revised Code of Washington
RD Remedial Design (A cleanup step that includes detailed engineering analyses, and development of plans and specifications to carry out the selected method of cleanup.)
RD/RA Remedial Design / Remedial Action (Combined cleanup steps)
REMEDIAL ACTION 1) Remedial Action (or Cleanup Action: Construction work done to cleanup a contaminated site. Examples include: removal of contaminated soils or sediment for treatment or disposal at an off-site location; pumping and treating of contaminated ground water; sealing off contaminated soils or sediment beneath a cap or barrier; the addition of chemicals or enhancement of the growth of microorganisms that break down contamination in place; etc.); 2) Risk Assessment.
REMEDIAL INVESTIGATION/FEASIBLITY STUDY Two distinct but related studies. They are often
performed at the same time, and together referred to as the "RI/FS." They are intended to:
RESPONSIVENSS SUMMARY: A summary of oral and/or written
public comments received by Ecology during a comment period on key documents,
and Ecology's responses to those comments. The responsiveness summary is
especially valuable during the Cleanup Action Plan phase at a site when it
highlights community concerns.
RI Remedial Investigation A companion study for the feasibility study. This investigation collects data to determine the extent and magnitude of contamination and evaluation criteria for the cleanup is established. These two steps are often combined and referred to as the RI/FS.
RI/FS see Remedial Investigation/Feasibility Study
ROD Record of Decision
RP Responsible Party
SAB Science Advisory Board
SAPA Sediment Sampling and Analysis Plan
SEPA State Environmental Policy Act
SHA Site Hazard Assessment (An assessment to gather information about a site to confirm whether a release of hazardous substances has occurred and to enable Ecology to evaluate the relative potential hazard posed by the release.)
SIC Standard Industrial Classification (coding system, replaced by newer "NAICS" system)
SIZ Sediment Impact Zone
SMARM Sediment Management Annual Review Meeting
STCA State Toxics Control Account
TCP Toxics Cleanup Program
TEE Terrestrial Ecological Evaluation
TMDL Total Maximum Daily Load
TPH Total Petroleum Hydrocarbon
TSP Tacoma Smelter Plume (area-wide contamination project)
USACE United States Army Corps of Engineers (federal agency)
UST Underground Storage Tank
UXO Unexploded Ordnance
VCP Voluntary Cleanup Program (Voluntary cleanups are initiated by persons responsible for the contamination at a site, without prompting by Ecology. Voluntary cleanups may be conducted completely independently of Ecology; mostly independently but with some Ecology assistance or review; or with detailed Ecology oversight under a signed legal agreement such as an agreed order or a consent decree.)
WAC Washington Administrative Code
WARM Washington Ranking Method (the method used to rank sites placed on the Hazardous Sites List)
WASP Water quality Analysis and Simulation Program (computer modeling program)
This page last updated: April 28, 2016
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