Sullivan County, NY

The federal environmental record for Sullivan County (population 79,920): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

Superfund NPL sites

federal cleanup sites

PFAS-detecting water systems

TRI facilities

open tank releases

Superfund NPL sites

Site	City	Status	Listed
Cortese Landfill	Village of Narrowsburg	on the NPL	06/10/1986

Drinking water: PFAS testing

Public water systems serving Sullivan 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
MONTICELLO VILLAGE NY5203337	PFOA: 4.6 ng/L	above final limit
FALLSBURG WHO-LS-SF NY5203324	PFNA: 13.1 ng/L	detected
LIBERTY VILLAGE NY5203329	PFPeA: 4.1 ng/L	detected

On a system with detections? Testing and treatment options

Underground fuel tanks

EPA's UST Finder records 433 tank facilities in Sullivan: 393 tanks in service and 1,264 closed. 231 fuel releases are on record, of which 8 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Sullivan 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 - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for Sullivan, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

CORTESE LANDFILLVIL OF NARROWSBURG
ROSCOE WOOD PRODUCTSROSCOE
WALLKILL LFBLOOMINGBURG
WURTSBORO LEAD MINETOWN OF MAMAKATING