A multibillion-dollar state environmental bill moving through the Massachusetts Legislature contains a provision that could undermine local wetlands protections in communities along the Charles River, including Dedham.

The Charles River Watershed Association flagged the concern in a legislative update published Tuesday, Aug. 25, warning that the Environmental Bond Bill, also known as the Mass Ready Act, includes Senate language that weakens municipalities' ability to enforce their own wetlands rules.

"This bond bill only comes around every five years so it's a big deal to get it right," wrote Cabell Eames of CRWA.

The bill is currently in a House-Senate conference committee, with a final version expected to reach Gov. Maura Healey's desk within months.

What's at stake locally

The provision hits close to home in Dedham. The town's Conservation Commission updated its Wetlands Protection Rules and Regulations on Aug. 22, 2025, for the first time since 2003. Those updated rules, developed in consultation with CRWA, the Metropolitan Area Planning Council and the Massachusetts Association of Conservation Commissioners, set a 200-foot buffer zone from the annual high water of the Charles River.

That's double the state standard.

The rules also require that any proposed work improve existing conditions and demonstrate resilience to climate change. If the Senate's wetlands language survives conference committee, local protections like Dedham's could be at risk.

The Massachusetts Land Trust Coalition and allied organizations warned in a letter to the conference committee that the provision could increase flood risks, threaten water quality and force communities to choose between protecting public health and maintaining access to state funding. The coalition urged lawmakers to retain the House version, which removed the wetlands-weakening sections.

Positives in the bill

CRWA acknowledged the bill also contains significant investments: $500 million for the Municipal Vulnerability Preparedness Program, stronger drought management provisions, funding for Watertown Dam removal and money to study dredging a silted-up section of the Charles in Watertown.

The organization said it continues to advocate for those provisions while pushing to strip the wetlands language.

Separate bill targets sewer overflows into Charles

A separate bill filed at CRWA's request by state Rep. Greg Schwartz of Newton would require an end to combined sewer overflows statewide by 2050. The bill has reached the House Committee on Ways and Means. CRWA called that "meaningful progress, especially for a first-time bill."

The Legislature moved into informal sessions in August, but the 2025–2026 session paused rather than closed. Lawmakers are expected to return to formal sessions in September.