EPA data as of Oct 2026 · page updated 2026-10-29

Mountain Regional Water SSD

Mountain Regional Water SSD (EPA ID UTAH22137) in Park City, UT supplies surface water (rivers, lakes) to about 8,245 people: no health-based violations since 2016, latest lead result 4.5 ppb, PFAS 2 detected.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served8,245
Connections5,857
Sourcesurface water (rivers, lakes)
WholesalerNo

Health-based violations

No health-based violations reported since 2016.

Lead

Jan 20234.5 ppb
Jan 20221.7 ppb
Jan 20201.7 ppb
Jan 20193 ppb
Jan 20143.1 ppb
Jan 20112.2 ppb
Jan 20083.7 ppb
Jan 20053 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

CompoundHighest resultSamples with detectionEPA limit
PFPeA14 ppt2 of 14—
PFHxA8.1 ppt2 of 14—
HFPO-DA (GenX)not detected0 of 14—
PFDAnot detected0 of 14—
PFOAnot detected0 of 144 ppt MCL
PFOSnot detected0 of 144 ppt MCL
PFNAnot detected0 of 14—
PFHpAnot detected0 of 14—
PFHxSnot detected0 of 14—
PFBAnot detected0 of 14—
PFBSnot detected0 of 14—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

ZIP codes served

ZIP codes whose center lies in this system’s service area.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Mountain Regional Water SSD had drinking water violations?

No health-based violations reported since 2016.

What is the lead level in Mountain Regional Water SSD water?

The latest 90th-percentile lead result (Jan 2023) was 4.5 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Mountain Regional Water SSD have PFAS in its water?

PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).