Easton Water Hardness & Quality Report (2026)

Easton, Pennsylvania, the Northampton County seat — a major east Pennsylvania Lehigh Valley Delaware River city (Easton is the Northampton County seat — one of the most historically significant cities in Pennsylvania; Easton has an extraordinary colonial and early American history (Easton's Centre Square was the site of a public reading of the Declaration of Independence in July 1776 — one of only three official public readings of the Declaration in the country, alongside Philadelphia and Trenton; Easton's Centre Square reading is commemorated annually); Easton is known as the 'Crayola Capital of the World' (Crayola LLC — the world's most iconic crayon and art supply brand — is headquartered in Easton; the Crayola Experience (a major family attraction in downtown Easton) is one of the most visited attractions in the Lehigh Valley); Easton is the home of Lafayette College (one of the most selective liberal arts colleges in the United States, with an outstanding engineering and liberal arts program), a diverse Northampton County community with a significant Puerto Rican-American, working-class, and college community population — draws its municipal water supply via the City of Easton Water Authority. Water hardness in Easton measures 209.5 mg/L — classified as hard.

Easton's hard supply reflects the east Pennsylvania Northampton County Lehigh Valley carbonate corridor's calcareous character. The Delaware River–Lehigh Valley watershed at Easton drains the Ordovician Epler and Jacksonburg Formations (calcareous). Limited softening produces the hard 209.5 mg/L.

At 209.5 mg/L, Easton residents face regular hard water challenges. Monthly descaling and water softeners are recommended. City of Easton Water Authority consistently delivers water meeting all Pennsylvania DEP and EPA Safe Drinking Water Act requirements.