Coconino County, AZ
The federal environmental record for Coconino County (population 144,472): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
5
federal cleanup sites
3
PFAS-detecting water systems
6
TRI facilities
39
open tank releases
Drinking water: PFAS testing
Public water systems serving Coconino 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 |
|---|---|---|
| ARIZONA WATER CO - SEDONA AZ0403003 | PFBS: 30 ng/L PFPeA: 10.3 ng/L PFOA: 10 ng/L | above final limit |
| FLAGSTAFF CITY OF AZ0403008 | PFBA: 6.1 ng/L | detected |
| GLEN CANYON NRA WAHWEAP AZ0403712 | PFBA: 5.4 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
6 facilities in Coconino filed TRI reports for 2024, totalling 112k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| NESTLE PURINA PETCARE CO | FLAGSTAFF | Propylene, Manganese And Manganese Compounds | 91k lb |
| U.S. NATL PARK SERVICE - GRAND CANYON NATIONAL PARK | GRAND CANYON | Chlorine, Lead | 14k lb |
| W. L. GORE & ASSOCIATES INC. | FLAGSTAFF | Methanol | 6k lb |
| U.S. ARMY NATIONAL GUARD CAMP NAVAJO RANGE | BELLEMONT | Lead | 796 lb |
| SCHUFF STEEL CO-FLAGSTAFF | BELLEMONT | Manganese | 12 lb |
| CEMEX - FLAGSTAFF #1971 | FLAGSTAFF | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 486 tank facilities in Coconino: 290 tanks in service and 1,265 closed. 492 fuel releases are on record, of which 39 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Coconino 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 Coconino, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CAMERON AGGREGATED URANIUM MINESCAMERON
- NAUM EL PASO NATURAL GASCAMERON
- TUBA CITY ABANDONED LDFLTUBA CITY
- U.S. CAMP NAVAJO, ARIZONA ARMY NATIONAL GUARDBELLEMONT
- USDOI BR - GLEN CANYON DAM & POWERPLANTPAGE