Tenafly is served by Veolia’s main system, which delivers water to about 807,000 people from the Oradell Reservoir, the Wanaque Reservoir, the Saddle River and Brunswick aquifer wells. Reservoir water is treated and disinfected before it reaches you, which keeps it safe but leaves chlorine taste and odor, seasonal changes in flavor, and moderate hardness that scales fixtures over time.
Veolia’s 2024 sampling met primary drinking water standards and the utility has 12 PFAS treatment systems running statewide with 14 more coming. The larger concern in older Tenafly neighborhoods is the service line: Veolia reports nearly 14,000 known lead service lines and more than 200,000 lines of lead or unknown material across its system.