Question and Submission History

Three things are in progress. The Emergency Action Plan covers the response. The draft Community Benefits Plan proposes testing private wells within 1,000 feet of the work limit at the project's cost, with bottled water within 48 hours if a test shows a change linked to the site. It also proposes a payment if a home within 1,000 feet sells for less than an independent appraisal says it is worth without the facility. These are drafts and not promises yet.

The draft Community Benefits Plan, released September 30, proposes that the project pay to test every eligible private well within 1,000 feet of the work limit before construction, so each household has a baseline. Wells downhill of the site on T. Hall Road and any well the Board of Health identifies as downgradient are also covered. Testing would repeat once during construction and once within 12 months after construction ends. The plan is a draft, and well testing is among its open decisions.

Groundwater monitoring at the site itself is committed. For residents' wells, the draft Community Benefits Plan proposes testing at the project's cost before, during, and within 12 months after construction, and again after any incident on the site, after blasting near a well, or at the request of the Board of Health. Whether testing would continue for the facility's full operating life is not decided.

If a well were affected, the draft Community Benefits Plan proposes that the project pay for bottled water within 48 hours and for treatment or a replacement well if a test shows a change linked to the site. This is a draft and not yet a commitment. The project is also to carry pollution liability insurance during construction and operation, and under Massachusetts law cleanup responsibility for contamination rests with the site's owner, regardless of fault. The emergency response plan defines how a release would be contained and addressed.

Private wells are a leading concern raised at every public meeting. Firefighting water is to be captured on a hard surface so it cannot reach groundwater, and runoff along the site's southern boundary is to be captured. A groundwater monitoring program is committed, with its terms in writing before construction starts. A hydrogeologic study is underway, and a well inventory within one mile of the site is complete. A door-to-door survey within half a mile is next.

The draft Community Benefits Plan proposes testing eligible private wells within 1,000 feet of the work limit, plus downhill wells on T. Hall Road and any well the Board of Health identifies, at the project's cost. Wells farther away are not named in the draft. Residents who rely on a private well farther out are asked to send their road so it can be checked against the site plans and the well records.

Water use, wastewater, and chemical storage. Water use details have not been published. The facility is not a power plant and is not expected to need an ongoing supply from the town's drinking water for normal operation. Wastewater and chemical storage information has not been published. The only significant liquid in each battery unit is the coolant in its cooling system, and the coolant type has not been specified. The hydrology and stormwater studies are committed and will be published.

Stormwater, wells, and aquifers. The design being developed uses basins sized for storm events, with a commitment to no net increase in runoff and no wetland fill. A hydrogeologic study with a well inventory is underway. The draft Community Benefits Plan proposes testing wells within 1,000 feet of the work limit, with baseline testing before construction and retesting during and after it.

Emergency response. The Emergency Action Plan is being built with Charlton Fire and will be reviewed by an independent reviewer the town selects and the project pays for. It is not published yet.

Independent review and monitoring. The Energy Facilities Siting Board conducts the state review, which includes public hearings and environmental review. An independent third-party review of the Emergency Action Plan is committed. A separate independent review of the groundwater study has not been committed. Groundwater monitoring at the site is committed, with its terms in writing before construction. The state's Intervenor Support Grant Program, up to $150,000 per group for each proceeding, can pay for expert witnesses.

Financial assurance and accountability. A decommissioning bond is required before construction and stays with the project through any change of ownership. Pollution liability insurance is to be carried during construction and operation, and Massachusetts law keeps cleanup responsibility with the site's owner. Permit conditions bind any future owner. The decommissioning bond covers removal and restoration so the cost does not fall to the town.

The process. The project is in the state's required pre-filing engagement phase, with public meetings, a Citizen Advisory Committee, published records, and a comment period on the draft Community Benefits Plan that runs into 2027. Every comment receives a written response. A cumulative impact analysis, which looks at what is already in the area, is part of the state process and is in preparation.