Requires DEP to establish maximum contaminant level for hexavalent chromium in drinking water.

This bill requires New Jersey's Department of Environmental Protection (DEP) to set a legal limit of 10 parts per billion for hexavalent chromium (chromium-VI) in drinking water. It directly affects all public water systems in the state, with phased implementation deadlines: larger systems (10,000+ connections) must comply within two years, medium systems (1,000-9,999 connections) within three years, and smaller systems (<1,000 connections) within four years after the bill takes effect. The law does not change existing limits for total chromium but specifically mandates the new chromium-VI standard. The DEP may later adopt stricter limits if recommended by the Drinking Water Quality Institute.