# CHARNOCK (UAO)
> **Administrative - Formal** · FY2001 · — · Unilateral Administrative Order Without Adjudication
## Case
- **Activity ID:** `53732`
- **Case Number:** 09-2001-0025
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** Unilateral Administrative Order Without Adjudication
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** $6.00M
- **Multimedia (multi-env):** N
## Defendants
- ATLANTIC RICHFIELD CO. (complaint) (settlement)
- BEST CALIFORNIA GAS LTD. (complaint) (settlement)
- CHEVRON USA CO. (complaint) (settlement)
- CONOCO, INC. (complaint) (settlement)
- DOUGLAS OIL CO. (complaint) (settlement)
- EXXON MOBIL CORP. (complaint) (settlement)
- HLW CORP. (complaint) (settlement)
- KAYO OIL INC. (complaint) (settlement)
- KAZUHO NISHIDA (complaint) (settlement)
- MOBIL OIL CORP. (complaint) (settlement)
- THRIFTY OIL CORP. (complaint) (settlement)
- TOSCO CORP. (complaint) (settlement)
- UNOCAL CORP. (complaint) (settlement)
- WINALL OIL CO. (complaint) (settlement)
## Summary

THIS IS A UNILATERAL ADMINISTRATIVE ORDER (UAO) PURSUANT TO  RCRA 7003 ISSUED TO CHEVRON U.S.A. INC., EXXON MOBIL CORP.,  ATLANTIC RICHFIELD COMPANY, CONOCO, INC., KAYO OIL COMPANY,  DOUGLAS OIL COMPANY OF CALIFORNIA, UNOCAL CORPORATION,       MOBIL OIL CORPORATION, TOSCO CORPORATION, THRIFTY OIL CO.,   BEST CALIFORNIA GAS LTD., KAZUHO NISHIDA, HLW CORPORATION    AND WINALL OIL COMPANY. IN AUGUST 1995, THE CITY OF SANTA    MONICA FOUND THE GASOLINE ADDITIVE MTBE IN ITS CHARNOCK      (MUNICIPAL WATER SUPPLY) WELLFIELD.  THESE RESPONDENTS,      WITH RESPONDENTS TO AN EARLIER EPA ADMINISTRATIVE ORDER      ON CONSENT (AOC) ISSUED ON NOVEMBER 30, 2000 (SHELL OIL      COMPANY/SHELL OIL PRODUCTS COMPANY/EQUILON ENTERPRISES LLC), HAVE RESPONSIBILITY FOR RELEASES OF MTBE AND OTHER GASOLINE  CONSTITUENTS THAT ARE CONTRIBUTING TO ENDANGERMENT OF        PUBLIC HEALTH AT THE WELLFIELD. THE PRESENT ORDER REQUIRES   THE RESPONDENTS TO PARTICIPATE AND COOPERATE (P&C) WITH      THE SHELL PARTIES IN PERFORMING INITIAL REGIONAL RESPONSE    ACTIVITIES THAT WILL ASSIST EPA AND THE LOS ANGELES          REGIONAL WATER QUALITY CONTROL BOARD IN SELECTING            APPROPRIATEE REGIONAL REMEDIES AND IN DETERMINING            IF THERE IS A BETTER ALTERNATIVE THAN THE CURRENT            METHOD OF WATER REPLACEMENT.

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