Fernald uranium plant
E547375
Superfund site
environmental cleanup site
former U.S. Department of Energy facility
nuclear weapons production facility
uranium processing plant
The Fernald uranium plant was a U.S. Department of Energy facility near Cincinnati, Ohio, that processed uranium for nuclear weapons production and later became a major environmental cleanup site.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fernald uranium plant canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5782354 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fernald uranium plant Context triple: [Fernald Feed Materials Production Center, alsoKnownAs, Fernald uranium plant]
-
A.
Niagara Falls uranium processing plants
The Niagara Falls uranium processing plants were key industrial facilities that refined uranium ore for use in early U.S. atomic weapons development during the Manhattan Project.
-
B.
Portsmouth Gaseous Diffusion Plant (historical)
The Portsmouth Gaseous Diffusion Plant was a major U.S. uranium enrichment facility in Ohio that played a key role in producing enriched uranium for nuclear weapons and commercial nuclear power during the Cold War.
-
C.
Paducah Gaseous Diffusion Plant
The Paducah Gaseous Diffusion Plant is a former U.S. Department of Energy uranium enrichment facility in western Kentucky that played a major role in producing enriched uranium for nuclear power and defense.
-
D.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
-
E.
Springfield Nuclear Power Plant
The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fernald uranium plant Target entity description: The Fernald uranium plant was a U.S. Department of Energy facility near Cincinnati, Ohio, that processed uranium for nuclear weapons production and later became a major environmental cleanup site.
-
A.
Niagara Falls uranium processing plants
The Niagara Falls uranium processing plants were key industrial facilities that refined uranium ore for use in early U.S. atomic weapons development during the Manhattan Project.
-
B.
Portsmouth Gaseous Diffusion Plant (historical)
The Portsmouth Gaseous Diffusion Plant was a major U.S. uranium enrichment facility in Ohio that played a key role in producing enriched uranium for nuclear weapons and commercial nuclear power during the Cold War.
-
C.
Paducah Gaseous Diffusion Plant
The Paducah Gaseous Diffusion Plant is a former U.S. Department of Energy uranium enrichment facility in western Kentucky that played a major role in producing enriched uranium for nuclear power and defense.
-
D.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
-
E.
Springfield Nuclear Power Plant
The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Superfund site
ⓘ
environmental cleanup site ⓘ former U.S. Department of Energy facility ⓘ nuclear weapons production facility ⓘ uranium processing plant ⓘ |
| addedToSuperfundNPL | 1989 ⓘ |
| alsoKnownAs |
Feed Materials Production Center
NERFINISHED
ⓘ
Fernald Feed Materials Production Center NERFINISHED ⓘ |
| area | approximately 1,050 acres ⓘ |
| cleanupCompleted | 2006 ⓘ |
| cleanupCost | approximately 4.4 billion U.S. dollars ⓘ |
| cleanupProgram | DOE Office of Environmental Management NERFINISHED ⓘ |
| cleanupStrategy |
demolition of contaminated buildings
ⓘ
groundwater pump-and-treat system ⓘ on-site disposal facility construction ⓘ soil excavation and disposal ⓘ |
| constructionBegan | 1951 ⓘ |
| contaminant |
PCBs
ⓘ
asbestos ⓘ radium ⓘ radon ⓘ thorium ⓘ uranium ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| decommissioningBegan | 1991 ⓘ |
| environmentalImpact |
airborne radioactive releases
ⓘ
groundwater contamination ⓘ soil contamination ⓘ |
| healthConcern | elevated cancer risk in nearby residents ⓘ |
| legalOutcome | class-action settlement with local residents ⓘ |
| locatedIn |
Hamilton County, Ohio
NERFINISHED
ⓘ
Ohio ⓘ |
| locatedNear | Cincinnati, Ohio NERFINISHED ⓘ |
| managedBy | U.S. Department of Energy Office of Legacy Management NERFINISHED ⓘ |
| nearbyCommunity |
Fernald, Ohio
NERFINISHED
ⓘ
Ross Township, Ohio NERFINISHED ⓘ |
| operatedBy | National Lead of Ohio NERFINISHED ⓘ |
| operationsBegan | 1951 ⓘ |
| operationsEnded | 1989 ⓘ |
| ownedBy | U.S. Department of Energy NERFINISHED ⓘ |
| postCleanupUse |
Fernald Preserve
NERFINISHED
ⓘ
environmental education center ⓘ nature preserve ⓘ |
| primaryFunction |
processing uranium ore concentrates
ⓘ
producing high-purity uranium metal ⓘ producing uranium feed materials for nuclear weapons ⓘ |
| regulatoryDesignation | U.S. EPA Superfund site ⓘ |
| suppliedTo | U.S. nuclear weapons complex ⓘ |
| wasteDisposition |
off-site shipment to licensed disposal facilities
ⓘ
on-site engineered disposal cell ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Fernald uranium plant Description of subject: The Fernald uranium plant was a U.S. Department of Energy facility near Cincinnati, Ohio, that processed uranium for nuclear weapons production and later became a major environmental cleanup site.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Fernald Feed Materials Production Center