💧 ZIP Water Report

Tap water in Merrillville, IN — ZIP 46368

1 public water system serving about 210,510 people.

A
Excellent

Water systems serving 46368

Indiana American Water - Northwest
PWSID IN5245015 · serves 210,510 · surface water
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology