Indiana American Water - Johnson County, IN Water Quality
Is Indiana American Water - Johnson County's water safe to drink?
Indiana American Water - Johnson County's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 86,813 people get their water from it, across 34,725 connections.
How this compares nationally
Out of 12,903 systems in this dataset, Indiana American Water - Johnson County ranks 12,249th by violation burden (5th percentile) - 1 violation total, 0 health-based.
Against the IN average
Among the 283 IN systems in this dataset, the average is 2.9 health-based violations - Indiana American Water - Johnson County's 0 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
Indiana American Water - Johnson County's most recent violation on record is dated 1982-06-06. Last reported to EPA: 06/30/2026.
What Indiana American Water - Johnson County's record does not cover
Everything on this page is Indiana American Water - Johnson County's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 1 logged violations can see. The guide to what this data misses covers that gap.