Seminole County, FL
The federal environmental record for Seminole County (population 484,271): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
16
federal cleanup sites
6
PFAS-detecting water systems
8
TRI facilities
157
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| General Dynamics Longwood | Longwood | on the NPL | 09/29/2010 |
| Sanford Dry Cleaners | Sanford | on the NPL | 09/29/2010 |
Drinking water: PFAS testing
Public water systems serving Seminole 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 |
|---|---|---|
| SANFORD, CITY OF (2 WPS) FL3590205 | PFPeA: 4.9 ng/L PFOS: 4.7 ng/L PFBS: 3.6 ng/L | above final limit |
| WINTER SPRINGS, CITY OF (3 WPS) FL3590879 | PFOS: 6.9 ng/L PFOA: 5 ng/L PFPeA: 4 ng/L | above final limit |
| CHASE GROVES(CONSEC.) FL3594214 | PFOS: 6.8 ng/L PFBS: 5.1 ng/L PFOA: 4.8 ng/L | above final limit |
| ALTAMONTE SPRINGS WATER DEPT (2 WPS) FL3590026 | PFHxS: 3.8 ng/L | detected |
| CASSELBERRY, CITY OF (3 WPS) FL3590159 | PFHxS: 3.2 ng/L | detected |
| LAKE MARY, CITY OF FL3590201 | PFHxA: 4.2 ng/L PFPeA: 4.1 ng/L PFBS: 3.8 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
8 facilities in Seminole filed TRI reports for 2024, totalling 4k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| SAFETY-KLEEN SYSTEMS SANFORD (SAN) | SANFORD | Ethylene glycol, Polycyclic aromatic compounds | 2k lb |
| INLINER SOLUTIONS LLC | SANFORD | Styrene | 965 lb |
| CORE PIPE PRODUCTS INC. | SANFORD | Hydrogen fluoride, Nitric acid | 867 lb |
| DECIMAL LLC | SANFORD | - | 0 lb |
| TITAN FLORIDA-LONGWOOD RMC PLANT | LONGWOOD | Lead | 0 lb |
| ROTO OPS LLC | LAKE MARY | - | 0 lb |
| MASCHMEYER-CASSELBERRY RM | LONGWOOD | Lead | 0 lb |
| ARGOS SANFORD CONCRETE PLANT | SANFORD | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 601 tank facilities in Seminole: 396 tanks in service and 1,694 closed. 576 fuel releases are on record, of which 157 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Seminole as Zone 3, the lowest predicted indoor radon (under 2 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 Seminole, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AFFORDABLE TIRE FIREWINTER SPRINGS
- ALAFAYA TRAIL MERCURY SPILLOVIEDO
- ARTCRAFT INDUSTRIESSANFORD
- BROWN BOVERI ELECTRIC INCSANFORD
- BUNDY S & H FABRICATING & ENGSANFORD
- CAMBRIDGE INSTITUTE HG SPILLSEMINOLE
- CHULUOTA MERCURY RESPONSECHULUOTA
- GENERAL DYNAMICS LONGWOODLONGWOOD
- LAKE MARY TRASH DUMPSANFORD
- M & M AUTO PARTS AND SALVAGESANFORD
- PENNSYLVANIA AVE VOC PLUMEOVEIDO
- SANFORD DRY CLEANERSSANFORD
- SANFORD GASIFICATION PLANTSANFORD
- SPRAGUE ELECTRIC COMPANYLONGWOOD
- SUNNILAND CORPLONGWOOD
- TECHNITRONICS GROUNDWATER PLUMECASSELBERRY