Phase 2 Nitrogen Removal and Water Reclamation Plant Improvements

The Upper Occoquan Service Authority is seeking sealed bids for construction of Phase 2 Nitrogen Removal Plus Other Interim Process Improvements at its regional water reclamation plant in Centreville, Virginia.

Upper Occoquan Service Authority > Purchasing Department


General
Open
27-02
Nov 04, 2026 07:00 PM
Aug 24, 2026 12:00 PM
$775,000.00
4 years
Invitation for/to Bid (IFB/ITB)
Local
Ask AI about this solicitation
Original Solicitation Links
[

27-02

]

IFB

Contact
purchasing@uosa.org
+17038302200
14631 Compton Road, Fairfax, VA, USA
Submission Instructions
Online

or

Mail
14631 Compton Road, Centreville, VA 20121-2506
Description

The Upper Occoquan Service Authority is soliciting a contractor to construct Phase 2 Nitrogen Removal Plus Other Interim Process Improvements at the Millard H. Robbins, Jr. Regional Water Reclamation Plant. The work includes replacing screw pumps, upgrading return activated sludge pumps, improving selector-basin cyclone and settleability systems, replacing secondary clarifier mechanisms, replacing electrical equipment, replacing a primary sludge pump, and performing associated mechanical, electrical, instrumentation, structural, piping, HVAC, and site improvements. Bidders must demonstrate substantial wastewater and/or water treatment construction experience, including three qualifying projects within the last 10 years and specialized rehabilitation experience on an operating wastewater treatment facility. The bid package requires a completed and signed Bid Form with qualification information and appendices, acknowledgment of addenda, and bid security. The successful bidder must provide performance and payment bonds, insurance, and perform at least 30% of the non-equipment work with its own forces. Bids may be submitted electronically through eVA or physically in a sealed package; Addendum No. 1 changes the deadline to November 4, 2026, at 2:00 p.m.

Classification Codes
NAICS221320Sewage Treatment Facilities
PSCY1NDCONSTRUCTION OF SEWAGE AND WASTE FACILITIES
Smart Codes
wastewater treatment constructionwater treatment equipment installationindustrial electrical construction
Specifications
Supply & Service
Timeline
Aug 24, 2026-Posted Date
Sep 22, 2026 02:00 PM-Optional Pre-Bid Conference and Site Tour (optional)
Attendance is encouraged but is not a prerequisite for submitting a bid.
Nov 04, 2026 07:00 PM-Bid Submission Deadline
Requirements
Required
  • Workers' Compensation
  • Employer's Liability — $100,000.00
  • Commercial General Liability — $1,000,000.00
  • Commercial Automobile Liability — $1,000,000.00
  • Umbrella Liability — $2,000,000.00
  • Builder's Risk
Required
  • Bid Bond — 5%
  • Performance Bond — 100%
  • Payment Bond — 100%
Required
  • Minimum 3 references
  • Within the last 10 years
  • Projects valued at $20,000,000.00 or more
  • Client point of contact required for each reference
No
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