Olympian Water Testing™

Early Demarest families drew water from hand-dug and later drilled wells along small Hackensack River tributaries. As Bergen County urbanized in the late 19th and early 20th centuries, service shifted toward a regional utility anchored by the Hackensack Water Company’s New Milford (Van Buskirk Island) plant, commissioned in 1882—a landmark that powered countywide growth (NJ Historic Trust: Hackensack Water Works).

Today, Demarest is supplied by Veolia Water New Jersey’s North Jersey system. Raw water stored in the Oradell Reservoir is treated at the Haworth Water Treatment Plant before distribution to Bergen and Hudson County communities (Veolia: Oradell Dam; Veolia water quality update). The U.S. Geological Survey notes municipal diversions from Oradell to the Haworth facilities, underscoring this reservoir’s central role in regional supply (USGS: Oradell Reservoir site).

Private wells still serve some properties at Demarest’s edge. New Jersey’s Private Well Testing Act requires testing during real-estate transactions (and every five years for rentals), with guidance and results available through the state’s consumer portal (NJDEP Drinking Water Viewer).

For SEO-friendly regional context, compare Demarest’s reservoir-fed network with search themes like “Andover NJ water supply history,” “well water systems in Andover,” and “municipal water development in Sussex County.” These reflect a more aquifer-reliant past, where local ordinances and county programs shape well and watershed management (Sussex County water resources). In short, Demarest’s path runs from farmstead wells to a modern, regulated utility—grounded in Oradell storage, the Haworth plant, and NJDEP oversight.