Clean Water Week - Open House

Discover how clean water starts with you! Join us for a tour of our Hall Street Wastewater Treatment Facility during Clean Water Week to learn how wastewater is received from the sanitary sewer system and properly treated before being safely recovered back into the Merrimack River. Public tours will be available Monday, April 13, 2026, through Friday, April 17, 2026, from 8:00 a.m. until 2:00 p.m. Be advised that some odors may be present due to the natural treatment process. See the science in action and find out how we protect the river from pollution and why wastewater treatment is essential for a healthy environment. When: Monday, April 13, 2026 at 8:00 AM - Friday, April 17, 2026 at 2:00 PM EDT