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Ironhouse Sanitary District

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  • Staff Directory: Water Recycling Facility
  • Staff Directory: District Management Team

John de Fremery

Position: Acting Plant Manager
Phone: (925) 809-3033
Email Address: defremery@isd.us.com

Copyright © 2026 Ironhouse Sanitary District

450 Walnut Meadows Drive, Oakley CA 94561

Telephone (925) 625-2279

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