Indiana American Water - Northwest

Water Quality Snapshot: Indiana American Water - Northwest

Indiana American Water - Northwest is a private-owned community water system that delivers drinking water to 210,510 residents in Greenwood, Indiana (Lake County) through 84,204 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 15 total violations for this system , of which 6 (40%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 9 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 4 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Indiana, EPA tracks 3,967 public water systems serving 5,774,616 people, with 352,710 cumulative violations and 35,932 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 88.9 violations. Statewide, 93 of 229 UCMR5-tested systems have reported PFAS detections (40.6%).

Indiana American Water - Northwest's 15 violations sit below the Indiana average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.