Onondaga Lake
E161780
Onondaga Lake is a small lake in central New York State known both as a traditional center of the Onondaga Nation and as one of the most historically polluted lakes in the United States, now undergoing long-term cleanup and restoration efforts.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Onondaga Lake canonical | 8 |
| Onondaga Lake, Syracuse, New York | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1057946 — 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: Onondaga Lake Context triple: [Syracuse, locatedNear, Onondaga Lake]
-
A.
Cayuga Lake
Cayuga Lake is the longest of New York State’s Finger Lakes, known for its scenic beauty, wineries, and role as a regional recreational and ecological hub.
-
B.
Owasco Lake
Owasco Lake is one of New York State’s Finger Lakes, known for its clear waters, scenic surroundings, and recreational activities like boating and fishing.
-
C.
Otisco Lake
Otisco Lake is one of New York State’s Finger Lakes, known for its scenic beauty, recreational opportunities, and role as a regional water resource.
-
D.
Seneca Lake
Seneca Lake is one of New York State’s largest and deepest Finger Lakes, renowned for its scenic beauty and prominent wine-producing region.
-
E.
Honeoye Lake
Honeoye Lake is one of New York State’s smaller Finger Lakes, known for its shallow depth, warm summer waters, and popularity for fishing and recreation.
- 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: Onondaga Lake Target entity description: Onondaga Lake is a small lake in central New York State known both as a traditional center of the Onondaga Nation and as one of the most historically polluted lakes in the United States, now undergoing long-term cleanup and restoration efforts.
-
A.
Cayuga Lake
Cayuga Lake is the longest of New York State’s Finger Lakes, known for its scenic beauty, wineries, and role as a regional recreational and ecological hub.
-
B.
Owasco Lake
Owasco Lake is one of New York State’s Finger Lakes, known for its clear waters, scenic surroundings, and recreational activities like boating and fishing.
-
C.
Otisco Lake
Otisco Lake is one of New York State’s Finger Lakes, known for its scenic beauty, recreational opportunities, and role as a regional water resource.
-
D.
Seneca Lake
Seneca Lake is one of New York State’s largest and deepest Finger Lakes, renowned for its scenic beauty and prominent wine-producing region.
-
E.
Honeoye Lake
Honeoye Lake is one of New York State’s smaller Finger Lakes, known for its shallow depth, warm summer waters, and popularity for fishing and recreation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
body of water
ⓘ
lake ⓘ |
| adjacentTo |
Syracuse
ⓘ
surface form:
City of Syracuse, New York
|
| basinCountry | United States of America ⓘ |
| cleanupMethod |
capping of lake bottom sediments
ⓘ
dredging of contaminated sediments ⓘ habitat restoration ⓘ wastewater treatment improvements ⓘ |
| cleanupStatus | undergoing long-term remediation ⓘ |
| country | United States of America ⓘ |
| culturalSignificance |
associated with the founding of the Haudenosaunee (Iroquois) Confederacy
ⓘ
sacred site for the Onondaga Nation ⓘ |
| ecologicalConcern |
fish consumption advisories
ⓘ
loss of aquatic habitat ⓘ |
| environmentalStatus | federal Superfund site ⓘ |
| hasFeature | Onondaga Lake Park ⓘ |
| hasNearbyInfrastructure |
Interstate 690
NERFINISHED
ⓘ
New York State Fairgrounds ⓘ |
| historicalUse |
industrial waste disposal area
ⓘ
recreational destination before heavy pollution ⓘ |
| inflows |
Nine Mile Creek
ⓘ
Onondaga Creek ⓘ |
| knownFor |
being one of the most historically polluted lakes in the United States
ⓘ
long-term cleanup and restoration efforts ⓘ severe industrial pollution ⓘ |
| locatedIn |
Central New York
ⓘ
Finger Lakes ⓘ
surface form:
Finger Lakes region (broad cultural-geographic sense)
New York ⓘ
surface form:
New York State
Onondaga County, New York NERFINISHED ⓘ |
| managedBy |
New York State Department of Environmental Conservation
ⓘ
United States Environmental Protection Agency ⓘ |
| near | Village of Liverpool, New York ⓘ |
| outflow | Seneca River ⓘ |
| partOf | Onondaga Creek–Seneca River watershed ⓘ |
| pollutants |
PCBs
ⓘ
chlorinated benzenes ⓘ mercury contamination ⓘ nutrient pollution ⓘ |
| pollutionSource |
Honeywell (formerly Allied Chemical) facilities
ⓘ
industrial discharges ⓘ municipal sewage ⓘ |
| recreation |
boating (subject to restrictions)
ⓘ
walking and biking trails around the shoreline ⓘ |
| restorationGoal | improved water quality and habitat for fish and wildlife ⓘ |
| significance | traditional center of the Onondaga Nation ⓘ |
| traditionalTerritoryOf |
Onondaga nation
ⓘ
surface form:
Onondaga Nation
|
| waterBodyType | freshwater lake ⓘ |
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: Onondaga Lake Description of subject: Onondaga Lake is a small lake in central New York State known both as a traditional center of the Onondaga Nation and as one of the most historically polluted lakes in the United States, now undergoing long-term cleanup and restoration efforts.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Onondaga Lake, Syracuse, New York