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  • Staff Directory: Collection System Operations

Jack Ossowski

Position: Collections System Operator II
Phone: (925) 809-3017
Email Address: ossowski@isd.us.com

California Water Environment Association Member

Certification and Training:

California Sanitation Risk Management Authority

Copyright © 2026 Ironhouse Sanitary District

450 Walnut Meadows Drive, Oakley CA 94561

Telephone (925) 625-2279

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