South Lyon’s Home for Water Treatment in Michigan

Yes, South Lyon’s tap water meets all state and federal safety standards. However, like most municipal water systems, trace contaminants have been detected, including total trihalomethanes (up to 44.8 ppb), haloacetic acids (up to 10.3 ppb), nitrate (0.44 ppm), fluoride (0.79 ppm), and chlorine residuals (up to 0.90 ppm).

Yes, South Lyon’s water is considered hard. Hard water can lead to spotting, scale buildup, dry skin, and reduced appliance efficiency.

South Lyon’s water report does not indicate any violations related to PFAS compounds. While regulated PFAS compounds are monitored, trace or emerging contaminants can still be a concern in many regions. For added peace of mind, some residents choose reverse osmosis or advanced filtration systems designed to reduce PFAS.

Yes, South Lyon’s water contains fluoride. The highest detected level was 0.79 ppm, which is within state and federal guidelines for preventing tooth decay.

Water quality testing detected several trace contaminants, including:

Lead and copper monitoring also showed results below action levels.

South Lyon’s drinking water comes from four groundwater wells located within the city. These wells draw from underground aquifers, and the water is treated before being distributed to homes and businesses. Because groundwater naturally interacts with surrounding soil and rock, it can pick up minerals and trace contaminants along the way.

Yes, many South Lyon homeowners benefit from whole-house water filters, reverse osmosis systems, and water softeners. These systems can help reduce hard water effects, improve taste, and address trace contaminants that may still be present even when water meets regulatory standards.

South Lyon’s water contains naturally occurring dissolved minerals due to its groundwater source. While TDS levels are not considered unsafe, they can affect taste and contribute to scaling. Homeowners looking for cleaner-tasting drinking water often choose reverse osmosis systems to reduce dissolved solids.

No. Lyon Township runs its own public water system, separate from the City of South Lyon. The township pumps groundwater from five wells more than 195 feet deep, removes iron, filters the water and adds chlorine before it reaches homes. Hardness is high: the township’s most recent water quality report shows an average of about 18.4 grains per gallon (roughly 315 ppm), with results ranging from about 15.8 to 23.6 grains per gallon. Homes outside the township’s service area, especially in the more rural parts of Lyon Township, rely on private wells, where hardness and iron are common and no utility tests the water for you.

Lyon Township’s most recent water quality report shows no contaminants above their limits. Arsenic, which occurs naturally in some area groundwater, averaged about 3.3 ppb, below the 10 ppb limit, and all seven regulated PFAS compounds tested were not detected. In lead sampling, the 90th percentile result was 2 ppb with no homes above Michigan’s 12 ppb action level, and the township’s inventory lists 6 lead service lines out of 5,640. The report also lists three reporting and notification violations: one missed nitrate sample and two issues with paperwork for lead service line notices. None were health-based violations. You can read the full Lyon Township Water Quality Report for details.

With hardness averaging around 18 grains per gallon on township water, and often similar or higher on private wells, most Lyon Township homes benefit from a water softener to protect water heaters, fixtures and appliances from scale. Homes on private wells may also need iron filtration, and reverse osmosis can reduce arsenic and dissolved minerals at the kitchen sink. A free in-home water test shows exactly what your home needs.

You can access the latest water quality information through the City of South Lyon.