AAI – All Appropriate Inquiries
ACM – Asbestos-Containing Material
AOC – Area of Concern
AOI – Area of Interest
ARC – Brownfield Assessment, Revolving Loan Fund, and Cleanup Grants
ARRA – American Recovery and Revitalization Act
AST – Aboveground Storage Tank
ASTM – American Society of Testing Materials
AUL – Activity Use Limitation


BEA – Baseline Environmental Assessment (Michigan-specific)
BER – Business Environmental Risk
BFPP – Bona Fide Prospective Purchaser
BGS – Below Ground Surface
BRA – Brownfields Redevelopment Authority
BTEX – Benzene, Toluene, Ethylbenzene, and Xylenes


CAP – Corrective Action Plan
CAS – Chemical Abstracts Service
CDC – Community Development Corporation
CERCLA – Comprehensive Environmental Response, Compensation, and Liability Act
CESQG – Conditionally Exempt Small Quantity Generator (refer to VSQG)
CFR – Code of Federal Regulations
COC – Chain-of- Custody; or Chemical/Constituent of Concern
CP – Contingency Plan
CPO – Contiguous Property Owner
CREC – Controlled Recognized Environmental Condition
CSM – Conceptual Site Model
CVI – Chlorinated Vapor Intrusion
CWA – Clean Water Act


DBE – Disadvantaged Business Enterprise
DDCC – Documentation of Due Care Compliance (Michigan-specific)
DHHS – Department of Health and Human Services
DNAPL – Dense Non-Aqueous Phase Liquid
DOT – Department of Transportation
DQO – Data Quality Objectives
DRO – Diesel Range Organics


EC – Engineering Control
ECHO – Enforcement and Compliance History Information
EGLE – Michigan Department of Environment, Great Lakes, and Energy (formerly known as MDEQ)
EP – Environmental Professional
EPA – U.S. Environmental Protection Agency
EQ – Environmental Questionnaire
ERM – Environmental Risk Management
ERNS – Emergency Response Notification System
ESA – Environmental Site Assessment


FAC – Facultative vegetation
FACU – Facultative Upland vegetation
FACW – Facultative Wetland vegetation
FEMA – Federal Emergency Management Agency
FL/CL – Flammable Liquids/Combustible Liquids
FOIA – Freedom of Information Act
FRP – Facility Response Plan
FS – Feasibility Study


GHS – Globally Harmonized System of Classification and Labeling of Chemicals
GIS – Geographic Information System
GPM – Gallons per Minute
GPR – Ground-Penetrating Radar
GPS – Global Positioning System
GRO – Gasoline Range Organics
GW – Groundwater


HASP – Health and Safety Plan
HCS – Hazard Communication Standard
HDPE – High-Density Polyethylene
HAZWOPER – Hazardous Waste Operations and Emergency Response Standard
HREC – Historical Recognized Environmental Condition
HSA – Hollow-Stem Auger
HUD – Housing and Urban Development
HVOC – Halogenated Volatile Organic Compound


IC – Institutional Control
IDW – Investigation-Derived Waste
ITRC – Interstate Technology and Regulatory Council


JPA – Joint Permit Application


LARA – Michigan Department of Licensing and Regulatory Affairs
LBP – Lead-Based Paint
LDR – Land Disposal Restriction
LEL – Lower Explosive Limit
LLP – Landowner Liability Protection
LNAPL – Light Non-Aqueous Phase Liquid
LQG – Large Quantity Generator
LUG – Local Unit of Government
LUST – Leaking Underground Storage Tank


MBE – Minority-Owned Business Enterprise
MDEQ – Michigan Department of Environmental Quality
MDNR – Michigan Department of Natural Resources
mg/Kg – Milligrams per Kilogram (ppm)
mg/L – Milligrams per Liter (ppm)
MGP – Manufactured Gas Plant
MOA – Memorandum of Agreement
MOU – Memorandum of Understanding
MSDS – Material Safety Data Sheet (refer to SDS)
MSHDA – Michigan State Housing and Development Authority
MS/MSD – Matrix Spike/Matrix Spike Duplicate
MSSL – Media-Specific Screening Level
MW – Monitoring Well


NAICS – North American Industry Classification System
NAPL – Non-Aqueous Phase Liquid
NCA – Notice of Corrective Action
ND – Not Detected
NELAC – National Environmental Laboratory Accreditation Certification
NELAP – National Environmental Laboratory Accreditation Program
NHPA – National Historic Preservation Act
NFA – No Further Action
NOM – Notice of Migration
NPDS – National Pollutant Discharge Elimination System
NPL – National Priorities List
NRCS – Natural Resources Conservation Service
NWI – National Wetland Inventory


OBL – Obligate Wetland vegetation
OM&M – Operation, Maintenance, and Monitoring
O/O – Owner/Operator or Occupant
OPRA – Obsolete Property Rehabilitation Act
ORO – Oil Range Organics
OSHA – Occupational Safety and Health Administration
OSWER – Office of Solid Waste and Emergency Response


PAH – Polycyclic Aromatic Hydrocarbon
PCB – Polychlorinated Biphenyls
PCE/PERC – Tetrachloroethylene or Perchloroethylene
PE – Professional Engineer
PEC – Potential Environmental Concern
PEL – Permissible Exposure Limit
PFAS – Per- and Polyfluoroalkyl Substances
PFE – Pressure Field Extension
PFOA – Perfluorooctanonic Acid
PFOS – Perfluorooctanesulfonic Acid
PG – Professional Geologist
PID – Photoionization Detector
PIPP – Pollution Incident and Prevention Plan
PLSS – Public Land Survey System (Section/Township/Range)
PNA – Polynuclear Aromatics
PPE – Personal Protection Equipment
PPB – Parts per Billion
PPM – Parts per Million
PPT – Parts per Trillion
PRP – Potentially Responsible Party
PUL – Property Use Limitation
PVI – Petroleum Vapor Intrusion


QAPP – Quality Assurance Project Plan
QA/QC – Quality Assurance/Quality Control


RAP – Remedial Action Plan; or Response Activity Plan
RBCA – Risk-Based Corrective Action
RCRA – Resource Conservation and Recovery Act
REC – Recognized Environmental Condition
REL – Recommended Exposure Limit
RIASL – Recommended Interim Action Screening Level
RIC – Reactivity, Ignitability, and Corrosivity
RLF – Revolving Loan Fund
RSRA – Record Search with Risk Assessment


SAP – Sampling and Analysis Plan
SB – Soil Boring
SBA – Small Business Association
SDS – Safety Data Sheet
SESC – Soil Erosion and Sedimentation Controls
SHPO – State Historic Preservation Office
SOP – Standard Operating Procedure
SPCC – Spill Prevention Control and Countermeasures
SPLP – Synthetic Precipitation Leaching Procedure
SS – Soil Sample; or Site-Specific
SSD – Sub-Slab Depressurization
SSV – Sub-Slab Ventilation
SQG – Small Quantity Generator
SVOC – Semi-Volatile Organic Compound
SVE – Soil Vapor Extraction
SWMU – Solid Waste Management Unit
SWPPP – Storm Water Pollution Prevention Plan


TB – Test Boring
TCE – Trichloroethylene
TCLP – Toxicity Characteristic Leaching Procedure
T&E – Threatened and Endangered Species
TIF – Tax Increment Financing
TPH – Total Petroleum Hydrocarbons
TSCA – Toxic Substances Control Act
TSDF – Treatment, Storage, and Disposal Facility
TW/TMW – Temporary Monitoring Well


µg/Kg – Micrograms per Kilogram (ppb)
ug/L – Micrograms per Liter (ppb)
ug/m³ – Micrograms per Cubic Meter
UPL – Obligate Upland vegetation
USDA – U.S. Department of Agriculture
USACE – U.S. Army Corps of Engineers
USGS – U.S. Geological Survey
UST – Underground Storage Tank


VCP – Voluntary Cleanup Program
VEC – Vapor Encroachment Condition
VES – Vapor Encroachment Screening
VI – Vapor Intrusion
VISL – Vapor Intrusion Screening Level
VOC – Volatile Organic Compound
VSQG – Very Small Quantity Generator


WBE – Women-Owned Business Enterprise