UTILITY ENGINEERING DIVISION

PROJECT: SDWRF Gas Holder and Treatment Plant Improv. DEPARTMENT OF WATER MANAGEMENT DATE: October 14, 2026 CITY OF DURHAM, NORTH CAROLINA

SECTION: 00 11 16 - Invitation To Bid

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DOCUMENT 00 11 16

INVITATION TO BID

Project: South Durham WRF Gas Holder Replacement and Treatment Facilities Electrical Improvements

Owner: City of Durham Department of Water Management

1600 Mist Lake Drive Durham, North Carolina 27704

Issuing Office:

Attention: Mr. Ben Mason City of Durham Department of Water Management Utility Engineering Division 1600 Mist Lake Drive Durham, North Carolina 27704

(919) 560-4381

Engineer:

Attention: Mr. Stephen Usher, PE Hazen and Sawyer, D.P.C.

4011 WestChase Boulevard, Suite 500 Raleigh NC 27607

(802) 356-9236

The City of Durham will open sealed formal Bids submitted by qualified Bidders at 2:00pm, November 19, 2026 for Project: South Durham Water Reclamation Facility Gas Holder Replacement and Treatment Facilities Electrical Improvements at the Department of Water Management Training Room A (room 2002A), 1600 Mist Lake Drive, Durham, North Carolina. The Project involves the furnishing of all materials, labor, equipment, tools, etc. unless otherwise specified, for the complete installation of the following for equipment and systems at two (2) of the City’s facilities:

I. South Durham Water Reclamation Facility (6605 Farrington Rd., Chapel Hill, NC 27517)

a. Gas Holder Replacement

i. Replacement of steel digester gas storage tank with membrane storage system

ii. Contracting with equipment vendors to install equipment

iii. Other work as indicated in the Contract Documents

b. Influent Pump Station - Floating Wye Improvements

i. Low voltage conductors and raceways

ii. Contracting with existing equipment vendors to modify existing equipment

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c. Switchboard No. 2 Replacement

i. Replacement of low voltage switchboard in Admin Building mezzanine

ii. Other work as indicated in the Contract Documents

d. Switchboard Breaker Replacements

i. Replacement of low voltage circuit breakers within existing equipment

ii. Contracting with existing equipment vendors to modify existing equipment

e. Gas Booster Compressor Building Electrical Re-feed

i. Replacement of ductbank, conduit, and wire to Building

ii. Installation of conduit and power and control wire to existing equipment and appurtenances

iii. Replacement of louver and exhaust fan

iv. Other work as indicated in the Contract Documents

II. Brown Water Treatment Plant (1615 Infinity Rd., Durham, NC, 27712)

a. Medium Voltage Transfer Pump Starter Replacement

i. Medium Voltage (4160V) Raw Water Transfer Pump Starters

ii. Medium Voltage and low voltage conductors and raceways

iii. Below grade electrical ductbanks and grading / earthwork

iv. Concrete equipment pads and modifications to curb and gutters

v. Other work as indicated in the Contract Documents

The foregoing description shall not be construed as a complete description of all work required.

Beginning at 2:00pm on October 16, 2026, the Contract Documents, will be on file in the Department of Water Management, Utility Engineering, 1600 Mist Lake Drive, Durham, North Carolina. The Contract Documents may be downloaded from Hazen and Sawyer, D.P.C., free of charge by emailing the Engineer at DurhamGasHolderBids@hazenandsawyer.com.

The Contract Documents may be viewed, free of charge, at the City of Durham, Department of Water Management, 1600 Mist Lake Drive, Durham, North Carolina by appointment only.

The Project Manual including Bidding Documents, Contract Documents, and Technical Specifications, including the drawings, will also be on file at the following locations:

• Associated General Contractors, Raleigh and Charlotte, NC

• McGraw Hill Dodge Plan Room, Raleigh and Charlotte, NC

• NC Institute of Minority Economic Development, 114 W. Parrish Street, Durham, NC

• Raleigh-Durham Minority Business Development Center, 800 North Mangum St, Durham, NC

A virtual pre-Bid conference shall be held at 11:00am, Friday, October 23, 2026 via Microsoft Teams.

Following the virtual conference, physical in-person site tours shall be offered for both sites starting at

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12:30pm on Monday, October 26, 2026 for South Durham Water Reclamation Facility and 03:00pm on Monday, October 26, 2026 for Brown Water Treatment Plant. The site tours shall begin at the South Durham Water Reclamation Facility (6605 Farrington Rd, Chapel Hill, NC 27517) and will then continue immediately afterwards at Brown Water Treatment Plant (1615 Infinity Rd, Durham, NC 27712). Bidders are strongly encouraged to attend both the pre-Bid conference and site tours. The project sites are secure facilities; therefore, no other sites visits shall be offered prior to the Bid. The Bidders who desire to participate in these activities should email a request to DurhamGasHolderBids@hazenandsawyer.com, with the subject “SDWRF Gas Holder Replacement and Electrical Improvements Prebid”.

Each Bidder must be licensed under Chapter 87 of the North Carolina General Statutes. Bidders must conform with the provisions of the North Carolina Contractor’s Licensing Act of 1925, as amended. All Bids must include a non-collusion affidavit.

The City of Durham requires the Project to be substantially completed within 450 consecutive calendar days, and completed within 510 calendar days from date of Notice to Proceed.

No Bid shall be considered or accepted unless at the time of its filing the same shall be accompanied by a deposit of cash or a certified or cashier's check drawn on a bank or trust company insured by the Federal Deposit Insurance Corporation (FDIC), in an amount equal to five percent (5%) of the amount of the Bid. The check shall be made payable to the City of Durham. Said deposit shall guarantee that the Contract will be entered into by the successful Bidder if the award is made. Such deposit of cash or certified or cashier's check may be held by the City until the successful Bidder has executed and delivered the Contract Documents, including performance and payment bond, to the City of Durham and returned or kept in accordance with North Carolina General Statute 143-129.

Refer to other Bidding requirements described in Document 00 21 15.

In lieu of the cash deposit or certified or cashier’s check mentioned above, the Bidder may file a Bid bond in the same amount executed by a corporate surety authorized to execute such bonds in North Carolina and conditioned as provided by North Carolina General Statute 143-129 and in the form attached to the Bidding Documents (see [Appendix F]) or on file with the Engineer. Bid bond forms enclosed as part of the Bidding Documents must be properly executed at the time Bids are submitted before Bid will be considered. Properly executed Power of Attorney of the corporate surety's agent shall accompany such bond and be attached to the page provided therefore in the Bidding Documents.

Bids shall be submitted under a condition of irrevocability, except as required by law, for a period of thirty (30) days after Bid opening.

The City of Durham reserves the right to accept or reject any or all Bids, to waive any and all informalities, and to disregard all nonconforming or conditional Bids or counter Bids, and to accepts the Bid that will be in the best interest of the City of Durham.

END OF DOCUMENT