# EAST POPLAR OIL FIELD
> **Administrative - Formal** · FY1999 · — · Final Order No Penalty
## Case
- **Activity ID:** `51388`
- **Case Number:** 08-1999-0269
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** Final Order No Penalty
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** N
## Defendants
- AMARCO RESOURCES CORPORATION (complaint) (settlement)
- EPEC-ALTAMOUNT CORPORATION (complaint) (settlement)
- MARATHON OIL COMPANY (complaint) (settlement)
- MURPHY EXPLORATION & PRODUCTION CO. (complaint) (settlement)
- MURPHY OIL CORPORATION (complaint) (settlement)
- MURPHY OIL USA (complaint) (settlement)
- PIONEER NATURAL RESOURCES COMPANY (complaint) (settlement)
- W.R. GRACE & COMPANY (complaint) (settlement)
## Summary

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.

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*Source: [EPA ECHO](https://echo.epa.gov/) · AI Analytics · CC0 1.0*