Nassau County contains 274 EPA-regulated facilities, 16 of which are currently flagged for significant noncompliance. The county also hosts 14 Superfund sites and 12 TRI chemical reporters. EPA has assessed $5.7M in lifetime penalties and TRI reporters disclosed roughly 51.4k lb of on-site releases. That facility count is well above the New York state average of 97 per county.
| Site | City | Status |
|---|---|---|
| Applied Environmental Services | Glenwood Landing | Ready for anticipated reuse |
| Genzale Plating Co | Franklin Square | Ready for anticipated reuse |
| Mattiace Petrochemical Co Inc | Glen Cove | Construction complete |
| Stanton Cleaners Area Ground Water Contamination | Great Neck | Ready for anticipated reuse |
| Old Bethpage Landfill | Oyster Bay | Ready for anticipated reuse |
| Fulton Avenue | Garden City Park | Cleanup underway |
| Li Tungsten Corp | Glen Cove | Ready for anticipated reuse |
| Old Roosevelt Field Contaminated Gw Area | Garden City | Cleanup underway |
| Liberty Industrial Finishing | Farmingdale | Ready for anticipated reuse |
| Peninsula Boulevard Groundwater Plume | Hewlett | Cleanup underway |
| New Cassel Hicksville Ground Water Contamination | New Cassel/Hicksville | Listed on NPL |
| Claremont Polychemical | Old Bethpage | Ready for anticipated reuse |
| Hooker Chemical Plastics Corp Ruco Polymer Corp | Hicksville | Ready for anticipated reuse |
| Port Washington Landfill | Port Washington | Ready for anticipated reuse |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Ef Barrett Power Station | Island Park | 43.8k | Penalties |
| Global Inwood Terminal | Inwood | 2.8k | Compliant |
| Motiva Enterprises Llc Property | Lawrence | 2.1k | Compliant |
| Carbo Industries Property | Lawrence | 1.2k | Compliant |
| Global Glenwood Landing Terminal | Glenwood Landing | 974 | Compliant |
| Sulzer Metco Us Inc | Westbury | 535 | Compliant |
| Aero Structures Long Island Llc | Westbury | 2 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Long Beach (C) Wpcp | Long Beach | $63.0k | 2025-12-05 |
| Port Washington Yacht Club | Port Washington | $1.4k | 2014-08-19 |
| Empire Point Marina | Island Park | $1.3k | |
| Forsythe Cosmetic Group Ltd | Freeport | $0 | 2023-01-19 |
| Costco Gasoline Loc. #1215 | Oceanside | $0 | |
| Glen Cove Plant | Glen Cove | $0 | 2015-05-14 |
| Concrete Ready Mix | Inwood | $0 | |
| Jeffstar Marina | Freeport | $0 | |
| Pep Boys The #345 | Hicksville | $0 | 2024-07-31 |
| Nassau Ms4 Storm Sewers | Mineola | $0 | 2016-12-14 |
| Atlantic Beach Ms4 Storm Sewers | Hempstead | $0 | |
| Cedarhurst Ms4 Storm Sewers | Hempstead | $0 | 2016-09-14 |
| East Rockaway Ms4 Storm Sewers | Hempstead | $0 | |
| Great Neck Ms4 Storm Sewers | North Hempstead | $0 | 2019-04-25 |
| Saddle Rock Ms4 Storm Sewers | North Hempstead | $0 | 2019-08-21 |
| Flower Hill Ms4 Storm Sewers | North Hempstead | $0 |