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Hinsdale board reviews wastewater asset-management plan; two sewer projects estimated at $120,000
Summary
Consultants from OSD LLC presented an asset-management plan for Hinsdale’s wastewater system (about 600 connections), identifying infiltration/inflow issues and two priority projects — a new headworks screen package and replacement of two influent pumps — estimated at $120,000 and likely eligible for Clean Water State Revolving Fund support.
Hinsdale’s Select Board on June 29 heard a presentation from OSD LLC on the town’s wastewater collection and treatment assets, including a prioritized list of capital needs and potential funding sources.
Sean Osborne, principal of OSD LLC, summarized the system serving roughly 600 sewer connections in the downtown village and described significant infiltration and inflow problems identified in recent assessments. He told the board that recent rehabilitations included installation of plastic pipe on Main Street, Stearns Court and Fitzgerald Court, but that remaining critical components date back decades.
The firm identified two priority capital projects: installing an upgraded headworks screen package and replacing the two influent raw sewage pumps originally installed in 1997. OSD’s estimate for those projects is about $120,000. The presentation noted the Clean Water State Revolving Fund as a competitive funding source and recommended staff consider application timelines and pre-application steps for related loan or grant programs.
Town wastewater superintendent Ernie Smalley and Sarah Ridyard from the New Hampshire Department of Environmental Services participated in the discussion, answering technical questions and noting funding competitiveness. The board did not take final action on the projects at the June 29 meeting but was advised that a successful pre-application would require a future vote before work could begin; if pursued and approved, work could begin as early as July 2027 depending on funding and procurement timelines.
Board members and members of the public emphasized the connection between level-of-service expectations and long-term costs, and the presentation included outreach recommendations such as public education on grease and disposable wipes to reduce system stress. The board directed staff to pursue funding opportunities and to plan any required public hearings and application steps.
The board adjourned without taking an immediate funding vote on the projects.
