Herriman City Municipal Water Department

Water Quality Snapshot: Herriman City Municipal Water Department

Herriman City Municipal Water Department is a local-owned community water system that delivers drinking water to 60,000 residents in Herriman, Utah (Salt Lake County) through 13,989 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 1,210 total violations for this system , of which 5 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1,192 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Methoxychlor, recorded in 42 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 8.5 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Utah, EPA tracks 1,068 public water systems serving 3,870,776 people, with 169,784 cumulative violations and 10,671 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 159 violations. Statewide, 91 of 129 UCMR5-tested systems have reported PFAS detections (70.5%).

Herriman City Municipal Water Department's 1,210 violations sit above the Utah average.

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