Natchez Water Hardness & Quality Report (2026)

Natchez, Mississippi, in Adams County — the Adams County seat adjacent to Vidalia (Louisiana) and Sibley on the Mississippi River in southwest Mississippi — receives its municipal water from the Natchez Water Works, drawing from local groundwater (Adams County) through the southwest Mississippi water treatment system.

The soft 60.5 mg/L hardness and TDS of 146.8 mg/L reflect the southwest Mississippi groundwater supply's relatively soft character — significantly softer than the central Mississippi Delta alluvial communities (Greenwood: 104 mg/L) and the DeSoto County Memphis Sand communities (Hernando: 161 mg/L). The Natchez aquifer at Adams County is developed in Eocene Wilcox Formation (slightly calcareous sand — minor hardness contributor), Paleocene Clayton Formation (calcareous limestone — moderate hardness contributor), and Holocene Mississippi River alluvial terrace (slightly calcareous). The Eocene-Paleocene moderately calcareous formations at this southwest Mississippi position produce the soft supply.

At 60.5 mg/L, Natchez' water is soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 3.9 ppt warrants a certified drinking water filter — the Adams County southwest Mississippi industrial corridor and the Mississippi River PFAS background from the Baton Rouge-New Orleans industrial corridor downstream contribute to Natchez' readings.