Trotwood Water Hardness & Quality Report (2026)

The City of Trotwood, located in Montgomery County, Ohio, operates its own municipal water utility serving approximately 3,000 customers across roughly 37.5 miles of water mains. The utility sources its drinking water exclusively from the Miami Valley Buried Underground Aquifer, a regionally significant groundwater resource that supplies the greater Dayton metropolitan area. Water is treated and distributed by the Public Works Department's operations team. Residents and businesses may direct water service inquiries to Operations Supervisor Johnny McCluskey at 937-837-1702.

Trotwood's water supply is drawn from the Miami Valley Buried Underground Aquifer, hosted in Ordovician and Silurian carbonate bedrock — primarily limestone and dolomite formations. These soluble rock units are characteristic of southwestern Ohio's geology and naturally dissolve calcium and magnesium minerals as groundwater percolates through them. The aquifer's hydrogeology imparts a moderately hard mineral character to the finished water, consistent with regional groundwater chemistry patterns across the Miami Valley watershed.

At the moderately hard classification, Trotwood residents may observe mineral buildup on fixtures and reduced soap efficiency, though effects are less severe than in harder-water communities. Dishwashers and laundry appliances may show spotting or scale accumulation over time, and water heater efficiency may decline gradually. A point-of-use softener for dishwasher or laundry use is optional; whole-house treatment may extend appliance life and improve cleaning performance. Official water quality data are published annually in Trotwood's Consumer Confidence Report (CCR), available through the city's Public Works Department or the Ohio EPA.