Helena-West Helena Water Hardness & Quality Report (2026)

West Helena Water Works provides drinking water for the city of Helena-West Helena, Arkansas, a community of about 10,000 residents. The utility draws its supply entirely from groundwater, accessing the Mississippi Embayment aquifer through a network of wells. Water treatment, including disinfection and corrosion control, takes place at the local facility located at 702 Cherry St, Helena, AR 72342. Recent monitoring from 2026 indicates that six contaminants have been found above EPA health-based guidelines, with one MCL violation noted. The West Helena Water Works system is part of the Mississippi River alluvial plain watershed, interacting with overlying Quaternary loess and Pleistocene terrace deposits.

The groundwater originates from the Mississippi Embayment aquifer system, a significant resource formed from unconsolidated sands, gravels, and clays dating back to the Tertiary and Quaternary periods. This includes the Wilcox and Claiborne Formations, as well as the Cockfield Formation. These ancient deltaic and coastal plain sediments contain calcareous shell fragments and glauconitic sands. Minerals leached from surrounding limestone and dolomite outcrops, alongside dissolved bicarbonates within these formations, contribute to the water's moderate hardness. This geological makeup is distinct from the softer waters found in surface rivers or the extremely hard waters from limestone karst springs elsewhere in Arkansas.

Homeowners may notice that this moderately hard water can lead to scale buildup in appliances like water heaters, dishwashers, and washing machines, potentially reducing their efficiency by 20-30% and shortening their lifespan. Internal pipe narrowing can also occur, leading to increased pressure demands. To combat these effects, annual descaling of fixtures, regular vinegar soaks for showerheads, and flushing of water heaters are recommended maintenance practices. For persistent issues like spotting on dishes or dry skin and hair, installing a water softener is advisable. The utility's 2024 Consumer Confidence Report, available through hwhwater.com and the Arkansas Department of Health, details the treatment processes and compliance status, noting that while most MCLs are met, six contaminants exceeded health guidelines in recent tests.