EPA SDWIS Compliance Records
Drinking Water Compliance Report for Salt Lake City, UT
5 public water systems serve Salt Lake City — real federal compliance history, not a marketing claim.
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Water systems serving this city
22
Total compliance records on file
4
Health-based violations
What this means for your tap water: a "health-based" violation means a system exceeded an actual contaminant safety threshold at some point — different from a paperwork or reporting violation, which is far more common and far less concerning. Salt Lake City's systems average 0.6 health-based violations each, ranking about middle-of-the-pack (#5 of 20 we track). Which specific system serves your address determines whether that history applies to you — check the list below rather than assuming.
Systems Serving Salt Lake City
SALT LAKE CITY WATER SYSTEM
381,174 people served6 violations on record, including health-based violations.
- October 2017 — MR— resolved
- September 2017 — TT(health-based)— resolved
- July 2018 — MR— resolved
- January 2011 — MR— resolved
- November 2017 — MR— resolved
GRANGER-HUNTER IMPROVEMENT DISTRICT
121,083 people served3 violations on record, none health-based.
- September 2017 — MON— resolved
- December 2019 — MR— resolved
- October 2013 — MR— resolved
HOLLIDAY WATER COMPANY
15,000 people served8 violations on record, including health-based violations.
- January 2008 — MR— resolved
- January 2008 — MR— resolved
- January 2008 — MR— resolved
- August 2016 — RPT— resolved
- February 2017 — TT(health-based)— resolved
SL COUNTY SERVICE AREA NO 3 - SNOWBIRD
5,110 people served1 violation on record, none health-based.
- July 2025 — Other— resolved
MOUNTAIN GREEN MUTUAL WATER COMPANY
3,500 people served4 violations on record, including health-based violations.
- October 2025 — TT(health-based)
- December 2025 — MON
- October 2025 — MR— resolved
- October 2025 — MON— resolved
Source: EPA Safe Drinking Water Information System (SDWIS), via Envirofacts. Water-system-level records, not address-specific — homes on private wells or served by a different system than listed here aren't reflected. A resolved violation means the system returned to compliance; it doesn't mean water quality is currently at risk.
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