Mount Vernon Water Supply

Water Quality Snapshot: Mount Vernon Water Supply

Mount Vernon Water Supply is a local-owned community water system that delivers drinking water to 4,527 residents in Mount Vernon, Iowa (Linn County) through 1,360 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 37 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 26 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 12 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Iowa, EPA tracks 1,795 public water systems serving 3,114,444 people, with 138,271 cumulative violations and 27,946 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 77 violations. Statewide, 127 of 152 UCMR5-tested systems have reported PFAS detections (83.6%).

Mount Vernon Water Supply's 37 violations sit below the Iowa average.

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