Miami County, OH
The federal environmental record for Miami County (population 110,876): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
10
federal cleanup sites
1
PFAS-detecting water systems
19
TRI facilities
26
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| East Troy Contaminated Aquifer | Troy | on the NPL | 09/03/2008 |
| Miami County Incinerator | Troy | on the NPL | 09/21/1984 |
| United Scrap Lead Co., Inc. | Troy | deleted | 09/21/1984 |
| West Troy Contaminated Aquifer | Troy | on the NPL | 09/18/2012 |
Drinking water: PFAS testing
Public water systems serving Miami 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 |
|---|---|---|
| PIQUA CITY PWS OH5501211 | PFPeA: 3.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
19 facilities in Miami filed TRI reports for 2024, totalling 79k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| NOVACEL (TROY LAMINATING & COATING,INC) | TROY | Toluene, Methanol | 22k lb |
| HOBART BROTHERS CO FILLER METALS OPERATIONS TROY | TROY | Manganese And Manganese Compounds, Chromium | 15k lb |
| TIPP CITY PURPLE COW CREAMERY | TIPP CITY | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 11k lb |
| HARTZELL FAN INC | PIQUA | Styrene | 9k lb |
| DELTECH POLYMERS CORP | TROY | Styrene | 7k lb |
| GOODRICH AIRCRAFT WHEELS & BRAKES | TROY | Toluene, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 6k lb |
| DAP GLOBAL INC | TIPP CITY | n-Hexane, Toluene | 4k lb |
| HOBART BROTHERS FILLER METALS OPERATION - PIQUA | PIQUA | Manganese | 3k lb |
| CLOPAY COPORATION - TROY | TROY | Methyl methacrylate, Manganese | 1k lb |
| HARTZELL PROPELLER | PIQUA | Lead, Copper | 717 lb |
| HOBART BROTHERS CO KINGS CHAPEL | TROY | Manganese | 460 lb |
| CRANE PUMPS & SYSTEMS INC | PIQUA | Copper | 250 lb |
| PERRIGO PBM COVINGTON LLC | COVINGTON | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 183 lb |
| F&P AMERICA MANUFACTURING INC | TROY | Manganese | 98 lb |
| HOBART PLANT 27 | TROY | Chromium, Nickel | 44 lb |
| CONCRETE SEALANTS INC | TIPP CITY | Polycyclic aromatic compounds | 1 lb |
| IDC SPRING (9200 PIQUA) | PIQUA | - | 0 lb |
| POLYSOURCE LLC DBA EPSILYTE | PIQUA | - | 0 lb |
| ABBOTT LABORATORIES | TIPP CITY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 211 tank facilities in Miami: 227 tanks in service and 385 closed. 303 fuel releases are on record, of which 26 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Miami as Zone 1, the highest predicted indoor radon levels (over 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 Miami, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- DELTECH POLYMERSTROY
- EAST TROY CONTAMINATED AQUIFERTROY
- GARLAND ROAD LANDFILLW MILTON
- HOBART BROTHERS AKA LAGOONTROY
- MIAMI COUNTY INCINERATORTROY
- PIQUA HOSPITAL SITEPIQUA
- TIPP CITY NOVELTY SITETIPP CITY
- TROY OHIO MERCURY RESPONSETROY
- UNITED SCRAP LEAD CO., INC.TROY
- WEST TROY CONTAMINATED AQUIFERTROY