Davis County, UT
The federal environmental record for Davis County (population 373,207): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
15
federal cleanup sites
7
PFAS-detecting water systems
19
TRI facilities
18
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Bountiful/Woods Cross 5th South PCE Plume | Bountiful, Woods Cross | on the NPL | 09/13/2001 |
| Five Points PCE Plume | Woods Cross | on the NPL | 09/19/2007 |
| Hill Air Force Base | Ogden | on the NPL | 07/22/1987 |
| Intermountain Waste Oil Refinery | Bountiful | deleted | 05/11/2000 |
Drinking water: PFAS testing
Public water systems serving Davis 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 |
|---|---|---|
| CENTERVILLE CITY WATER SYSTEM UTAH06001 | PFBS: 4.3 ng/L | detected |
| FARMINGTON CITY WATER SYSTEM UTAH06004 | 6:2 FTS: 30 ng/L | detected |
| SOUTH DAVIS WATER DISTRICT UTAH06009 | PFHxS: 12 ng/L PFPeA: 5.6 ng/L PFHxA: 4.6 ng/L | detected |
| SYRACUSE CITY WATER SYSTEM UTAH06012 | PFBA: 7.4 ng/L PFBS: 3.6 ng/L | detected |
| BOUNTIFUL CITY WATER SYSTEM UTAH06015 | PFBS: 3.7 ng/L PFPeA: 3 ng/L | detected |
| WEST POINT CITY WATER SYSTEM UTAH06020 | PFBA: 15 ng/L | detected |
| Woods Cross City Water UTAH06021 | PFBS: 3.8 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
19 facilities in Davis filed TRI reports for 2024, totalling 616k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HF SINCLAIR WOODS CROSS REFINING LLC | WOODS CROSS | Ammonia, n-Hexane | 195k lb |
| NEXEO SOLUTIONS LLC-CLEARFIELD | CLEARFIELD | Methanol, Xylene (mixed isomers) | 189k lb |
| BIG WEST OIL LLC | NORTH SALT LAKE | Ammonia, Hydrogen cyanide | 167k lb |
| U.S. DOD USAF HILL AFB | HILL AFB | Dichloromethane, Ethylbenzene | 21k lb |
| BONNELL ALUMINUM (CLEARFIELD) INC. | CLEARFIELD | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 12k lb |
| SILVER EAGLE REFINING WOODS CROSS | WOODS CROSS | n-Hexane, Cyclohexane | 10k lb |
| INNOPHOS LLC | NORTH SALT LAKE | Zinc compounds | 8k lb |
| KROGER CORP SMITHS FOOD & DRUG DAIRY DIV | LAYTON | Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 7k lb |
| VALLEY PAINT MANUFACTURING | WOODS CROSS | Xylene (mixed isomers), Ethylbenzene | 3k lb |
| PHILLIPS 66 CO NORTH SALT LAKE PRODUCT TERMINAL | NORTH SALT LAKE | Toluene, n-Hexane | 3k lb |
| UTILITY TRAILER MANUFACTURING | CLEARFIELD | Chromium, Manganese | 250 lb |
| STAKER & PARSON COMPANIES- SOUTH WEBER PIT OPERATIONS | OGDEN | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 250 lb |
| WESTERN EMULSIONS NORTH SALT LAKE PLANT | NORTH SALT LAKE | Polycyclic aromatic compounds, Lead | 110 lb |
| PILOT THOMAS LOGISTICS LLC - NORTH SALT LAKE | NORTH SALT LAKE | - | 0 lb |
| GENEVA ROCK PRODUCTS INC LAYTON FACILITY | LAYTON | Lead | 0 lb |
| PEAK ASPHALT LLC - COWBOY ASPHALT TERMINAL | WOODS CROSS | Polycyclic aromatic compounds | 0 lb |
| PPC FLEXIBLE PACKAGING | NORTH SALT LAKE | - | 0 lb |
| AMCOR MASONRY PRODUCTS | NORTH SALT LAKE | Lead compounds, Mercury compounds | 0 lb |
| NORTHROP GRUMMAN SYSTEMS CORP AERONAUTICS SYSTEMS | CLEARFIELD | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 401 tank facilities in Davis: 285 tanks in service and 925 closed. 341 fuel releases are on record, of which 18 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Davis 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 Davis, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BOUNTIFUL/WOODS CROSS 5TH S. PCE PLUMEBOUNTIFUL
- COYOTE MERCURY SPILLNORTH SALT LAKE
- FIVE POINTS PCE PLUMEBOUNTIFUL
- FREEPORT CENTER/NAVAL SUPPLY DEPOTCLEARFIELD
- GENERAL ELEC CO./APPARATUS SERVICE SHOPNORTH SALT LAKE
- HILL AFB MMRP BP504 POWDER BURNING PIT AT OU4HILL AFB
- HILL AFB MMRP SR502 OUTDR SMLL ARM FIRING RGE (BLDG 741)HILL AFB
- HILL AIR FORCE BASEHILL AFB
- INTERMOUNTAIN WASTE OIL REFINERYBOUNTIFUL
- KAYSVILLE MERCURY-SHADOW BREEZE ROADKAYSVILLE
- LAYTON SALVAGE YARDLAYTON
- NORTH SALT LAKE CHEMICALS EMERGENCY RESPONSENORTH SALT LAKE
- PORTER LANE PLUMECENTERVILLE
- PORTLAND CEMENT KILN DUST #1,4,5N SALT LAKE
- WOODS CROSS 800 WEST PLUMEWOODSCROSS