Paramus Water Hardness & Quality Report (2026)

Paramus, New Jersey, in Bergen County — a major northeast New Jersey retail and suburban community (Paramus is a significant Bergen County borough — one of the most retail-dense communities in the United States; Paramus has one of the highest concentrations of retail square footage per capita of any municipality in the United States (Paramus contains multiple major shopping malls — Garden State Plaza (one of the largest malls in the New York metropolitan area), Westfield Garden State Plaza, Bergen Town Center, and Paramus Park, all within a few miles of each other; the Route 4 and Route 17 commercial corridors through Paramus are among the most heavily trafficked retail corridors in the Northeast)); Paramus has stringent Sunday trading laws (the Paramus Blue Laws prohibit most retail activity on Sundays — one of the most well-known municipal retail regulations in the country; the Sunday closing laws have been in effect since the 1950s), a diverse Bergen County community with a primarily Korean-American, Hispanic-American, and middle-class suburban family population, adjacent to Ridgewood and Fair Lawn in the Bergen County north New Jersey corridor — draws its municipal water supply via the United Water New Jersey. Water hardness in Paramus measures 137 mg/L — classified as moderately hard.

Paramus's moderate hardness reflects the northeast NJ Bergen County Highlands reservoir supply's calcareous-poor character with distribution effects. The Wanaque and Oradell Reservoirs drain the Precambrian Highlands gneiss with effective treatment, producing the moderately hard 137 mg/L.

At 137 mg/L, Paramus residents encounter moderate scale accumulation. Monthly cleaning is recommended. United Water New Jersey consistently delivers water meeting all New Jersey DEP and EPA Safe Drinking Water Act requirements.