Placer County, CA
The federal environmental record for Placer County (population 423,561): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
1
PFAS-detecting water systems
8
TRI facilities
11
open tank releases
Drinking water: PFAS testing
Public water systems serving Placer 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 |
|---|---|---|
| CITY OF LINCOLN CA3110004 | PFHxS: 8.5 ng/L PFOS: 4.3 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
8 facilities in Placer filed TRI reports for 2024, totalling 14k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| SIERRA PACIFIC INDUSTRIES LINCOLN DIV | LINCOLN | Ammonia, Dioxin and dioxin-like compounds | 9k lb |
| H.B. FULLER CO | ROSEVILLE | Vinyl acetate | 3k lb |
| GLADDING MCBEAN | LINCOLN | Barium And Barium Compounds, Lead | 2k lb |
| ALPHA/DYNO NOBEL | LINCOLN | Ammonia | 262 lb |
| GREENHECK FAN CORP - ROCKLIN CALIFORNIA | ROCKLIN | Manganese | 0 lb |
| VULCAN MATERIALS CO ROSEVILLE ASPHALT PLANT | ROSEVILLE | Polycyclic aromatic compounds, Benzo[g,h,i]perylene | 0 lb |
| KEYSIGHT TECHNOLOGIES INC | ROSEVILLE | - | 0 lb |
| CEMEX LINCOLN | LINCOLN | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 140 tank facilities in Placer: 409 tanks in service and 0 closed. 456 fuel releases are on record, of which 11 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Placer 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 Placer, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- POLAR STAR MINEDUTCH FLAT