Ozone Park Water Hardness & Quality Report (2026)

Ozone Park, New York, a neighborhood in southwestern Queens — one of New York City's most ethnically diverse neighborhoods, with a large Guyanese-American, Indo-Caribbean, and Bangladeshi-American community, bordered by Howard Beach, Richmond Hill, and John F. Kennedy International Airport — receives its municipal water supply from the New York City Department of Environmental Protection (DEP) Catskill–Delaware and Croton Aqueduct systems, distributed through the Queens borough water distribution network. Water hardness in Ozone Park measures 122.5 mg/L — classified as moderately hard.

Ozone Park's moderate hardness — typical of southwest Queens distribution — reflects the distribution infrastructure in the Ozone Park–South Ozone Park corridor. Ozone Park developed as a residential community in the 1890s–1920s with the extension of the Queens streetcar and elevated subway lines. The NYC DEP Queens distribution infrastructure in the Ozone Park area includes cast-iron mains of the early 20th century Queens residential build-out era. These mains accumulate moderate mineral content from the soft Catskill–Delaware source, producing the moderate 122.5 mg/L at Ozone Park — characteristic of the southwest Queens distribution zone.

At 122.5 mg/L, Ozone Park residents encounter moderate scale accumulation. Faucet aerators and showerheads develop deposits after several months — monthly cleaning with citric acid solution is practical maintenance. NYC DEP consistently delivers water meeting all New York State DOH and EPA Safe Drinking Water Act requirements.