Region 9 Files CWA Expedited Settlement Agreement with American Cylinder Head: On February 9, 2026, Region 9 filed an Expedited Settlement Agreement (ESA) with American Cylinder Head, resolving Clean Water Act Section 301 violations for unauthorized discharge of industrial stormwater from the Oakland facility into San Francisco Bay. Under the ESA, the respondent developed a site-specific plan to ensure its industrial activities are no longer exposed to stormwater; applied for a no exposure waiver as allowed under the Industrial General Permit; and paid a cash penalty of $3,750.