Middletown Water Hardness & Quality Report (2026)

The City of Middletown Department of Public Works operates the water utility serving approximately 30,000 residents in Middletown and parts of surrounding Orange County, New York. Primary sources include surface water from local reservoirs and streams in the Wallkill River watershed, supplemented by groundwater wells tapping into glacial and bedrock aquifers. Treatment occurs at the city's water filtration plant, where raw water undergoes coagulation, sedimentation, filtration, and disinfection with chlorine. Annual Consumer Confidence Reports are available at middletownny.gov.

The supply originates in the Wallkill River basin within the Hudson River watershed, traversing terrain dominated by Paleozoic metamorphic rocks of the New Jersey Highlands and Hudson Highlands provinces. Glacial deposits from the Pleistocene era overlay fractured bedrock aquifers, allowing mineral leaching from schist, gneiss, and minor carbonate formations. Limestone and dolostone outcrops in nearby watersheds further contribute dissolved calcium and magnesium, imparting a moderately mineralised hardness to the supply.

At moderately hard levels, scale buildup occurs in water heaters, dishwashers, and washing machines, reducing efficiency and lifespan while increasing energy costs. Spotting on glassware and soap scum in bathrooms are common. Regular descaling with vinegar, installing drain screens, and using high-efficiency detergents help mitigate effects. A water softener is recommended for households with frequent scaling issues. Water meets EPA standards per the 2024 Annual Drinking Water Quality Report; low levels of TTHMs and haloacetic acids are managed via optimized chlorination.