Water Department

Water Department Billing: 248-437-2326 or 248-437-4006
email: accountingclerk@southlyonmi.org  or  mhoward@southlyonmi.org

Under the direction of the Superintendent, the City of South Lyon operates its own water system as well as its own sanitary and storm sewer lines. The Water Plant oversees the treatment and distribution of the City's water and water quality testing to ensure that it meets all applicable quality standards.

The Wastewater Treatment Plant is located at:
23500 Dixboro Road
South Lyon, Michigan 48178
(248) 437-4006

Services performed by the Water Department include:

After Hours Emergency:  
The Water Department is staffed from 7:30 am to 3:30 pm 7 days a week.  If an emergency occurs after these hours, or you have trouble contacting the department on the weekend, please contact the South Lyon Police Dispatch Non-Emergency Line.  The Water Department has a member of the staff on call every night and on Holidays. 
Please contact the police at 248-348-0911.  Please inform the police of the type of emergency and leave contact information.

Water and Sewer Service:
About the Water System: The City of South Lyon's water system is serviced by three (3) wells ranging in depth from 120 to 125 feet deep.  In 2002, a Water Plant renovation added more iron filtration and pumping capacity. We have a one-million gallon ground storage tank with a 500,000-gallon elevated water tower which supplies water pressure to the City at 60-70 psi. The City also operates its own Wastewater Treatment Facility, located at 23500 Dixboro Road. The plant is designed to treat 1.5 million gallons daily. After treatment, water is discharged into Yerkes Drain, which flows west to the Huron River.
Click here to see a time-lapse video of construction of the new water storage tank on Dorothy Street near McHattie Park.
Click here to see extended time-lapse video of Water Treatment Plant construction.

Cross Connection Control
Cross connection information
Cross connection brochure
Backflow assembly test form

Billing: Utility bills are issued quarterly (January, April, July and October) and are due the last business day of that month, by 5 pm. The bills include charges for water, sewer and garbage collection. Questions regarding billing should be directed to 248-437-2326 or 248-437-4006 or email: accountingclerk@southlyonmi.org or mhoward@southlyonmi.org. 
Please note: If you are moving, contact the water billing department at 248-437-2326 or 248-437-4006 one week prior to your move date to schedule a final water meter reading.

Utility:                   Rate                Unit of Measure            Effective Date
Water:                  $ 3.48             per thousand gallons               12/1/23
Sewer:                 $ 5.19              per thousand gallons               12/1/23
Total rate:           $ 8.67

Utility Rate Model

$38.91 per quarter (rate effective June 1, 2023)
Water Service: Water service related problems should be directed to (248) 437-4006.
Payment: We accept payment in the form of credit/debit card, cash, checks or money order. If you would like to make your payment on-line or by phone you can find the instructions here.

Wellhead Protection:
What is wellhead protection? It is the act of safeguarding our water supply. The City of South Lyon's aquifer lies beneath the Pumpkinfest parade route from which we pump the City's water supply. An aquifer is like an underground lake that is replenished by both rainwater and groundwater. The City of South Lyon pumps 2 million gallons per day from this aquifer. We supply 3,300 homes and businesses in the City of South Lyon with this water supply. A single drop of motor oil can contaminate hundreds of gallons of water.
What can I do to help? By properly recycling or disposing of household and commercial chemicals and reporting any illegal dumping to (248) 437-4006. You can also join the City of South Lyon's Wellhead Protection Committee. For more information, contact the Water Department at (248) 437-4006.
Need more information? A DVD is available free-of-charge to residents interested in learning more about the protection of South Lyon's drinking water. Pick up your copy from the Water and Wastewater Department.

Water Saving Tips: Every Drop Counts - Water Saving Tips At Home:
Did you know that we use about 77 gallons of water each day per person? A few simple changes can make a big difference.

  • Repair leaks: Dripping faucets and leaky toilets can waste over 2,000 gallons of water each year.
  • Replace old showerheads: Low flow showerheads can save 3 gallons per minute.
  • Run full loads: Running laundry machines and dishwashers when full instead of multiple smaller loads.
  • Consider water efficiency: When purchasing new laundry machines or dishwashers, consider water efficient models. They use up to 40% less water per year.
  • Turn off water: When brushing your teeth or shaving, turn the water off in the sink.

Collecting Rainwater Can Bring Water Bill Relief: If you're looking for ways to save on your bills, consider an old-fashioned technology: rain barrels. Rainwater is the best choice for your plants. Rainwater is oxygenated, unchlorinated, and warmer than tap water, making it ideal for your plants and turf. Use a rain barrel from your downspouts. A 1,000 square foot roof will collect 625 gallons of water from one inch of rain. Best of all – it’s FREE!!  Water that comes to city dwellers in the form of rain is hurried - into storm sewer systems and away by asphalt, concrete, or the roof of your house and these surfaces don’t absorb water.  In contrast, rainwater that falls on porous ground is filtered through layers of soil and rock and into ground water aquifers or into streams, rivers and lakes unassisted. Using a barrel to catch the water flowing from gutters is one of the simplest, cheapest ways to conserve water and divert it from the storm sewer system. And if your city or town bans watering during times of dry weather, it may be the ONLY way to avoid having to watch your garden wither and possibly die.
Rain barrels can either be purchased online or through local environmental organizations.  Many environmental groups and cities across the State sell rain barrels at subsidized prices. Several hardware stores now carry them certain times of the year. For more information, contact the Huron River Watershed Council at (734) 769-5123 or Southeastern Oakland County Water Authority at (248) 288-5150.

Top 10 Groundwater Myths
Wellhead Protection Program Overview