How is Wastewater Treated in the Township?
Within Lyndon, some residents have their waste water handled by the Multi Lakes Sewer Authority. These sewer lines are on low-pressure sewers, meaning they may have grinder pumps installed. This pump grinds up the wastewater and forces it up to the main sewer lines.
Along with private septic systems, some residents in Lyndon are also serviced by sewer lines connecting them to water treatment plants.
Multi-Lake Water and Sewer Authority (MLWSA) provides sanitary sewer collection services and waste water treatment for portions of four townships, Lyndon, Unadilla, Putnam, and Dexter. Within Lyndon, there are three main areas where the MLWSA provides collection services, around Joslin and Ellsworth lake, Bruin and Blind lake, and Island Lake through a pressurized pipe system. MLWSA processes its sewage water at its treatment plant in Dexter, with a 0.3 MGD (Million Gallons per Day) capacity.
For emergencies only, contact MLWSA’s Sewer Dispatch at 1-877-806-3741.
Their office is located at 12088 N Territorial Rd, Dexter, MI 48130 and open from 9 am – 3 pm.
Office Business Phone Number: 734-426-9797
Fax: 734-426-6769
Email: multilake@gmail.com
Parts of Lyndon around Sugarloaf Lake are also serviced by the Sylvan Township Water and Sewer Authority.
They meet on the 3rd Wednesday at 10:00 a.m of every month.
To call them:
• Sewer Emergency: (877) 806-3741
• Water Emergency: (517) 449-2718
• Non-Emergency: (734) 475-8890, ext 112
To install a new Septic System, follow the regulations set by Washtenaw County.
The Washtenaw County Department of Planning and Environment will review and issue permits based on the following information:
Existing available records, soil maps, information on the wells of surrounding properties, USGS topographical maps, aerial photos, municipal water, and sewer plans.
To make any changes to a privately owned community sewage system a notification of intent.
This should contain:
- Name and address of the applicant.
- Engineering plan showing potential locations of the pertinent major features of the POCSS.
- Documentation of the necessary steps and the level of efforts taken by the developer to ensure compliance with local zoning.
- Documentation of the unavailability of municipal sewer.
More information on the requirements and regulations of Washtenaw County can be found here.
For information on the requirements for inspections of residential onsite water and sewage disposal systems at the time of property transfer, click here.
The Onsite Wastewater Management Unit, overseen by the Michigan Department of Environment, Great Lakes, and Energy (EGLE), works closely with local health departments to ensure safe wastewater management. For residents needing guidance on septic regulations, system approvals, or financial assistance, the Washtenaw County Health Department experts are valuable resources.
Contact information for key representatives is provided for further assistance:
Onsite Wastewater Management Unit Staff
The Onsite Wastewater Management Unit is a state-required service for local health departments to offer assistance and training to local health departments in the review and approval of land developments utilizing onsite wastewater systems.
Washtenaw County Health Department
555 Towner Ave./ PO Box 915
Ypsilanti, MI 48197
Marisa Faraldo, MS, REHS/RS
FaraldoM@Michigan.gov
517-243-9631
Anne Mitchell, MPH, REHS/RS
Septic Replacement Loan Program Manager
MitchellA26@Michigan.gov
517-914-4254
