Westport Water Hardness & Quality Report (2026)

Westport, Connecticut, in Fairfield County (Western Connecticut Planning Region) — a major southwest Connecticut affluent shoreline community (Westport is one of the most affluent and prestigious communities in Connecticut — a Fairfield County shoreline town on Long Island Sound known for its concentration of wealthy New York City-area residents, hedge fund executives, artists, and celebrities; Westport is known as a 'bedroom community' for New York City's most prosperous professionals (Westport and the broader Fairfield County 'Gold Coast' have attracted some of the most affluent residents in the United States; Westport is consistently ranked among the wealthiest communities in the country by median household income and home values)); Westport is known for its extraordinary literary and artistic heritage (many of the most significant American writers, illustrators, and artists of the 20th century lived in Westport — including F. Scott Fitzgerald (briefly), Paul Newman and Joanne Woodward (long-time Westport residents), Martha Stewart, Rod Serling, and many others; Westport has one of the most vibrant arts communities in Connecticut)), a diverse Fairfield County community with a primarily affluent professional, financial, and media industry population — draws its municipal water supply via the Aquarion Water Company. Water hardness in Westport measures 29 mg/L — classified as very soft.

Westport's very soft supply reflects the southwest Connecticut Fairfield County Saugatuck watershed's calcareous-poor crystalline geology. The Saugatuck Reservoir (Aspetuck watershed) drains the Precambrian Connecticut gneiss (calcareous-poor). Excellent Aquarion treatment produces the very soft 29 mg/L.

With hardness at 29 mg/L, Westport residents enjoy very soft water with no scaling concerns. Aquarion Water Company consistently delivers water meeting all Connecticut DEEP and EPA Safe Drinking Water Act requirements.