Around New England · environment For Subscribers Eight Million Gallons of Raw Sewage Seeps Into Merrimack River By Matt McDonald November 1, 2017 · 10:15 AM EDT · Updated June 25, 2025 1:39 PM Advertisement A wastewater treatment plant in North Andover near the the northern Massachusetts river failed when power went out. A wastewater treatment plant in North Andover near the the northern Massachusetts river failed when power went out.… Advertisement