The project scope includes the following major items:
- Construction of four new odor control systems for Pump Station 6 (PS 6), Pump Station 6A (PS 6A), Junction Boxes, 1E and 1F, and Headworks A Grit Basin including foul air duct and supports.
- Installation of aluminum cover plate at Headworks A Grit Basins effluent channel
- Replacement of slide gates at PS 6 and PS 6A and demolition of weir gates at PS 6
- Corrosion improvements at PS 6 middle flume and screen channel
- Corrosion improvements at Headworks A Grit Basin effluent channel
- Coating repairs at replaced and demolished gates at PS 6 and PS 6A
- Demolition of existing Biofilters 5 and 6 structures
- Demolition of existing Bioscrubbers 4 and 5
- Demolition of Scrubber Unit 1 (SU-1) area abandoned chemical scrubbers and associated foul air duct and supports
- Demolish existing foul air ducts for PS 6 and PS 6A and Junction Boxes 1E and 1F including associated support and axillaries
- Relocation of 18” and 24” drain lines from discharging to the PS 6 middle flume to manhole S-MH-069
- Electrical and Instrumentation and control improvements at influent junction boxes 1E and 1F
## Details
**Bid/Project ID:** 3110.2064
**Type of Work:** Odor Control
**Pre-Bid Location:** 5300 S Collins St, Arlington, TX 76018
**Pre-Bid Notes:** One Non-Mandatory Pre-Bid Conference will be conducted at the Trinity River Authority’s General Office at 5300 S. Collins St., Arlington, TX 76018 on Wednesday, March 25, 2026, at 11:00 AM. RSVP is recommended by emailing TRA PROJECT MANAGER, Theodore Chan, at chantw@trinityra.org. A non-mandatory guided walking tour of the Project Site, located at 6500 W. Singleton Blvd, Dallas, Texas 75212, will take place on Wednesday, March 25, 2026, at 3:00 PM. This will be the only available time that prospective contractors can visit the project site. Prospective Proposers are reminded that all visitors attending the guided walking tour MUST have work boots, hard hats and safety vests in order to walk through the plant facilities and buildings. No exceptions. Site visit will start from the Administration Building. To enter the Central Regional Wastewater System Treatment Plant there are new Authorized Entry List procedures: Anyone wanting to attend the guided walking tour must give 24 hours prior notice to Theo Chan, chantw@trinityra.org, 817-832-5231, providing name, company representing, purpose (site visit), and time of arrival. For last minute changes, text Theo Chan at 817-832-5231 and include the same information (name, company, etc.)
**Bid Location:** Trinity River Authority of Texas General Office, Arlington, Texas
**Bid Notes:** Bid Proposals will be read aloud by conference call starting at the time and date of the bid deadline above. Bidders and interested attendees can call 1-866-390-1828 and enter access code 6046502#. The Authority will download the bids and the bid totals will be read. Preliminary bid results (totals only) will be posted on Civcast after the bid opening conference call. DIRECT ALL QUESTIONS REGARDING DISTRIBUTION OR DESIGN of Contract Documents for this Project through CivCast. Only responses issued via Addenda are binding.
**Engineer/Publisher:** Trinity River Authority of Texas
**Engineer Address:** 5300 South Collins, Arlington, Texas, 76018-1710
## Additional Notes
All documents and Q&A for this project will be posted on this CivCast site.
Anyone wanting to attend the Pre-Bid Conference must give 24 hours prior notice to Theodore Chan, chantw@trinityra.org, 817-832-5231 cell, providing name, company representing, purpose (Pre-Bid Conference), and time of arrival.