💧 ZIP Water Report

Tap water in Lewistown, MT — ZIP 59457

1 public water system serving about 5,923 people.

A
Excellent

Water systems serving 59457

Lewistown City Of
PWSID MT0000271 · serves 5,923 · groundwater
0 health-based / 1 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