Sayreville Water Hardness & Quality Report (2026)

The Borough of Sayreville Water Department serves approximately 45,231 residents in Middlesex County, New Jersey. The utility operates surface water intakes from the Raritan River and supplements supply with groundwater from local aquifers. Treatment facilities employ conventional processes including coagulation, sedimentation, and chlorination to meet state and federal drinking water standards. The 2024 Consumer Confidence Report notes alkalinity at 123 mg/L supporting corrosion control, and chlorination provides residual disinfection throughout the distribution system. Independent testing indicates five contaminants above EPA health-based guidelines, prompting recommendations for certified water filtration.

Sayreville's water supply originates from the Raritan River watershed and underlying Cretaceous-age aquifer systems typical of central New Jersey. The region's geology comprises Cretaceous sand and clay formations overlying Precambrian crystalline basement. Groundwater contributions from these aquifers introduce significant dissolved calcium and magnesium through natural mineral leaching, producing a hard water supply characteristic of the central New Jersey hydrogeological setting — a pattern common across the broader Raritan Basin region.

At the hard hardness level, Sayreville residents experience mineral scale buildup on fixtures, reduced soap and detergent effectiveness, and potential appliance efficiency losses in water heaters and dishwashers. Homeowners commonly report white deposits on faucets and showerheads. Water softening is recommended for households seeking to reduce scaling and improve cleaning performance, though hard water poses no direct health risk. The 2024 CCR confirms no MCL violations, while independent testing flags five contaminants above health guidelines, for which certified filtration is advised.