Summit County, UT
The federal environmental record for Summit County (population 42,759): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
9
federal cleanup sites
2
PFAS-detecting water systems
3
TRI facilities
5
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Richardson Flat Tailings | Summit County | proposed | - |
Drinking water: PFAS testing
Public water systems serving Summit with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| PARK CITY WATER SYSTEM UTAH22011 | PFOS: 6.7 ng/L PFPeA: 5.8 ng/L PFOA: 4.8 ng/L | above final limit |
| MOUNTAIN REGIONAL WATER SSD UTAH22137 | 6:2 FTS: 55 ng/L PFPeA: 14 ng/L PFHxA: 8.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
3 facilities in Summit filed TRI reports for 2024, totalling 197 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| UTELITE | COALVILLE | Lead And Lead Compounds | 197 lb |
| GENEVA ROCK PRODUCTS INC. - PARK CITY FACILITY | PARK CITY | Lead | 0 lb |
| STAKER & PARSON- PARK CITY FACILITY | PARK CITY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 119 tank facilities in Summit: 84 tanks in service and 266 closed. 84 fuel releases are on record, of which 5 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Summit as Zone 2, moderate predicted indoor radon (2 to 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Summit, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BEAR HOLLOW MERCURYPARK CITY
- EMPIRE CANYONPARK CITY
- MARSAC MILLSPARK CITY
- MAZEPPAH MINING WASTEPARK CITY
- OLD PARK CITY DUMPPARK CITY
- RICHARDSON FLAT TAILINGSPARK CITY
- SILVER MAPLE CLAIMSPARK CITY
- TREASURE MOUNTAIN SPORTS COMPLEXPARK CITY
- UINTAH MINING DISTRICTPARK CITY