Proudly Serving the Following Communities

Lawrence, Methuen, Andover, North Andover, and Dracut

New Hampshire:

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.

Latest News

Motor Home & Septic Waste Disposal

As a community service, the GLSD has facilities available to dispose of motor home waste. There is no charge to Private RV owners for this service. Disposal times are Mon-Sat. 7am – 3pm. Please contact the District Office with any questions (978) 685-1612.

Contact Us

240 Charles Street
North Andover, MA 01845
Tel: (978)685-1612
Monday – Friday 8:00 AM – 4:00 PM