Santa Cruz County, AZ
The federal environmental record for Santa Cruz County (population 49,158): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
3
TRI facilities
6
open tank releases
Drinking water: PFAS testing
Public water systems serving Santa Cruz 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 |
|---|---|---|
| LIBERTY WATER RIO RICO AZ0412011 | PFOS: 40.9 ng/L PFBS: 20 ng/L PFHxS: 10.9 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
3 facilities in Santa Cruz filed TRI reports for 2024, totalling 5k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HERMOSA | PATAGONIA | Lead compounds | 5k lb |
| US CBP NOGALES BORDER PATROL STATION & RANGE #AZ0047 | NOGALES | Lead | 438 lb |
| CALPORTLAND CO RIO RICO PLANT | RIO RICO | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 82 tank facilities in Santa Cruz: 55 tanks in service and 178 closed. 66 fuel releases are on record, of which 6 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Santa Cruz 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 Santa Cruz, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ANDA LAUNDRY COINNOGALES
- THREE R MINEPATAGONIA