Lewis Center Water Hardness & Quality Report (2026)

The water serving Lewis Center, Ohio, originates from groundwater wells managed by Del-Co Water Company. These wells tap into local aquifers within Delaware County, drawing from the Scioto River watershed's groundwater sub-basin. The water undergoes treatment at facilities like the Delaware County Water Treatment Plant near Marengo before distribution to homes and businesses throughout northern Delaware County. Recharge comes from precipitation seeping through glacial till and outwash deposits, feeding the underground sources that supply the community.

The geological makeup of the region significantly influences the water's character. Beneath the surface, Quaternary glacial sands and gravels lie atop Ordovician Kope and Eden Group shales. Deeper layers contain Devonian carbonates, notably the Columbus Limestone. As groundwater moves through these limestone and dolomite-rich bedrock formations, it naturally dissolves minerals like calcium and magnesium. This process, common in Ohio's glaciated karst terrains, results in a characteristically hard water supply.

Homeowners may notice scale buildup on pipes, water heaters, and dishwashers, which can decrease appliance efficiency by up to 30%. To combat this, regular flushing of hot water systems and descaling fixtures with vinegar are helpful maintenance practices. Given the water's hardness, installing a water softener is advisable for households experiencing issues like spotting on dishes or persistent soap scum. This can extend the lifespan of appliances and improve the effectiveness of detergents. Del-Co Water ensures the water meets safety standards, with pH levels maintained for corrosion control and treatments in place for common contaminants.