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Somerset sewer project Nantucket

Sewer infrastructure installation, what Article 15 sets in motion, meets the Somerset Needs Area, where once lines are installed in front of a property, connection becomes mandatory, triggering required hookups and leaving homeowners facing tens of thousands of dollars in potential costs

The $50,000 Connection

The Hidden Cost of the Somerset Sewer Project

Dominick Costanzo    April 28, 2026

For the homeowners of the Somerset Needs Area, Article 15 is no longer just a technical line item on the Town Meeting warrant, it’s a looming five-figure financial obligation.

 

At this year’s Town Meeting, Nantucket voters will decide whether to authorize $44.8 million to extend municipal sewer infrastructure into one of the largest expansion zones in recent island history. While the Select Board initially wavered, concerned about adding another $50 million in borrowing alongside the $100M+ Our Island Home facility, the project is now moving to the floor, shifting the conversation from overall municipal debt to the more immediate burden placed on individual households.

 

A Project of Environmental Necessity

The Somerset Needs Area isn't a random selection. It was identified in the 2015 Comprehensive Wastewater Management Plan (CWMP) as a critical zone south of the Mid-Island core. Currently, nitrogen from aging septic systems in this area is leaching into the groundwater, fueling algal growth and degrading nearby ponds.

 

If approved, Article 15 grants the Town broad authority to:
 

  • Construct Infrastructure: Run main lines from the Surfside Wastewater Treatment Facility.

  • Full Corridor Upgrades: The project includes water main extensions, drainage improvements, and complete roadway reconstruction.

  • Land Acquisition: Authorizes the use of eminent domain if necessary to complete the route.

 

The True Cost of Connecting

The project carries a betterment fee, the property owner's share of the town’s infrastructure cost, which is currently estimated between $20,000 and $25,000 for a standard three-bedroom home. But that’s only the beginning.

 

Residents learned during a Q&A session this month with Sewer Department representatives that the hidden costs of going from septic to sewer are substantial:
 

  • The Application Fee: A flat $4,000 just to start the process.

  • The Private Contractor: Homeowners are responsible for hiring their own contractor to run the line from the street to the house and to decommission their old septic tank.

  • The Total Burden: Once the betterment, the application fee, and the private labor are tallied, many residents are looking at a total expenditure nearing $50,000.
     

While the town offers a lien agreement to privatize the cost over 20 years at approximately 2% interest, and the Board of Health offers zero-interest loans for those who qualify, the scale of the investment has sparked affordability concerns. "If a family can’t afford it, what then?" was a recurring theme of the session.

Also, if approved, the estimated tax impact would increase the annual bill by approximately $71.61 for 20 years for a year-round property valued at $1,878,950 that qualifies for the residential exemption. 

 

Taxpayer Dollars, Off-Island Labor

Beyond the cost to the homeowner, questions are being raised about where the town’s $44.8 million investment is actually going. Under Massachusetts bidding laws, the project must be put out to public bid, meaning the contract will more than likely go to a large off-island firm.

This creates a secondary impact on the island’s already strained resources. While the town’s consultant estimates a presence of 10 to 12 workers, this figure likely represents only the active "pipe-laying" crew at a single site. When factoring in the specialized teams for drainage, water main extensions, roadway reconstruction, and project management, the daily workforce likely swells to 20 to 25 personnel during peak construction phases.

Because Massachusetts bidding laws often favor large off-island firms, these contractors frequently import their own labor force from the mainland. To avoid the high cost of daily ferry travel, firms typically lease local houses to board their crews, meaning this $44.8 million project could effectively remove several more year-round units from Nantucket’s critical housing inventory for the duration of the three-year build.

 

“Just making sure that this work being funded by Nantucket taxpayer dollars might be going straight into the pockets of off-island labor," noted one resident during the session, highlighting the frustration that local taxes may not be supporting local jobs.

 

The scope of the project has also drawn scrutiny regarding who is and isn't included. While the Miacomet Golf Course’s clubhouse and restaurant are slated to be hooked up to the new system, the golf course itself, its barns, and its dormitories are currently excluded. This has left some residents asking why a high-traffic entity like the Land Bank isn't sharing more of the burden or if they are paying the same rates as a single-family homeowner.

The Pool Factor vs. The Pocketbook

While Select Board members previously noted that sewer access could increase property values by allowing for expansions or swimming pools that septic systems currently prohibit, that upside feels distant to residents focused on the immediate bill.

 

If Article 15 passes, the Somerset area will undoubtedly see an environmental upgrade and a shift in land-use potential. But for the families living there now, the project represents a mandatory, high-stakes financial crossroads. When the sewer line finally reaches their front door in 2029, the "notice of requirement to connect" will come with a price tag that many are not yet prepared to pay.


The 2026 Annual Town Meeting begins on Monday, May 4, at 4:30 PM at the Nantucket High School Mary P. Walker Auditorium.

The Cost Breakdown

Cost Breakdown Sewer Nantucket
Timeline Sewer Nantucket
Somerset Sewer Project Nantucket

The Timeline

Streets within the Project Area
 

  • Austin Farm Drive

  • Catherine Lane

  • Clara Drive

  • Doc Ryder Drive

  • Farmview Drive

  • Finback Lane

  • Golfview Drive

  • Hatch Circle

  • Hendersons Drive

  • High Brush Path

  • Marble Way

  • Mioxes Way

  • New Hummock Circle

  • Sleepy Hollow Road

  • Smooth Hummocks Way

  • Swayze Drive

  • Todd Circle

  • Bartlett Farm Road

  • Bartlett Road

  • Raceway Drive

  • Somerset Lane

  • Somerset Road

  • West Miacomet Road

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