Wastewater Flow Metering Services

The New Hampshire Department of Environmental Services (NHDES) Winnipesaukee River Basin Program (WRBP) is soliciting proposals for Wastewater Flow Metering Services through a competitive request for proposals (RFP-DES-2026-14) with a deadline of 3:00 PM on April 10, 2026. The procurement encompasses the installation, calibration, operation, maintenance, and data analysis of flow metering equipment across nine permanent monitoring locations and four permanent rain gauge stations serving ten member communities in Belknap and Merrimack counties, including municipalities such as Laconia, Gilford, Tilton, Franklin, Sanbornton, and Belmont. The selected contractor must deliver monthly flow data collection and analysis in Excel format by the 10th of each month to support EPA Discharge Monitoring Report (DMR) compliance and cost recovery calculations, utilize Area Velocity (AV) and Ultrasonic (US) metering technologies with an 8% minimum accuracy target, perform recurring equipment maintenance and site visits, manage temporary meter deployments at up to six additional locations during specified periods, and coordinate police traffic details in Tilton as required by municipal ordinance. Key deliverables include comprehensive monthly monitoring reports, field calibration documentation, equipment specifications, site investigation reports with photographs, and groundwater infiltration analysis. The contract term spans five fiscal years (FY2027–FY2031) with potential extensions for an additional three to five years contingent upon satisfactory performance and available funding with Governor and Executive Council approval. Qualified firms must be registered in good standing with the New Hampshire Secretary of State, maintain commercial general liability insurance of at least $1,000,000 per occurrence and $2,000,000 aggregate, and carry workers' compensation coverage in compliance with New Hampshire law.

No set-aside designations or disadvantaged enterprise restrictions are specified in the available procurement documentation. EST Associates Inc. appears to be the incumbent vendor based on their preparation of the May 2025 Flow Monitoring Report included in the RFP package. The selected contractor must integrate with existing ISCO 674 rain gauges with ISCO 2105 Interface modules at four pump station locations and coordinate with the regional wastewater treatment infrastructure serving multiple municipalities. Additional considerations include navigating site-specific access constraints such as locations within Department of Transportation rights-of-way, railroad corridors, public beach facilities, and restricted-hour access at the Franklin Wastewater Treatment Plant (STP-1). The contract price is limited to a total of $37,469 across the five-year period, with annual base service costs for installed flow meters valued at $0 and optional services escalating from $7,200 in FY2027 to $7,794 in FY2031 at a 2.0% annual escalation rate, plus anticipated optional services totaling $22,035 over FY2027–FY2029. Prior year contract expenditures (FY2018–FY2020) totaled approximately $99,000, providing context for historical service costs within the program.