THIS EMERGENCY ADMINISTRATIVE ORDER IS ISSUED TO THE RESPONDENTS PREVIOUSLY IDENTIFIED BECAUSE EPA HAS IDENTIFIED THE PRESENCE OF BENZENE AND A SUBSTANTIAL INCREASE IN THE TOTAL DISSOLVED SOLIDS LEVELS IN THE QUATERNARY DEPOSITS, AN UNDERGROUND SOURCE OF DRINKING WATER. EPA HAS ALSO DETERMINED THAT THE RESPONDENTS, THROUGH THE OPERATIONS OF THEIR OIL AND GAS PRODUCTION FACILITIES IN THE EAST POPLAR OIL FIELD, HAVE CAUSED OR CONTRIBUTED AND/OR ARE CONTRIBUTING TO THE ENDANGERMENT OF THE UDWS.