New Jersey Distribution System Operator Certification
NJ DEP licenses Distribution operators in four classes — W1 through W4, graded by population served (W1 for 101+ connections and under 1,500 people, up through W4 for 50,001+ people) — on a 3-year renewal cycle.
Dense, Interconnected Networks
New Jersey has the highest population density of any US state, and its water distribution systems reflect that: dense, interconnected urban and suburban networks with heavy reliance on regional wholesale suppliers (such as New Jersey American Water and several regional water commissions) that serve multiple municipalities rather than each town operating fully independently.
Aging Infrastructure and Lead Service Lines
Aging pre-WWII cast iron infrastructure is common in older cities — Newark, Camden, Trenton, Jersey City. Lead service line replacement is now a major state