Sewer & Drain Flow Monitoring System

The City of Nashua, New Hampshire, Division of Public Works, is soliciting bids on a sewer and drain flow monitoring system comprising five portable units with web-based data management, field installation, training, and 24 months of technical support, with bids due October 8, 2026, at 1:00 PM and an optional pre-bid meeting on September 25, 2026, at 9:30 AM.

Bidders must demonstrate a minimum of five years of documented experience in assembly, installation, and maintenance of flow monitoring equipment in gravity sewer applications and provide at least three references from similarly sized municipalities. The system must deliver 24/7 near real-time data collection at 15-minute intervals or daily via web-based reporting, with alarming capabilities for backup or high-flow events.

The contract term is 27 months commencing November 15, 2026, and terminating February 15, 2029, comprising approximately three months for installation and 24 months for data monitoring and support. The City has exercised options for two additional one-year renewal terms contingent upon satisfactory performance and budget appropriations. The bid schedule itemizes seven line items: purchase of five flow monitors with antennas, batteries, and installation hardware; hardware and battery warranties (24 months each); active data management and software subscription for 24 months with unlimited users and unlimited data storage; initial setup, maintenance, and training (16 hours); installation by trained technician; and shipping and handling for five units with batteries.

All bids must be FOB Nashua, New Hampshire. The successful bidder must provide General Liability ($1,000,000 per occurrence/$2,000,000 aggregate), Motor Vehicle Liability ($1,000,000 Combined Single Limit), and Workers' Compensation according to New Hampshire statutes. Bidders must submit bid forms, non-collusion affidavits, contractor qualifications statements, and bid bonds. Bids remain binding for 90 days following the bid deadline. Questions are due September 30, 2026, at 1:00 PM, with answers posted by October 2, 2026, at 2:00 PM. The City reserves the right to reject any and all bids and award to the lowest responsive and responsible bidder. Unsuccessful bidders may appeal within five business days by posting a bond of 25 percent of their total bid amount, up to a maximum of $250,000.