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!
Current office hours are 8 a.m. – 11 a.m. Monday – Friday. These hours are subject to change.
Outside of these hours, please call and leave a message on the main phone number,
(978) 685-1612. We will make every effort to respond within one business day.
Please note that any office visits at the Greater Lawrence Sanitary District are by appointment only.
Also, any District vendors with regularly scheduled non-essential work should reach out to Richard Castonguay, GLSD’s Maintenance Manager, to discuss if such work shall continue or be rescheduled after Governor Baker’s Shelter in Place order is lifted. Mr. Castonguay can be reached at (978) 685-1612.
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