cleanup · Niagara County
Stauffer Chemical / PASNY
Lewiston
Former chemical-plant property on Lewiston Road associated with a Power Authority of the State of New York parcel. The closed Class 4 site remains under an environmental easement covering approximately 23 acres.

The documented story
What happened here?
The Stauffer Chemical/PASNY site is a roughly 23-acre controlled property on Lewiston Road near the Niagara Power Project industrial landscape. Its history reflects the close physical relationship among chemical production, high-voltage infrastructure, transportation corridors, and the remade landscape around the Niagara River.
State records document a completed remedy with contamination remaining under institutional and site-management controls. The Stauffer parcel must be interpreted separately from other Lewiston and Niagara Falls chemical sites despite shared corporate and industrial geography.
The environmental easement makes that distinction legally durable by defining the controlled acreage and restricting uses or soil disturbance that could interfere with the remedy. A Class 4 designation means the site is closed but requires continued management; it does not mean the wider Power Authority landscape shares the same conditions, and it does not convert the controlled parcel into unrestricted land.
Chronology in context
Turning points in the public record
Industrial era
Chemical operations occupied the Lewiston Road property.
Investigation and remedy
DEC and responsible parties characterized and addressed contaminated site media.
Remedial completion
Major cleanup construction was completed and the site was reclassified for long-term management.
Present
A Class 4 designation and environmental easement preserve use and management requirements.
News record
Major news events
Coverage selected here marks a turning point in public awareness, policy, enforcement, employment, or cleanup. Links open at the original publisher or archive; WNYAtlas does not reproduce restricted articles or images.
A former chemical parcel remains controlled within a larger power-project landscape
DEC's Class 4 and easement records preserve approximately 23 acres of use, excavation and management restrictions; those controls apply to the defined Stauffer property rather than the entire Power Authority landscape.
New York State Department of Environmental Conservation ↗Environmental record
Documented impacts
- Historic chemical production and waste management affected defined portions of the property.
- Residual contamination remains compatible only with the assumptions and controls established by the remedy.
- The site record should not be used to assign conditions to the entire Power Authority property or neighboring parcels.
Response
Cleanup and controls
- Remedial construction addressed identified source and exposure areas under DEC oversight.
- An environmental easement controls approximately 23 acres and restricts incompatible use or disturbance.
- Site management, inspection, monitoring, and soil-handling requirements maintain the remedy.
Then and now
The site today
Stauffer Chemical/PASNY is a closed Class 4 cleanup rather than an unrestricted former factory. Long-term controls are part of the completed remedy and should remain visible in any account of redevelopment or public access.