UIC Underground Injection Control

USDW underground source of drinking water

USFS U.S. Department of Agriculture Forest Service

USGS U.S. Geological Survey

WQB Water Quality Board

WQCC (New Mexico) Water Quality Control Commission

WQCD (Colorado) Water Quality Control Division

WQS water quality standards

WSGS Wyoming State Geological Survey

WYPDES Wyoming Pollutant Discharge Elimination System


δ13Cdic delta 13; the difference between the (13C/12C) carbon isotope ratios

mg/L milligrams per liter

g/L micrograms per liter

bbl barrels

BCF billion cubic feet

MCF thousand cubic feet

TCF trillion cubic feet

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