EPA v. MAHONEY ENVIRONMENTAL SOLUTIONS LLC - APO (CWA 311)
Final Order With Penalty
Case summary
On September 29, 2026, Region 10 filed a consent agreement and final order resolving violations of the Clean Water Act by Mahoney Environmental Services, Seattle (Respondent) for its used cooking oil collection and processing facility activities in Seattle, Washington. The EPA alleged the respondent Spill Prevention, Control, and Countermeasure (SPCC) plan was inadequate and did not include complete diagrams displaying all tanks, tank contents, appropriate secondary containment descriptions, failure prediction scenarios, and tank integrity testing. EPA also alleges that inspection records did not adequately document that tank-related issues and secondary containment was adequate. The Respondent has agreed to pay a penalty of $71,940 and has returned to compliance.
Defendants (1)
- MAHONEY ENVIRONMENTAL SOLUTIONS LLCNamed in complaintNamed in settlement
Facilities (1)
MAHONEY ENVIRONMENTAL SOLUTIONS, LLC
6333 1ST AVENUE SOUTH, SEATTLE, WA, 98108
Statutes cited
- CWA 311J — SPCC and/or Federal Response Plan Violations
Enforcement conclusions (1)
MAHONEY ENVIRONMENTAL SOLUTIONS LLC - APO (CWA 311)entered 2026-09-29
Primary law: CWA
Federal penalty: $71,940
Timeline (3 milestones)
- 2026-07-24Enforcement Action Data Entered
- 2026-09-29Final Order Issued
- 2026-09-29Complaint Filed/Proposed Order
Case metadata
- EPA activity ID
- 3605021294
- Case number
- 10-2026-0223
- Lead agency
- EPA
- EPA region
- 10
- Voluntary self-disclosure
- No
- Primary statute
- SPCC and/or Federal Response Plan Violations
Sourced verbatim from EPA ECHO Enforcement Case Report for case 10-2026-0223 . Bulk data: ICIS-FEC download summary.
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