Wastewater Thickening Room Drain Pipe Replacement

The City of Nashua, New Hampshire Division of Public Works is soliciting bids through an Invitation for Bids (IFB0292-030526) for the replacement of drain piping at the Wastewater Treatment Facility located at 2 Sawmill Road in Hillsborough County. The procurement seeks qualified independent contractors with plumbing experience to remove and replace existing ductile iron drain piping with Schedule 80 PVC piping in the thickening room drain system located in the Process Building basement. The scope of work includes removal and replacement of approximately 110 linear feet of 6-inch diameter main piping, thirteen 4-inch inlet pipes, six 4-inch vent pipes, two 2-inch vent pipes, twelve cleanouts, and stainless steel supports and hangers. Contractors must obtain all required permits and licenses at their own expense and maintain thickening room operations throughout construction with minimal, coordinated shutdowns. Key project milestones include a mandatory pre-bid meeting and site tour on Thursday, February 19, 2026 at 10:30 AM, a bidder questions deadline of Wednesday, February 25, 2026 at noon with answers posted by Friday, February 27, 2026 at 3:00 PM, and a bid submission deadline of 2:00 PM on Thursday, March 5, 2026. The contractor must achieve substantial completion within 50 days of the Notice to Proceed and final completion within 60 days, with liquidated damages of $100 per working day assessed for delays. A one-year warranty period is required following substantial completion, and the contract will be awarded to the lowest responsive and responsible bidder, with all bids binding for 90 days following the bid deadline.

Insurance and bonding requirements establish financial thresholds for participation, including General Liability coverage of $1,000,000 per occurrence and $2,000,000 aggregate, Motor Vehicle Liability of $1,000,000 Combined Single Limit, and Workers' Compensation coverage of $100,000/$500,000/$100,000. A bid bond equal to 5% of the base bid price is required for bids of $35,000 or higher, along with Performance and Payment Bonds each equal to 100% of the contract price. The bid package does not indicate specific set-aside designations or restrictions limiting participation to disadvantaged enterprises or other protected categories. No incumbent vendors or current contractors are identified in the solicitation documents. The city will retain 10% of monthly payments until the work is 50% complete and will retain an additional 2% during the one-year warranty period, with payment due within 30 days of approval of monthly payment applications. While a specific budget range or award value is not explicitly stated in the available documentation, the bonding requirements suggest the contract value is anticipated to exceed $35,000, with the actual award amount to be determined by the lowest responsive and responsible bid received.