Proudly Serving the Following Communities
Lawrence, Methuen, Andover, North Andover, and Dracut
Welcome to the Greater Lawrence
Sanitary District Website
As a wastewater treatment facility, our organization supports five communities in northern Massachusetts: Lawrence, Methuen, Andover, North Andover, and Dracut, as well as Salem in southern New Hampshire.
Our purpose is to preserve and protect the Merrimack for enjoyment and use both today and the future. We hope your visit to our website is enjoyable and that you learn a lot about GLSD and the Merrimack River. Thanks for visiting!
Our current office hours are 8 a.m. to 4 p.m. Monday through Friday.
Please note that any office visits at the Greater Lawrence Sanitary District are by appointment only.
Any District vendors with regularly scheduled non-essential work should reach out to Richard Castonguay, GLSD’s Maintenance Manager, to discuss the scheduling of said work. He can be reached at 978-685-1612 ext. 107.
Greater Lawrence Sanitary District nears goal to produce enough power to meet its own electrical needs and become a Net-Zero or even Net-Positive energy user. Read: GLSD Organics to Energy Press Release Dec 10 2019-1
Baker-Polito Administration Invests $2 Million in Emergency Power to Protect Water Quality in Merrimack River
Funding for Greater Lawrence Sanitary District Will Prevent Wastewater Spills