# Tuscon Airport Remediation Project UAO
> **Administrative - Formal** · FY2024 · — · —
## Case
- **Activity ID:** `3603994341`
- **Case Number:** 09-2024-6010
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** —
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** —
## Defendants
- Tucson International Airport Area Site, Pima Count (complaint) (settlement)
## Summary

This Administrative Order ( Order ) is issued to Respondents the United States Air Force ( USAF ) and the Arizona Air National Guard ( AANG ) (collectively  Respondents ) pursuant to the authority vested in the Administrator of the U.S. Environmental Protection Agency ( EPA ) by Section 1431(a) of the Safe Drinking Water Act ( SDWA ), 42 U.S.C. Section 300i(a). The Administrator of EPA has delegated the authority to take these actions to EPA?s Regional Administrators by Delegation 9-17 (Imminent and Substantial Endangerment) (January 18, 2017), and the Regional Administrator for EPA Region 9 has redelegated the authority to the Director, Deputy Director, and Branch Chiefs of EPA Region 9's Enforcement and Compliance Assurance Division ( ECAD ) pursuant to Regional Directive R9 9-17 (May 9, 2018).

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