Dartmouth approves emergency cleanup after private sewer line spills wastewater into wetlands

DARTMOUTH Untreated wastewater reached wetlands near a commercial and industrial complex off Ledgewood Boulevard in Dartmouth after a blockage in a privately owned sewer main ruptured a manhole, the town's environmental affairs director said, and the Conservation Commission has approved emergency permission to repair the line and clean up the area.

The commission voted unanimously by roll call on Tuesday, Oct. 27, to approve Emergency Certification 2026-01 for 8 Ledgewood Blvd., with Cornerstone Building Brands and Tegra Medical listed as the owners and applicants. The meeting agenda describes the work as remediation related to a release of raw effluent, along with repairs and the work needed to reach the private commercial sewer main within wetland resource areas.

How the leak was found

A hunter who reaches Dartmouth Natural Resources Trust land through the sewer easement reported the problem the week before the meeting, Jennifer Miller, the town's director of environmental affairs, told the commission. Miller said she and the Health Department went out to see what was going on once they realized the sewer main was not town infrastructure.

Most sewer mains in Dartmouth are owned and operated through the Department of Public Works' water and sewer department, Miller said. The main serving the Ledgewood Boulevard area, a commercial and industrial complex developed about 30 years ago, is privately owned, she said. It runs mostly through Tegra Medical's parcel, then crosses other parcels and open space as it heads out toward Faunce Corner Road and connects back into the town system.

Miller said the problem was coming from 7 Ledgewood Blvd., the bigger building she said most people know as Harvey Windows and Doors, whose larger parent company is Cornerstone Building Brands. The certification is filed under 8 Ledgewood Blvd., which Tegra Medical lists as one of its manufacturing sites. Tegra does not feed into the line until the back of its building, Miller said.

What has been done

"Cornerstone has been very responsive," Miller told the commission. On Wednesday, Oct. 21, the day she and the Health Department went out, the company had someone on site to pump and haul away wastewater coming out of the building, she said. The building has an estimated 6,000 gallons a day of usage, Miller said, so it was important to stop that flow from going out through the ruptured manhole. That figure describes the building's daily use, not the amount released.

Before the end of that week and through the weekend, workers cleared the blockages in the line and the affected manholes, and Miller said that part of the problem has been resolved.

The blockage built up enough pressure to break through the concrete collar around one of the line's raised manholes, the kind that sit about 6 to 12 inches above the ground, she said. "We're hoping that's the only thing that needs to be replaced," Miller said, adding that a contractor would evaluate the manhole and that the company was working to hire a consultant in the next couple of days to evaluate any cleanup work that needs to be done.

What the permit allows

The emergency certification covers the repair of the ruptured manhole and the cleanup of wastewater that reached the surrounding wetland resource areas. Its special conditions require that any repair or cleanup work be reviewed by the conservation office, the Health Department and the Department of Public Works, and make the applicant responsible for stabilizing the site, any soil work and erosion control barriers, Miller said.

Emergency certifications last no more than 30 days, Miller said, and any work beyond that would have to come back before the commission with a notice of intent. Commissioners had no questions after Miller's presentation, and the chair then called for a motion to approve.

The Conservation Commission administers the state Wetlands Protection Act in Dartmouth along with the town's own wetlands bylaw, adopted in 1980, according to the commission's page on the town website.

What happens next

Miller did not say at the meeting how much wastewater reached the wetlands, how long it flowed, whether any reached a brook or stream, or whether anyone nearby should take precautions. SC360 is putting those questions to Cornerstone Building Brands, Tegra Medical and the conservation office and will add their answers to this story.

The commission's next meeting is Tuesday, Nov. 17, at 7 p.m. Residents with questions can reach the conservation office at 508-910-1822 or in Room 119 at Town Hall, 400 Slocum Road.

Label: Reported by us, from the town's posted records.