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 maximum contaminant level of 10 parts per billion for hexavalent chromium (chromium-VI) in drinking water. It directly affects public water systems, with deadlines varying by system size: large systems (10,000+ connections) must comply within 2 years, mid-sized systems (1,000-9,999 connections) within 3 years, and small systems (<1,000 connections) within 4 years after the bill takes effect. The bill does not change existing limits for total chromium but explicitly prohibits hexavalent chromium from exceeding 10 ppb. The DEP may adopt stricter standards later if recommended by the Drinking Water Quality Institute.