AOC          Administrative Order on Consent

AOI           Area of Interest

AST          Aboveground Storage Tank

ATSDR     Agency for Toxic Substances and Disease Registry

CCR         Current Conditions Report

CERCLA  Comprehensive Environmental Response, Compensation, and Liability Act

CLP          Community Liaison Panel

CRA         Conestoga-Rovers & Associates

GM           General Motors Company

HASP       Health and Safety Plan

IDEM        Indiana Department of Environmental Management

IDNR        Indiana Department of Natural Resources

IM             Interim Measures

NOI           Notice of Intent

PCB          polychlorinated-biphenyl

ppb           parts per billion (may also be seen as µg/kg or µg/L)

ppm          parts per million (may also be seen as mg/kg or mg/L)

RCRA      Resource Conservation and Recovery Act

RFI           RCRA Facility Investigation

TSCA       Toxic Substances Control Act

ACOE       Army Corps of Engineers

U.S. EPA   United States Environmental Protection Agency

USFWS    United States Fish and Wildlife Service

USGS       United States Geological Survey

UST          Underground Storage Tank