# Long Island MacArthur Airport: remedial project milestone recorded (HW) in RONKONKOMA, NY

**Score:** 30/100

| Field | Value |
|---|---|
| Site | Long Island MacArthur Airport |
| DEC program number | 152251 |
| Program | State Superfund (inactive hazardous waste) |
| Site class | Class 2: significant threat |
| Latest milestone | Remedial project milestone (2026-09-03) |
| Contaminants | perfluorooctanoic acid, Perfluorooctane Sulfonate |
| Location | 100 ARRIVAL AVENUE, RONKONKOMA, Suffolk County, 11779 |

## Why this score
- Class 2: significant threat.

Source: New York State DEC Environmental Remediation Sites (data.ny.gov) (https://data.ny.gov/d/c6ci-rzpg). Last refreshed: 2026-11-04T06:08:46.349Z.
From the NYS DEC Environmental Remediation Sites database. Milestone dates are as recorded by DEC and may be revised; a completed milestone does not mean a site is clean. Owners and operators are shown only when they are organizations. Verify with DEC.