Holt Water Hardness & Quality Report (2026)

Holt, Michigan, in Ingham County south of Lansing along the Red Cedar River corridor — a fast-growing suburban community in the Lansing metropolitan area — receives its municipal water from the Ingham County Water System or through the Lansing Board of Water and Light (BWL), Michigan's largest combined public utility, which draws from the Grand River through water intake facilities in the Lansing area. The Grand River, one of Michigan's longest rivers, flows through central Ingham County before continuing northwest to Lake Michigan at Grand Haven.

The moderately hard 176.5 mg/L hardness and TDS of 385.1 mg/L reflect the Grand River's characteristic carbonate loading from its Michigan Basin watershed. The Grand River drains the Devonian and Silurian carbonate formations of central Michigan — including the Traverse Group limestone, Niagara Dolomite, and associated Devonian shales and carbonates of the Michigan Basin — the same formations producing moderate-to-hard water throughout Michigan's lower peninsula. River baseflow from the carbonate aquifer contributes sustained calcium and magnesium bicarbonate to the Grand River at the Lansing intake.

At 176.5 mg/L, Holt residents deal with moderately hard water affecting household appliances over time. Scale builds in kettles and coffee machines over months, the dishwasher benefits from rinse aid to prevent glassware spotting, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is the standard maintenance cadence for Ingham County households. The elevated PFAS level of 10.0 ppt is the most significant water quality concern for Holt residents — the Lansing area has documented PFAS contamination from military installations (Capital Region International Airport) and industrial sources throughout Ingham County. A certified reverse osmosis filter for drinking water is strongly recommended.