Upper Occoquan Service Authority bids & RFPs

Open bids

• GAC treatment system retrofit and PFAS pilot study

  Invitation for Bids (IFB)14631 Compton Rd., Centreville, VA 20121

  OpenDue Oct 6, 2026

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• Water reclamation plant nitrogen management and equipment upgrades

  Invitation for Bids (IFB)14631 Compton Rd, Centreville, VA 20121

  OpenDue Oct 22, 2026

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