vii
PUBC
Palustrine Unconsolidated Bottom, seasonally flooded
PUG
Physical Upgrade Plant
RCRA
Resource Conservation and Recovery Act
REE
rare earth elements
REO
rare earth oxide
RER
Rare Element Resources, Inc.
RoHS
Restriction of use of Hazardous Substances
ROM
Run-of-Mine
SLC
Species of Local Concern
SO
2
sulfur dioxide
SPLP
Synthetic Precipitation Leaching Procedure
T&E
threatened and endangered
TCaCO
3
/kT
total calcium carbonate per kiloton
TREO
total rare-earth oxide
TSF
Tailings Storage Facility
U.S,
United States
USACE
U.S. Army Corps of Engineers
USAF
U.S. Air Force
USDA
United States Department of Agriculture
V
volts
VOCs
Volatile Organic Compounds
w/w
weight basis
WAAQS
Wyoming Ambient Air Quality Standards
WCRM
Western Cultural Resources Management, Inc
WDEQ
Wyoming Department of Environmental Quality
WDOT
Wyoming Department of Transportation
WGFD
Wyoming Game and Fish Department
WQD
Water Quality Division
WYCRO
Wyoming State Historic Preservation Office Cultural Records Office
WYPDES
Wyoming Pollution Discharge Elimination System
XRD
X-Ray Diffraction
