Cicero Water Hardness & Quality Report (2026)

The water supply for Cicero, New York, in Onondaga County, is managed by the Onondaga County Water Authority (OCWA), serving approximately 20,000 residents across the town and surrounding areas in Central New York. OCWA sources Cicero's water primarily from local groundwater wells tapping into limestone aquifers, supplemented by surface water from Skaneateles Lake when needed. Key facilities include the Cicero Well Field treatment plants, which process raw water through filtration, disinfection, and corrosion control before distribution via an extensive pipeline network covering northern Onondaga County.

The supply interacts with Silurian-Devonian limestone and dolomite formations, including the Onondaga Limestone and Salina evaporites, which contain dolomite, limestone, and gypsum. As groundwater percolates through fractures and karst features of Central New York's Appalachian Basin, it dissolves calcium, magnesium, and sulfate ions from these carbonate and evaporitic rocks. This prolonged rock-water interaction in karst terrain—rather than surface runoff—drives the hard, mineral-rich character of the supply. The watershed encompasses the Onondaga Lake basin and adjacent Finger Lakes tributaries, with recharge from the Appalachian Plateau uplands.

At very hard levels, scale buildup accelerates in water heaters, dishwashers, boilers, and washing machines, reducing efficiency by up to 50% and shortening appliance life. Faucets and showerheads clog with deposits, and skin and hair may feel dry due to soap inefficiency. Annual descaling of heaters, scale-inhibiting filters, and system flushing are recommended, and a water softener is strongly advised. OCWA reports pH typically between 7.2–7.8, with full EPA lead and copper compliance; primary contaminants of concern are naturally occurring minerals and disinfection byproducts including TTHMs at 70% of MCL, with chlorination, fluoridation, and pH adjustment applied in treatment.