# Montrose Chemical / Del Amo  (#1)
> **Administrative - Formal** · FY2003 · — · Unilateral Administrative Order Without Adjudication
## Case
- **Activity ID:** `98440`
- **Case Number:** 09-2003-0060
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** Unilateral Administrative Order Without Adjudication
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** —
## Defendants
- Montrose Chemical Corporation of Calif. Inc. (complaint) (settlement)
## Summary

This is a UAO pursuant to  CERCLA 106(a) issued to Montrose Chemical Corporation of California, Incorporated.  The UAO requires Montrose Chemical to undertake initial remedial design activities at the groundwater operable unit for the Montrose Chemical and Del Amo Superfund Sites.   The estimated cost of the work to be performed by Montrose is $2.5 million.

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